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Sulfar fiber (1983) is a nonconductive fiber made from polyphenylene sulfide that has excellent resistance to chemical and thermal attack; it has become widespread as a filter fabric for coal boilers, papermaking felts, electrical insulation, specialty membranes, gaskets, and packings.
Sulfar fiber characteristics
- Outstanding resistance to heat
- Outstanding resistance to acids and alkalies
- Excellent resistance to mildew, aging, sunlight and abrasion
- Resistant to bleaches and solvents under normal conditions
Major Industrial Sulfar Fiber Uses
- filter fabric for coal-fired boiler bag houses
- papermaker felts
- electrical insulation
- electrolysis and other specialty membranes
- filter fabrics for liquid and gas filtration
- high-performance composites, gaskets, and packings
The Federal Trade Commission definition for sulfar fiber is "A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide in which at least 85% of the sulfide (āSā) linkages are attached directly to two (2) aromatic rings."
First U.S. Commercial Sulfar Fiber Production: 1983, Phillips Fibers Corporation, A Subsidiary of Phillips 66 Company