11 results about "Bisphenol A diglycidyl ether" patented technology

This invention discloses a method for preparing double-crosslinked cable materials containing diallyl bisphenol A diglycidyl ether and DCP, belonging to the field of high-voltage DC cable technology. The method for preparing EAA and LDPE cable materials containing diallyl bisphenol A diglycidyl ether and DCP as double crosslinking agents involves using ethylene-acrylic acid copolymer (EAA) and low-density polyethylene (LDPE) as the matrix, employing a small molecule epoxy compound and DCP as crosslinking agents, and heating and pressurizing on a flat vulcanizing machine to obtain double-crosslinked high-voltage DC cable materials. The preparation method of the double-crosslinked high-voltage DC cable materials prepared by this invention is simple and significantly improves the thermal elongation and breakdown performance of high-voltage cable materials.

The application belongs to the field of electronic and electrical device packaging materials, and provides a high-heat-dissipation composite functional material and a preparation method and application thereof. Bisphenol A diglycidyl ether, diphenyl diglycidyl ether, 1,4-butanediol diglycidyl ether, 3-glycidyl ether oxypropyl trimethoxysilane, polyimide shell-coated hexagonal boron nitride core-shell filler, spherical alumina, methyl hexahydrophthalic anhydride and 2-ethyl-4-methyl imidazole are cooperatively designed, and the material is obtained through mixing, degassing and segmented curing. The obtained material has relatively high apparent thermal conductivity, volume resistivity, bending strength and breakdown strength, the uncured composition has suitable viscosity, the problems of poor fluidity under high filling conditions, limited processing window and difficult to balance high thermal conductivity and high electrical insulation are solved, and the material has good electronic and electrical device packaging application value.

The present application belongs to the technical field of conveying belt, and particularly relates to a coal mine underground flame-retardant aramid rope conveying belt and a preparation method thereof. The present application comprises an aramid framework formed by arranging a plurality of aramid ropes and a covering rubber coated on the outside of the aramid framework, the aramid ropes constituting the aramid framework are connected by intermediate rubber, and the aramid framework and the covering rubber are connected by intermediate rubber; the aramid ropes are treated by solvent immersion and ultraviolet lamp irradiation; the raw material components of the covering rubber contain epoxidized butyronitrile rubber; the raw material components of the intermediate rubber contain an adhesive; the adhesive is prepared by reacting dienyl bisphenol A diglycidyl ether and end hydrogen-containing fluorosilicone oil under the catalysis of a platinum catalyst and with gamma-(methacryloyloxy)propyl trimethoxysilane. The present application introduces intermediate rubber, which is combined with the aramid framework and the covering rubber, has high bonding strength, and prolongs the service life of the conveying belt.

The application discloses a high-thermal-stability shape memory bionic adhesion structure and a preparation method, and belongs to the technical field of bionic adhesion structures. The structure uses m-xylylenediamine (MXDA) with a benzene ring as a curing agent of an epoxy resin monomer, selects bisphenol A diglycidyl ether (DGEBA) with a purity of greater than or equal to 85% as an epoxy monomer, and selects n-octylamine (OA) as an active agent to promote the reaction between MXDA and DGEBA. A microstructure template is prepared by a deep silicon etching method, and a cylindrical microstructure is prepared on the surface of the epoxy resin, so that the structure has the characteristics of high adhesion, relatively low pre-pressure, high adhesion-pressure ratio and high switching ratio. The adhesion performance of a traditional epoxy-based shape memory bionic adhesion structure is improved, and the transition temperature of the bionic adhesion structure is significantly improved, so that the application scenarios of the shape memory bionic adhesion structure are expanded.

This invention discloses a controllable endothermic VO2@MXene / epoxy resin anti-corrosion composite coating and its preparation method. The invention first prepares a single-layer Ti3C2T x MXene; then polydopamine (PDA) was used as a binder for monolayer Ti3C2T. x The MXene nanosheets in MXene are coated, which not only improves the mechanical stability of MXene but also provides a large number of "anchor points" as binders to load M-phase VO2 nanoparticles onto Ti3C2T. x VO2@Ti3C2T with controllable light absorption and photothermal conversion was prepared on the MXene surface. x MXene nanosheets; finally, hyperbranched amide compounds, bisphenol A diglycidyl ether, and VO2@Ti3C2T were added. x A VO2@MXene / epoxy resin anti-corrosion composite coating was prepared by uniformly mixing MXene nanosheets. Experimental results show that the controllable endothermic VO2@MXene / epoxy resin anti-corrosion composite coating prepared by this invention has controllable photothermal properties and anti-corrosion properties. Furthermore, the synthesis method of this invention is simple and suitable for widespread application.

This invention discloses a two-step method for preparing diallyl bisphenol A diglycidyl ether, relating to the field of epoxy resin materials technology. The method involves steps one to four to prepare electronic-grade diallyl bisphenol A diglycidyl ether with a viscosity of 1300-2500 mPa·s (25℃), an epoxy equivalent of 210-240 g / mol, readily saponifiable chlorine <100 ppm, and total chlorine <700 ppm. This two-step method for preparing diallyl bisphenol A diglycidyl ether utilizes a two-step process to obtain a diallyl bisphenol A diglycidyl ether with low hydrolyzable chlorine, low total chlorine, and high yield. Compared to ordinary bisphenol A type epoxy resins, this invention introduces an allyl structure onto the benzene ring, increasing the active functional groups in the molecular chain and expanding the application fields of this epoxy resin.

This invention belongs to the technical field of coating compositions, specifically relating to a heat-resistant and flame-retardant coating based on a high-performance masterbatch, a battery flame-retardant film, and their preparation methods. The coating comprises, by weight, 50-80 parts of tackifying resin, 35-45 parts of bisphenol A diglycidyl ether epoxy resin, 15-20 parts of DCPD phenol epoxy resin, 30-50 parts of masterbatch, 5-9 parts of nanofiller, 6-10 parts of 4,4'-diaminodiphenyl sulfone, 0.3-0.5 parts of dicyandiamide curing agent, 0.1-0.5 parts of accelerator A, 4-7 parts of accelerator B, 1-3 parts of silane coupling agent, and 480-700 parts of solvent. The nanofiller is a mixture of amino POSS and nano-SiO2, exhibiting good high-temperature flame-retardant properties.