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Does silicone resin have a release effect?
- Categories:Company news
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- Time of issue:2020-12-25
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(Summary description)There are many types of silicones, some are hydrophobic and lipophilic, with release effect, and some are modified, hydrophilic,
Does silicone resin have a release effect?
(Summary description)There are many types of silicones, some are hydrophobic and lipophilic, with release effect, and some are modified, hydrophilic,
- Categories:Company news
- Author:
- Origin:
- Time of issue:2020-12-25
- Views:0
Information
There are many types of silicones, some are hydrophobic and lipophilic, with release effect, and some are modified, hydrophilic, strong adhesion, and weak release effect. Silicone refers to a polymer in which organic groups are directly connected to silicon. It mainly includes three categories [Fields]: silicone oil, silicone rubber, and silicone resin.
Silicone resin is a highly cross-linked polyorganosiloxane with a network structure, usually methyltrichlorosilane, dimethyldichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane or methylphenyl Various mixtures of dichlorosilane, in the presence of organic solvents such as toluene, are hydrolyzed at lower temperatures to obtain acid hydrolysates. The initial product of the hydrolysis is a mixture of cyclic, linear and cross-linked polymers, usually containing a considerable number of hydroxyl groups.
There are roughly three ways to cure and crosslink silicone resins: one is to use the hydroxyl groups on the silicon atoms to shrink and polymerize and crosslink to form a network structure, which is the main way to cure silicone resins, and the other is to use ethylene connected to the silicon atoms. Base, using organic peroxide as a catalyst, similar to the way of silicone rubber vulcanization: the third is to use the vinyl and silicon-hydrogen bond connected to the silicon atom to carry out the addition reaction, for example, solvent-free silicone resin and blowing agent can be mixed Get foamed silicone resin. Therefore, silicone resins can be roughly divided into silicone insulating varnishes, silicone coatings, silicone plastics and silicone adhesives according to their main uses and crosslinking methods.
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