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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 30. Отображено 30.
06-03-2013 дата публикации

Preparation method of antistatic powdery neoprene

Номер: CN102952302A
Автор: Liang Tao, Wei Xuling, Liu Baoyong, Cao Fengxia, Gong Guangbi, Zheng Jucheng, Gui Qiang, Xu Dianhong, Zhao Hongguo
Принадлежит:

The invention relates to antistatic powdery neoprene prepared with a direct condensation pulverization technology. The method comprises the steps that: (1) starch modification is carried out, wherein water and starch are added into a reaction flask, stirring and heating are carried out, alkali solution and dibasic acid are dropped alternately, and a certain pH value is regulated after the reaction is stopped, such that modified starch is prepared; (2) a grafted latex is prepared, wherein neoprene latex, water, the modified starch, an antistatic agent, and a molecular weight adjusting agent are added into a polymerization vessel; stirring and heating are carried out; an initiator and an activator are added; and when a graft polymerization conversion rate reaches a certain value, a terminating agent is added, such that the grafted latex is prepared; and (3) condensation and powder-formation are carried out, wherein the grafted latex, a separating agent, a flocculating agent, and a coagulating ...

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Номер записи: 1
25-12-2013 дата публикации

Natural pigment prepared by using fruit residues and applications thereof

Номер: CN103468019A
Автор: Yuan Ke, Huang Yasi, Jiang Dongqing, Xu Dianhong, Jia Shanshan, Lin Yin
Принадлежит:

The invention discloses a natural pigment prepared by using fruit residues and applications thereof, belonging to the technical field of food additives. The natural pigment is characterized by uniformly mixing the following materials in percentage by weight: 40-70% of mulberry fruit residue extracted and purified matters, 30-60% of waxberry fruit residue extracted and purified matters, and 0.0005-0.0008% of selenium yeast, so that the natural pigment is obtained. The natural pigment prepared by using fruit residues has relatively strong oxidation resistance, fatigue resistance and blood sugar reducing effect; the appearance of the natural pigment prepared by using the method is purple, and the total anthocyanin content of the natural pigment is as high as 30-48%; the preparation process is environment-friendly and safe; the natural pigment prepared by using mulberry fruit residues and waxberry fruit residue wastes is high in functional component content and obvious in effect, can be used ...

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Номер записи: 2
06-03-2013 дата публикации

Preparation method of oil resistant enhanced styrene-butadiene rubber polymer particles

Номер: CN102952301A
Автор: Wei Xuling, Liang Tao, Liu Baoyong, Fu Hanqi, Wei Yuli, Gong Guangbi, Zheng Jucheng, Xu Dianhong, Zhao Hongguo, Wang Zhenqin, Ai Chunjin, Zhu Jing
Принадлежит:

The invention relates to a preparation method of oil resistant enhanced styrene-butadiene rubber polymer particles. The method comprises the steps that: (1) starch gelatinization modification is carried out, wherein starch and water are added into a reactor; the mixture is stirred such that starch paste is obtained; and a phenolic solution is added, such that modified starch is obtained; (2) enhanced copolymerized styrene-butadiene latex is prepared, wherein water, styrene, an emulsifying agent, and a molecular weight adjusting agent are added into a polymerization vessel; nitrogen is used for replacing; butadiene, isoprene, and the modified starch are added, and a copolymerization reaction is carried out; (3) latex grafting is carried out, wherein water, the enhanced copolymerized styrene-butadiene latex are sequentially added into the polymerization vessel; and polyvinyl chloride is added for carrying out grafting polymerization; and (4) condensation and powder-formation are carried out ...

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Номер записи: 3
19-06-2013 дата публикации

Metallocene polyethylene resin composition for greenhouse film and preparation method thereof

Номер: CN103160013A
Автор: Xu Dianhong, Gong Guangbi, Li Jing, Mu Xuemei, Kang Anfu, Chen Hong, Bai Jingbing, Liu Junbao, Zhu Jing, Wei Xuling
Принадлежит:

The invention provides a metallocene polyethylene resin composition for greenhouse film. The composition comprises, calculated by the weight of mLLDPE being 100%, 100% of the mLLDPE, 0.07%-0.2% of a compound crosslinking agent and 10%-25% of a ULDPE graft. The ULDPE graft is a graft copolymer prepared by grafting styrene (St) monomers onto a backbone of the ULDPE under the effect of an initiator. The composition does not require any mixing and can be blown into wide greenhouse film with high tear strength and excellent weather resistance. The greenhouse film has a small amount of ''fish-eyes'' on the surface, can be used on the greenhouse for 900 consecutive days without natural breakage and can resist the damage of 7-8 grade sandstorms.

