Anisotropic conductive adhesive film with high normal temperature modulus

The invention relates to an anisotropic conductive adhesive film with high normal temperature modulus, and belongs to the technical field of anisotropic conductive adhesive films. The invention discloses an anisotropic conductive adhesive film with high normal temperature modulus, and the anisotropic conductive adhesive film is prepared from the following raw materials in parts by weight: 10-20 parts of a conductive adhesive, 1-5 parts of a curing agent and 1-5 parts of a curing agent. Comprising the following components in parts by weight: 5-15 parts of nitrile rubber, 5-30 parts of thermoplastic resin with high glass transition temperature, 20-45 parts of polyurethane-acrylate with high glass transition temperature, 5-15 parts of a monomer, 1-10 parts of conductive particles, 10-30 parts of silicon dioxide, 1-10 parts of titanium dioxide, 1-10 parts of a free radical initiator and 0-20 parts of other auxiliaries. The total addition amount of the nitrile rubber and the monomer accounts ...

Decolouring method for plant fibre slurry liquid

Anisotropic conductive adhesive film with long shelf life and preparation method thereof

The invention relates to the technical field of anisotropic conductive adhesive films, and relates to an anisotropic conductive adhesive film with a long shelf life and a preparation method thereof. The invention discloses an anisotropic conductive adhesive film with a long shelf life. The anisotropic conductive adhesive film with the long shelf life comprises the following raw materials: a first solution, a second solution and an initiator in a mass ratio of (12-20): (20-26): 1, wherein the first solution comprises an adhesive, a curing agent and a free radical polymerization inhibitor, and the content of the free radical polymerization inhibitor in the first solution is 0.1-0.5%; the second solution comprises a resin base material, conductive particles and carboxyl modified graphene, and the content of the carboxyl modified graphene in the second solution is 2.1-4.5%. The invention further discloses a preparation method of the anisotropic conductive adhesive film with the long shelf life ...

Display module, quality detection method of display module and display equipment

The invention relates to a display module, a quality detection method of the display module and display equipment. The display module comprises a display screen and a cover plate covering the display screen, the cover plate comprises a substrate and an ink layer, the ink layer is arranged on the side, facing the display screen, of the substrate, and the inner edge of the ink layer defines a window area of the substrate; the display screen comprises a display area and a non-display area, the non-display area surrounds the periphery of the display area, a visual frame and a visual picture arranged in the visual frame are arranged in the display area, and the inner edge of the visual frame defines a visual picture area of the display screen. Through the arrangement, the display module is lightened, whether the printing ink layer shields the picture needing to be displayed or not is judged by judging whether the visual frame is located in the window area or not, that is, whether the visual ...

Artificial wood

The artificial wood utilizes woody material of small-diameter timber and bamboo, and their branch and twig, cotton stalk and similar material. After pretreatment including the steps of trimming, cutting, peeling and softening, then the material is dissociated through kneading and separation into small cellulose bundles which are further processed through the steps of drying, gluining, spreading, and hot pressing into the artificial wood. The artificial wood is suitable for use in various fields.

Decolouring method for plant fibre slurry liquid

The decolourizing method for plant fibre pulp is characterized by that firstly, it uses alum solution to clean pulverized plant cellulose, then uses sodium hypochlorite solution and Chinese medicinalmaterial Chinese yam to prepare decolouring liquor and uses the Chinese medicinal material poria and a small quantity of hydrochloric acid whose concentration is 30-36% to prepare stabilizing liquor,and then uses the two liquors to make decolourizing and stabilizing treatment. Said invented decolouring liquor mainly is made up by using Chinese medicinal material, so that its discharged waste water is neutral, does not pollute environment, and said pulp can be used for making paper, preparing napkin paper and disposable tableware, etc..

Method for designing crowbar resistor for passing through low voltage of double-fed type wind generator system

The invention relates to a method for designing a crowbar resistor for passing through the low voltage of a double-fed type wind generator system, belonging to the technical field of wind power generation and comprising the following steps: firstly, acquiring the rotor turns ratio, the rotor resistance, the rotor rated current and the rotor current upper limit of a double-fed generator of the wind generator system; computing current overload multiples according to the rotor rated current and the rotor current upper limit; acquiring the DC bus voltage of the wind generator system; computing a per-unit parameter kc of the crowbar resistor according to the DC bus voltage, the current overload multiples, the rotor rated current and the rotor resistance; obtaining a modified per-unit parameter kc after properly increasing the per-unit parameter kc; and finally, designing the resistance value of the crowbar resistor to be Rc=kcRr. The method designs the crowbar resistor according to a principle ...

