Aqueous emulsion type nm adhesive for paper or plastics and its preparing process

Abstract

An emulsion-type paper-plastic adhesive is prepared from emulsion base material (40-70 wt.%), viscosity increaser (25-50) and nm inorganic powder (5-15). The emulsion base material contains butyl acrylate (25-60 wt. portions), vinyl acetate (20-50), acrylic acid (0-10), hydroxypropyl acrylate (5-15), PVA (2-8) ammonium persulfate (0.8-3.2), emulsifier OP-10 (0.3-3), sodium laurylsulfate (0.3-3) and water (80-207). Its advantages include no poison, excellent resistance to low temp., high temp and water, good adhesion, and fast drying.

Description

technical field [0001] The invention relates to a non-toxic, emulsion-type nano paper-plastic adhesive with excellent comprehensive performance and a preparation method thereof. Background technique [0002] Paper-plastic adhesives are widely used in the printing and packaging industry, such as the bonding of packaging boxes, hand bags, stationery and handicrafts. At present, there are two main types of paper-plastic adhesives on the market: one is solvent-based (mainly using toluene as a solution), and the other is water-emulsion type (emulsion type). Solvent-based adhesives are mainly SBS glue and EVA glue. Among them, SBS glue has good frost resistance and punching resistance, but has disadvantages such as poor aging resistance, rapid adhesion decline, and poor high temperature resistance. EVA glue has excellent aging resistance and ink affinity, but its main disadvantages are poor frost resistance, stamping resistance, and high temperature res...

AI Technical Summary

Problems solved by technology

Water-emulsion paper-plastic adhesives are favored for their safety and non-toxicity, especially polyvinyl acetate water-emulsion adhesives, but their shortcomings are water resistance, moisture resistance, high and low temperature resistance, initial tack and The adhesion is poor, and there is also a water-emulsion adhesive made of acrylate as a polymerized monomer. Although it has excellent low temperature resistance, broad adhesion and water resistance, its initial viscosity and high temperature resistance poor

In general, the existing water-emulsion paper-plastic adhesives generally have disadvantages such as poor initial tack, long drying time, and poor high temperature resistance.