Method for preparing halogen substituent maleimide heat-proof flame-proof resin emulsion

The present invention is a preparation method for a halogen substitute maleimide Imide-like anti-heat flame-retardant resin emulsion. The halogen substitute maleimide Imide monomer, aryl vinyl monomer, cyano-ethylene monomer and other initiators are added into a mixing trough, and are mixed and stirred to generate homogeneous monomer mixture (a); emulsifier and other agent are added into a emulsifier, wherein (a) is also added for emulsification so as to generate monomer emulsion (b); desalination water and (b) are added to a reactor for added to the reactor polymerization reaction at the temperature of 60 DEG C to 90 DEG C; then anti-heat flame-retardant resin emulsion (c) is obtained. The anti-heat flame-retardant resin emulsion obtained by the present invention has the advantages of good appearance, even composition and structure, high heat-resistant effectiveness, high fire-retardant and polymerization efficiency and so on. The anti-heat flame-retardant resin emulsion can be widely ...

Heat resisting resin composition with improved glossiness and preparation thereof

The invention provides a heat resistant resin composition with improved lustrousness, which comprises the following raw materials based on 100 mass portions: 10 to 65 portions of maleimide heat resistant resin, 30 to 55 portions of graft polymer of conjugated diolefine rubber graft aryl vinyl monomer, nitrile grouping vinyl monomer or/and copolymerizable acrylic ester monomer, and 5 to 35 portions of biopolymer of aryl vinyl monomer and nitrile grouping vinyl monomer. The heat resistant resin composition prepared by a preparation method of a maleimide heat resistant resin composition has the advantages of excellent comprehensive performance, attractive appearance, high heat resistance and good lustrousness. The prepared heat resistant resin can be widely applied in the aspect of heat resistance and modification of ABS, PC, PBT and other materials, can be used as a material with excellent heat resistant performance, can be independently used, and can be used for preparing high heat resistant ...

Application of supergravity reactor in copolymerization of isobutene and maleic anhydride and method for copolymerization of isobutene and maleic anhydride

The invention relates to an application of a supergravity reactor in copolymerization of isobutene and maleic anhydride and a method for copolymerization of isobutene and maleic anhydride, and the method comprises the following steps: S1, introducing isobutene and a maleic anhydride solution containing an initiator into the supergravity reactor, blending isobutene and maleic anhydride, and carrying out a pre-reaction; and S2, introducing the liquid-phase product obtained in the step S1 into the reaction kettle for continuous reaction. The invention provides a novel isobutene polar copolymerization method, isobutene and maleic anhydride are fully blended in an extremely short time through a supergravity reactor, the reaction time of polar copolymerization is shortened, the polar reaction cost is reduced, and the generation rate of reactants is improved; and a more feasible method is provided for efficiently producing the isobutylene polar copolymer.

Heat resisting resin composition and preparation thereof

The invention relates to a heat-resistant resin composition and a preparation method thereof. The resin composition comprises the following: 10 to 65 portions of maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diene rubber grafted aryl ethylene unit body and nitrile vinyl unit, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The heat-resistant resin composition prepared by the method for preparing the maleimide heat-resistant resin composition has the advantages of good appearance and high heat resistance, and is a heat-resistant material with good performance. The prepared heat-resistant resin can be widely used for heat-resistant modification of materials, such as ABS, PC, PBT and the like. As a material with excellent heat-resistant performancs, the resin composition can be independently used, and can also be used for preparing high heat-resistant parts of automobiles and home appliances.

Heat resisting flame retardant resin composition with improved glossiness and preparation thereof

The invention relates to a heat-resistant flame-retardant resin composition with improved brightness and a preparation method thereof. Based on 100 parts by weight, the resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit, a nitrile vinyl unit and a copolymerizable acylicester unit, and 5-35 parts of a binary copolymer of an aryl ethylene unit and the nitrile vinyl unit. The halogen substituent maleimide heat-resistant flame-retardant resin composition prepared by the method has the advantages of nice appearance, flame retardation, good brightness and high heat resistance, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material with excellent ...

Maleimide heat resisting flame retardant resin composition containing halogen substituent and preparation thereof

The invention provides a halogen substituted maleimide weather-proof heat-resistant flame-retardant resin composition and a preparation method thereof. The resin composition comprises the following: 10 to 65 portions of halogen substituted maleimide heat-resistant flame-retardant resin, 30 to 55 portions of graft polymer of acrylic ester elastomer grafted aryl ethylene monomer and nitrile vinyl monomer, and 5 to 35 portions of biopolymer of aryl ethylene unit and nitrile vinyl unit. The prepared weather-proof heat-resistant flame-retardant resin composition has the advantages of good appearance, good weather resistance, high heat resistance and flame retardance, and is a heat-resistant flame-retardant material with good performance. The prepared weather-proof heat-resistant flame-retardant resin can be widely used for heat-resistant flame-retardant modification of materials, such as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant performances, ...

Method for preparing maleimide heat-proof resin emulsion

The present invention relates to the preparation method for a maleimide heat-resistant resin emulsion. The preparation method can be divided into two parts. The composition and the operating condition of the preparation method are: maleimide monomer, aryl vinyl monomer, nitrile-ethylene monomer, oil-soluble thermal decomposition initiator (the decomposition half-life of the initiator at the temperature of 100 DEG C is less than four hours) are added into a mixing trough, and are mixed and stirred to form homogeneous monomer mixed solution (a); Then emulsifier is added into a reactor, and is stirred; then (a) is added to the reactor for emulsification; after the emulsification, the mixture is heated for polymerization to generate heat-resistant resin emulsion (b). The obtained heat-resistant resin emulsion has the advantages of good appearance, even composition and structure, high heat-resistant effectiveness, high fire-retardant and polymerization efficiency and so on. The anti-heat flame-retardant ...

