sulfar

Sulfar fiber (1983) is a nonconductive fiber that has excellent resistance to chemical and thermal attack; it has changed industry with filter fabrics for coal boilers, papermaker 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
Nondyeable
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

Production

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 (S) linkages are attached directly to two (2) aromatic rings." The PPS (polyphenylene sulfide) polymer is formed by reaction of sulfur with dichlorobenzene and then extruded by melt spinning to produce both staple and filament fibers. First U.S. Commercial Sulfar Fiber Production: 1983, Phillips Fibers Corporation, A Subsidiary of Phillips 66 Company Current U.S. Sulfar Fiber Producers: (Sulfar is not produced in the United States. The only producer is Toray Industries, Inc. Japan)

Sulfar

Sulfar fiber characteristics

Major Industrial Sulfar Fiber Uses

Production

See also