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Номер записи: 4
27-03-2013 дата публикации

Polyethylene tube material resin composition

Номер: CN102993536A
Автор: Xu Dianhong, Wang Zhenhua, Zhao Yan, Liu Junbao, Li Yao, Li Huiwen, Zhai Yunfang, Wang Yuexia, Wei Xuling, Liang Tianzhen
Принадлежит:

The invention aims at providing a polyethylene tube material resin composition. According to the invention, HDPE resin is adopted as a base material; EVA weather-resistant master batch and organic peroxide micro-crosslinking modification is carried out, such that the tube material resin composition has an excellent ESCR performance (higher than 2500h). The invention further provides a preparation method of the composition. With the weight of high-density polyethylene (HDPE) considered as 100%, the resin composition comprises: 100% of HDPE, 0.05-0.2% of a complex crosslinking agent, and 10-25% of the EVA weather-resistant master batch. The EVA weather-resistant master batch is a blend composed of a polymer EVA, a composite light stabilizer, an EVA-g-MAH graft (a graft of EVA and maleic anhydride), and a dispersing agent. A tube material prepared by using the composition has excellent performances, and can be widely applied in fields such as water supply, agricultural irrigation, fuel gas ...

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Номер записи: 5
18-12-2013 дата публикации

Wind power generation set vibration state monitoring and fault diagnosis system based on WiMAX system

Номер: CN103453984A
Автор: Shen Runjie, Wen Changhui, He Bin, Li Gang, Tang Haifeng, Cai Mi, Chen Pengjie, Tang Limin, Xu Dianhong, Lv Bin, Hu Heming
Принадлежит:

The invention relates to a wind power generation set vibration state monitoring and fault diagnosis system based on a WiMAX system. The wind power generation set vibration state monitoring and fault diagnosis system based on the WiMAX system comprises a sensor and a data collecting terminal, the sensor is arranged on a wind power generation set, and the data collecting terminal has the real-time online data collection and analyzing function. The data collecting terminal comprises a display screen, a tower bottom touch screen, a WiMAX communication device, a WiMAX base station, a central control room subsystem and a remote client terminal, the tower bottom touch screen is connected with the data collecting terminal and is a copied screen of a terminal screen, the WiMAX communication device is connected with the data collecting terminal and is connected with the central control room subsystem through the WiMAX base station, and the central control room subsystem is connected with the remote ...

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Номер записи: 6
19-06-2013 дата публикации

Preparation method for flame-retardant powdered rubber

Номер: CN103159867A
Автор: Ai Chunjin, Zhan Desheng, Gao Yangguang, Zhu Jing, Zhang Zhiqiang, Liu Zongwei, Gong Guangbi, Zhao Xutao, Zheng Jucheng, Liang Tao, Li Jing, Li Shuyi, Zhang Xiaoqi, Li Changwei, He Ying, Wei Xuling, Xu Dianhong, Kang Anfu, Chen Jiangang, Li Bo
Принадлежит:

Directed at the phenomenon that improper disposal in storage and transportation of powdered rubber easily causes spontaneous combustion, the invention provides a preparation method for flame-retardant powdered rubber. According to the method, carbon tetrachloride and the like are used as halogen donors, unsaturated fatty acid anhydride and the like are used as halogen acceptors, and the halogen donors and the halogen acceptors are subjected to an addition reaction and to saponification by an aqueous sodium hydroxide solution so as to prepare an isolating agent with a flame retardation function; then, the isolating agent is used for preparation of powdered rubber to produce a powdered rubber product with flame resistance; safety of the product in the processes of storage and transportation can be guaranteed.

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Номер записи: 7
13-02-2013 дата публикации

Weathering resistance polyethylene agriculture film resin composition and preparation method thereof

Номер: CN102924797A
Автор: Xu Dianhong, Cao Fengxia, He Liancheng, Wang Yuexia, Wang Lingling, Guo Jun, Cong Rixin, Zhu Jing, Wei Xuling, Liang Tianzhen
Принадлежит:

The present invention provides a linear low density polyethylene agriculture film resin composition and a preparation method thereof. The resin composition comprises, by weight of LLDPE, (1) 100% of LLDPE, (2) 0.05-0.3% of a compound cross-linking aid, and (3) 10-25% of POE weathering resistance master batch. With the composition, a broad width shed plastic film with a width of more than or equal to 8 m and a thickness of more than or equal to 80 mum can be blown out without any blending, fisheyes on the surface of the shed plastic film are less, and natural damage can not occur after the shed plastic film continuously covers a greenhouse for more than 36 months. The present invention further provides a preparation method for the resin composition.

