A kind of high-strength pcb circuit board conductive silver paste and preparation method thereof
A technology of PCB circuit board and conductive silver paste, which is used in cable/conductor manufacturing, circuits, conductive materials dispersed in non-conductive inorganic materials, etc. Achieve the effect of not easy to fall off, increase strength, and save consumption
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[0017] A high-strength PCB circuit board conductive silver paste, made of the following raw materials in parts by weight (kg): 15 antimony tin oxide, 3 calcium sulfate whiskers, 55 micron-sized silver powder, 5 tantalum carbide whiskers, and 1.5 urotropine , glass powder 8, isopropyl tris (dioctyl pyrophosphate acyloxy) titanate 1.5, E-12 epoxy resin 10, isocyanate 2.5, diethylene glycol 4, glyceryl triacetate 6, itaconic acid 1.6, terpineol 5;
[0018] The glass powder is made of the following raw materials in parts by weight (kg): SiO2 11, V2O5 17, Sb2O3 6, fumed alumina 3, activated alumina 17, P2O5 5, anoxic cerium oxide 4, MgO2.5, Four-needle zinc oxide whisker 3; the preparation method is: mix SiO2, V2O5, Sb2O3, gas-phase aluminum oxide, activated alumina, P2O5, anoxic cerium oxide, and MgO, put them into a crucible, and heat and melt at 1300 ° C to form Liquid, then add four-needle zinc oxide whiskers, stir evenly, and then carry out vacuum defoaming, the vacuum degree...
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