WebCrystallinity refers to the degree of structural order in a solid and has a large influence on hardness, density, transparency and diffusion. At present, commercial plastics almost do not reach 100% crystallinity, and they are generally composed of ‘crystalline regions’ … PTFE has a higher melting point and is more crystalline than PCTFE, but the latter is stronger and stiffer. Though PCTFE has excellent chemical resistance, it is still less than that of PTFE. PCTFE has lower viscosity, higher tensile strength and creep resistance than PTFE. PCTFE is injection-moldable and … See more 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 See more It was discovered in 1934 by Fritz Schloffer and Otto Scherer who worked at IG Farben Company, Germany. See more 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. See more PCTFE is a homopolymer of chlorotrifluoroethylene (CTFE), whereas PTFE is a homopolymer of tetrafluoroethylene. The monomers of the former differs from … See more 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 "Kellogg" and "fluoropolymer", which also represents other … See more 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 See more PCTFE finds majority of its application due to two main properties: water repulsion and chemical stability. PCTFE films are used as a … See more
Polychlorotrifluoroethylene - Wikipedia
WebThe key properties of VOLTALEF® PCTFE are : • very broad temperature range of application which includes extremely low temperatures : from – 255°C to + 150°C in continuous use and up to + 200°C as peak temperature, • high mechanical resistance … WebPolychlorotrifluoroethylene ( PCTFE) is a crystal clear, non-flammable, and semicrystalline high-performance thermoplastic that has exceptional moisture barrier properties, good heat and chemical resistance and excellent melt processability. It offers a unique balance of … how to spell weene
Polychlorotrifluoroethylene Market PCTFE Industry Report, 2024 …
WebSpecific gravity is the primary gage of crystalline or amorphous stages of polymers. In the case of PTFE the range is generally between 2.1 and 2.3 for unfilled resin. Testing showed that at 2.1 SpG the crystallinity of the molded product was approximately 38%. At 2.13 … WebJul 29, 2024 · The replacement of a single fluorine atom on the carbon backbone with a chlorine atom changes the properties of the fluoropolymer to allow melt processing. Through melt processing, PCTFE resin can be modified to give different mechanical and optical properties by controlling the crystallinity of the material. the UNIQUE PROPERTIES OF … WebJun 1, 2024 · They found that the highly crystalline PCTFE exhibited three distinct loss peaks at about −40, 95, and 150°C, corresponding to the loss of the lamellar surface, the chain segment motions in the... re 8 go ahead