Weather-resistant halogen substituent maleimide heat resisting flame retardant resin composition and preparation thereof

The invention provides a weatherproof halogen substituent maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. The resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of acrylic ester elastomer graft aryl ethylene monomers and nitrile vinyl monomers and 5-35 parts of a binary copolymer of aryl ethylene monomers and the nitrile vinyl monomers. The prepared weatherproof heat-resistant flame-retardant resin composition has the advantages of nice appearance, good weatherability, high heat resistance and flame retardation, and the composition is a heat-resistant flame-retardant material with excellent properties. The prepared weatherproof heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant properties ...

Polyacrylate resin composition and preparation method thereof

The invention discloses a polyacrylate resin composition and a preparation method thereof. The polyacrylate resin composition comprises the following components (based on 100 mass portions of composition): 30 to 60 portions of aryl vinyl monomer-nitrile vinyl monomer graft copolymer A, 35 to 65 portions of vinyl benzene-acrylonitrile copolymer B, and 0 to 8 portions of one or more of butyronitrile rubber powder, butylbenzene rubber powder and polybutadiene powder C, wherein the aryl vinyl unit in the copolymer accounts for 65 to 78 percent, and the nitrile vinyl unit accounts for 22 to 35 percent; the aryl vinyl monomer-nitrile vinyl monomer graft copolymer A is a graft copolymer which uses polyacrylate and polydiene as mixed graft core (A1) and uses aryl vinyl monomer and nitrile vinyl monomer as graft shell (A2); and the latex particle diameter of the polyacrylate graft core is 200 to 600 nanometers, the content of gel is 88 to 93 percent, the polyacrylate unit in the graft copolymer ...

Method for synthesizing maleimide heat-proof resin emulsion

The present invention discloses a preparation method for a maleimide imide-like anti-heat resin emulsion: a reactor with a stirring device is added with emulsifier, and some aryl vinyl monomer, cyano-ethylene monomer, and oil-soluble thermal decomposition initiator and other agents for emulsification so as to generate primary emulsion (a); the remained maleimide monomer, aryl vinyl monomer, cyano-ethylene monomer, and oil-soluble thermal decomposition initiator and other agents are added into a mixing trough so as to generate homogeneous monomer mixed liquid(b); the emulsifier and (b) are added into the emulsifier and are stirred for emulsion so as to generate monomer emulsion (c); the monomer emulsion (c) is added into the reactor to mix with (a) for polymerization reaction which generates heat-resistant polymer resin emulsion (d). The anti-heat resin emulsion obtained by the present invention has the advantages of good appearance, even composition and structure, high heat-resistant effectiveness ...

Maleimide heat resisting composition and preparation method

The invention relates to a maleimide heat-resistant resin composition and a preparation method thereof. The resin composition comprises 10-65 parts of maleimide heat-resistant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit and a nitrile vinyl unit and 5-35 parts of a binary copolymer of aryl ethylene monomers and nitrile vinyl monomers. The maleimide heat-resistant resin composition prepared by the method has the advantages of nice appearance and high heat resistance, and the resin composition is a heat-resistant material with excellent properties.The prepared heat-resistant resin can be widely used in heat resistance and modification of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant property, the resin composition can be used alone for preparing high heat-resistant parts of automobiles and household electrical appliances.

Long-chain branched high-density polyethylene and preparation method thereof

The invention relates to long-chain branched high-density polyethylene, which is obtained by melting and mixing 88.0-99.999 parts by weight of high-density polyethylene and 99.999-99.999 parts by weight of an azo initiator. 0.001 to 2 parts by weight of the azo initiator; the high-density polyethylene is an ethylene homopolymer or copolymer, the content of double bonds is 0.01-0.5 mol%, the melt index is 0.001-10 g/10 min, and the density is 0.940-0.970 g/cm < 3 >. The invention also relates to a preparation method of the long-chain branched high-density polyethylene.

Preparation method for improving performance of polypropylene composition

The invention relates to a preparation method for improving the performance of a polypropylene composition, which comprises the following steps: (1) mixing anti-impact polypropylene, a degradation agent, a cross-linking agent, a nucleating agent and an antioxidant to obtain a premix; and (2) extruding the premix through a twin-screw extruder with a micro-nano laminated die head, extruding the premix through the twin-screw extruder, and then extruding the premix through the micro-nano laminated die head. The performance of the polypropylene composition is improved and controllable by using simple raw materials and the preparation method.

Maleimide heat resisting resin composition with improved glossiness and preparation thereof

The invention provides a maleimide heat-resistant resin composition with improved lustrousness. The heat-resistant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diolefine rubber graft aryl vinyl monomer, nitrile grouping vinyl monomer or/and copolymerizable acrylic ester monomer of which copolymerizable acrylic ester monomer accounts for 0 to 10 mass percent, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The heat-resistant composition prepared by a preparation method of the maleimide heat-resistant composition has the advantages of excellent comprehensive performance, attractive appearance, high heat resistanceand good lustrousness. The prepared heat-resistant resin can be widely applied in the aspect of heat resistance and modification of ABS, PC, PBT and other materials, can be used as a material with excellent ...

Maleimide heat resisting flame retardant resin composition with improved glossiness and preparation thereof

The invention provides a halogen substituted maleimide heat-resistant flame-retardant resin composition with improved lustrousness and a preparation method thereof. The heat-resistant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of halogen substituted maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diolefinerubber graft aryl vinyl monomer, nitrile grouping vinyl monomer or/and copolymerizable acrylic ester monomer, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The prepared halogen substituted maleimide heat-resistant flame-retardant resin composition has the advantages of attractive appearance, flame retardance, good lustrousness and high heat resistance. Theprepared heat-resistant flame-retardant resin can be widely applied in the aspect of heat-resistant flame-retardant modification of ABS, PC, PBT and other materials, can be used as a material with excellent ...

Maleimide heat resisting resin composition with improved glossiness and preparation thereof

The invention provides a maleimide heat-resistant resin composition with improved lustrousness. The heat-resistant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diolefine rubber graft aryl vinyl monomer, nitrile grouping vinyl monomer or/and copolymerizable acrylic ester monomer of which copolymerizable acrylic ester monomer accounts for 0 to 10 mass percent, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The heat-resistant composition prepared by a preparation method of the maleimide heat-resistant composition has the advantages of excellent comprehensive performance, attractive appearance, high heat resistance and good lustrousness. The prepared heat-resistant resin can be widely applied in the aspect of heat resistance and modification of ABS, PC, PBT and other materials, can be used as a material with excellent ...

