WebPolychlorotrifluoroethylene (PCTFE) Polychlorotrifluoroethylene (PCTFE) Alternative and trade names Voltalef ... Melting point. 210.0 - 215.0 °C. Show Material materials with … WebBut at cryogenic temperatures, polymers tend to become less resistant, more fragile. However, PTFE and PCTFE polymers retain some ductility when exposed to cryogenic temperatures. Polymers are hard at low temperatures, but this hardness becomes weaker at room temperature [37]. As for the thermal conductivity of polymers, it is low at room ...
CFC-113 - ChemBK
WebPCTFE, Polychlorotrifluoroethylene is a melt-processable chlorofluoropolymer. The presence of a chlorine atom, which has a greater atomic radius than that of fluorine, gives rise to irregularities in the polymer chain and reduces polymer crystallinity. This results in PCTFE having a relatively low melting point among fluoropolymers. Web15 jun. 2024 · However, PCTFE has a lower melting point as compared to other fluoropolymers owing to the presence of chlorine atoms which does not allow the close packing of otherwise smaller atoms and hence blending in molten state is easier [25]. dmc healthcare maidstone
Physical Properties Table - Thermo Fisher Scientific
WebIntermolecular forces and the melting point of PTFE. The melting point of PTFE is quoted as 327°C. That's quite high for a polymer of this sort - so there must be sizeable van der … WebPolychlorotrifluoroethylene (PCTFE) Properties and Applications. Polychlorotrifluoroethylene (PCTFE) is a crystal clear, non-flammable, and semicrystalline high-performance … This results in having a relatively lower melting point among fluoropolymers, [19] around 210–215 °C. [2] PCTFE is resistant to the attack by most chemicals and oxidizing agents, a property exhibited due to the presence of high fluorine content. However, it swells slightly in halocarbon compounds, … Meer weergeven Polychlorotrifluoroethylene (PCTFE or PTFCE) is a thermoplastic chlorofluoropolymer with the molecular formula (CF2CClF)n, where n is the number of monomer units in the polymer molecule. It is similar to Meer weergeven It was discovered in 1934 by Fritz Schloffer and Otto Scherer who worked at IG Farben Company, Germany. Meer weergeven PCTFE is an addition homopolymer. It is prepared by the free-radical polymerization of chlorotrifluoroethylene (CTFE) and can be carried out by solution, bulk, suspension and emulsion polymerization. Meer weergeven PCTFE is a homopolymer of chlorotrifluoroethylene (CTFE), whereas PTFE is a homopolymer of PCTFE is Meer weergeven After World War II, PCTFE was commercialized under the trade name of Kel-F 81 by M. W. Kellogg Company in early 1950s. The name "Kel-F" was derived from … Meer weergeven PCTFE has high tensile strength and good thermal characteristics. It is nonflammable and the heat resistance is up to 175 °C. It has a low coefficient of thermal expansion. The Meer weergeven PCTFE finds majority of its application due to two main properties: water repulsion and chemical stability. PCTFE films are used as a protective layer against moisture. … Meer weergeven dmc hd wallpaper