Thermal activation type paper adhesive with high biodegradation rate and preparation method thereof

Abstract

The invention discloses a thermal activation type adhesive with a high biodegradation rate for paper and a preparation method of the thermal activation type adhesive with the high biodegradation rate for the paper. Comprising 25-40 g of polyvinyl alcohol (PVA), 15-25 g of polycaprolactone, 15-25 g of hydroxypropyl starch, 5-10 g of glycerin, 1-2 g of polyaspartic acid, 1-2 g of citric acid, 0.5-1 g of lauryl sodium sulfate (SDS), 0.1-0.5 g of an organic silicon defoaming agent and 100-150 g of deionized water, and has the following effects that the adhesive can be completely biodegraded, and the 28-day biodegradation rate is larger than or equal to 70%; the coating has a thermal activation characteristic, and can be re-adhered after being dried and stored after being coated and heated; and the adhesive has high bonding strength and is suitable for firm bonding between paper sheets.

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