Water-borne acrylate pressure-sensitive adhesive, preparation method and pressure sensitive adhesive tape

Abstract

The invention discloses a water-borne acrylate pressure-sensitive adhesive, a preparation method and a pressure sensitive adhesive tape. The water-borne acrylate pressure-sensitive adhesive is prepared from the raw materials of a hard monomer, a soft monomer, a functional monomer, an initiator, a solvent and a chain transfer agent, wherein the hard monomer accounts for 25-35 percent of the total mass of the monomers; the soft monomer accounts for 35-50 percent of the total mass of the monomers; the functional monomer accounts for 25-35 percent of the total mass of the monomers; the use amount of the initiator is 1-2 percent of the total mass of the monomers; a ratio of the use amount of the solvent to the total mass of the monomers is 2 to 3 - 3 to 2; the use amount of the chain transfer agent is 1-7 percent of the total mass of the monomers. By researching a polymerization technique and monomer composition, the cohesive strength and temperature resistance of the water-borne acrylate pressure-sensitive adhesive are improved, and an adhesive drop-off risk of a protective film product in an actual use process is reduced.

Description

technical field [0001] The invention relates to the field of pressure-sensitive adhesives, and mainly relates to a water-based acrylate pressure-sensitive adhesive, a preparation method and a pressure-sensitive adhesive tape. Background technique [0002] Laminating glue, also known as overplastic, is a special adhesive for dry lamination between paper and plastic film or plastic film. In recent years, due to the vigorous development of the packaging industry in my country, the market demand for laminating adhesives is increasing day by day. According to statistics, the annual consumption of domestic laminating adhesives has reached tens of thousands of tons. Therefore, the greening of plastic flexible packaging products has become an inevitable development trend, which requires the use of environmentally friendly laminating adhesives to manufacture flexible packaging materials. With the increasingly stringent environmental regulations and the gradual enhancement of people'...

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Problems solved by technology

[0004] Acrylic pressure-sensitive adhesives are divided into two categories: solvent-based and water-based. Although water-based pressure-sensitive adhesives still have some defects in performance, such as poor water resistance, they hav

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