Easy-stripped pressure-sensitive adhesive for stamping protecting film and preparation method for easy-stripped pressure-sensitive adhesive

Abstract

The invention discloses an easy-stripped pressure-sensitive adhesive for a stamping protecting film. The easy-stripped pressure-sensitive adhesive is prepared from the following ingredients in parts by weight: 55-65 parts of butyl acrylate, 10-15 parts of ethyl-2-hexylacrylate, 10-20 parts of methyl methacrylate, 1.5-3 parts of acrylic acid, 0.5-2 parts of hydroxylethylacrylate, 0.5-3 parts of 1,2-diallyl phthalate, 0.1-1 part of dioctyl adipate, 0.5-3 parts of triphenyl chlorosilane, 2-5 parts of polyoxypropylene mannitol dioleate, 0.1-1 part of 2,4-diphenyl-4-methyl-1-amylene, 0.05-0.5 partof benzyl dithiobenzoate, 0.2-0.8 part of ammonium tetraethyl hydroxide, 0.1-0.5 part of 3-amino-4-chloroacetanilide, 0.1-1 part of initiator, 0.1-0.5 part of buffering agent and 90-110 parts of deionized water. The pressure-sensitive adhesive has good external force resistance and can meet the requirements of a stamping process.

Description

technical field [0001] The invention relates to a pressure-sensitive adhesive, in particular to an easy-peelable pressure-sensitive adhesive for punching protective films and a preparation method thereof. Background technique [0002] At present, in the factory production of automobiles, household appliances and other fields, the metal stamping forming process has been widely used and formed a very mature process. During the metal plate stamping forming process, the processing environment has large tensile force, high friction force, local high temperature and other factors that cause the surface of the stamped product to be scratched, wrinkled or even cracked, which also reduces the service life of the mold. Therefore, in the stamping process , a protective film must be applied to the metal stamping parts to protect them. [0003] This type of stamping protective film is usually coated with a pressure-sensitive adhesive coating to adhere to the metal surface. However, the ...

AI Technical Summary

Problems solved by technology

In the process of metal plate stamping and forming, the processing environment has large tensile force, high friction force, local high temperature and other factors that cause the surface of the stamped product to be scratched, wrinkled or even cracked, which also reduces the service life of the mold. Therefore, in the stamping process , a protective film must be applied to metal stamping parts for protection

[0003] This type of stamping protective film is usually coated with a pressure-sensitive adhesive coating to adhere to the metal surface. However, the existing pressure-sensitive adhesive generally has the problem of insufficient cohesion. Surface cracking cannot meet the requirements of the stamping process

Images