From the above three kinds of silicone resin can be seen: silicon atom connection of organic groups on the performance of the resin has a great impact, when methyl, can give silicone thermal stability, demould, hydrophobicity, arc resistance; Is a phenyl group, gives the resin oxidation stability, it can destroy the crystallization of high polymer in a certain range; When made of vinyl, the curing properties of silicone resin can be improved and the coupling property can be brought. For tetraclorobenzene, the lubricity of the polymer can be improved; When it is phenyl ethyl, the miscibility of silicone resin and organic matter can be improved. For aminopropyl, the water solubility of the polymer can be improved, and the coupling property can be brought. For amyl group, the hydrophobicity of silicone resin can be improved. Therefore, different organic groups can be introduced in the preparation process of silicone resin. In order to improve the adhesion of silicone resin, silicone resin can be copolymerized with polyester, epoxy, phenolic, etc., silicone polyester copolymer can be prepared by condensation reaction of polyester containing hydroxyl and silane containing alkoxy (or siloxane), or silane containing silicone hydroxyl (or siloxane).
There are many ways to synthesize organosilicon-epoxy copolymer, but most of them are made of commercial epoxy resin as raw material. According to different use requirements, select appropriate varieties and low molecular weight organosilicone resin containing alkoxy or hydroxyl group for co-condensation reaction to prepare the copolymer.