Abstract: Disclosed are an aminosilane modified tackifier and a preparation method therefor, and a silane modified polyether adhesive and a preparation method therefor. The aminosilane modified tackifier has the following structure. The aminosilane modified tackifier is added in the silane modified polyether adhesive of the present disclosure, such that the silane modified polyether adhesive has high adhesion property with a base material, particularly high water-soaking adhesion property, and meanwhile has high comprehension properties such as high displacement capability, high elasticity recovery rate and high cohesion strength, and thus has significant advantages compared with the existing products in the market.

Abstract: Disclosed are an organic dibasic acid modified epoxy acrylate prepolymer and a photo-thermal dual-curing conductive adhesive prepared from the modified epoxy acrylate prepolymer. The modified epoxy acrylate prepolymer is prepared in parts by mass from 45 to 72 parts of epoxy resin, 12 to 20 parts of 1,4-butanediol diglycidyl ether, 7 to 26 parts of organic dibasic acid, 5 to 15 parts of acrylic acid, and 0.26 to 0.45 parts of a polymerization inhibitor under the catalysis of 0.13 to 0.28 parts of a catalyst. A general structural formula of the organic dibasic acid is HOOC—R—COOH. The prepared modified epoxy acrylate prepolymer has an epoxy group content of 3% to 9%, a hydroxyl content of 3% to 10% and a vinyl content of 2% to 8%.

Abstract: Provided are a polyurethane phase-change nanocapsule, a phase-change polyurethane pouring sealant and a preparation method therefor. The polyurethane phase-change nanocapsule is a nanocapsule formed by coating a phase-change material with an amphiphilic block copolymer. The oleophilic end of the amphiphilic block copolymer is a polyurethane chain segment, and the hydrophilic end is a methoxy polyethylene glycol chain segment. The polyurethane phase-change nanocapsule is added, such that the two-component phase-change polyurethane pouring sealant has a temperature control advantage, and has an excellent enthalpy value and heat-conducting properties while maintaining a low viscosity. In the field of electronic engineering, particularly in the field of electronics needing temperature control, the pouring sealant has an application value.

Abstract: A graphdiyne dispersion liquid, a bi-component polyurethane adhesive and a preparation method therefor, wherein the graphdiyne dispersion liquid is prepared from graphdiyne powder and a polyurethane dispersant; component A of the bi-component polyurethane adhesive comprises a polyurethane prepolymer, an additive and a graphdiyne dispersion liquid, and component B of the bi-component polyurethane adhesive comprises polyol, a catalyst, and a graphdiyne dispersion liquid. The bi-component polyurethane adhesive has relatively good anti-ultraviolet weather resistance and bubble suppression performance during a curing process, and has a potential application value in high-end industrial fields.