Aluminum substrate binding agent and aluminum substrate with same
A technology of aluminum substrate binder and mixture, applied in the direction of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problem that the withstand voltage performance, Tg value and dielectric constant are difficult to meet the market Demand and other issues, to achieve the effect of good dielectric constant, high Tg, high withstand voltage performance
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Embodiment 1
[0024] An aluminum substrate bonding agent, which includes the following raw materials in parts by weight: 40 parts of polyurethane modified epoxy resin, 30 parts of tung oil modified phenolic resin, 10 parts of high-functionality polyurethane modified acrylate, inorganic powder Body 100 parts, nitrile rubber 20 parts, organosilicon compound 5 parts, imidazole 1 part, curing agent 1 part.
[0025] The surface of the inorganic powder is modified by a silane coupling agent. The modification method is: configure ethanol / water solution with a volume ratio of 4:1, add inorganic powder accounting for 1% of the mass of ethanol / water solution, High-speed shearing at rotating speed, then adding silane coupling agent accounting for 1% of the mass of ethanol / water solution, adding oxalic acid solution to make the pH value of the reaction system at 3, after reacting for 1.5 hours, suction filtration, washing, and drying to obtain surface modification of inorganic powders.
[0026] The in...
Embodiment 2
[0034] An aluminum substrate bonding agent, which includes the following raw materials in parts by weight: 50 parts of polyurethane modified epoxy resin, 35 parts of tung oil modified phenolic resin, 12 parts of high-functionality polyurethane modified acrylate, inorganic powder Body 120 parts, nitrile rubber 25 parts, organosilicon compound 8 parts, imidazole 1.2 parts, curing agent 2 parts.
[0035] The surface of the inorganic powder is modified by a silane coupling agent. The modification method is: configure ethanol / water solution with a volume ratio of 5:1, add inorganic powder accounting for 3% of the mass of ethanol / water solution, High-speed shearing at rotating speed, then adding silane coupling agent accounting for 3% of the mass of ethanol / water solution, adding oxalic acid solution to make the pH value of the reaction system at 3.5, after reacting for 1.8 hours, suction filtration, washing, and drying to obtain surface modification of inorganic powders.
[0036] ...
Embodiment 3
[0044] An aluminum substrate bonding agent, the aluminum substrate bonding agent includes the following raw materials in parts by weight: 60 parts of polyurethane modified epoxy resin, 40 parts of tung oil modified phenolic resin, 15 parts of high-functionality polyurethane modified acrylate, inorganic powder Body 150 parts, nitrile rubber 30 parts, organosilicon compound 10 parts, imidazole 1.5 parts, curing agent 3 parts.
[0045] The surface of the inorganic powder is modified by a silane coupling agent. The modification method is: configure ethanol / water solution with a volume ratio of 6:1, add inorganic powder accounting for 5% of the mass of ethanol / water solution, Shear at high speed at a rotating speed, then add silane coupling agent accounting for 5% of the mass of ethanol / water solution, add oxalic acid solution to make the pH value of the reaction system at 4, react for 2 hours, suction filter, wash, and dry to obtain the surface-modified Inorganic powder.
[0046]...
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