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Номер записи: 8
13-02-2013 дата публикации

Polyethylene resin composition for weathering resistance agriculture film, and preparation method thereof

Номер: CN102924800A
Автор: Xu Dianhong, Cao Fengxia, He Liancheng, Zhu Jing, Bai Jingbing, Chen Hong, Zhai Yunfang, Wang Yuexia, Wei Xuling, Liang Tianzhen
Принадлежит:

The present invention provides a linear low density polyethylene (LLDPE) resin composition for a weathering resistance agriculture film and a preparation method thereof. The resin composition comprises, by weight of LLDPE, (1) 100% of LLDPE, (2) 0.05-0.3% of a compound cross-linking aid, and (3) 10-30% of ultra-low density polyethylene (ULDPE) weathering resistance master batch. With the composition, a broad width shed plastic film (a width of more than or equal to 8 m and a thickness of more than or equal to 80 mum) can be blown out without any blending, fisheyes on the surface of the shed plastic film are less, weathering resistance is excellent, and natural damage can not occur after the shed plastic film continuously covers a greenhouse for more than 40 months. The present invention further provides a preparation method for the resin composition, wherein the preparation method has advantages of short procedure, simple process, low development cost, stable product quality and the like ...

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Номер записи: 9
17-07-2013 дата публикации

Oil-extended powdery rubber preparation method

Номер: CN103204959A
Автор: Ai Chunjin, Yuan Li, Zhao Hongguo, Wang Feng, Zheng Hongbing, Fu Yan, Gong Guangbi, Zhao Xutao, Zheng Jucheng, Liang Tao, Li Jing, Li Shuyi, Wang Tong, Yang Haijiang, Yang Jianting, Zhang Songxian, Xu Dianhong, Wei Xuling, Chen Jiangang, Shao Wei
Принадлежит:

An oil-extended powdery rubber preparation method is characterized in that an isolation agent containing a polymerizable function group is covered on the external surfaces of oil-extended rubber particles, and a chemical reaction among molecules of the isolation agent and between the isolation agent and the rubber molecule is carried out under the action of an initiator to generate a polymer or a crosslink bond; the polymerization in the molecules of the isolation agent generates a compact isolation agent polymer layer on the surfaces of the rubber particles, and the isolation agent polymer layer can greatly alleviate the outward penetration of filled oil; and the polymerization between the isolation agent molecule and the rubber molecule makes the isolation agent layer be firmly wrapped on the surfaces of the rubber particles, and cooperates with calcium ions of the external layer of the isolation agent to realize a good isolation effect. The method can be used for oil-in-rubber condensation ...

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Номер записи: 10
19-06-2013 дата публикации

Preparation method of reinforced powdered rubber

Номер: CN103159866A
Автор: Ai Chunjin, Kang Anfu, Gong Guangbi, Fu Hanqi, Zeng Lingzhi, Zheng Jucheng, Zhu Jing, Zhao Xutao, Li Shuyi, Gao Yan, Liang Tao, Li Jing, Ren Zhong, Chen Jiangang, Gao Yangguang, Cong Rixin, He Ying, Hui Jin, Xu Dianhong, Wei Xuling
Принадлежит:

A preparation method of a reinforced rubber powder employs chemical reactions to bond organic siloxane to separant molecules, thus preparing a powdered rubber product with high tensile strength. The method comprises the specific steps of: adding 1-200 parts of organo-siloxane monomer containing unsaturated bonds, 1-35 parts of a molecular weight regulator and 0.1-0.5 part of an initiator into 100 weight parts of unsaturated fatty acid anhydride; conducting polymerization at 5-120 DEG C for 0.5-6.0 h; adding 80-120 parts of basic aqueous solution with mass concentration of 5%w-15%w into the generated mixture for saponification, thereby preparing a separant for standby; calculated by dry weight of the rubber, adding 1-50 parts of the reinforced separant obtained in the above step and 0-100 parts of a coagulant into 100 parts of latex; condensing the mixture into powder at -20-95 DEG C under stirring condition; and dehydrating to obtain the reinforced powdered rubber.

