Search results
Results from the WOW.Com Content Network
The performance of fluoroelastomers in aggressive chemicals depends on the nature of the base polymer and the compounding ingredients used for moulding the final products (e.g. O-rings, shaft seals).
FKM is a family of fluorocarbon-based fluoroelastomer materials defined by ASTM International standard D1418, [1] and ISO standard 1629. [2] It is commonly called fluorine rubber or fluoro-rubber . FKM is an abbreviation of Fluorine Kautschuk Material. [ 3 ]
In addition, chemical compatibility refers to the container material being acceptable to store the chemical or for a tool or object that comes in contact with a chemical to not degrade. For example, when stirring a chemical, the stirrer must be stable in the chemical that is being stirred. Many companies publish chemical resistance charts.
After manufacturing, they are O-plasma vacuum cleaned (and/or vacuum baked) to reach out-gassing performance similar to Teflon while reaching vacuum leak tightness (permeability rates) similar to FKM compounds. This combination of properties allows FFKM seals to reach well into UHV pressures without the use of metal sealing. However, they are ...
a. Different explosives of compatibility group A should be packaged separately. b. Explosives of compatibility group L shall only be packed with an identical explosive. c. Explosive articles of the compatibility group C, D, or E may be packed together, and the whole packaged shall be treated as belonging to compatibility group E. d.
Due to its chemical stability, it acts as a protective barrier against chemicals. It is used as a coating and prefabricated liner for chemical applications. PCTFE is also used for laminating other polymers like PVC, polypropylene, PETG, APET etc. It is also used in tubes, valves, chemical tank liners, O-rings, seals and gaskets. [15]
Interactive maps, databases and real-time graphics from The Huffington Post
PFA is commonly used as a material for piping and as fittings for aggressive chemicals, as well as the corrosion-resistant lining of vessels in the chemical-processing industry. Typical applications include the construction of gas scrubbers, reactors, containment vessels and piping. [ 6 ]