High viscosity acrylic adhesive

Abstract

A high viscosity acrylic adhesive is provided, which is composed of acrylic resin polymer as a raw material, mixed with a defoaming agent, an anti-aging agent, etc. By preparing a cross-linked modified monomer containing multiple unsaturated vinyl substituents for acrylic resin polymer, a cross-linked network-like structure of acrylic resin polymer can be obtained. The cross-linked structure of acrylic resin polymer has higher internal stress and can exhibit better bonding performance. The cross-linked modified monomer structure contains many ether bonds generated by cycloaddition reaction, which can form hydrogen bonds with a substrate to enhance the bonding performance of the adhesive. The increase in crosslinking density can hinder the movement of the molecular chains of acrylic resin itself, and the rigid benzene ring structure and high bond energy silicon oxygen bonds in the crosslinked modified monomer structure can synergistically enhance the high-temperature resistance of the adhesive.

Dependencies are inferred from the claim text.