PTFE plate is relatively common plate equipment in the production and life, we will find that using Teflon plate of raw materials is the most extensive. Next, we want to know is PTFE plate material superiority. Teflon PTFE plate material is referred to as "plastic", the larger molecular weight PTFE, hundreds of thousands of low and high of up to one million or more, usually millions (polymerization degree in 10 ^ 4 orders of magnitude, while the polyethylene only 10 ^ 3). Degree of crystallinity is generally 90 to 95 percent, a melting temperature of 327 ~ 342 ℃. PTFE molecule CF2 unit arranged by zigzag shape, due to the fluorine atom radius larger than the carbon, so adjacent CF2 units can not cross exactly as trans orientation, but the formation of twisted chain, fluorine atom is almost covered with a spiral the entire surface of the polymer chain. This molecular structure explains the various properties of PTFE. When the temperature is below 19 ℃, the formation of 13/6 helix; phase transition at 19 ℃, molecular slightly untied, 15/7 spiral form. It solves many problems produce chemical, petroleum, pharmaceutical and other fields. PTFE seals, gaskets, shims. PTFE seals, gaskets, sealing gasket is optional suspension polymerization PTFE resin molding material. PTFE compared with other plastics having chemical resistant characteristics, it has been widely used as a sealing material and a filler material. Polytetrafluoroethylene (PTFE) Conditions industry chemical, petrochemical, refining, chlor-alkali, acid, fertilizer, pharmaceuticals, pesticides, chemical fiber, dyeing, coking, gas, organic synthesis, non-ferrous metallurgy, iron and steel, atomic energy and polymer filtration material , purity products (such as ion-exchange membrane electrolysis), viscous material handling and operation, highly stringent hygiene requirements in food and beverage processing sector. 

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