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Номер записи: 11
30-01-2013 дата публикации

Polystyrene resin composition and preparation method thereof

Номер: CN102898734A
Автор: Xu Dianhong, Li Shuyi, Zheng Jucheng, Liu Chunfang, Li Yao, Zhu Jing, Cong Rixin, Chen Jiangang, Ai Chunjin, Wei Xuling, He Liancheng
Принадлежит:

The present invention provides a polystyrene resin composition, which mainly comprises, by weight: 1) 100% of polystyrene; 2) 10-30% of carboxylic styrene butadiene latex modified powder styrene-butadiene rubber; 3) 0.5-1.5% of a peroxide; 4) 0.2-0.5% of a co-cross-linking agent; and 5) 5-10% of a polar monomer grafted polystyrene, wherein the peroxide is a compound comprising an organic peroxide A having a half life of less than 170 DEG C/1 min and an organic peroxide B having a half life of more than 200 DEG C/1 min according to a ratio of 1:5-1:30, and the co-cross-linking agent is one selected from N,N'-p-phenyl dimaleimide (PDM or HVA-2), zinc diacrylate (ZDA), zinc methacrylate, zinc dimethacrylate (ZDMA), trihydroxymethylpropyl trimethylacrylate (TMPTA) or zinc oxide (ZnO). According to the present invention, the composition of the present invention has an excellent comprehensive mechanical property; toughness of the composition is improved by more than 10 times compared with the ...

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Номер записи: 12
17-10-2012 дата публикации

Polypropylene resin composition and preparation method thereof

Номер: CN102731902A
Автор: Xu Dianhong, Han Yan, Qiu Guoxian, Li Jing, Li Jinshan, Xu Guanghua, Cong Rixin, Chen Jiangang, Zhu Jing, Zhai Yunfang, Wei Xuling, Gao Yangguang
Принадлежит:

The invention discloses a polypropylene resin composition and a preparation method thereof. The polypropylene resin composition is a nano-silica/poly(conjugated dialkene) composite emulsion. Based on emulsion dry basis, the nano-silica/poly(conjugated dialkene) composite emulsion comprises 0.1 to 5 parts of surface functionalization-modified nano-silica. The nano-silica/poly(conjugated dialkene) composite emulsion has granularity of 50 to 80nm, number-average molecular weight of 100000 to 120000, and molecular weight distribution of 2 to 3. The invention also discloses the preparation method of the nano-silica/poly(conjugated dialkene) composite emulsion.

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Номер записи: 13
13-02-2013 дата публикации

Polyethylene tubing resin composition

Номер: CN102924775A
Автор: Xu Dianhong, He Liancheng, Cong Rixin, Zhu Jing, Bai Jingbing, Chen Hong, Zhai Yunfang, Wang Yuexia, Wei Xuling, Liang Tianzhen
Принадлежит:

The invention aims to provide a polyethylene tubing resin composition. HDPE (high-density polyethylene) is treated as a base material and is modified through the micro-crosslinking of weather-resistant POE master batches and an organic peroxide, so the tubing resin composition has an excellent ESCR (environmental stress cracking resistance) (for above 3000h). The invention further provides a preparation method of the composition. The resin composition comprises 100wt% of the HDPE, 0.05-0.2wt% of a complex crosslinking assistant and 10-30wt% of the weather-resistant POE master batches, wherein the weather-resistant POE master batches are a mixture composed of a polymer POE, a composite light stabilizing agent, a POE-g-VA graft (POE and vinyl acetate graft) and a dispersant.

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Номер записи: 14
17-04-2013 дата публикации

High-strength polypropylene composition and preparation method thereof

Номер: CN103044765A
Автор: Xu Dianhong, Gong Guangbi, Han Yan, Liu Junbao, Yang Ruxin, He Ying, Zhai Yunfang, Wang Yuexia, Wei Xuling, Liang Tianzhen
Принадлежит:

The invention discloses a high-strength polypropylene (PP) composition which comprises the following components based on the mass of the PP being 100%: 100 percent of PP matrix, 1.0-3.0 percent of crosslinking agent comprising 0.95-2.5 percent of organic peroxide/sulphur mixture and 0.05-0.5 percent of assistant crosslinking agent which are in a weight ratio of 1:5-1:10, 10-30 percent of carboxylic butadiene-styrene latex modified powder butadiene styrene rubber and 2-5 percent of polar monomer graft PP, wherein 1.0-3.0 percent of crosslinking agent comprises 0.95-2.5 percent of organic peroxide/sulphur mixture and 0.05-0.5 percent of assistant crosslinking agent and the mass ratio of organic peroxide to sulphur is 1:5-1:10. A specific crosslinking system is selected and is matched with other components, so that the degradation of PP in a mixing system can be effectively controlled, the properly crosslinked powder rubber is maximally, stably and uniformly dispersed in PP in a fine particle ...

