Preparation method of waterproof composite fabric

Abstract

The invention discloses a preparation method of a waterproof composite fabric. The composite fabric comprises a base cloth layer, an outer cloth layer and a film layer, wherein the two faces of the film layer are attached to the base cloth layer and the outer cloth layer through adhesives respectively; the film layer is obtained by extruding, forming, heating, stretching and annealing a film material; the film material is prepared from the following components in parts by weight: 85-100 parts of polytetrafluoroethylene resin, 10 to 20 parts of tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer; 5-15 parts of 1,4-trans polyisoprene rubber, 8-12 parts of a polymer of bis(4-fluorophenyl) ketone and 1,4-benzenediol, 2-10 parts of 1,4-benzenediol, 0.5-3 parts of potassium peroxydisulfate,0.5 to 5 parts of nanometer titanium dioxide dispersion slurry, 0.3 to 2 parts of 2-methyl-2-pentanol-4-one, 0.5 to 5 parts of sodium sulfosuccinate dioctyl ester, 0.2 to 3 parts of chlorofluorocarbon oil, 1 to 5 parts of a silane coupling agent and 15 to 30 parts of N,N-dimethylformamide. The composite fabric prepared by the method has good heat resistance, the heat conduction time is shortened,and the application prospect is wide.

Description

technical field [0001] The invention relates to a polytetrafluoroethylene film, in particular to a preparation method of a waterproof composite fabric. Background technique [0002] With the change of people's consumption concept and the continuous improvement of the quality of life, people pay more and more attention to the functional requirements of clothing and other textiles. own health. As the first element of clothing, fabric plays a vital role. [0003] For clothing used in special working environments, because it needs to face a variety of extreme environments, it is generally required to have heat insulation and waterproof functions, while traditional fabrics are mostly woven by knitting or woven, with good air permeability but poor waterproof performance. Poor, a layer of waterproof polyurethane coating is applied on the fabric, although the characteristics of poor waterproof performance are improved, but its waterproof performance usually decreases with the incr...

AI Technical Summary

Problems solved by technology

[0003] For clothing used in special working environments, because it needs to face a variety of extreme environments, it is generally required to have heat insulation and waterproof functions, while traditional fabrics are mostly woven by knitting or woven, with good air permeability but poor waterproof performance. Poor, a layer of waterproof polyurethane coating is applied on the fabric, although the characteristics of poor waterproof performance are improved, but its waterproof performance usually decreases with the increase of washing times, thereby reducing its service life

Images