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Introduction to silicone

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Description:
Silicone resin is a thermosetting polyorganosiloxane with a high crosslinking structure. Because of its special structure, compared with other organic resins, it has excellent heat resistance, cold resistance, weather resistance, electrical insulation, hydrophobicity and anti-stick release property. Therefore, it is widely used as high and low temperature insulation paint, heat resistant paint, weather resistant paint, ablative paint and high and low temperature resistance, electrical insulation molding plastics.
Silicone resin is generally prepared from organic chlorosilane mixture or organic ethoxysilane by hydrolysis and polycondensation in a mixed solvent. The curing of silicone resin is the process of transforming into a thermosetting resin with three-dimensional network structure and insoluble and non-melting under the action of heating or catalyst. At present, there are many researches on silicone resin at home and abroad. Silicone resins generally need to be cured at high temperatures, which limits their range of use.


Categories:
Silicone resin types mainly include methyl phenyl silicone resin, methyl silicone resin, low phenyl methyl silicone resin, silicone resin emulsion, self-drying silicone resin, high temperature silicone resin, epoxy modified silicone resin, silicone polyester modified resin, self-drying environmental protection silicone resin, environmental protection silicone resin, non-stick coating silicone resin, high light silicone resin, benzyl transparent Silicone resin, methyl transparent silicone resin, mica bonded silicone resin, polymethyl silicone resin, amino silicone resin, fluorosilicone resin, silicone resin solution, silicone epoxy resin, silicone polyester resin, solvent resistant silicone resin, silicone adhesive, silicone sealant, high temperature resistant methyl silicone resin, self-drying silicone insulating paint, methyl MQ silicone resin Vinyl MQ silicone resin, silicone acrylic resin coating.

Compositing:
Various mixtures of methyltrichlorosilane, dimethyldichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, or methylphenyldichlorosilane are usually decomposed with water at lower temperatures in the presence of an organic solvent such as toluene to obtain an acidic hydrolysate. The initial product of hydrolysis is a mixture of cyclic, linear, and cross-linked polymers, often with considerable hydroxyl groups. The hydrolysate is washed to remove the acid, and the neutral primary polycondensates are thermally oxidized in air or further polycondensates in the presence of catalysts, and finally form a highly cross-linked three-dimensional network structure.

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