Acrylate pressure-sensitive adhesive adhesive containing nano-siloxane condensate, adhesive sheet and preparation method thereof

Abstract

The invention provides a pressure-sensitive adhesive binder. The pressure-sensitive adhesive binder comprises, by weight, 90-99 parts of acrylate copolymer A, 1-10 parts of nano siloxane condensate B,5-15 parts of petroleum carbon hydrogen type tackifying resin and 0.02-2 parts of crosslinking agent, total amount of the acrylate copolymer A and the nano siloxane condensate is 100 parts in weight,the acrylate copolymer A is formed by copolymerizing acrylate monomer mixtures at least containing carboxyl-containing monomer P, the nano siloxane condensate B is a co-condensation product comprising part of or all of a siloxane compound B1, a siloxane compound B2 and a siloxane compound B3, the B1 contains carboxylic functional group, the B2 contains alkyl functional group, the B3 is orthosilicate, and a weight ratio of the siloxane compound B1 to the siloxane compound B2 is 1:10-20.

Description

technical field [0001] The invention relates to the field of pressure-sensitive adhesives, in particular to an acrylate pressure-sensitive adhesive, an adhesive sheet and a preparation method thereof. Background technique [0002] With the development of manufacturing industry, plastics and recycled plastics, especially thermoplastic polyolefins, have lower cost and stronger processability than metal materials used in the past, so they are widely used in automobile manufacturing, commercial signs and electronic equipment, etc. The field of application is getting wider and wider. However, this also poses a huge challenge to traditional bonding techniques, because these materials often have low surface energy and are relatively difficult to bond. Although rubber adhesives generally have good adhesion to low-energy surfaces, the low aging resistance of rubber often causes people to worry about their use. Due to the moderate cost and superior aging resistance of acrylate adhes...

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Problems solved by technology

However, this also poses a great challenge to the traditional bonding technology, because these materials often have low surface energy and are relatively difficult to bond

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