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Номер записи: 15
18-12-2013 дата публикации

Emulsion polymerization method for preparing tractable butadiene styrene rubber

Номер: CN103450396A
Автор: Zhang Yuanshou, Zhang Yin, Zhong Qilin, Ji Jiangdong, Zhao Hongguo, Zheng Hongbing, Li Jing, Wang Zhenqin, Zhai Yunfang, Xu Dianhong, Dong Wanzhuo, Kang Anfu
Принадлежит:

The invention relates to an emulsion polymerization method for preparing a tractable butadiene styrene rubber. The polymerization method comprises at least the following steps: adding part of styrene (an oil phase) and part of an emulsifier (an aqueous phase), a regulator and an initiator into a polymerization kettle; adding butadiene; carrying out emulsion polymerization with stirring; and when conversion rate of the polymerization reaction in the middle stage reaches 30-60%, refilling the emulsifier, the crosslinking agent, styrene and the regulator by one or more times. The styrene butadiene rubber prepared by the method provided by the invention has high micro gel content and low gel content; coupled with the electron cloud effect of the pi bonds in the benzene ring of the molecular chain, a three-dimensional net shape structure is easy to form in the processing process; and the rubber product has good physical and mechanical properties, increased Mooney viscosity, and correspondingly ...

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Номер записи: 16
27-03-2013 дата публикации

Polyethylene resin composition used for tube materials

Номер: CN102993535A
Автор: Xu Dianhong, Wang Zhenhua, Qiu Guoxian, Liu Junbao, Yang Ruxin, He Ying, Zhai Yunfang, Wang Yuexia, Wei Xuling, Liang Tianzhen
Принадлежит:

The invention aims at providing a polyethylene tube material resin composition. According to the invention, HDPE resin is adopted as a base material; and mLLDPE weather-resistant masterbatch and organic peroxide micro-crosslinking modification is carried out, such that the obtained tube material resin composition is provided with excellent ESCR performance (greater than 2500h). The invention further provides a preparation method of the composition. Calculated according to the weight of high density polyethylene (HDPE) as 100%, the resin composition comprises: 100% of HDPE, 0.05-0.2% of a complex crosslinking auxiliary agent, and 10-30% of mLLDPE weather-resistant masterbatch. The mLLDPE weather-resistant masterbatch is a blend composed of polymer mLLDPE, a composite light stabilizer, an mLLDPE-g-MAH graft (a graft of mLLDPE and maleic anhydride), and a dispersing agent. A tube material prepared by using the composition has excellent performances, and can be widely applied in fields such ...

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Номер записи: 17
10-10-2012 дата публикации

Compound dendrobium candidum buccal tablet and preparation method of compound dendrobium candidum buccal tablet

Номер: CN102716367A
Автор: Yuan Ke, Qian Yijiang, Xu Dianhong, Jiang Dongqing, Liu Hualiang
Принадлежит:

The invention relates to a compound dendrobium candidum buccal tablet and a preparation method of the compound dendrobium candidum buccal tablet and aims at reaching the effects that the absorption and utilization efficiency and speed of the dendrobium candidum can be respectively improved and accelerated through the provided buccal tablet, and the provided preparation method has the characteristics that the process is simple, and the operation is convenient. The compound dendrobium candidum buccal tablet and the preparation method have the technical scheme that the compound dendrobium candidum buccal tablet comprises compound dendrobium candidum extract extractum, mannitol, dextrin and magnesium stearate which are mixed according to the weight proportion, and the compound dendrobium candidum extract extractum comprises dendrobium candidum, American ginseng, Chinese wolfberry fruit, rhizoma phragmitis, okra, mulberry and astragalus extracts which are determined according to the weight proportion ...

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Номер записи: 18
19-06-2013 дата публикации

Preparation method for high performance butadiene-styrene-isoprene powder polymer

Номер: CN103160056A
Автор: Wei Xuling, Liang Tao, Liu Baoyong, Fu Hanqi, Zheng Jucheng, Gong Guangbi, Wei Yuli, Xu Dianhong, Zhu Jing, Ai Chunjin
Принадлежит:

The invention adopts a direct coagulation method for preparation of a high performance butadiene-styrene-isoprene powder polymer. The method comprises the following steps: dispersion of a carbon nanotube: a step of adding the carbon nanotube and water into a high-speed disperser and carrying out stirring to allow the carbon nanotube to be uniformly dispersed; preparation of graft latex: a step of successively adding water, styrene-butadiene latex, an emulsifier and a molecular weight regulator into a polymerization kettle, carrying out nitrogen displacement, adding isoprene, carrying out stirring and heating, adding an initiator and carrying out polymerization to prepare the graft latex; and coagulation for formation of powder: a step of successively adding the graft latex, water and the carbon nanotube into a coagulation kettle, carrying out stirring and heating, adding a release agent, a flocculating agent and a coagulating agent and carrying out curing, washing, dehydration and drying ...