Heat resisting flame retardant resin composition with improved glossiness and preparation thereof

The invention relates to a heat-resistant flame-retardant resin composition with improved brightness and a preparation method thereof. Based on 100 parts by weight, the resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit, a nitrile vinyl unit and a copolymerizable acylic ester unit, and 5-35 parts of a binary copolymer of an aryl ethylene unit and the nitrile vinyl unit. The halogen substituent maleimide heat-resistant flame-retardant resin composition prepared by the method has the advantages of nice appearance, flame retardation, good brightness and high heat resistance, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material with excellent ...

Heat resisting resin composition and preparation thereof

The invention relates to a heat-resistant resin composition and a preparation method thereof. The resin composition comprises the following: 10 to 65 portions of maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diene rubber grafted aryl ethylene unit body and nitrile vinyl unit, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The heat-resistant resin composition prepared by the method for preparing the maleimide heat-resistant resin composition has the advantages of good appearance and high heat resistance, and is a heat-resistant material with good performance. The prepared heat-resistant resin can be widely used for heat-resistant modification of materials, such as ABS, PC, PBT and the like. As a material with excellent heat-resistant performancs, the resin composition can be independently used, and can also be used for preparing high heat-resistant parts of automobiles and home appliances.

Heat resisting flame retardant resin composition and preparation thereof

The invention provides a halogen substituent maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. Based on 100 parts by weight, the resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit and a nitrile vinyl unit and 5-35 parts of a binary copolymer of aryl ethylene monomers and nitrile vinyl monomers. The halogen substituent maleimide heat-resistant flame-retardant resin composition prepared by the method has the advantages of flame retardation and high heat resistance, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant properties, the ...

Method for synthesizing maleimide heat-proof resin emulsion

Weather resistant heat resisting flame retardant resin composition and preparation thereof

The invention provides a weatherproof heat-resistant flame-retardant resin composition and a preparation method thereof. The resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of acrylic ester elastomer graft aryl ethylene monomers and nitrile vinyl monomers and 5-35 parts of a binary copolymer of aryl ethylene monomers and the nitrile vinyl monomers. The prepared weatherproof heat-resistant flame-retardant resin composition has the advantages of nice appearance, good weatherability, high heat resistance and flame retardation, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared weatherproof heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant properties, the resin composition ...

Maleimide composition containing halogen substituted radical and preparation

The invention provides a halogen substituent maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. Based on 100 parts by weight, the halogen substituent maleimide heat-resistant flame-retardant resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit and a nitrile vinyl unit and 5-35 parts of a binary copolymer of aryl ethylene monomers and the nitrile vinyl units. The halogen substituent maleimide heat-resistant flame-retardant resin composition prepared by the method has the advantages of high flame retardation and high heat resistance, and the resin composition is a heat-resistant flame-retardant material withexcellent properties. The prepared heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material ...

Method for preparing halogen substituent maleimide heat-proof flame-proof resin emulsion

Method for preparing maleimide heat-proof resin emulsion

The present invention relates to the preparation method for a maleimide heat-resistant resin emulsion. Maleimide monomer, aryl vinyl monomer, nitrile group - ethylene monomer, oil-soluble thermal decomposition initiator and other agents are added into a mixing trough, and are mixed and stirred to form homogeneous monomer mixed solution (a); Then emulsifier and other agents are added into a reactor, and is stirred; then (a) is added to the reactor for emulsification so as to generate monomer emulsion (b); then desalination water and (b) are added to the reactor for polymerization reaction at the temperature of 60 DEG C to 90 DEG C; after the process, heat-resistant resin emulsion (c) is obtained. The anti-heat flame-retardant resin emulsion can be widely used in the improvement of anti-heat and flame-retardant effectiveness of ABS, PC, PBT and other materials. When used alone, the anti-heat flame-retardant resin emulsion can also be used in the anti-heat and flame-retardant componentsof ...

Method for synthesizing heat resisting flame-retarded resin emulsion

A synthetic method of a heat-resistant flame-retardant resin emulsion comprises the following steps: adding primary emulsion (a) formed by a small amount of monomers, an emulsifying agent and an initiator to a reactor, then heating to 30-100 DEG C for a certain time, and respectively and continuously or periodically and intermittently adding a monomer solution (b) with homogeneous phase and emulsion (c) of the emulsifying agent to the reactor to be mixed with the primary emulsion (a) for polymerization. The synthetic method can help obtain polymer emulsion with high conversion ratio and wide adjustment range of copolymer structure and composition, easily control reaction and obtain the product with high heat resistance and good flame retardance. The prepared heat-resistant flame-retardantresin emulsion has uniform structure, high heat resistance and good flame retardance, and very ideal yield and stability, can be widely used for modifying the heat resistance and the flame retardanceof ...

Method for producing high conversion rate butadiene-acrylonitrile copolymer rubber

The invention provides a method for producing butadiene-acrylonitrile copolymerizing rubber with high conversion rate. The method is to mix the butadiene monomer accounting for 85 to 50 percent of the total monomer mass and the acrylonitrile monomer accounting for 15 to 50 percent of the total monomer mass, and polymerize the two monomers at a temperature of between 5 and 12 DEG C to obtain the butadiene-acrylonitrile copolymerizing rubber. The method is characterized in that an emulsifying agent added at initial stage is the emulsifying agent of alkylbenzene sulfonates of C8 to C16 or/and alkyl sulfates; an additional emulsifying agent is the emulsifying agent of fatty acid salts of C12 to C20; a molecular weight regulator is added by more than two times; and an initiating agent is a redox system initiating agent. With the method, the polymerization conversion of NBR can reach over 90 percent; the gel content of a polymer structure is below 1.0 weight percent; Mooney viscosity is between ...

