Electrical appliance insulation sealant

Abstract

The invention discloses an electrical appliance insulation sealant which is prepared from the following raw materials in parts by weight: 50-60 parts of bisphenol A type epoxy resin, 30-35 parts of water soluble phenolic resin, 30-35 parts of natural rubber, 5-8 parts of methyltrichlorosilane, 3-8 parts of dichlorodimethylsilane, 1-3 parts of dioctyl phthalate, 5-10 parts of pentaerythritol ester of rosin and the like. Meanwhile, the electrical appliance insulation sealant is also prepared from a mixture of sodium bicarbonate particles and carbon powder, wherein the particle size of the mixture is smaller than 0.1mm. When being just filled into a position to be sealed, the sealant is heated to 50 DEG C or above by hot air blown from an air blower, and heating is stopped after continuing for 30s. The invention provides a novel sealant with good heat dissipation function.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to an electrical insulation sealant. Background technique [0002] In order to ensure the stable and reliable electrical performance and mechanical strength of motors and electrical components, it is necessary to insulate and seal between conductors, gaps and outlet leads. Electronic and electrical sealants are suitable for various structural bonding and sealing in industrial production, such as: Structural bonding of steel plates in automobile compartments, CRT picture tubes, circuit boards, automotive headlight gasket seals, etc. However, at present, the sealing rubber of electronic appliances will release small molecules during the curing process, which has a slight irritation to the skin and eyes. [0003] At the same time, the existing sealant is mainly used in electronic components, and electronic components are often in a high-temperature working state. When the...

AI Technical Summary

Problems solved by technology

[0002] In order to ensure the stable and reliable electrical performance and mechanical strength of motors and electrical components, it is necessary to insulate and seal between conductors, gaps and outlet leads. Electronic and electrical sealants are suitable for various structural bonding and sealing in industrial production, such as: Structural bonding of steel plates in car compartments, CRT picture tubes, circuit boards, car headlight gasket seals, etc. However, at present, the sealing rubber of electronic appliances will release small molecules during the curing process, which has a slight irritation to the skin and eyes

[0003] At the same time, the existing sealant is mainly used in electronic components, and electronic components are often in a high-temperature working state. When the heat dissipation performance of the sealant is not good, it will cause the electronic components to fail or be damaged due to local overheating. However, the sealant in the prior art often only plays the role of sealing and fixing, not only can not conduct heat well, but also is more unfavorable for heat dissipation because of its heat insulation; therefore, how to improve the existing sealant to achieve the ideal Heat dissipation performance is a technical problem that needs to be solved urgently in this field