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Номер записи: 19
18-12-2013 дата публикации

Process for preparing carboxylic acrylonitrile butadiene rubber through emulsion polymerization method

Номер: CN103450400A
Автор: Zhang Yuanshou, Zhang Yin, Jiang Ping, Li Jing, Gong Guangbi, Zhong Qilin, Zhai Yunfang, Wu Yu, Zheng Jucheng, Xu Dianhong, Wang Feng, Ji Jiangdong, Hu Yulin, Chen Genping, Kang Anfu
Принадлежит:

The invention relates to a process for preparing carboxylic acrylonitrile butadiene rubber through an emulsion polymerization method. An emulsifier and an adjusting agent are added in batch, and a crosslinking agent and a pre-crosslinking agent titanate are added at different times, so the carboxylic acrylonitrile butadiene rubber has the characteristics of high content of a microgel, low content of a gel, controllable combined acid index, easy formation of a stereo netted structure in the processing process, uniform distribution of carboxylic groups on a molecular chain, uniform structure formed in the vulcanizing and product processing processes, slight stress relax phenomenon, and good dimension stability. The rubber obtained through adopting the method has good physical and mechanical properties and an improved Mooney viscosity, and has corresponding better compression set, Shore A hardness, tearing strength, tensile strength, elongation at break and 100% stress at definite elongation ...

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Номер записи: 20
13-02-2013 дата публикации

Polyethylene resin composition for pipes

Номер: CN102924774A
Автор: Xu Dianhong, Zhao Yan, Cao Fengxia, Li Huiwen, Guo Jun, Li Yao, Zhai Yunfang, Wang Yuexia, Wei Xuling, Liang Tianzhen
Принадлежит:

A purpose of the present invention is to provide a polyethylene resin composition for pipes, wherein a HDPE resin is adopted as a base material, and micro cross-linking modification of ultra-low density polyethylene (ULDPE) weathering resistance master batch and an organic peroxide is adopted to achieve the purpose. The resin composition has an excellent ESCR performance (more than 3000 hours). The resin composition comprises, by weight of high density polyethylene (HDPE), 100% of HDPE 100, 0.05-0.2% of a compound cross-linking aid, and 10-35% of ULDPE weathering resistance master batch, wherein the ULDPE weathering resistance master batch is a blend comprising ULDPE, a composite light stabilizer, a ULDPE-g-VA graft and a dispersing agent, and the ULDPE-g-VA graft is a graft of ULDPE and vinyl acetate. The present invention further provides a preparation method for the resin composition.

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Номер записи: 21
06-03-2013 дата публикации

Polyethylene agricultural film resin composition and its preparation method

Номер: CN102952319A
Автор: Xu Dianhong, Cao Fengxia, Zhu Jing, Wang Lingling, Guo Jun, Chen Hong, Bai Jingbing, He Liancheng, Wei Xuling, Ai Chunjin
Принадлежит:

The invention provides a polyethylene agricultural film resin composition and its preparation method. The composition comprises 100wt% of LLDPE (linear low-density polyethylene), 0.05-0.3wt% of a complex formulation crosslinking assistant and 10-35wt% of an EVA (ethylene-vinyl acetate) grafter, wherein the EVA grafter is a graft copolymer obtained through grafting a styrene monomer to the main chain of EVA under the action of an initiator. Broad-width shed films produced through treating the composition as a raw material have a high tear strength and an excellent weatherability, can defend 7-8 grade dust storms, and cannot be naturally damaged after the continuous shed buckling for above 700 days.

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Номер записи: 22
29-01-2014 дата публикации

Preparation method of high-performance butadiene-styrene liquid rubber

Номер: CN103539912A
Автор: Wei Xuling, Liang Tao, Zheng Jucheng, Gong Guangbi, Shi Rong, Wei Yuli, Fu Hanqi, Liu Baoyong, Li Jing, Chen Jiangang, Bai Jingbing, Cong Rixin, Xu Dianhong, Ma Penggao, Zhu Jing, Ai Chunjin
Принадлежит:

The invention relates to a preparation method of high-performance butadiene-styrene liquid rubber. The preparation method comprises the following steps of adding water and a thickening agent to a reaction flask; agitating until the thickening agent is dissolved completely; adding ethanol to another reaction flask; heating to reach 80 to 110 DEG C; adding terpene resin; agitating until terpene resin is dissolved completely; sequentially adding water, styrene-butadiene latex, an emulsifying agent and a molecular weight regulator to a polymerizing pot; replacing with nitrogen; adding terpene resin; agitating and heating; adding an initiator while the temperature of the polymerizing pot reaches 30 to 60 DEG C; reacting for 5 to 8 hours under the polymerization temperature of 30 to 60 DEG C; adding a termination agent to obtain graft latex; adding the graft latex to a condensation kettle; adding water, an anti-aging agent and trialkyl amine chloride; agitating and heating; adding the dissolved ...

