An acrylic two-component adhesive cured at room temperature

Because of its fast curing speed, high efficiency, strong adhesion, and other advantages, the two-component adhesive has a wide range of applications in construction, wood processing, decoration, automobile, shoemaking, textile, packaging, electronics, printing, and other fields.

However, with the improvement of environmental protection and safety laws and regulations and the gradual strengthening of people’s health and safety awareness, the safety and environmental protection of adhesive materials are also put forward higher requirements. At present, most of the two-component gum components contain bisphenol a-type epoxy resin.

For example, the United States patent US4426243 describes A normal temperature curing acrylic two-component curing adhesive, in which a large number of bisphenol A type epoxy resin is used. Patent CN201910530105.0 invented A kind of high-temperature resistance, fast-curing acrylic two-component adhesive, in the B component also a large number of EP828 bisphenol a type of epoxy resin, although the product performance has been significantly improved, but in the use of health and safety risks, and can not be used in food packaging, toys, and other fields, Limit its application.

Therefore, it is imperative to develop A high-performance adhesive of environmental protection, safety, and bisphenol A free material. Therefore, a kind of normal temperature curing acrylate two-component adhesive was proposed to solve the above problems.

In order to achieve the above purpose, the following technical scheme is specifically adopted: an acrylate two-component adhesive comprises of group A and group B, respectively consisting of the following substances according to the percentage of weight: 40 -65% (meth) acrylate monomer, 10 -20% acrylic modified epoxy resin, filler 10-4 -10% 15%, methyl acrylate, promoter 0. 9- 1. 8%, stabilizer, 0. 1 -0. 2%; Group B: polyether type glycidyl ether epoxy resin 20-10-20% 45%, the viscosity resin, plasticizer, 10-25%, 30-40% benzoyl peroxide, packing 5-10%; The volume ratio of the dosage of group A to that of group B is 10:1.