Insulating varnish and its preparation method, yellow wax silk and its preparation method
An insulating varnish, diphenyldichlorosilane technology, applied in textiles and papermaking, fiber processing, animal fibers, etc., can solve the problems of easy adhesion and poor performance of yellow wax silk
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[0015] The present invention provides a kind of preparation method of insulating varnish, wherein, described preparation method comprises:
[0016] (1) Heating and stirring diphenyldichlorosilane, trichlorosilane, epoxy resin and organic solvent until completely dissolved to obtain a mixture M1;
[0017] (2) Add a curing agent and a film-forming agent to the mixture M1 and stir evenly to obtain an insulating varnish; wherein,
[0018] Relative to 100 parts by weight of diphenyldichlorosilane, the amount of trichlorosilane is 60-140 parts by weight, the amount of epoxy resin is 20-70 parts by weight, and the amount of organic solvent is 150- 230 parts by weight, the amount of the curing agent is 1-5 parts by weight, and the amount of the film-forming agent is 1-5 parts by weight.
[0019] The present invention uses diphenyldichlorosilane and trichlorosilane as the main raw materials, adds epoxy resin, dissolves it through an organic solvent, and adds a curing agent and a film-...
Embodiment 1
[0033] Heat and stir 100g of diphenyldichlorosilane, 80g of trichlorosilane, 40g of epoxy resin and 180g of toluene until completely dissolved to obtain a mixture M1; add 0.5g of polydimethylsiloxane, 0.5g of ethylene Bis stearamide, 2g of diethylenetriamine and 2g of acrylic resin were stirred evenly to obtain insulating varnish N1; silk was immersed in insulating varnish N1 and after the insulating varnish N1 attached to the silk was dried, yellow wax silk A1 was obtained.
Embodiment 2
[0035] Heat and stir 100g of diphenyldichlorosilane, 120g of trichlorosilane, 60g of epoxy resin, 100g of acetone and 110g of ethyl acetate until completely dissolved to obtain mixture M1; add 2g of alkyl-modified organosiloxane to mixture M1 alkane, 2g monoglyceride stearate, 4g m-xylylenediamine and 4g polybutadiene resin and stir evenly to obtain insulating varnish N1; the acrylic fiber is immersed in the insulating varnish N1 and the insulating varnish N1 attached to the acrylic fiber is dried Finally, yellow wax silk A2 is obtained.
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