Method for copolymerizing isobutene and maleic anhydride

The invention relates to a method for copolymerizing isobutene and maleic anhydride, which comprises the following steps: S1, introducing isobutene and a maleic anhydride solution containing an initiator into a supergravity reactor, blending the isobutene and the maleic anhydride, and carrying out pre-reaction; and S2, introducing the liquid-phase product obtained in the step S1 into a reaction tube reactor for continuous reaction. The invention provides a novel method for polar copolymerization of isobutene, isobutene and maleic anhydride are fully blended in an extremely short time through a supergravity reactor and a reaction tubular reactor, and the efficiency of further polar copolymerization reaction is accelerated by controlling the time and temperature of polar reaction and the concentration distribution of reactants. The reaction time of further polar copolymerization is shortened, the polar reaction cost is reduced, and the generation rate of reactants is increased; and a more ...

Method for preparing halogen substituent maleimide heat-proof flame-proof resin emulsion

Heat resisting flame-retarded resin and synthesizing method thereof

The invention provides a heat-resistant flame-retardant resin emulsion and a synthetic method thereof. When the total weight of the resin emulsion is 100 parts on dry basis, ranges of the main structural units are as follows: 5-20 parts of a maleimide unit, 10-30 parts of a maleimide unit containing halogen substituents, 20-45 parts of an arylethene unit and 15-35 parts of a vinyl nitrile unit. The heat-resistant flame-retardant resin emulsion has the vitrification point of 135-170 DEG C and Vicat softening temperature of 135-190 DEG C. The synthetic method is characterized by controllable reaction, highly heat-resistant product and good flame retardance. The heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like, or can be used alone for preparing high heat-resistant parts of automobiles and household appliances and the like.

Weather resistant maleimide heat resisting flame retardant resin composition containing halogen substituent and preparation thereof

The invention provides a weather-proof halogen substituted maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. The resin composition comprises the following: 10 to 65 portions of halogen substituted maleimide heat-resistant flame-retardant resin, 30 to 55 portions of graft polymer of acrylic ester elastomer grafted aryl ethylene monomer and nitrile vinyl monomer, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The prepared weather-proof heat-resistant flame-retardant resin composition has the advantages of good appearance, good weather resistance, high heat resistance and flame retardance, and is a heat-resistant flame-retardant material with good performance. The prepared weather-proof heat-resistant flame-retardant resin can be widely used for heat-resistant flame-retardant modification of materials, such as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant performances ...

Polyacrylate resin composition and preparation method thereof

The invention discloses a polyacrylate resin composition and a preparation method thereof. The polyacrylate resin composition comprises the following components (based on 100 mass portions of composition): 30 to 60 portions of aryl vinyl monomer-nitrile vinyl monomer graft copolymer A, 35 to 65 portions of vinyl benzene-acrylonitrile copolymer B, and 0 to 8 portions of one or more of butyronitrile rubber powder, butylbenzene rubber powder and polybutadiene powder C, wherein the aryl vinyl unit in the copolymer accounts for 65 to 78 percent, and the nitrile vinyl unit accounts for 22 to 35 percent; the aryl vinyl monomer-nitrile vinyl monomer graft copolymer A is a graft copolymer which uses polyacrylate and polydiene as mixed graft core (A1) and uses aryl vinyl monomer and nitrile vinyl monomer as graft shell (A2); and the latex particle diameter of the polyacrylate graft core is 200 to 600 nanometers, the content of gel is 88 to 93 percent, the polyacrylate unit in the graft copolymer ...

Method for preparing crosslinking butadiene-acrylonitrile copolymer rubber

The invention relates to a method for preparing cross-linking type butadiene-acrylonitrile copolymerizing rubber, which is characterized in that a butadiene monomer and an acrylonitrile monomer are mixed; 0.05 to 3.0 portions of cross-linking agent based on the mass portion of the total monomers is added into the mixture by two times or more than two times; 0.8 to 5.0 portions of emulsifying agents of alkyl sulfates of C8 to C16 or alkylbenzene sulfonates, a molecular weight regulator, a persulfate initiator, an activating agent, desalted water and so on are added into the mixture to finish polyreaction at a temperature of between 10 and 50 DEG C; and the polyreaction is finished when the monomer conversion is between 90 and 97 percent. The method for preparing the cross-linking type butadiene-acrylonitrile copolymerizing rubber is adopted to obtain butadiene-acrylonitrile copolymerizing rubber with the structural gel content of between 30 and 90 percent. The processability of the obtained ...

Maleimide heat resisting flame retardant resin composition containing halogen substituent and preparation

The invention provides a halogen substituted maleimide heat-resistant flame-retardant resin composition with improved lustrousness and a preparation method thereof. The heat-resistant flame-retardant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of halogen substituted maleimide heat-resistant flame-retardant resin, 30 to 55 portions of graft polymer of conjugated diolefine rubber graft aryl vinyl unit and nitrile grouping vinyl unit, and 5 to 35 portions of biopolymer of aryl vinyl monomer and nitrile grouping vinyl unit. The heat-resistant flame-retardant resin composition prepared by the preparation method of the halogen substituted maleimide heat-resistant flame-retardant resin composition has the advantages of flame retardance and high heat resistance, and is a heat-resistant flame-retardant material with good performance. The prepared heat-resistant flame-retardant resin can be widely applied in the aspect of heat-resistant flame-retardant ...

Method for preparing maleimide heat-proof resin emulsion

The present invention relates to the preparation method for a maleimide heat-resistant resin emulsion. The preparation method can be divided into two parts. The composition and the operating condition of the preparation method are: maleimide monomer, aryl vinyl monomer, nitrile-ethylene monomer, oil-soluble thermal decomposition initiator (the decomposition half-life of the initiator at the temperature of 100 DEG C is less than four hours) are added into a mixing trough, and are mixed and stirred to form homogeneous monomer mixed solution (a); Then emulsifier is added into a reactor, and is stirred; then (a) is added to the reactor for emulsification; after the emulsification, the mixture is heated for polymerization to generate heat-resistant resin emulsion (b). The obtained heat-resistant resin emulsion has the advantages of good appearance, even composition and structure, high heat-resistant effectiveness, high fire-retardant and polymerization efficiency and so on. The anti-heat flame-retardant ...

