What is an organosilicone adhesive?
Among the existing heat resistant adhesives, organosilicone adhesive is one of the excellent varieties. The varieties of organosilicone adhesive are divided into high temperature resistant adhesives, heat resistant sealants, high temperature resistant strain adhesives and heat resistant pressure sensitive adhesives. So, what are the applications of silicone adhesives?
Polyorganosiloxane is a linear polymer composed of silicon atoms and oxygen atoms alternately. It has excellent high and low temperature resistance, atmospheric aging resistance, electrical insulation and elasticity after cross-linked vulcanization. Can be used in the range of -60 ~ 200℃ for a long time, its physical and mechanical properties rarely change, so it is widely used in construction, electronics, automobiles, packaging, medical and health industries, showing excellent development momentum, the use of silicone adhesive and sealant is expanding, varieties and dosage are also increasing year by year.


Silicone resin
Pure silicone as the main material of silicone adhesive, generally xylene as solvent, adding inorganic filler, such as asbestos powder, mica powder, Qin dioxide and zinc oxide made. It is crosslinked polymerization and curing at high temperature (270℃), has excellent high temperature resistance, can be used at 400℃ for a long time, suitable for non-structural bonding and sealing at high temperature.
Pure silicone adhesive due to high curing temperature and inconvenient use, bonding strength is not high, can only be used as non-structural adhesive. By using an OH in epoxy, phenolic and polyvinegar to react with siloxane in silicone resin, the high temperature resistance of silicone adhesive can be maintained, the curing temperature can be reduced and the bonding strength can be improved.
Silicone can be used for anti-stick coating roller, widely used in textile industry, printing and dyeing industry, paper industry, rubber processing, plastic processing and other fields of all kinds of roller, mold, pipeline, engine wall, food machinery, printing machinery hopper, frying pan baking pan anti-stick coating, anti-rust and slippery coating of the safety knife. Fluorine resin non-stick coating and silicone non-stick coating comparison: the former has high curing temperature, complex construction technology, low film luster, single color and other shortcomings, so the application range is limited; Silicone non-stick coating has the advantages of relatively low curing temperature, high gloss, variable color, convenient coating and so on. It is also very popular among users in the actual construction application. Of course, the fluorine resin nonstick coating in the nonstick aspect than the silicone resin has a slight advantage.

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