Classification and application of silicone silicone resin-Iota

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News > Dynamic industry > Classification and application of silicone silicone resin

Classification and application of silicone silicone resin

Silicone resin is a highly crosslinked network structure of poly organic siloxane, usually with various mixtures of methyl trichlorosilane, dimethyl dichloro silane, phenyl trichloro silicane, diphenyl dichloro silane or methyl phenyl dichloro silane, in organic solvents such as toluene, under the low temperature hydrolysis, acid hydrolysate. The initial product of the hydrolysis is a cyclic, linear and cross-linked polymer, usually containing a considerable number of hydroxyl groups. The hydrolysate was washed by water, and the neutral of the initial polymer in the air or in the presence of the catalyst further condensation, and the formation of highly cross-linked three-dimensional network structure. Silicone resin is a thermosetting plastic, one of its most outstanding performance is excellent thermal oxidation stability. 24 after 250 hours of heating, the weight loss was only 2 to 8%. Another outstanding performance of silicone resin is excellent electrical insulation properties, which can be maintained in a wide range of temperature and frequency. In view of the above characteristics, silicone resin mainly as insulating paint (including varnish, enamel, paint, varnish and other) impregnated H-class motor and transformer coil, as well as to impregnated glass cloth, glass steel wire and asbestos cloth made motor casing, electrical insulation winding etc.. Insulating material of large area of mica can be obtained by using silicone insulating paint bonded mica, and used as the main insulation of high voltage motor. In addition, silicon resin can also be used as heat resistant, weather resistant anticorrosive paint, coatings for metal protection, construction waterproof coating, release agent, adhesives and secondary processing into silicone plastic, used in electronic, electrical and national defense industry as the semiconductor packaging materials, electric and electronic parts of insulating material. Silicone resin according to its main purpose and crosslinking method can be divided into silicone insulating paint, silicone paint, silicone plastic and silicone adhesive, and other major categories.

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