One-component addition type organic silicon electric-conduction adhesive and preparation method thereof

Abstract

The invention discloses a one-component addition type organic silicon electric-conduction adhesive and a preparation method thereof. According to the present invention, the trimeric cyanurate group capable of stabilizing the catalyst is introduced into the matrix material of the electric-conduction adhesive through molecular design so as to obtain the one-component addition type organic silicon electric-conduction adhesive capable of being stably stored at the room temperature; and the one-component addition type organic silicon electric-conduction adhesive capable of being stably stored is provided, and has advantages of no requirement of adding of a large amount of stabilizers such as alkynol, good storage stability at room temperature, fast curing, good electrical conductivity and the like.

Description

technical field [0001] The present invention relates to a one-component addition type silicone conductive adhesive and its preparation method, more precisely, the present invention relates to a one-component addition type conductive adhesive based on silicone resin which can be stored stably at room temperature . Background technique [0002] In the electronics industry, conductive adhesive is an adhesive with certain conductive properties after curing or drying. It usually uses matrix resin and conductive particles as the main components, and the conductive particles are combined through the bonding effect of the matrix resin. Form a conductive path and realize the conductive connection of the adhered material. Since the matrix resin of the conductive glue is an adhesive, an appropriate curing temperature can be selected for bonding, which avoids material deformation and electronic device damage that may be caused by high temperature welding. Thermal damage and the formati...

AI Technical Summary

Problems solved by technology

However, the two-component process will bring inconvenience to the construction: accurate measurement by the operator is required; mixing equipment and defoaming equipment are required (especially for high-viscosity systems, which are more challenging); if the mixed materials cannot be used in time, they will solidify and cause Waste and equipment cleaning is not easy

[0005] The disadvantages of the one-component addition type silicone conductive adhesive in the prior art are: a large amount of stabilizer (such as acetylenic alcohol) needs to be added; the stabilizer will volatilize during the curing process, which will increase the volume shrinkage of the product and affect the smoothness of the product surface Generally speaking, acetylenic alcohol compounds have certain toxicity, which limits their application in some fields; low temperature storage is required, the demand for energy is large, and it is inconvenient for transportation and storage; the stable storage time is short

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