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Teflon can be rated as the plastic king Teflon [PTFE , F4] is to be able to bear one of corrosion function the best material in the world nowadays .Get the "plastic king" laudatory title therefore .Chemistry medium uses its energy over a long period of time in any kind, its many problem of creation fields such as chemical industry , petroleum , pharmacy having resolved our country. Teflon sealing element , washer , pad. The teflon sealing element , pad , seal washer are that the model moulds treating select and use suspension polymerization teflon resin be made from. Teflon and plastic is compared with each other other have be able to bear the chemistry corrosion and be able to bear the outstanding characteristic of temperature, it is encapsulant and filling material already quilt applying broadly. Teflon molecular formula teflon is four fluorine ethenes polymers. English abbreviation is PTFE. The commodity is called "Teflon " (teflon). "King of being plastic" by good reputation. Teflon basic structure is. -CF2- CF2- CF2- CF2- CF2- CF2- CF2- CF2- CF2- CF2. Teflon applies to need the antiacid alkali and organic various menstruum's broadly, its self one of the raw material not having toxicity to person, but being put into use in procedure of production satisfies the bitter fluorine ammonium (PFOA) being considered may have a carcinogenesis. Teflon (Teflon or PTFE) , popular name "plastic king ", Chinese commodity "iron fluorine dragon " ", exceptional fluorine dragon " ", "Tefulong" ", Thailand fluorine dragon " etc.It is accomplished because four fluorine ethene classics get together high polymer , have the good chemistry stability , is able to bear corrosivity , hermetic sealing , high lubrication the viscidity , electricity insulation and fine resisting do not age endurance. The long range works under the temperature being able to in 250 ℃ + till 180 ℃-, except six-zone-pass metal sodium and the liquid fluorine, ability other all chemicals, boil in chloroazotic acid getting change neither. Being used as engineering plastics , may manufacture the teflon tube , stick , belt , board , film and so on. Apply to function demanding the pipeline , container , pump , valve that higher being able to bear corrodes and making the radar , high frequency communication equipment and material , radio equipment and material and so on in general. Antisepsis picture preparing metal , glass , earthenware surface waits for the insulation dipping liquid dispersing various liquid work material available tier. Various gathering four fluorine circles , gathering four fluorine pads , gathering four fluorines checking root and so on is used for preservative pipeline flange of all kinds