Novel hot-melt pressure-sensitive adhesive for waterproof materials and preparation method thereof

Abstract

The present invention relates to the technical field of hot melt adhesives, specifically, to a hot-melt pressure sensitive adhesive used in a waterproof material and a preparation method therefor. By a weight percentage, the hot-melt pressure sensitive adhesive comprises the following components: a thermoplastic elastomer of 30-40%, tackifying resin of 30-50%, rubber softening oil of 15-30% and an auxiliary agent of 0.3-1%. The preparation method comprises: adding the thermoplastic elastomer, the tackifying resin, the rubber softening oil and the auxiliary agent respectively into a closed container, heating and stirring in a condition of 180 degrees centigrade until even, and standing to obtain the hot-melt pressure sensitive adhesive. A purpose of the present invention is to provide the hot-melt pressure sensitive adhesive used in the waterproof material and the preparation method therefor. The hot-melt pressure sensitive adhesive has good low-temperature resistance and good adhesion performance, is safe and environmentally-friendly, and has very good utility value.

Description

technical field [0001] The invention relates to the technical field of pressure-sensitive adhesives, in particular to a novel hot-melt pressure-sensitive adhesive used for waterproof materials and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesives and their products have developed rapidly in the past two decades, and their applications have spread throughout various fields of the national economy and have entered thousands of households. However, in the application of basic research and technology development of pressure-sensitive adhesive products, There is still a big gap between China and developed countries. Some high-performance pressure-sensitive adhesive products still rely on imports from developed countries. Pressure-sensitive adhesives that can be used in the waterproof industry must have high and low temperature resistance, UV resistance and water immersion resistance, and must be compatible with Sheets and cement concrete hav...

AI Technical Summary

Problems solved by technology

[0002] Pressure-sensitive adhesives and their products have developed rapidly in the past two decades, and their applications have spread throughout various fields of the national economy and have entered thousands of households. However, in the application of basic research and technology development of pressure-sensitive adhesive products, There is still a big gap between China and developed countries. Some high-performance pressure-sensitive adhesive products still rely on imports from developed countries. Pressure-sensitive adhesives that can be used in the waterproof industry must have high and low temperature resistance, UV resistance and water immersion resistance, and must be compatible with Sheets and cement concrete have good bonding properties. The pressure-sensitive adhesives used for waterproof materials at this stage are most commonly used for high and low temperature, low water resistance, insufficient weather resistance, and insufficient low temperature resistance in construction applications. It will affect the winter construction in some places, and the adhesive layer may break; in the summer construction, the high temperature resistance is not enough, and the adhesive layer will flow, which will affect the bonding effect. If the water resistance is not enough, water channeling may occur. At the same time UV resistance is also an important indicator, and the membrane needs to take into account the aging phenomenon caused by sunlight during construction