Aqueous dual membrane glue, and fabricating method

Abstract

This invention discloses a method for preparing a water-borne laminating adhesive. The adhesive is composed of: monomers including acrylic acid and methyl methacrylate, functional monomers including diallyl phthalate, hydroxyethyl acrylate, diallyl maleate and N-hydroxymethylacrylamide, initiator ammonium perdulfate, emulsifiers including sulfosuccinic acid and phenol ether sulfuric acid, buffers including sodium bicarbonate and ammonium bicarbonate, lauryl mercaptan, functional accessory materials including OT-75, mineral oil and water-soluble acrylic resin, pH regulator ammonia solution, and soft water. The adhesive has such advantages as no pollution, no toxicity, high safety and high cohesive force.

Description

technical field [0001] The invention relates to a laminating adhesive applied to the bonding of paper-plastic composite materials, in particular to a water-based laminating adhesive and a manufacturing method thereof. Background technique [0002] With the rapid development of the packaging industry, paper-plastic composite materials are more and more widely used in our daily life. [0003] Adhesives used in paper-plastic composites are divided into two types: oily and water-based, but the toxicity and safety problems of oil-based glue are becoming more and more prominent. The health of workers is seriously damaged, and a large amount of volatilization during the drying process can easily cause fires. It is the general trend to replace oil-based glue with water-based glue in the laminating industry. [0004] Although water-based glue is safe and environmentally friendly, its synthesis technology is difficult and the cost of raw materials used is relatively high, which is m...

AI Technical Summary

Problems solved by technology

Expensive sales price, it is very difficult to promote in our country

For this reason, China has recently introduced a water-based laminating adhesive blended with PVA emulsion and tackifying resin. Although it solves the problems of toxicity and flammability, its performance still cannot reach the level of oil-based adhesives and can only be used for some adhesives. Low-end products

From the perspective of the market's requirements for the packaging industry, it is hoped that the quality of laminating products will be further improved. From a technical point of view, the oil-based adhesives commonly used in China cannot meet these requirements of users, and the domestic low-grade water-based adhesives cannot meet these requirements.