PPS Polysulfure de phénylène

Polyphenylene Sulfide (PPS) is a crystalline polymer having a symmetrical, rigid backbone chain consisting of recurring p-substituted benzene rings and sulfur atoms. A variety of grades suitable for slurry coating, fluidized-bed coating, electrostatic spraying, as well as injection and compression molding are offered. Polyphenylene sulfides exhibit outstanding chemical resistance, thermal stability, dimensionally stability, and fire resistance. PPS’s extreme inertness toward organic solvents, and inorganic salts and bases make for outstanding performance as a corrosion-resistant coating suitable for contact with foods.


The PPS is considered as a high performance polymer. The first commercial grades of polyphenylene sulfides (PPS) were introduced by Phillips Petroleum in 1968 under the trade name Ryton®. These were of two types, a thermoplastic branched polymer of very high viscosity which was processed by PTFE-type processes, and an initially linear polymer which could be compression molded. Then, in 1973 in Europe, the emphasis was shifted to injection molding and coating processes.

→ Vanne conçue et fabriquée par Guichon pour une unité de production de Polysulfure de phénylène, en savoir plus

Features
Lubricated , Flame Retardant, Good Chemical Resistance, High Heat Resistance , Electrically Conductive, Good Wear Resistance, Good Dimensional Stability, High Stiffness , High Strength, Thermally Conductive, More…

PPS produces engineering plastics having a unique combination of properties including:

  • A remarkable combination of both long-term and short-term thermal stability
  • Exceptionally high modulus and creep resistance
  • Outstanding resistance to a wide variety of aggressive chemical environments
  • Precision molding to tight tolerances with high reproducibility
  • Inherent non-flammability without flame retardant additives
  • Dielectric and insulating properties stable over a wide range of condition



    Disadvanta
    ges
    Difficult to process (high melt temperature)
    Comparatively high cost
    Fillers required to get good impact strength
    Subject to warpage and brittlness

    Uses
    Automotive applications, medical/healthcare applications, Business equipment, electrical/electronic applications, textile apllications, engineering parts; industrial applications, metal replacement, pump parts, appliances, more …