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Polymer00012 - categories fluoroelastomers some of which...

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1 CHAPTER 1 INTRODUCTION 1.1 Fluoropolymer and Fluoroelastomer In 1930s, Dr. Roy J. Plunkett discovered a new type of polymer—fluoropolymer, when he was polymerizing tetrafluoroethylene to form polytetrafluoroethylene (PTFE). This new material was registered as Teflon® in 1944 and since then many forms of PTFE and copolymers of fluorinated polymers have been developed and commercialized. Generally, a fluoropolymer is defined as a polymer consisting of carbon (C) and fluorine (F) (Ebnesajjad and Khaladkar 2005). Fluoropolymer are usually classified as two main
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Unformatted text preview: categories: fluoroelastomers, some of which are curable and fluorothermoplastics which possess excellent processability. Due to the high stability of fluorine-carbon bond, fluoropolymers have excellent chemical and heat resistance, low friction coefficient, and low permeability. Figure 1.1 showed the polymerization process of PTFE. C C F F n F F polymerization C C F F F F n Tetrafluoroethylene PTFE Figure 1.1 Polymerization of PTFE...
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  • Spring '08
  • Colby,R
  • Polytetrafluoroethylene, Fluorocarbon, Roy J. Plunkett, possess excellent processability, Fluoroelastomer, low friction coefficient

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