Super-transparent acrylate pressure-sensitive adhesive emulsion capable of being coated at high speed as well as preparation method and application thereof

Abstract

The invention discloses super-transparent acrylate pressure-sensitive adhesive emulsion capable of being coated at a high speed. The super-transparent acrylate pressure-sensitive adhesive emulsion is prepared from the following raw materials in parts by weight: 60 to 90 parts of an acrylate soft monomer, 3 to 25 parts of an acrylate hard monomer, 0 to 10 parts of a functional monomer, 2 to 10 parts of a high-refractive-index monomer, 0 to 0.05 part of a molecular weight regulator, 0.1 to 0.8 part of a reactive anionic emulsifier, 0.1 to 0.5 part of a reactive non-ionic emulsifier, 0.02 to 0.1 part of a defoaming agent, 0 to 0.08 part of a base material wetting agent, 0.2 to 1.0 part of an initiator and water; the pH (Potential of Hydrogen) value of the pressure-sensitive adhesive emulsion is 7.5 to 8, and the solid content is 40 percent to 55 percent. The pressure-sensitive adhesive emulsion disclosed by the invention can be coated at the high speed (150m/min to 300m/min), and an adhesive surface has no defects including bubbles and the like; the stripping force is not lower than 2.0N/10mm, and the light transmittance can reach 90 percent or more; the super-transparent acrylate pressure-sensitive adhesive emulsion can be widely applied to protective adhesive films in the fields of manufacturing decoration, electronics, electrical appliances, automobile industries and the like.

Description

technical field [0001] The invention belongs to the field of pressure-sensitive adhesives, and in particular relates to a super-transparent acrylic pressure-sensitive adhesive emulsion that can be coated at a high speed and a preparation method and application thereof. Background technique [0002] The ultra-transparent acrylate pressure-sensitive adhesive that can be coated at high speed means that within the coating speed range of 150-300m / min, there is no residual adhesive on the surface of the adherend when it is peeled off from the adherend, and it maintains a certain mechanical strength. At the same time, it has high Light transmittance and low haze value. [0003] At present, the ultra-transparent acrylate pressure-sensitive adhesives that can be coated at high speed are mainly solvent-based acrylates. Solvent-type acrylate has excellent comprehensive properties, but it contains 50-70% of organic solvents such as toluene and ethyl acetate, which not only affects the ...

AI Technical Summary

Problems solved by technology

Solvent-type acrylate has excellent comprehensive properties, but it contains 50-70% of organic solvents such as toluene and ethyl acetate, which not only affects the health of operators, pollutes the environment, but also has high costs. This situation prompts people to urgently search for and Development of a new type of ultra-transparent pressure-sensitive adhesive that can be coated at high speed