Preparation method of reactive polyurethane hot melt adhesive for fabric lamination

Abstract

The invention relates to a preparation method of a reactive polyurethane hot melt adhesive for fabric lamination, relates to a reactive polyurethane hot melt adhesive, and belongs to the technical field of polyurethane hot melt adhesive preparation. The reactive polyurethane hot melt adhesive for fabric lamination is prepared by the following steps: heating and melting polyester polyol, polyetherpolyol, a chain extender, an adhesive force accelerant and an antioxidant and mixing uniformly, drying in vacuum for dewatering, adding isocyanate, a catalyst and a silane coupling agent, and reacting under nitrogen protection. The prepared reactive polyurethane hot melt adhesive for fabric lamination has the characteristics that: after being heated, the hot melt adhesive becomes molten thick state because of physical crosslinking generated under the action of hydrogen bonds, and then becomes original physical property after being cooled; the hot melt adhesive not only has excellent enzyme bacteria resistance, higher adhesion strength and good flexibility, water resistance, waterproof and moisture permeable properties and the like, but also does not contain volatile organic solvents, has excellent environmental friendliness, and is suitable for the lamination of various fabrics and the lamination of fabrics and waterproof and moisture permeable thin films.

Description

technical field

[0001] The invention relates to a method for preparing a reactive polyurethane hot-melt adhesive for fabric compounding, which relates to a reactive polyurethane hot-melt adhesive and belongs to the technical field of polyurethane melt adhesive preparation. Background technique

[0002] With the progress of society and the improvement of living standards, consumers have higher and higher requirements for dress. Apparel fabrics are developing in the direction of lightness, comfort and aesthetics, and are particularly favored for functional clothing such as anti-wrinkle, waterproof, moisture-permeable, windproof, warm-keeping, and anti-static, prompting manufacturers to adopt various new technologies and processes to improve various aspects of clothing fabrics item performance. In recent years, composite fabrics have been widely used in garment enterprises, and new fabrics have come out continuously, meeting people's requirements for clothing comfort and diver...

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