Special material for polypropylene aluminum laminated film and preparation method thereof

The invention discloses a special material for a polypropylene aluminum laminated film and a preparation method of the special material, the special material comprises polypropylene resin, a nucleating agent, inorganic particles and polymer-coated inorganic particle microspheres, the polymer in the polymer-coated inorganic particle microspheres is an amphiphilic polymer, and the polymer in the polymer-coated inorganic particle microspheres is an amphiphilic polymer. The inorganic particles in the polymer coated inorganic particle microspheres are nano SiO2. The transparent nucleating agent of a specific type is selected to cooperate with the polymer coated inorganic particle microspheres and the nano inorganic particles, so that the transparency, thickness uniformity, small molecule migration precipitation resistance and volatility of the BOPP film are improved, and the special material is suitable for preparing a high-brightness polypropylene laser aluminizing high-end film.

Halogen substituent-containing maleimide heat resisting flame retardant resin composition with improved glossiness and preparation thereof

The invention provides a halogen substituent maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. Based on 100 parts by weight, the halogen substituent maleimide heat-resistant flame-retardant resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant resin, 30-55 parts of a graft polymer of conjugated diene rubber graft aryl ethylene monomers, nitrile vinyl monomers and/or copolymerizable acylic ester monomers, and 5-35 parts of a binary copolymer of aryl ethylene monomers and the nitrile vinyl monomers. The prepared heat-resistant flame-retardant resin composition has the advantages of nice appearance, flame retardation, good brightness and high heat resistance, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the ...

Method for preparing halogen substituent maleimide heat-proof flame-proof resin emulsion

The present invention relates to the preparation method for a halogen substitute maleimide Imide-like anti-heat flame-retardant resin emulsion. The preparation method can be divided into two parts. The components and the operating condition of the present invention are: The halogen substitute maleimide Imide monomer, aryl vinyl monomer, cyano-ethylene monomer and other initiators are added into a mixing trough, and are mixed and stirred to generate homogeneous monomer mixture (a); emulsifier and other agent are added into a emulsifier, wherein (a) is also added for emulsification so as to generate anti-heat flame-retardant resin emulsion (b) under heating. The anti-heat flame-retardant resin emulsion obtained by the present invention has the advantages of good appearance, even composition and structure, high heat-resistant effectiveness, high fire-retardant and polymerization efficiency and so on. The anti-heat flame-retardant resin emulsion can be widely used in the improvement of anti-heat ...

Method for synthesizing latex of heatresistant resin in maleimide class

Melt-blown polypropylene material with low degradation agent residue and preparation method thereof

The invention relates to a melt-blown polypropylene material with low degradation agent residue, the melt-blown polypropylene material is obtained by mixing and reacting the following raw materials: a polypropylene intermediate and a degradation agent reactant, the polypropylene intermediate is obtained by mixing and reacting polypropylene, a degradation agent, an antioxidant and a slipping agent; the polypropylene composite material is prepared from the following components in percentage by weight: 50wt%-99wt% of polypropylene, 0.05 wt%-3wt% of a degradation agent, 0.05 wt%-5wt% of a degradation agent reactant, 0.10 wt%-6wt% of an antioxidant and 0.05 wt%-4wt% of a slipping agent. The degradation agent reactant is added into the melt-blown polypropylene material, so that the residual quantity of the degradation agent in the melt-blown polypropylene material is obviously reduced, the secondary degradation reaction caused by the residual quantity of the degradation agent in the subsequent ...

Method for synthesizing halogen substituent maleimide heat-proof flame-proof resin emulsion

The present invention relates to the synthesis method of a halogen substitute maleimide Imide-like anti-heat flame-retardant resin emulsion. The synthesis process can be divided into four steps. The components and the operating condition of the present invention are: emulsifier, some aryl ethylene monomer, cyano-ethylene monomer, initiator and other agents are added into a reactor for emulsification so as to generate the primary emulsion (a); the halogen substitute maleimide monomer, the remained aryl ethylene monomer and cyano-ethylene monomer are added into a mixing trough to form homogeneous monomer mixture (b); desalination of water, initiator, emulsifier, and (b) are added into a emulsifier for emulsification so as to generate monomer emulsion (c); when (a) is formed,(c) is added into the reactor to mix with (a) for polymerization reaction. The anti-heat flame-retardant resin emulsion obtained by the present invention has the advantages of good appearance, even composition and structure ...

Weather resistant heat resisting flame retardant resin composition and preparation thereof

The invention provides a weatherproof heat-resistant flame-retardant resin composition and a preparation method thereof. The resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of acrylic ester elastomer graft aryl ethylene monomers and nitrile vinyl monomers and 5-35 parts of a binary copolymer of aryl ethylene monomers and the nitrile vinyl monomers. The prepared weatherproof heat-resistant flame-retardant resin composition has the advantages of nice appearance, good weatherability, high heat resistance and flame retardation, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared weatherproof heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant properties, the resin composition ...

Maleimide heat resisting flame retardant resin composition with improved glossiness and preparation thereof

The invention provides a halogen substituted maleimide heat-resistant flame-retardant resin composition with improved lustrousness and a preparation method thereof. The heat-resistant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of halogen substituted maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diolefine rubber graft aryl vinyl monomer, nitrile grouping vinyl monomer or/and copolymerizable acrylic ester monomer, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The prepared halogen substituted maleimide heat-resistant flame-retardant resin composition has the advantages of attractive appearance, flame retardance, good lustrousness and high heat resistance. The prepared heat-resistant flame-retardant resin can be widely applied in the aspect of heat-resistant flame-retardant modification of ABS, PC, PBT and other materials, can be used as a material with excellent ...

