Polyphenylene sulfide

PPS is used in filter fabric for coal boilers, papermaking felts, electrical insulation, film capacitors, specialty membranes, gaskets, and packings.

[4] Other manufacturers include Chengdu Letian Plastics, Lion Idemitsu Composites, and Initz (a joint venture of SK Chemicals and Teijin).

These properties include resistance to heat, acids, alkalies, mildew, bleaches, aging, sunlight, and abrasion.

[7] N-Methyl-2-pyrrolidone (NMP) is used as the reaction solvent because it is stable at the high temperatures required for the synthesis and it dissolves both the sulfiding agent and the oligomeric intermediates.

Linear, high-molecular-weight PPS that is capable of being extruded into film or melt spun into fiber was invented by Robert W.