Ryton® PPS

Thermally stable, dimensionally stable, chemically resistant, and inherently flame retardant.
 
Ryton® PPS Polyphenylene sulfide compounds offer a unique price/performance ratio that is unmatched by other engineering thermoplastics:

1. Thermal Stability:  Withstands temperatures up to 200°C (392°F) for long periods of time and up to 260°C (500° F) for short periods of time
2. Dimensional Stability: Even complex-shaped parts can be molded to very tight tolerances and are dimensionally stable even at high temperatures and harsh chemical environments.
3. Chemical Resistance: Resistant to a wide range of solvents and corrosive chemicals, even at high temperatures.
4. Inherently flame retardant:All Ryton® PPS compounds achieve a UL94 V-0 flammability rating without the addition of flame retardants.

 
What is PPS?


 

1. Polyphenyl sulfide (PPS) is a polymer formed by the para-substitution pattern of sulfur atoms and phenylene rings. Its molecular structure contains highly stable chemical bonds, which make it highly stable for both thermal degradation and chemical reactions. At the same time, the polymer's molecular structure is prone to the formation of a thermally stable crystalline lattice, making PPS a semicrystalline polymer with a crystalline melting point of around 285°C (545°F). Due to its molecular structure, PPS tends to form a carbonaceous residue during combustion, giving the material its innate flame retardant properties. PPS has not been found to be soluble in any solvent at temperatures below 200°C (392°F).

 

 

1. When mixed with glass fibers and other fillers, engineering plastics formulated with PPS have the following unique properties:
2. Extremely high long-term and short-term thermal stability
3. Ultra-high modulus and creep resistance
4. Excellent resistance to a wide range of aggressive chemical environments
5. Precise forming, tight tolerances and high reproducibility
6. Inherently flame retardant, no flame retardant added
7. Stable dielectric and insulating properties under various conditions