PTFE Coating Gives Outside Sportswear Capacity of Waterproof & Drinking water Vapor Permeability

Besides the strength and skills of the anticipants themselves, outdoor activities also require the outdoor sportswear be capable to adapt to bad weather and complex geographical conditions in order to protect the personal safety of their owner. By way of the factors of sports and outdoors, the requirements for outdoor sportswear are comparatively more strict. In outdoor activities, there exists much more heat and sweat produced, so the clothes must have good heat dissipation and water vapor permeability; there'll be rainy, windy, snowy or foggy days in the open air, so the clothes must be water-proof.

The ability to resist drinking water and to dissipate heat created by the body in the same time is hard to be obtained. Luckily, the sweat produced by body of a human is water vapor of single molecule state, while the rain and snow is liquid water drops in the state of aggregation. Volume of these two sorts of h2o differs a lot. Besides, liquid h2o has a characteristic called rod mill which happens to be the characteristic to aggregate itself in volume. If you mix a drop of detergent with a drinking water drop, the drinking water drop will scatter flatly immediately because the detergent can lower its surface tension.

Sportswear of waterproof ability and drinking water vapor permeability perfectly makes use of this characteristic of water, surface tension. It applies PTFE (same chemical component but different physical structure with Polytetrafluor ethylene, PTFE, best corrosion resistance) coating on the surface of the fabric to boost the surface tension of the fabric in order that the h2o drops keep themselves together instead of scattering and infiltrating into the surface. In this way, drinking water drops will not be prepared to go through the clothes. Meanwhile, this PTFE coating is porous so the h2o vapor of single molecule state can with success move through the tiny holes in the fabric and be dissipated to the surface of the clothes.

After large sum of movement, if we stop to rest in the rod mill, there may be h2o drops inside our clothes since it's cold outdoors and the sweat cannot be dissipated in time. It will make us feel not so comfortable. There exists a kind of film of polyurethane (PU) and nano-ceramic powder which is often coated on the surface of the fabric so to absorb the sweat vapor when we are sweating. This coating will prevent the water vapor inside the clothes from turning into water drops because the drinking water vapor has surpassed the saturated vapor pressure.

Besides this characteristic, PTFE has other special functions. To illustrate, since PTFE has low-loss and small dielectric constant, PTFE film is becoming the perfect insulation material to make capacitors, insulated cables and transformers. PTFE film is also one of many indispensible materials of making electronic components in aviation and space industry, etc. Many characteristics of PTFE make PTFE be vastly applied in lots of fields like chemical engineering, petroleum, medicine, electronics and machinery.