Heat resisting resin composition with improved glossiness and preparation thereof

The invention provides a heat resistant resin composition with improved lustrousness, which comprises the following raw materials based on 100 mass portions: 10 to 65 portions of maleimide heat resistant resin, 30 to 55 portions of graft polymer of conjugated diolefine rubber graft aryl vinyl monomer, nitrile grouping vinyl monomer or/and copolymerizable acrylic ester monomer, and 5 to 35 portions of biopolymer of aryl vinyl monomer and nitrile grouping vinyl monomer. The heat resistant resin composition prepared by a preparation method of a maleimide heat resistant resin composition has the advantages of excellent comprehensive performance, attractive appearance, high heat resistance and good lustrousness. The prepared heat resistant resin can be widely applied in the aspect of heat resistance and modification of ABS, PC, PBT and other materials, can be used as a material with excellent heat resistant performance, can be independently used, and can be used for preparing high heat resistant ...

Method for synthesizing heat resisting flame-retarded resin emulsion

A synthetic method of a heat-resistant flame-retardant resin emulsion comprises the following steps: adding primary emulsion (a) formed by a small amount of monomers, an emulsifying agent and an initiator to a reactor, then heating to 30-100 DEG C for a certain time, and respectively and continuously or periodically and intermittently adding a monomer solution (b) with homogeneous phase and emulsion (c) of the emulsifying agent to the reactor to be mixed with the primary emulsion (a) for polymerization. The synthetic method can help obtain polymer emulsion with high conversion ratio and wide adjustment range of copolymer structure and composition, easily control reaction and obtain the product with high heat resistance and good flame retardance. The prepared heat-resistant flame-retardant resin emulsion has uniform structure, high heat resistance and good flame retardance, and very ideal yield and stability, can be widely used for modifying the heat resistance and the flame retardance of ...

Method for synthesizing halogen substituent maleimide heat-proof flame-proof resin emulsion

Method for synthesizing halogen substituent maleimide heat-proof flame-proof resin emulsion

Maleimide heat resisting composition containing halogen substituent and preparation

The invention provides a halogen substituent maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. Based on 100 parts by weight, the halogen substituent maleimide heat-resistant flame-retardant resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit and a nitrile vinyl unit and 5-35 parts of a binary copolymer of aryl ethylene monomers and the nitrile vinyl units. The halogen substituent maleimide heat-resistant flame-retardant resin composition prepared by the method has the advantages of high flame retardation and high heat resistance, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material ...

Heat resisting flame retardant resin composition with improved glossiness and preparation thereof

The invention provides a heat-resistant flame-retardant resin composition with improved lustrousness and a preparation method thereof. The heat-resistant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of halogen substituted maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diene rubber grafted aryl ethylene unit, nitrile vinyl unit and/or copolymerized acrylic ester unit, and 5 to 35 portions of biopolymer of aryl ethylene unit and nitrile vinyl unit. The prepared heat-resistant flame-retardant resin composition has the advantages of good appearance, good flame retardance and lustrousness and high heat resistance, and is a heat-resistant flame-retardant material with good performance. The prepared heat-resistant flame-retardant resin can be widely used for heat-resistant flame-retardant modification of materials, such as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant ...

Maleimide heat resisting composition and preparation

The invention relates to a maleimide heat-resistant resin composition and a preparation method thereof. The resin composition comprises 10-65 parts of maleimide heat-resistant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit and a nitrile vinyl unit and 5-35 parts of a binary copolymer of aryl ethylene monomers and nitrile vinyl monomers. The maleimide heat-resistant resin composition prepared by the method has the advantages of nice appearance and high heat resistance, and the resin composition is a heat-resistant material with excellent properties. The prepared heat-resistant resin can be widely used in heat resistance and modification of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant property, the resin composition can be used alone for preparing high heat-resistant parts of automobiles and household electrical appliances.

Heat resisting flame retardant resin composition with improved glossiness and preparation thereof

The invention provides a heat-resistant flame-retardant resin composition with improved lustrousness and a preparation method thereof. The heat-resistant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of halogen substituted maleimide heat-resistant resin, 30 to 55 portions of graft polymer of conjugated diene rubber grafted aryl ethylene unit, nitrile vinyl unit and/or copolymerized acrylic ester unit, and 5 to 35 portions of biopolymer of aryl ethylene unit and nitrile vinyl unit. The prepared heat-resistant flame-retardant resin composition has the advantages of good appearance, good flame retardance and lustrousness and high heat resistance, and is a heat-resistant flame-retardant material with good performance. The prepared heat-resistant flame-retardant resin can be widely used for heat-resistant flame-retardant modification of materials, such as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant ...

Method for producing high conversion rate butadiene-acrylonitrile copolymer rubber

The present invention provides a method for producing butadiene-acrylonitrile copolymerizing rubber with high conversion rate. The method is to mix the butadiene monomer accounting for 85 to 50 percent of the total monomer mass and the acrylonitrile monomer accounting for 15 to 50 percent of the total monomer mass, and polymerize the two monomers at a temperature of between 5 and 12 DEG C to obtain the butadiene-acrylonitrile copolymerizing rubber. The method is characterized in that an emulsifying agent added at initial stage is the emulsifying agent of alkylbenzene sulfonates of C8 to C16 or/and alkyl sulfates; an additional emulsifying agent is the emulsifying agent of fatty acid salts of C12 to C20; a molecular weight regulator is added by more than two times; and an initiating agent is a redox system initiating agent. With the method, the polymerization conversion of NBR can reach over 90 percent; the gel content of a polymer structure is below 1.0 weight percent; Mooney viscosity ...

Maleimide heat resisting flame retardant resin composition containing halogen substituent and preparation

The invention provides a halogen substituted maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. The heat-resistant flame-retardant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of halogen substituted maleimide heat-resistant flame-retardant resin, 30 to 55 portions of graft polymer of conjugated diolefine rubber grafted aryl ethylene unit and nitrile vinyl unit, and 5 to 35 portions of biopolymer of aryl ethylene unit and nitrile vinyl unit. The heat-resistant flame-retardant resin composition prepared by the preparation method of the halogen substituted maleimide heat-resistant flame-retardant resin composition has the advantages of flame retardance and high heat resistance, and is a heat-resistant flame-retardant material with good performance. The prepared heat-resistant flame-retardant resin can be widely used for heat-resistant flame-retardant modification of materials, such as ABS, PC ...

