Zhihu, what's the best fabric for raincoats?

Materials and characteristics of raincoats: ptfe waterproof and breathable laminated fabric is composed of ptfe microporous membrane and ordinary fabric with special bead glue. The fabric has excellent waterproof, breathable, windproof and warm-keeping properties, which not only has outstanding performance, but also has the advantages of wide application range, flexible design and less pollution. Structure of Laminated Fabric Laminated fabric can adopt different structural designs and composite layers according to the needs of end use. Double-layer composite material can be a composite material of fabric and film, which adopts active structure; It can also be made up of Rico and film. It has a flexible surface structure and is easy to wash. It is suitable for civil sportswear and winter clothes. Three-layer composite is a composite of fabric, film and Rico. Although it feels a little hard, it can improve the wear resistance and is suitable for military combat clothes and labor protection clothes. Four or more layers can increase the functionality of laminated fabric, and can be used as gas barrier layer, liquid barrier layer, antiviral material and far infrared cotton thermal insulation material. Noodles and Rico fabrics should have a certain density to prevent glue from oozing out. In order to control the total weight of laminated fabrics, fine denier polyester or nylon should be used as far as possible for flour and lining. According to the use requirements, functional fabrics such as camouflage, flame retardant, antistatic, oil-repellent and water-repellent, easy to remove, acid and alkali resistant, etc. Application of waterproof and breathable fabric ptff waterproof and breathable laminated fabric was first developed for making military uniforms and protective clothing, and later used for making sportswear, tents and other items. At present, the application field is still expanding. For air force pilots, navy soldiers and special forces, sudden immersion in cold water leads to hypothermia, which is one of the important factors causing casualties. The U.S. military has designated waterproof and breathable clothing as special riot-proof clothing for air force pilots, crew members and special forces performing land, sea and air combat missions. This kind of clothing can provide protection for up to 2 hours in 7 degrees cold water, and it is light and comfortable to wear. The main technical performance requirements of military raincoats are good waterproof and breathable function and light weight. Ptfe microporous composite fabric not only solves the contradiction between air permeability and water resistance, but also reduces the weight of raincoats, thus effectively reducing the load of soldiers. For fire-fighting clothes, the surface is woven aramid cloth, the film is made of ptfe, Rico is made of warp knitted aramid fabric, and the desiccant is phosphorus-containing polyurethane. And the wearing comfort of the protective clothing is improved. Military light tents are required to be rain-proof, flame-retardant and aging-resistant, and PTFE film materials have the characteristics of corrosion resistance, strong acid and alkali resistance and aging resistance, so PTFE laminated fabrics can be used. Sleeping bags are required to be warm, breathable and light in weight. According to the characteristics of ptfe microporous membrane laminated fabric, it adopts double-layer structure, with nylon fabric as the outer layer and P fe membrane as the inner layer. There is no danger of hypoxia and carbon monoxide poisoning when using this sleeping bag. PTFE has excellent chemical corrosion resistance and flame retardancy, and is an ideal material for developing nuclear, biochemical and protective clothing. Its microporous structure makes it more waterproof (liquid) and breathable. Polytetrafluoroethylene waterproof breathable laminated fabric can not only meet people's needs in harsh environments such as cold, rain, snow and windy weather, but also meet people's daily requirements for raincoats and shoes, and has broad application and development prospects. In the future, the research and development of PTFE waterproof and breathable composite fabrics will focus on reducing costs and making the fabrics more lightweight, comfortable and multifunctional.