What is the chemical name of PTFE?
The commonly known brand name of PTFE-based compositions is Teflon by Chemours, a spin-off from DuPont, which originally discovered the compound in 1938. Polytetrafluoroethylene is a fluorocarbon solid (at room temperature), as it is a high- molecular-weight polymer consisting wholly of carbon and fluorine.
What is PTFE and how does it protect against corrosion?
PTFE can be very beneficial in corrosion protection because it repels nearly everything, so molecules cannot get close enough to react with it. Hence, the bond that exists between the carbon atom and fluorine atom is immense, making it almost bullet resistant.
How do you dissolve PTFE?
It is performed by immersion of the PTFE in a solution containing sodium followed by rinsing in alcohol and water. The process was originally performed by dissolving sodium metal in liquid ammonia. An alternative method was to form a complex with naphthalene, which was then dissolved in an ether such as tetrahydrofuran (THF).
What are the disadvantages of PTFE?
Disadvantages of the material are only relative to the application: in many ways, PTFE is a wonder material but it can’t be used for everything. Depending on the application, the following disadvantages can rule out the selection of PTFE:
What is frankfrankenstein about?
Frankenstein; or, The Modern Prometheus is a novel written by Mary Shelley. It is about a creature produced by a strange scientific experiment.
What are PTFE membrane filters?
PTFE membrane filters are among the most efficient industrial air filters. PTFE-coated filters are often used in dust collection systems to collect particulate matter from air streams in applications involving high temperatures and high particulate loads such as coal-fired power plants, cement production and steel foundries.
How is Victor Frankenstein portrayed in the 1831 edition?
Victor is portrayed more sympathetically in the original text. In the 1831 edition however, Shelley is critical of his decisions and actions. Shelley removed many references to scientific ideas which were popular around the time she wrote the 1818 edition of the book.