PPS: High-resistance thermoplastics for extreme chemical and thermal environments

PPS (polyphenylene sulfide) is a semi-crystalline thermoplastic designed to withstand the most demanding industrial environments.

Thanks to its stable aromatic structure and robust sulfur bonds, it combines thermal resistance, dimensional stability and chemical inertness, even in the most aggressive environments.

• Outstanding thermal stability
  Continuous service temperature: up to 240°C, with peaks at 260°C
  Low thermal expansion = high dimensional stability
  Withstands repeated thermal cycles without deformation
• High chemical inertia
  Resists most acids, bases, solvents and hydrocarbons
  Compatible with corrosive environments and aggressive chemicals
• Mechanical strength at high temperatures
  Rigidity and creep resistance maintained even under thermal stress
  Suitable for structural applications in hot environments
• Reliable electrical properties
  Excellent electrical insulation with stable dielectric constant
  Arc resistance = enhanced safety for electronic components

• Aerospace: engine mounts, turbocharger components, control valves. Resistance to gamma and neutron radiation.
• Automotive: Parts close to the engine (manifolds, sensors), resistance to fluids (oils, fuels, coolants).
• Electronics and connectors: High-density connectors, housings, high dimensional accuracy.
• Chemical industry: Pumps, valves, heat exchangers, tank linings. Excellent resistance to stress cracking.

Ryton® R4 - 40% glass fiber reinforcement

• Very high mechanical rigidity (modulus >12 GPa)
• Improved chemical resistance
• Precision machinability and controlled dimensional shrinkage

• Formulation and extrusion 100% controlled in-house
• Complete traceability of raw materials
• Optimization of extrusion parameters for perfect homogeneity
• Technical support in choosing geometries, assemblies and usage constraints

Polypropylene sulfide is a strategic material for industrial engineers faced with extreme environments. DEMGY's Ryton® R4 grade offers a durable, high-performance and precise technical response to the problems of high temperature, corrosion and miniaturization.