Quick-stick water-resistant adhesive for low-temperature production of corrugated board and preparation method of quick-stick water-resistant adhesive

Abstract

The invention provides a quick-stick water-resistant adhesive for low-temperature production of a corrugated board. The quick-stick water-resistant adhesive is characterized in that water, a filler, polyvinyl alcohol, emulsified silicone oil, aluminum potassium sulfate, a cross-linking agent, a TL water-resistant agent, Kathon and sodium hexametaphosphate react according to a certain ratio, a certain process and requirements to form the quick-stick water-resistant adhesive. A cross-linking reaction between polyvinyl alcohol and the cross-linking agent is mainly adopted to generate certain initial adhesiveness and water resistance; then the TL water-resistant agent is added to further improve the water resistance of the adhesive, and different water-resistant requirements can be satisfied according to consumption; and the filler can improve the solid content of the adhesive and reduce the moisture content of the adhesive, so that the drying speed of the adhesive can be improved during production. The quick-stick water-resistant adhesive has the advantages of wide applicability, strong initial adhesiveness, low cost, excellent water resistance and the like, and meets the demand for low-temperature production of a corrugated board production line.

Description

technical field [0001] The invention relates to the field of polymer material adhesives, in particular to a fast-bonding water-resistant adhesive used for low-temperature production of corrugated cardboard and a preparation method thereof. Background technique [0002] At present, most of the adhesives used in the production of paper products such as corrugated cardboard, honeycomb cardboard, and cartons are starch adhesives, polyvinyl alcohol modified adhesives, white latex, etc. Starch adhesives have a wide range of raw materials and a simple glue-making process. , starch, alkali, borax, oxidizing agent, stabilizer, etc., according to a certain proportion and a certain order of stirring reaction, but in the actual use process, there are slow drying speed, slow speed, poor water resistance, and the corrugated cardboard produced is easy to get damp Softening, resulting in a decrease in bond strength and a decrease in edge pressure strength. Another prominent disadvantage of...

AI Technical Summary

Problems solved by technology

The invention adopts the self-emulsification method, and utilizes polyester polyol, emulsifier, diisocyanate, dibutyltin dilaurate, and diol as the main raw materials to synthesize a single-component water-based polyurethane adhesive specially used for bonding water-resistant corrugated cardboard, although The adhesive has strong adaptability to the adhered materials, good water resistance, and can be cured at room temperature, but it cannot be widely used because of its high cost