Overview
Idemitsu PPS is a premium-grade polyphenylene sulfide thermoplastic developed by Idemitsu Kosan, a leading Japanese chemical company. It belongs to the family of high-performance polymers known for their exceptional thermal and chemical resistance. PPS is semi-crystalline and can be processed via injection molding or extrusion, making it versatile for engineering applications. Initially commercialized in the 1970s, Idemitsu PPS has become a benchmark material in industries requiring durability under extreme conditions. Its molecular structure features aromatic rings linked by sulfur atoms, contributing to its stability. The material is available in various grades, including glass-fiber-reinforced and mineral-filled formulations.
Physical and Chemical Properties
Idemitsu PPS exhibits a unique combination of properties that distinguish it from other thermoplastics. It maintains mechanical integrity up to 260°C and has a UL94 V-0 flame rating without additives. The material is inherently resistant to acids, alkalis, and organic solvents, except for concentrated oxidizing agents. Its tensile strength ranges from 80-150 MPa, depending on the grade, with low creep even under prolonged stress. Electrical properties include a high dielectric strength and volume resistivity, making it ideal for insulating components. PPS also has low moisture absorption (<0.05%), ensuring dimensional stability in humid environments.
Main Applications
In the automotive sector, Idemitsu PPS is used for under-the-hood components like fuel system parts, sensors, and connectors due to its resistance to gasoline and high temperatures. Electronics manufacturers utilize it for LED housings, circuit board substrates, and semiconductor trays. Industrial applications include chemical pump housings, valve seats, and filtration membranes where corrosion resistance is critical. Recent innovations include PPS composites for lightweight aerospace components. The material’s FDA compliance also allows limited use in food processing equipment.
Safety and Storage
While Idemitsu PPS is generally safe to handle, processing at temperatures above 300°C may release trace amounts of hydrogen sulfide. Adequate ventilation and personal protective equipment (PPE) such as gloves and goggles are recommended during machining or molding. Pellets should be stored in sealed containers to prevent moisture absorption, which can affect processing. Long-term storage exceeding one year may require pre-drying before use. Spills can be swept up without special precautions, but local waste disposal regulations should be followed.
B2B Procurement Guide
When sourcing Idemitsu PPS, buyers should specify the required grade (e.g., 1140A1 for unfilled resin or 6130B for 30% glass-reinforced). MOQs typically start at 500 kg, with bulk discounts available for orders exceeding 5 tons. Lead times range from 4-8 weeks for standard grades. Certifications like ISO 9001 and UL listings should be verified. Sample testing is advisable to confirm properties like flow rate and impact strength. Alternative suppliers include Toray and DIC, but Idemitsu’s consistent quality control makes it a preferred choice for precision applications.
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