PPS

polymer

Polyphenylene sulfide (PPS) is a high-performance engineering thermoplastic featuring an aromatic backbone with sulfide linkages, conferring exceptional thermal stability and chemical resistance. It is widely employed in aerospace, automotive, and chemical processing industries where sustained exposure to elevated temperatures, aggressive chemicals, and mechanical stress demands material durability—notably in fuel system components, electrical connectors, pump housings, and composite matrix resins. Engineers select PPS over commodity polymers when dimensional stability at temperature, flame resistance, and compatibility with harsh operating environments are critical, and over thermosets when reprocessability and injection-moldability are advantageous.

aerospace fuel systemsautomotive under-hood componentschemical pump housingselectrical connectors and insulatorscomposite matrix resinsflame-resistant applications

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Compressive Strength(σc)
—
Pa——
Elongation at Break(εf)
—
-——
Flexural Strength (MOR)(σf)
—
Pa——
Ultimate Tensile Strength(σUTS)
—
Pa——
Young's Modulus(E)
—
Pa——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Glass Transition Temperature(Tg)
—
K——
Melting Point / Solidus(Tm)
—
K——
Maximum Service Temperature(Tmax)
—
K——
Thermal Conductivity(k)
—
W/(m·K)——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
—
eV——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Refractive Index(n)
—
-——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.