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PTFE Composite Fabric: The Latest Textile Composite Technology for Waterproof, Breathable, Windproof, and Insulating Fabric Products. PTFE composite fabric is the successful result of the latest textile composite technology, offering waterproof, breathable, windproof, and insulating properties. Some of these fabrics are exceptionally durable, with a thin film that prevents water from penetrating under any circumstances. Whether it's subjected to multiple washes, folds, or wear and tear, the fabric's unique waterproof, breathable, windproof, and insulating qualities remain unchanged. It will continue to protect you for years while being environmentally friendly, making it increasingly popular in advanced countries like Europe, the USA, Japan, and more.
Polytetrafluoroethylene (PTFE), commonly known as the "plastic king," is a high-polymer compound formed through the polymerization of tetrafluoroethylene. It boasts excellent chemical stability, corrosion resistance, sealing properties, high lubrication, non-stickiness, electrical insulation, and good resistance to aging. Expanded PTFE membrane is a microporous thin film produced using a special process.
Waterproof performance refers to the ability of the fabric's outer layer to repel water and prevent it from penetrating the interior. Even under 80lb/m² of pressure, PTFE laminated fabric remains waterproof. Wearing clothing made from this fabric, even in the midst of heavy rain and wind, or sitting on a wet surface, will keep you dry. The fabric's remarkable waterproofing capabilities are primarily due to the micro-pore size of the EPTFE membrane, which is 1/5,000 to 1/20,000 the diameter of a water droplet, ensuring even the smallest raindrops cannot pass through. Water droplets cannot spread on the EPTFE membrane's surface, preventing them from passing through.
EPTFE membrane offers excellent breathability, allowing it to transport moisture produced by the human body to the microclimate outside, preventing water vapor from condensing into liquid water and reducing heat conduction. Despite the abundance of micro-pores on the film's surface, it effectively prevents wind from penetrating, thus preventing air convection. Tests have shown that in winds of 25 m/s, PTFE composite fabric provides 30% to 40% better insulation than traditional down jackets.
EPTFE membrane offers excellent isolation of bacteria or viruses. With small pore sizes, it can block the entry of certain toxic gases or aerosols and low surface energy can prevent the penetration of some toxic liquids. By coating the side of the film with a material with high water vapor flux but no pores, selective permeation of water vapor is achieved for full protection. PTFE composite fabric is used in the production of nuclear and biochemical protective clothing, which provides functions such as waterproofing, breathability, wind resistance, and protection against nuclear and biochemical hazards.
Given the exceptional performance of Expanded PTFE membrane mentioned above, it is widely used in military clothing, medical clothing, casual clothing, special protective clothing for firefighting, chemical protection, immersion operations, outdoor sports clothing, and accessories such as shoes, hats, gloves, as well as materials for sleeping bags, tents, rain gear, and more.