Paper-plastic compound adhesive and preparation method thereof

Abstract

The invention belongs to the technical field of adhesives and particularly relates to a paper-plastic compound adhesive. The paper-plastic compound adhesive is prepared from the following components in percentage by weight: 15%-35% of butyl acrylate, 10%-20% of vinyl acetate, 5%-10% of methyl methacrylate, 4%-10% of acrylamide, 1%-5% of methylene succinic acid, 0.1%-1% of sodium hydroxide, 20%-50% of deionized water, 0.2%-2% of an emulsifier, 0.5%-2% of an initiator, 1%-3% of a neutralizing agent and 0.05%-0.2% of aqueous ammonia. The invention further provides a preparation method of the paper-plastic compound adhesive. Compared with the prior art, on the one hand, the added initiator is non-toxic and high in initiation efficiency, and the added neutralizing agent has a relatively small effect on the system stability, so that the prepared adhesive has relatively high stability; on the other hand, the components in the adhesive cooperate with one another, and the adhesive strength of the adhesive is improved.

Description

technical field [0001] The invention belongs to the technical field of adhesives, in particular to a paper-plastic composite adhesive and a preparation method thereof. Background technique [0002] Paper-plastic composite is a layer of plastic film on the surface of paper-based printed matter. It is a commonly used composite material in the printing industry. It combines the advantages of paper and plastic. It is waterproof, durable and highly decorative, so that the text and patterns are effectively protected. . [0003] Adhesives are mainly made of bonding substances, and are formulated with various curing agents, plasticizers, fillers, solvents, preservatives, stabilizers and coupling agents. With the continuous development of polymer synthetic materials, various paper-plastic composite glues continue to emerge, but most of these composite glues are thermal packaging glues, which often need to be heated when used, and there are toxic solvent residues, and the bonding str...

AI Technical Summary

Problems solved by technology

With the continuous development of polymer synthetic materials, various paper-plastic composite glues continue to emerge, but most of these composite glues are thermal packaging glues, which often need to be heated when used, and there are toxic solvent residues, and the bonding strength is not high. The strength of paper-plastic composite packaging material is not enough

[0004] At present, the paper-plastic composite adhesives sold in the market have low bonding strength and poor stability, which seriously restricts the development of my country's packaging industry.

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