Fluorinated Ionomers

Glossary and Web Sites

A-F

Acyl Fluoride
An aliphatic acid fluoride.
Carbon Black
A black colloidal carbon filler made by the partial combustion and/or thermal cracking of natural gas, oil or another hydrocarbon. Depending on the starting material and the method of manufacture, carbon black can be called as acetylene black, channel black, furnace black, etc. For example, channel black is made by impinging gas flames against steel plates or channel irons, from which the deposit is scraped at intervals. The properties and the uses of each carbon black type can also vary. Also called colloidal carbon.
Carbon Fiber
Carbon fibers are high-performance reinforcement consisting essentially of carbon. They are made by a variety of methods including pyrolysis of cellulosic (e.g., rayon) and acrylic fibers, burning-off binder from a pitch precursor, and growing single crystals (whiskers) via thermal cracking of hydrocarbon gas. The properties of carbon fibers depend on the morphology of carbon in them and are at their highest levels for crystalline carbon (graphite). These properties include high modulus and tensile strength, high thermal stability, electrical conductivity, chemical resistance, wear resistance and relatively low weight.
Current Efficiency (CE)
The fraction of current used in the desired reaction. CE can be different at the anode, membrane and cathode (e.g., in "chromic acid regeneration").
Denier
Unit of yarn/fiber size described as the weight (in grams) of a length of 9000 yards.
Dictionaries of Electrochemistry
www.corrosion-doctors.org/Dictionary/Dictionary-D.htm http://electrochem.cwru.edu/ed/encycl/index.html
Differential Scanning Calorimetry (DSC)
DSC is a technique in which the energy absorbed or produced is measured by...

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