Tetrafluoroethylene - Wikipedia
The depolymerization reaction – vacuum pyrolysis of PTFE at 650–700 °C (1,200–1,290 °F) in a quartz vessel – is a traditional laboratory synthesis of TFE. The process is however challenging because attention must be paid to pressure, as well as the avoidance of perfluoroisobutylene.
Polytetrafluoroethylene: Synthesis and Characterization of the …
2019年1月28日 · The manuscript commences with a short discussion on the synthesis and production of TFE (both at industrial and laboratory scales), including the safety aspects surrounding handling (because that monomer is regarded as explosive if brought into contact with oxygen due to the formation of peroxides), transport, and storage, and then expands into ...
Tetrafluoroethylene - chemeurope.com
Tetrafluoroethylene (TFE) is a chemical compound composed containing only carbon and fluorine with the molecular formula C 2 F 4. This gaseous species is used primarily in the industrial preparation of polymers. In organic chemistry, tetrafluoroethylene is a potent dienophile.
Advances in the Synthesis and Application of Tetrafluoroethylene…
2018年3月8日 · A comprehensive and critical perspective on the synthesis and application of 1,1,2,2-tetrafluoroethyl- and tetrafluoroethylene-containing compounds is presented. This review highlights physical properties and reactivity of molecules containing a CF 2 CF 2 fragment.
Introduction to Fluoropolymers - ScienceDirect
2013年1月1日 · Synthesis reactions of tetrafluoroethylene. Hexafluoropropylene and a small amount of highly toxic perfluoroisobutylene are among other compounds produced. Sherratt [14] and others [15] have provided complete descriptions of the preparation of TFE.
Tetrafluoroethylene | Non-stick, Fluoropolymer, Polymerization
Tetrafluoroethylene, a colourless, odourless, faintly toxic gas belonging to the family of organic halogen compounds; it is the starting material in the manufacture of polytetrafluoroethylene (q.v.), a valuable synthetic resin.
Preparation of tetrafluoroethylene from the pyrolysis of ...
2017年4月1日 · More recently, our laboratory developed a process that demonstrates the importance of equimolar TFE/CO 2 mixtures not only for the preparation of fluoropolymers but also for small molecule chemistry, in particular for the synthesis of SF 5-containing compounds.
Tetrafluoroethylene | C2F4 | CID 8301 - PubChem
The metabolism of tetrafluoroethylene has been studied in rat liver fractions; both microsomal and cytosolic glutathione S-transferases catalyze the formation of S-(1,1,2,2-tetrafluoroethyl)glutathione. The rate with microsomes was four times greater than with cytosol.
Energy and Resource Efficient Production of Fluoroalkenes in High ...
Tetrafluoroethylene (TFE) and hexafluoropropylene (HFP) are the most common monomers for the synthesis of fluoropolymers at industrial scale. Currently, TFE is produced via multistep pyrolysis of chlorodifluoromethane (R22), resulting in a high energy demand and high amounts of waste acids, mainly HCl and HF.
Tetrafluoroethylene - Wikiwand
The depolymerization reaction – vacuum pyrolysis of PTFE at 650–700 °C (1,200–1,290 °F) in a quartz vessel – is a traditional laboratory synthesis of TFE. The process is however challenging because attention must be paid to pressure, as well as the avoidance of perfluoroisobutylene.