Overview
Torelina® is a premium-grade polyphenylene sulfide (PPS) resin developed for high-performance applications. As a semi-crystalline thermoplastic, it combines exceptional heat resistance (up to 220°C continuous use) with inherent flame retardancy (UL94 V-0 rating). First commercialized in the 1970s, PPS resins like Torelina® have become indispensable in industries requiring materials that withstand harsh environments. Its molecular structure—aromatic rings linked by sulfur atoms—confers rigidity and stability unmatched by many other polymers.
Physical and Chemical Properties
Torelina® exhibits a unique balance of properties: tensile strength of 80–100 MPa, flexural modulus of 3.5–4.5 GPa, and minimal creep under load. It retains >70% of its mechanical properties at 200°C. Chemically, it resists acids, alkalis, fuels, and solvents except concentrated oxidizing agents. The material’s dielectric strength (15–18 kV/mm) and arc resistance make it ideal for electrical components. Glass-fiber reinforced grades show enhanced dimensional stability and reduced thermal expansion.
Main Applications
In automotive systems, Torelina® is used for under-hood components like throttle bodies, sensor housings, and fuel system parts due to its resistance to glycol-based coolants and hydrocarbons. The electronics industry employs it in connectors, PCB substrates, and LED housings where soldering heat resistance (260°C+) is critical. Industrial applications include pump impellers, valve seats, and chemical processing equipment linings where corrosion resistance is paramount.
Safety and Storage
While Torelina® is generally safe, processing at high temperatures (>300°C) may release trace sulfur compounds. Adequate ventilation and fume extraction are recommended during injection molding or machining. Store original packaging in conditions below 40°C and <60% relative humidity. Prolonged exposure to moisture can affect processing characteristics, requiring pre-drying at 120–140°C for 3–4 hours before use.
B2B Procurement Guide
Specify requirements clearly: choose between unfilled (for chemical resistance) or 40% glass-fiber reinforced grades (for structural parts). Verify ISO 9001 or IATF 16949 certifications for automotive suppliers. Bulk orders (pallet quantities) typically offer 10–15% cost savings. Lead times vary from 4–8 weeks for standard grades to 12+ weeks for custom formulations. Consider regional warehousing options to minimize logistics delays.
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