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Development Status of Silicone Pressure Sensitive Adhesive

发布时间：2024-07-04

China's silicone pressure sensitive adhesive mainly depends on imports, domestic research and development is still in the early stages.

Silicone pressure-sensitive adhesives are solvent-based and heat-curing. Solvent-based silicone pressure-sensitive adhesive is usually heated or naturally dried for a period of time to allow the solvent to volatilize, which can have pressure-sensitive adhesive, but this type of pressure-sensitive adhesive can be dissolved by the solvent. Heating curing silicone pressure sensitive adhesive usually needs to be heated to more than one hundred degrees to form a pressure sensitive adhesive performance. If you need to use isolation film, with ordinary pressure sensitive adhesive isolation film can be.

Different silicone pressure sensitive adhesive has different heat resistance, high temperature resistance can reach more than 300 degrees Celsius.

The usual solid content of silicone pressure-sensitive adhesive is generally between 10% and 60%, and the range of viscosity (viscosity) is very adjustable (consistency is not necessarily proportional to solid content). The low one can have hundreds of CPS (centipoise = mpas) and the high one can reach millions of CPS. Therefore, manufacturers can provide different models according to needs to meet the requirements of different construction processes, such as bachelor coating, reticulated coating, dip coating, blade coating, brush coating, flow coating, etc.

Silicone pressure-sensitive adhesives usually contain flammable and easy-to-use solvents, such as toluene, xylene, ethyl acetate, solvent gasoline, petroleum ether, etc., which need to be managed as dangerous goods during storage, transportation and use.

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