1. PTFE clothing film
Based on the pore forming characteristics of polytetrafluoroethylene (PTFE) plastic resin, a microporous film was prepared by biaxial stretching method. The membrane surface can reach more than one billion micropores per square centimeter, and the diameter of each micropore is (0.1 μ m-0.5 μ m) Specific water molecular diameter (20 μ m-100 μ m) Several hundred times smaller than water vapor molecule (0.0003 μ m-0.0004 μ m) It is tens of thousands of times larger, so that water vapor can pass through, but water droplets can not. The use of this microporous structure can achieve excellent waterproof and moisture permeability; In addition, because the hole is extremely small and longitudinally irregularly curved, the wind cannot penetrate, so it has the characteristics of wind resistance and warmth retention. After being compounded with other fabrics, it is widely used in military clothing, medical clothing, leisure clothing, special protective clothing for fire protection, poison prevention, water immersion operations, outdoor sports clothing, shoes, hats, gloves and other accessories, as well as sleeping bags, tents, rain gear and other materials.
2. PTFE air filter membrane
The PTFE microporous membrane can be used for atmospheric dust removal and air purification by virtue of its unique node fiber, smooth surface, chemical resistance, air permeability, high air permeability, flame retardancy, high temperature resistance, strong acid and alkali resistance, non-toxic and other characteristics. The product made of the membrane has high filtration efficiency, up to 99.99%, close to zero emission; Low running resistance and fast filtering speed; Long service life, reusable, thus reducing operating costs. It is mainly used for flue gas filtration of various industrial furnaces in chemical industry, iron and steel, metallurgy, carbon black, power generation, cement, garbage incineration, etc. PTFE filter membrane, the pore diameter of which can be controlled within 0.2~15 μ M, the porosity can reach more than 85%.
3. PTFE air purification membrane
The air purification membrane is made of polytetrafluoroethylene, which is expanded and stretched to form a microporous membrane. The membrane is coated on various fabrics and substrates with a special process to become a new filter material. The pore diameter of the membrane is small (0.05~0.45 μ m) With uniform distribution and large porosity, it can filter all dust particles including bacteria while maintaining air circulation to achieve the purpose of purification and ventilation. It is widely used in pharmaceutical, biochemical, microelectronic, laboratory consumables and other fields.