Method for regulating electromagnetic properties by using multi-physics field synergistic modified graphene oxide

The invention discloses a method for regulating electromagnetic properties by using multi-physics field synergistic modified graphene oxide. The method comprises the following steps: by taking graphene oxide as a raw material, performing thermal field modification, uniformly mixing graphene oxide subjected to heat treatment with graphene oxide to enhance the response of the graphene oxide on a microwave field; rapidly forming a heat field under microwave irradiation, controlling the number of graphene surface groups and graphene stack layers under the coaction of the heat field and the microwave field, and regulating the electromagnetic properties. According to the method disclosed by the invention, complex chemical control is not involved, reaction solvents, surface modifiers and other chemical reagents are not introduced, pollutant emission is avoided, the method belongs to a green and high-efficiency process, a novel method can be provided for modification of graphene and other nanometer ...

High-reliability anisotropic conductive adhesive film

The invention belongs to the technical field of anisotropic conductive adhesive films, and relates to a high-reliability anisotropic conductive adhesive film. The invention discloses a high-reliability anisotropic conductive adhesive film, which is prepared from the following raw materials in parts by weight: 10-20 parts of an anisotropic conductive adhesive film, 1-5 parts of a curing agent and 1-5 parts of a curing agent, comprising the following components in parts by weight: 5-15 parts of nitrile rubber, 5-25 parts of thermoplastic resin, 25-45 parts of a polyurethane-acrylate prepolymer with a high glass transition temperature (Tg), 5-15 parts of a polyfunctional monomer, 5-30 parts of an acrylate prepolymer with a hydrophobic group, 1-10 parts of conductive particles, 10-30 parts of silicon dioxide, 1-10 parts of titanium dioxide, 1-10 parts of a free radical initiator and 0-20 parts of other auxiliaries. The acidity of the polyfunctional group monomer, the high glass transition temperature ...

Anisotropic conductive adhesive film with high bonding strength and preparation method thereof

The invention relates to a high-bonding-strength anisotropic conductive adhesive film and a preparation method thereof, and belongs to the technical field of anisotropic conductive adhesive films. The invention discloses an anisotropic conductive adhesive film with high bonding strength. The anisotropic conductive adhesive film with high bonding strength comprises an upper insulating layer, a middle conductive layer and a lower insulating layer from top to bottom, and raw materials of the upper insulating layer and the lower insulating layer comprise an acrylic resin/polyurethane resin composite material and an isocyanuric acid monomer; the raw material of the middle conductive layer is an epoxy resin system. The invention also discloses a preparation method of the anisotropic conductive adhesive film with high bonding strength, and the method comprises the following steps: sequentially coating the lower bonding layer, the middle conductive layer and the upper bonding layer on the surface ...

Anisotropic conductive adhesive film with high repairability and application thereof

The invention belongs to the technical field of anisotropic conductive adhesive films, and relates to an anisotropic conductive adhesive film with high repairability and application thereof. The invention discloses an anisotropic conductive adhesive film with high repairability, and the anisotropic conductive adhesive film with high repairability is prepared from the following raw materials in parts by weight: 20-30 parts of a conductive adhesive film, 1-5 parts of a curing agent and 1-5 parts of a curing agent. Comprising the following components in parts by weight: 5-15 parts of a long-chain flexible monomer, 0.1-4 parts of a silane coupling agent, 5-15 parts of butyl rubber, 35-65 parts of polyurethane-acrylate, 1-10 parts of conductive particles, 10-30 parts of silicon dioxide, 1-10 parts of titanium dioxide, 1-10 parts of a free radical initiator and 0-20 parts of other auxiliaries. The invention also discloses an application of the anisotropic conductive adhesive film with high repairability ...

Method for designing crowbar resistor for passing through low voltage of double-fed type wind generator system

The invention relates to a method for designing a crowbar resistor for passing through the low voltage of a double-fed type wind generator system, belonging to the technical field of wind power generation and comprising the following steps: firstly, acquiring the rotor turns ratio, the rotor resistance, the rotor rated current and the rotor current upper limit of a double-fed generator of the wind generator system; computing current overload multiples according to the rotor rated current and the rotor current upper limit; acquiring the DC bus voltage of the wind generator system; computing a per-unit parameter kc of the crowbar resistor according to the DC bus voltage, the current overload multiples, the rotor rated current and the rotor resistance; obtaining a modified per-unit parameter kc after properly increasing the per-unit parameter kc; and finally, designing the resistance value of the crowbar resistor to be Rc=kcRr. The method designs the crowbar resistor according to a principle ...

Artificial wood