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Poly(tetrafluoroethylene)PTFE fiber is not only the "king of plastics", it has occupied every corner of life

2019-04-12
Poly(tetrafluoroethylene)(PTFE) fiber fineness distribution range wide, fiber strength for 1. 37 cn/dtex, melting point at about 327 ℃, limit oxygen index was 95%, the coefficient of friction in 0. 2 of the left and right sides, fiber properties such as water contact Angle is about 120 °, make it is mainly used in the following five aspects.

(1) Application of Poly(tetrafluoroethylene) fiber in filtering materials
The bag filter developed by PTFE fiber has excellent temperature resistance, acid resistance, alkali resistance and oxidation resistance.Therefore, it can be used for filtration of high-temperature and high-humidity dust and corrosion-resistant gas. Poly(tetrafluoroethylene) filament after twisting, warping and weaving and other processes to prepare Poly(tetrafluoroethylene) fiber mesh cloth, composite sulfonic acid resin made of ion exchange membrane, is an essential key component of chlor-alkali engineering.

(2) Application of Poly(tetrafluoroethylene) fiber in aerospace and personal protection
Spacesuits are usually made up of undergarments, ventilation, insulation, air tight restraints, water cooling, insulation and tear protection.The limiting layer is made of polyamide fiber, polytetrafluoroethylene fiber or aramid fiber.The main material of tear proof layer is synthetic fiber, such as aramid, polytetrafluoroethylene fiber fabric.

(3) Application of Poly(tetrafluoroethylene) fiber in construction
PTFE woven fabric is used as the base cloth, and the surface composite PTFE film is used to prepare the membrane structure building material, which has good light transmission, can reduce the cost of lighting and air conditioning, good aging resistance, low friction coefficient surface is not easy to accumulate dust, light weight, shock resistance and non-combustion, etc..Can be used as outdoor stadium, arena, stadium, skating rink, swimming pool, large exhibition roof materials.

(4) Application of Poly(tetrafluoroethylene) fiber in the field of self-lubrication
PTFE fiber friction coefficient is very low, in the process of heavy load wear will form a PTFE transfer film between the inner and outer ring contact surface of the joint bearing, so as to significantly reduce the friction coefficient between the inner and outer ring of the bearing, extend the service life of self-lubricating joint bearing. Poly(tetrafluoroethylene) bearing with sliding lubrication, durability and good environmental adaptability and other characteristics, is widely used in the heavy load, maintenance-free, small size and light weight of the bearing industry.PTFE fiber bearings are used in food processing machinery, to a large extent to ensure food hygiene, eliminate lubricant pollution.

(5) Application of Poly(tetrafluoroethylene) fiber in medical and health care
PTFE yarn is made by pure inert, non-toxic, have very strong adaptability, can not cause the rejection of the body, no physical side effects to human body, can use any method of disinfection, with many microporous structure, which can be used for soft tissue regeneration of artificial blood vessels, and used in blood vessels, heart, general surgery and plastic surgery surgical sutures.