Methoxy-terminated methylphenyl polysiloxane resin, silicone coating glue, preparation method and application

A technology of polysiloxane resin and terminal methyl phenyl group, applied in the field of coating protective materials, can solve the problems of reducing the transparency of organic coating glue, restricting the use of organic coating glue, etc.
CN109232894BActive Publication Date: 2021-04-06广州天宸高新材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广州天宸高新材料有限公司
Publication Date
2021-04-06

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Abstract

The invention relates to a methoxy-terminated methylphenyl polysiloxane resin, a silicone coating glue, a preparation method and an application thereof, and the silicone material for preparing the methoxy-terminated methylphenyl polysiloxane resin is Oxygen monomers include: 19-30 parts of diphenyldimethoxysilane, 20-30 parts of dimethyldimethoxysilane and 40-60 parts of methyltrimethoxysilane; The mass content of phenyl groups in the group-terminated methylphenyl polysiloxane resin is 23% to 25%. The above-mentioned methoxy-terminated methylphenyl polysiloxane resin is terminated with methoxy groups and has a suitable content of phenyl groups, so that its refractive index is very close to that of fumed silica and has a suitable viscosity . Using this polysiloxane resin to replace the base material in the traditional organic coating adhesive, and adding fumed silica as a reinforcing agent can significantly improve the mechanical properties such as hardness and tensile strength on the basis of ensuring high transparency , Adhesive performance and air tightness.
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Description

technical field

[0001] The invention relates to the technical field of coating protection materials, in particular to a methoxy-terminated methylphenyl polysiloxane resin, a silicone coating glue, a preparation method and an application. Background technique

[0002] With the rapid development of the electronic technology industry, the components on the circuit board are becoming more and more sophisticated, and the application environment is also becoming harsher, which puts forward higher requirements for the glue that provides three-proof protection. Silicone coating adhesive is widely used in the bonding of electronic and electrical components because of its superior high and low temperature resistance, environmental protection, non-corrosion, and economical properties, and is also widely used in the coating of circuit boards. Play the role of moisture-proof, mildew-proof and salt spray-proof on the surface.

[0003] At present, there are two main types of silicone coat...

Claims

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