Special fluorine protective microporous film and its application in special warfare clothing

Abstract

The invention discloses a fluorine polymer white opaque mixture for making special warfare protective microporous films, which is characterized in that the fluorine polymer white opaque mixture is prepared through the following process, including: first Molecular weight polytetrafluoroethylene copolymer dispersion resin emulsion, polyurethane emulsion and polyfluorinated alkyl acrylate emulsion, with the dry weight of (60%~80%):(15%~25%):(5%~15%) Specific blending, and then diluting the blend with deionized water to form a blended emulsion with a solid content of 10-20%, and then stirring at a high speed to break the emulsion, coagulate, and dry to obtain the special fluorine polymer white opaque mixture. Then the mixture is blended with lubricating oil, and after an expansion process, a special fluorine protective microporous film is obtained, which has high physical and mechanical strength, high pressure rebound rate, waterproof, oil resistance, and high pollution resistance. The porous film can meet the application requirements of higher performance of waterproofing and preventing the intrusion of toxic and harmful liquids, higher air permeability and moisture permeability, and better sealing effect at the sewing line. When it is applied to special combat uniforms, it is light and has high protection performance against water and toxic and harmful liquids, comfortable, warm and breathable, which can greatly enhance the combat effectiveness of soldiers.

Description

technical field The present invention relates to film materials for special warfare clothing used by special forces, in particular to a special fluorine protective film and its application on special warfare protective clothing for special forces, and is also suitable for the compounding of protective breathable films and clothing fabrics for land, sea and air fighters application of materials. Background technique Fluorine polymers, especially tetrafluoroethylene homopolymerization, modification, or copolymerization polymer resins have excellent physical, mechanical and chemical stability, and are widely used in chemical materials, mechanical electronics, aerospace, military protection, new materials and new It has a wide range of applications in various fields such as energy. The high-molecular-weight polytetrafluoroethylene homopolymer dispersion resin is extruded and deoiled by paste extrusion, and then stretched in one or two directions to obtain microporous and breath...

AI Technical Summary

Problems solved by technology

However, such products still cannot meet the needs of cutting-edge special warfare forces, and their water pressure resistance effect cannot meet the clothing application requirements of special warfare forces. When it is used in aerospace and navigation, its waterproof performance still needs to be improved.

CN1373792A patent mentions a transparent elastomer composition obtained by coagulation of fluororesin particle emulsion with an average particle size of 20-150nm and elastomer particle emulsion, in which fluororesin particles are uniformly dispersed in the elastomer Since the fluororesin particles are uniformly and finely dispersed in the elastomer in advance, it is possible to provide elastomer molded articles with excellent mechanical strength, abrasion resistance, and transparency. Small, the molecular weight is not high enough to be expanded into fluorine microporous film