Maleimide heat resisting flame retardant resin composition containing halogen substituent and preparation

The invention provides a halogen substituted maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. The heat-resistant flame-retardant resin composition comprises the following raw materials based on 100 mass portions: 10 to 65 portions of halogen substituted maleimide heat-resistant flame-retardant resin, 30 to 55 portions of graft polymer of conjugated diolefine rubber grafted aryl ethylene unit and nitrile vinyl unit, and 5 to 35 portions of biopolymer of aryl ethylene unit and nitrile vinyl unit. The heat-resistant flame-retardant resin composition prepared by the preparation method of the halogen substituted maleimide heat-resistant flame-retardant resin composition has the advantages of flame retardance and high heat resistance, and is a heat-resistant flame-retardant material with good performance. The prepared heat-resistant flame-retardant resin can be widely used for heat-resistant flame-retardant modification of materials, such as ABS, PC ...

Method for polar copolymerization of isobutene by adopting microchannel reactor

The invention relates to a method for carrying out isobutene polar copolymerization by adopting a microchannel reactor, which comprises the following steps: S1, introducing isobutene and a maleic anhydride solution containing an initiator into a supergravity reactor, blending the isobutene and maleic anhydride, and carrying out pre-reaction; and S2, introducing the liquid-phase product obtained in the step S1 into the micro-channel reactor for continuous reaction. The invention provides a novel method for polar copolymerization of isobutene, isobutene and maleic anhydride are fully blended in an extremely short time through a supergravity reactor and a micro-channel reactor, and the efficiency of further polar copolymerization reaction is accelerated by controlling the time and temperature of polar reaction and the concentration distribution of reactants. The reaction time of further polar copolymerization is shortened, the polar reaction cost is reduced, and the generation rate of reactants ...

Heat resisting flame retardant resin composition and preparation thereof

The invention provides a halogen substituent maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. Based on 100 parts by weight, the resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant flame-retardant resin, 30-55 parts of a graft polymer of a conjugated diene rubber graft aryl ethylene unit and a nitrile vinyl unit and 5-35 parts of a binary copolymer of aryl ethylene monomers and nitrile vinyl monomers. The halogen substituent maleimide heat-resistant flame-retardant resin composition prepared by the method has the advantages of flame retardation and high heat resistance, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant properties, the ...

Ultrahigh molecular weight polyethylene catalyst component as well as preparation method and application thereof

The invention relates to an ultra-high molecular weight polyethylene catalyst component, which comprises magnesium chloride, a titanium compound and C8-C25 fatty acid ester, and is prepared by a method comprising the following steps: (1) mixing magnesium chloride with C6-C12 fatty alcohol and C8-C12 alkane to form a magnesium chloride solution; and (2) in the presence of C8-C25 fatty acid ester, mixing the magnesium chloride solution with a titanium compound, and precipitating to obtain catalyst solid particles containing magnesium chloride, the titanium compound and the C8-C25 fatty acid ester. The invention also relates to a preparation method of the ultra-high molecular weight polyethylene catalyst component and an ultra-high molecular weight polyethylene catalyst. The catalyst provided by the invention is especially suitable for slurry polymerization preparation of ultra-high molecular weight polyethylene, and can be continuously carried out in a stirred reactor or a loop reactor.

Heat resisting flame-retarded resin and synthesizing method thereof

The invention provides a heat-resistant flame-retardant resin emulsion and a synthetic method thereof. When the total weight of the resin emulsion is 100 parts on dry basis, ranges of the main structural units are as follows: 5-20 parts of a maleimide unit, 10-30 parts of a maleimide unit containing halogen substituents, 20-45 parts of an arylethene unit and 15-35 parts of a vinyl nitrile unit. The heat-resistant flame-retardant resin emulsion has the vitrification point of 135-170 DEG C and Vicat softening temperature of 135-190 DEG C. The synthetic method is characterized by controllable reaction, highly heat-resistant product and good flame retardance. The heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the like, or can be used alone for preparing high heat-resistant parts of automobiles and household appliances and the like.

Weather resistant maleimide heat resisting flame retardant resin composition containing halogen substituent and preparation thereof

The invention provides a weather-proof halogen substituted maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. The resin composition comprises the following: 10 to 65 portions of halogen substituted maleimide heat-resistant flame-retardant resin, 30 to 55 portions of graft polymer of acrylic ester elastomer grafted aryl ethylene monomer and nitrile vinyl monomer, and 5 to 35 portions of biopolymer of aryl ethylene monomer and nitrile vinyl monomer. The prepared weather-proof heat-resistant flame-retardant resin composition has the advantages of good appearance, good weather resistance, high heat resistance and flame retardance, and is a heat-resistant flame-retardant material with good performance. The prepared weather-proof heat-resistant flame-retardant resin can be widely used for heat-resistant flame-retardant modification of materials, such as ABS, PC, PBT and the like. As a material with excellent heat-resistant and flame-retardant performances ...

Polypropylene composite material and preparation method thereof

The invention provides a polypropylene composite material and a preparation method thereof. On one hand, the invention provides the polypropylene composite material. The polypropylene composite material is obtained by extruding a mixture of polypropylene and carbon nanofibers; the mixture of the polypropylene and the carbon nanofibers is prepared from the following components in percentage by mass: 90 to 99.95 percent of polypropylene and 0.05 to 10 percent of carbon nanofibers. According to the polypropylene composite material provided by the invention, the nano carbon fibers are added into the polypropylene, so that the tensile strength of the polypropylene composite material is ensured, the compatibility of a rubber phase and a resin phase in the polypropylene is improved, and the low-temperature toughness and oil resistance of the polypropylene composite material are improved; and the application of polypropylene in low-temperature environment and in the aspects of oil collection and ...

