High-temperature-resistant UV visbreaking adhesive tape

Abstract

The invention belongs to the technical field of visbreaking adhesive tapes. The invention relates to a high-temperature-resistant UV visbreaking adhesive tape. The UV visbreaking adhesive tape comprises a release film layer, a UV visbreaking adhesive layer, a bottom coating, a flexible base material layer and a UV active coating which are sequentially arranged from bottom to top, and is characterized in that: the UV visbreaking adhesive is prepared from the following raw materials in parts by weight: 20-30 parts of cured resin, 25-35 parts of methacrylic acid and 5-9 parts of 2-hydroxyl-2-methyl-1-phenyl-1-acetone, 45-50 parts of diethylene glycol monovinyl ether, 0.5-1 part of azodiisoheptonitrile and 4-8 parts of a trimethylolpropane tri-crosslinking agent; after UV illumination, the stripping force can be reduced from original 1600 gf / 25mm to 20 gf / 25mm or below; the prepared adhesive tape has the advantages of no pollution, no residue, difficult precipitation, realization of high temperature resistance at 150 DEG C for 1h, substantial improvement of the initial adhesion of the glue, and suitableness for a plurality of coating modes; and the product obtained after coating of a prepared pressure-sensitive adhesive on a PET substrate and UV curing has excellent permanent adhesion, and has small high temperature increase.

Description

technical field [0001] The invention belongs to the technical field of adhesive tapes, in particular to a high temperature resistant UV adhesive tape. Background technique [0002] UV adhesive tape is widely used in wafer cutting, glass thinning and other fields. It can be firmly attached to materials such as silicon wafers, glass and stainless steel plates, and can effectively protect and bond transmission during cutting and etching processes. Function: After a short time of UV irradiation, the adhesion of UV adhesive tape is greatly reduced, and it is easy to tear off without residual glue. [0003] The traditional preparation method of UV viscosifying adhesive is usually realized by adding multifunctional UV resin to high-viscosity acrylic glue. This method has the characteristics of poor miscibility between resin and masterbatch, easy precipitation, and poor temperature resistance. Contents of the invention [0004] In order to solve the problems raised in the above-m...

AI Technical Summary

Problems solved by technology

[0003] The traditional preparation method of UV viscosifying adhesive is usually realized by adding multifunctional UV resin to high-viscosity acrylic glue. This method has the characteristics of poor miscibility between resin and masterbatch, easy precipitation, and poor temperature resistance.