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Sep 21, 2018
Silicone insulating powder coating
Silicone insulation coatings available silicone resin or a silicone-modified epoxy resin, silicone-modified polyester film material, mainly varnishes and enamels classes, both high temperature curing type, there are also low-temperature curing type. In a wide frequency range, the dielectric constant and dielectric loss is very small, and small changes with temperature. At present, most silicone-modified epoxy resins are liquid, powder coating is difficult to meet the requirements. Use of modified epoxy resin hydroxy silicone oil, insulating powder coating formulated and studied the electrical properties of the silicone-modified epoxy resin. The results show that the silicone successfully grafted onto the epoxy chain molecular weight of 5000, after the film prepared by high-pressure cooking, excellent electrical properties, the resin can be used in the insulating powder coatings.