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Номер записи: 23
19-06-2013 дата публикации

Polyethylene resin composition for greenhouse film and preparation method thereof

Номер: CN103160015A
Автор: Xu Dianhong, Gong Guangbi, Li Shuyi, Mu Xuemei, Kang Anfu, Chen Hong, Bai Jingbing, He Liancheng, Wei Xuling, Ai Chunjin
Принадлежит:

The invention provides a linear low-density polyethylene resin composition for a greenhouse film and a preparation method thereof. The composition comprises, on the basis of 100 wt% of LLDPE, 100% of LLDPE, 0.05 to 0.3% of a complex cross-linking agent and 5 to 20% of a ULDPE graft, wherein the ULDPE graft is a graft copolymer prepared by grafting a styrene (St) monomer to a ULDPE main chain under action of an initiator. A broad-width greenhouse film (with a thickness of no less than 80 mu m and a width of no less than 8 m) produced with the composition as a raw material has high tearing strength and excellent weatherability, can withstand 7-grade to 8-grade sandstorms, has no natural damage even when a greenhouse shed has been constructed from the greenhouse film for more than 900 days and is especially applicable to laying in western regions with frequent sandstorms and long sunshine duration.

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Номер записи: 24
06-03-2013 дата публикации

Preparation method of environmentally-friendly powdery chloroprene rubber having characteristics of quick dissolving and high bonding

Номер: CN102952303A
Автор: Liang Tao, Wei Xuling, Liu Baoyong, Cong Rixin, Wu Jiang, Wei Yuli, Gong Guangbi, Zheng Jucheng, Dai Zuhong, Xu Dianhong, Ai Chunjin, Zhu Jing
Принадлежит:

A preparation method of an environmentally-friendly powdery chloroprene rubber having the characteristics of quick dissolving and high bonding comprises the following steps: 1, adding water and starch into a reaction bottle, reacting at 25-40DEG C, alternatively adding an alkaline solution and a diacid in a dropwise manner, adjusting the pH value to 7-8 when the pH value slowly changes, and carrying out heat insulation to prepare modified starch; 2, adding a polychloroprene latex, water, the modified starch, isoprene, a molecular weight adjusting agent, an initiator and an activator into a polymerization kettle, carrying out a graft polymerization reaction at 25-50DEG C, and adding a terminator when the polymerization conversion rate is 65-75% to prepare a grafted latex; and 3, adding the grafted latex into a condensation kettle, adding an isolation agent, a flocculating agent and a condensation agent, stirring, heating, slaking, dehydrating, and drying to obtain the environmentally-friendly ...

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Номер записи: 25
19-06-2013 дата публикации

Preparation method for reinforcing release agent

Номер: CN103159892A
Автор: Ai Chunjin, Yu Kui, Zheng Jucheng, Gong Guangbi, Li Shuyi, Zhu Jing, Liang Tao, Kang Anfu, Li Jing, Ren Zhong, Liu Chaowei, Gao Yangguang, Xu Dianhong, Wei Xuling, Zhao Xutao, Cong Rixin, Dong Wanzhuo, Li Zixia, Wu Yu, Zheng Hongbing
Принадлежит:

The invention provides a preparation method for a reinforcing release agent. Organo-silicone is bonded onto molecules of the release agent through a chemical reaction so as to prepare a powdered rubber product with high tensile strength. Specifically speaking, the preparation method comprises the following steps: on the basis of 100 parts by mass of unsaturated fatty acid anhydride, adding 20 to 200 parts of an organo-silicone monomer containing an unsaturated bond into the 100 parts of unsaturated fatty acid anhydride and carrying out full stirring to realize uniform mixing; adding 5 to 35 parts of a molecular weight modifier, then adding 0.1 to 0.5 part of an initiator and carrying out polymerization under stirring at a temperature of 5 to 120 DEG C for 1 to 3 h; adding 80 to 120 parts of aqueous alkali into a produced mixture to allow the produced mixture to undergo saponification so as to prepare the reinforcing release agent. Powdered rubber prepared from the reinforcing release agent ...

