What exactly is PTFE membrane? What’s the use again?
Nuclear, biological and chemical protection materials
Protective materials to protect against toxic chemicals usually consist of multiple layers of fabrics, including “gas resistance layer” fabrics that adsorb, absorb, detoxify or react with toxic gases, and “liquid resistance layer” that prevents harmful liquids from contacting the human body. “Fabric, the former is generally breathable, and the latter has two types: breathable and non-breathable depending on the fabric used. When using stain-repellent finishing to finish the fabric, although the fabric is breathable, aerosols and particles will pass through the fabric, and special objects will pass through with very little pressure, so the protective effect is poor; not only will aerosols and particles pass through the fabric, but also Liquid will pass through at a very small pressure, so the protective effect is poor; when using non-breathable PU coated fabric, the user will feel uncomfortable because the water vapor cannot be discharged. The PTFE laminate membrane has the characteristics of selective water vapor permeability and can be used as a nuclear, biological and chemical protection material. This kind of protective clothing can simultaneously have multiple functions such as water blocking, breathability, wind blocking, and nuclear, biological and chemical protection. Traditional thermal underwear is made of polyethylene or polypropylene film laminated with felt. This type of film is completely airtight and cannot drain body sweat. The three-layer fabric of knitted fabric and non-woven fabric of polytetrafluoroethylene film can be used in thermal underwear. The underwear has the advantages of breathability, wind resistance, and warmth retention. And the polytetrafluoroethylene film is covered on functional fabrics, such as anti-static fabrics. This new fabric not only has the original characteristics of the polytetrafluoroethylene film, but also adds important anti-static functions. As a result, many This new type of fabric can be used in various workplaces, such as extremely cold environments and water-repellent environments. It brings a greater safety and convenience environment for our work and production.
All-weather casual workwear
PTFE three-layer fabric has water-repellent, breathable, wind-blocking and other functions, which greatly improves the comfort and functionality of casual workwear.
Special work clothes
Used in work clothes for medical staff, it can effectively prevent contamination of body fluids. Three layers of fire-resistant fabrics can be used to make fire-resistant work clothes.
Shoe materials
Adhere fabric or other porous outer material and polytetrafluoroethylene film together, and maintain its microporous structure to obtain a water-repellent and breathable upper. Standard tests have found that the air permeability of the upper is eight to ten times that of conventional PU coated water-blocking uppers. This kind of upper can also adopt different fabrics, structures, colors, etc. according to needs. It can give the shoes the following functions: water resistance, breathability, wind resistance, particle barrier, antibacterial properties, etc. In addition, the lining composed of polytetrafluoroethylene film can also be joined with genuine leather to make various water-blocking leather shoes (boots) with beautiful appearance. Therefore, PTFE three-layer fabric can be widely used in many aspects such as military shoes, civilian shoes, fashion shoes (boots), etc.
Filter material
PTFE film has a porosity of up to 80% and an average pore diameter of 0.2mm. It has dimensional stability, chemical resistance and high and low temperature resistance, making it occupy an important position in the application field of filter materials. . PTFE membrane filter materials have been widely used in flue filtration and hot air filtration in chemical plants, power plants, carbon black plants, cement plants, spray paint plants, etc. It can remove dust, resist the chemical erosion of smoke, and can recycle valuable materials. The membrane can also be used for filtration of certain liquids. Others
PTFE three-layer fabric is currently the best water-repellent and breathable fabric in the world in all aspects. Judging from the progress abroad, it has been used in military protective clothing in extremely cold areas, civilian tents, ski suits, space suits, all-weather casual wear, gloves, medical surgical gowns, etc.
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