Surface modified nano silicon oxide

The invention relates to surface modified nano silicon oxide and a surface modifying method thereof. The surface modified nano silicon oxide is prepared by carrying out surface modification to nano SiO2 with a coupling agent and a radical scavenger in the presence of a solvent. The used radical scavenger is one or more of azobicyano compound, inorganic peroxide compound, organic peroxide compound, stable free radical, thiol, thiol ester, benzoquinone, phenol, aryl amine, dialkyl dithioxanthate and tetra-alkyl dithioxanthicamide compound; and the using amount of the radical scavenger accounts for 0.01 to 50 percent by weight of the nano SiO2. Oxygen radical and hydroxyl radical on the surface of the nano SiO2 are eliminated or reduced by using the radical scavenger so as to improve the prior art.

Halogen substituent-containing maleimide heat resisting flame retardant resin composition with improved glossiness and preparation thereof

The invention provides a halogen substituent maleimide heat-resistant flame-retardant resin composition and a preparation method thereof. Based on 100 parts by weight, the halogen substituent maleimide heat-resistant flame-retardant resin composition comprises 10-65 parts of halogen substituent maleimide heat-resistant resin, 30-55 parts of a graft polymer of conjugated diene rubber graft aryl ethylene monomers, nitrile vinyl monomers and/or copolymerizable acylic ester monomers, and 5-35 parts of a binary copolymer of aryl ethylene monomers and the nitrile vinyl monomers. The prepared heat-resistant flame-retardant resin composition has the advantages of nice appearance, flame retardation, good brightness and high heat resistance, and the resin composition is a heat-resistant flame-retardant material with excellent properties. The prepared heat-resistant flame-retardant resin can be widely used for modifying heat resistance and flame retardance of such materials as ABS, PC, PBT and the ...

Method for testing volatile organic compounds in synthetic resin raw materials

The invention provides a method for testing volatile organic compounds in synthetic resin raw materials, which comprises the following steps: S1, mixing synthetic resin particles with a solid-phase extraction trapping agent, sealing, and collecting the volatile organic compounds in the synthetic resin particles by the solid-phase extraction trapping agent; s2, performing low-temperature extraction on the solid-phase extraction trapping agent obtained in the step S1 by adopting an extraction solvent, and performing low-temperature centrifugation after the extraction is finished to obtain supernatant liquid; and S3, analyzing the supernatant by adopting a gas phase-high resolution mass spectrum, and analyzing an obtained mass spectrum to obtain all volatile organic compound components and content information. According to the method provided by the invention, the comprehensiveness and accuracy of detection can be improved, the operation can be simplified, and the efficiency can be improved ...

Method for preparing maleimide heat-proof resin emulsion

The present invention relates to the preparation method for a maleimide heat-resistant resin emulsion. Maleimide monomer, aryl vinyl monomer, nitrile group - ethylene monomer, oil-soluble thermal decomposition initiator and other agents are added into a mixing trough, and are mixed and stirred to form homogeneous monomer mixed solution (a); Then emulsifier and other agents are added into a reactor, and is stirred; then (a) is added to the reactor for emulsification so as to generate monomer emulsion (b); then desalination water and (b) are added to the reactor for polymerization reaction at the temperature of 60 DEG C to 90 DEG C; after the process, heat-resistant resin emulsion (c) is obtained. The anti-heat flame-retardant resin emulsion can be widely used in the improvement of anti-heat and flame-retardant effectiveness of ABS, PC, PBT and other materials. When used alone, the anti-heat flame-retardant resin emulsion can also be used in the anti-heat and flame-retardant components of ...

Water-absorption expanding rubber combination containing montmorillonite absorbent material and preparation method thereof

The present invention relates to a water absorption swelling rubber combination with a montmorillonite water-absorbing material and the preparation thereof, wherein the montmorillonite water-absorbing material is formed by intercalation-copolymerization with acrylic acid and acrylamide in the sheet layer of montmorillonite under the action of the initiator, and the water absorption swelling rubber is made of rubber group, montmorillonite water-absorbing material, activator, anti-aging agent, reinforcing filler, compatibilizer, water-absorbing accelerant, etc. by milling of the blender mill and then vulcanizing. The water absorption swelling rubber is easy to prepare, has an excellent water-absorption and a high rate, and can be used to prepare the waterproof and water-stop materials, building materials, etc.

Method for synthesizing halogen substituent maleimide heat-proof flame-proof resin emulsion

The present invention is a preparation method for a halogen substitute maleimide Imide-like anti-heat resin emulsion: a reactor is added with emulsifier, some aryl vinyl monomer, cyano-ethylene monomer, and oil-soluble thermal decomposition initiator and other agents for emulsification so as to generate primary emulsion (a); the remained maleimide monomer, aryl vinyl monomer, cyano-ethylene monomer, and oil-soluble thermal decomposition initiator and other agents are added into a mixing trough so as to generate homogeneous monomer mixed liquid(b); the emulsifier and (b) are added into the emulsifier and are stirred for emulsion so as to generate monomer emulsion (c); the monomer emulsion (c) is added into the reactor to mix with (a) for polymerization reaction which generates heat-resistant polymer resin emulsion (d). The anti-heat resin emulsion obtained by the present invention has the advantages of good appearance, even composition and structure, high heat-resistant effectiveness, high ...

Method for preparing crosslinking butadiene-acrylonitrile copolymer rubber

The present invention relates to a method for preparing cross-linking type butadiene-acrylonitrile copolymerizing rubber, which is characterized in that a butadiene monomer and an acrylonitrile monomer are mixed; 0.05 to 3.0 portions of cross-linking agent based on the mass portion of the total monomers is added into the mixture by two times or more than two times; 0.8 to 5.0 portions of emulsifying agents of alkyl sulfates of C8 to C16 or alkylbenzene sulfonates, a molecular weight regulator, a persulfate initiator, an activating agent, desalted water and so on are added into the mixture to finish polyreaction at a temperature of between 10 and 50 DEG C; and the polyreaction is finished when the monomer conversion is between 90 and 97 percent. The method for preparing the cross-linking type butadiene-acrylonitrile copolymerizing rubber is adopted to obtain butadiene-acrylonitrile copolymerizing rubber with the structural gel content of between 30 and 90 percent. The processability of the ...

Production of maleimide resin emulsion