Structural pressure-sensitive adhesive, structural pressure-sensitive adhesive tape and preparation method of structural pressure-sensitive adhesive and structural pressure-sensitive adhesive tape

Abstract

The invention discloses a structural pressure-sensitive adhesive, a structural pressure-sensitive adhesive tape and a preparation method of the structural pressure-sensitive adhesive and the structural pressure-sensitive adhesive tape. The structural pressure-sensitive adhesive comprises a constituent A and a constituent B. The constituent A is obtained by polymerizing acrylic acid-2-ethylhexyl ester, butyl acrylate, vinylacetate, methyl methacrylate, acrylic acid, glycerol ester of hydrogenated rosin, dibenzoyl peroxide, ethyl acetate and epoxy resin in a reactor. The constituent A is coatedon a base material to manufacture a pressure-sensitive adhesive tape; the constituent B, which is polyfunctional organic amine epoxy hardener 2,4,6-tri(dimethylamino methyl)phenol, is painted on the surface of a pasted object; the pressure-sensitive adhesive tape is pasted on the surface of the pasted object to form the structural pressure-sensitive adhesive tape. The structural pressure-sensitive adhesive tape disclosed by the invention has pressure sensitivity at the beginning of use, and has the performances of structural adhesives at the later stage of use; the proportion of the tackinessagent A and the curing agent B is unnecessary to be determined, so the adhesive tape is convenient to use; in addition, the bonding strength is large, thus the structural pressure-sensitive adhesive tap is very suitable for field application.

Description

technical field

[0001] The invention relates to a pressure-sensitive adhesive and a pressure-sensitive adhesive tape, in particular to a two-component cross-linked structure type acrylate pressure-sensitive adhesive and a pressure-sensitive adhesive tape. Background technique

[0002] Pressure-sensitive adhesive is a type of adhesive that is sensitive to pressure. It is very convenient to use pressure-sensitive printed signs when pasting in the field. However, because road traffic signs are used outdoors , Long-term exposure to the sun, wind and rain, the pressure-sensitive adhesive is easy to age and lose its pressure sensitivity, causing the logo to peel off. However, the use of structural adhesives for bonding requires temporary glue application, which is inconvenient to operate. If structural pressure-sensitive adhesive is used, it can be easily pasted and has good weather resistance. Contents of the invention

[0003] The purpose of the present invention is to provi...