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Why Fluoropolymer, not others
- Jun 16, 2018 -

     Fluoropolymer plays a more and more important role in industry such as IT, automobile and so on for its excellent properties of self-flame retardancy, self-cleaning, corrosion resistance and high temperature resistance. In some fields, fluoropolymer has even become the best choice for users. Fluoropolymer is a straight chain alkane polymer in which some or all of the hydrogen atoms in the molecular structure are replaced by fluorine. Fluoropolymers have very high chemical resistance, barrier, high temperature resistance and good electrical properties, and do not absorb moisture, friction coefficient is very low, and weathering resistance is good. These properties make fluoropolymer the preferred material for heat-resistant cables, chemical linings, gaskets, pipes, filters, valves, pumps and electronic components, coating materials, and weathering films.

 

      There are many kinds of fluoropolymer, including ethylene tetrafluoroethylene copolymer (ETFE), PTFE (tetrafluoroethylene), polytetrafluoroethylene (PTFE), perfluoroethylene-propyl copolymer (FEP), perfluoroalkoxy resin (PFA), polychlorotrifluoroethylene (PCTFE), ethylene trifluoroethylene co-polymer (ECTFE), polyvinylidene fluoride (PVDF) and polyfluoroethylene (polyfluoroethylene). Leading global suppliers of fluoropolymers include Asahi Glasson Daikin Industries, DuPont Dyneon and Solvay Solexis. Fluoropolymer can be extruded, injection, die casting, transfer molding and blow molding.FEP Pellet  Cable Insulation Application DS602.jpg

 

     Because the surface tension of fluoropolymer is very low, the films made from fluoropolymers (such as ETFEs) have self-cleaning function and can be washed out by Rain Water. Fluoropolymer films have excellent tear resistance, good puncture resistance and hail suppression. In addition, fluoropolymer has self-flame resistance and can prevent dripping. These properties make fluoropolymer suitable for building applications. The usually extruded fluoropolymer film is 100 μ m thick and can be connected by heat seal. In Japan, fluoropolymer films have been used in stadiums, swimming pools, botanical gardens and large greenhouses. The film appeared at the 2006 World Cup in Germany. Asahi Glass provided 150000m2undefineds Aflex film to make the roof of Munichundefineds Allianz-Arena football field. Most of the structure of the stadium, which opened the World Cup, is made of ETFE film, which makes the connection between the wall and the ceiling smoother, while also allowing the turf to grow through a certain amount of sunlight. And the wall and ceiling can be used as a monitoring screen.

     Fluoropolymer plays an important role in IT field. In todayundefineds buildings, ceilings are filled with cables, mostly made of combustible insulating materials such as PE or PVC. In order to increase its flame retardancy, it needs to be placed in a metal tube. If FEP is used as insulation material, metal pipes can be eliminated. FEP has been widely used in LAN network as a kind of insulation material and wire sheath material. The use of FEP cables in the buildingundefineds network has exceeded 70.

 

     In Japan, to reduce emissions from automobile engines, car manufacturers have widely used exhaust gas to return to reused turbine engines. The turbine tubes of the engine between its turbocharger and the intercooler are generally made of silicon. Because silicone rubber does not have very good oil resistance, the gas with a small amount of oil mist emitted from the engine will cause corrosion, so the engine manufacturer began to look for its replacement and found that fluoropolymer is a good choice. For example, TFE-propylene binary polymers and TFE-propylene-VDF ternary polymers produced by Asahi Glass can replace silicone rubber as materials for making such pipes.

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