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Номер записи: 26
19-06-2013 дата публикации

Preparation method of flame retardant type separant

Номер: CN103159611A
Автор: Ai Chunjin, Zhao Xutao, Zheng Jucheng, Gong Guangbi, Xu Dianhong, Zhu Jing, Wei Xuling, Zhao Hongguo, Zhao Zhichao, Liang Tao, Li Jing, Li Shuyi, Liu Chaowei, Gao Yangguang, He Ying, Li Bo, Kang Anfu
Принадлежит:

Aiming at spontaneous combustion caused by improper dispose in storage and transportation of powder rubber, the invention provides a preparation method of a flame retardant type separant. The method is as below: conducting an addition reaction on a halogen donor of carbon tetrachloride and a halogen acceptor of unsaturated fatty acid, and saponifying by a sodium hydroxide aqueous solution, so as to prepare the separant with flame retardant function. The flame retardant type separant can be used in condensation process of rubber latex and preparation of powder rubber product with flame retardance, and can guarantee safety of product storage and transportation process.

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Номер записи: 27
29-01-2014 дата публикации

Preparation method of high-tenacity bonding type powdered neoprene

Номер: CN103539948A
Автор: Wei Xuling, Liang Tao, Fu Hanqi, Wei Yuli, Liu Baoyong, Zheng Jucheng, Gong Guangbi, Li Jing, Cong Rixin, Xu Dianhong, Ai Chunjin, Zhu Jing
Принадлежит:

The invention relates to a preparation method of thick and high-tenacity bonding type powdered neoprene. The preparation method comprises the following steps of adding neoprene, a thickening agent, water and a molecular weight regulator to a polymerizing pot in sequence; replacing with nitrogen; agitating and heating; adding an initiating agent and an activating agent while the temperature of the polymerizing pot reaches 20 to 35 DEG C; performing graft polymerization reaction at 30 to 50 DEG C; adding a termination agent after the polymerization conversion rate reaches 65 to 75% in order to obtain graft neoprene latex; adding the graft neoprene latex to a condensation kettle; adding a parting agent and a coagulant under the coagulation temperature of 10 to 30 DEG C; uniformly agitating and mixing; heating to reach 20 to 60 DEG C for ageing for 4 to 6 hours; and then separating, dehydrating and drying to obtain thick and high-tenacity bonding type powdered neoprene. The prepared powdered ...

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Номер записи: 28
13-02-2013 дата публикации

Metallocene polyethylene resin composition for weathering resistance agriculture film, and preparation method thereof

Номер: CN102924799A
Автор: Xu Dianhong, Li Shuyi, Li Huiwen, Li Yao, Yang Ruxin, He Ying, Wang Yuexia, Zhu Jing, Wei Xuling, Ai Chunjin
Принадлежит:

The present invention provides a metallocene polyethylene (mLLDPE) resin composition for a weathering resistance agriculture film and a preparation method thereof. The resin composition comprises, by weight of mLLDPE, (1) 100% of mLLDPE, (2) 0.07-0.2% of a compound cross-linking aid, and (3) 10-35% of ultra-low density polyethylene (ULDPE) weathering resistance master batch. With the composition, a broad width shed plastic film (a width of more than or equal to 8 m and a thickness of more than or equal to 60 mum) can be blown out without any blending, wherein the broad width shed plastic film has the following characteristics that: weathering resistance is excellent, fisheyes on the surface of the shed plastic film are less, and natural damage can not occur after the shed plastic film continuously covers a greenhouse for more than 45 months. The present invention further provides a preparation method for the resin composition, wherein the preparation method has advantages of short procedure ...

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Номер записи: 29
13-02-2013 дата публикации

Weathering resistance metallocene polyethylene agriculture film resin composition and preparation method thereof

Номер: CN102924798A
Автор: Xu Dianhong, Li Jing, Zhai Yunfang, He Liancheng, Yang Ruxin, He Ying, Liang Tianzhen, Zhu Jing, Wei Xuling, Cong Rixin
Принадлежит:

The present invention provides a metallocene polyethylene agriculture film resin composition and a preparation method thereof. The metallocene polyethylene agriculture film resin composition comprises, by weight of mLLDPE, (1) 100% of mLLDPE, (2) 0.07-0.2% of a compound cross-linking aid, and (3) 10-30% of POE weathering resistance master batch. With the composition, a broad width shed plastic film with a width of more than or equal to 8 m and a thickness of more than or equal to 60 mum can be blown out without any blending, fisheyes on the surface of the shed plastic film are less, and natural damage can not occur after the shed plastic film continuously covers a greenhouse for more than 40 months. The present invention further provides a preparation method for the resin composition.

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Номер записи: 30