Polyphenylene sulfide (PPS) plastic raw materials performance introduction
Click： Time：2023-11-08 11:54:56
Polyphenylene sulfide (PPS) plastic raw materials with excellent heat resistance: its melting point of more than 280 ℃, heat distortion temperature of more than 260 ℃, the long-term use of the temperature of 220-240 ℃. Degradation in the air at 700 ° C inert gas at 1000 ° C still maintains 40% of the weight, short-term heat resistance and long-term thermal stability of continuous use are better than all current engineering plastics. After special modification of the species, the heat distortion temperature can reach 350 ℃ or more.
Self-retardant: Polyphenylene sulfide flame retardant can reach UL94-0 grade, oxygen index (LOI) >57%. The chemical structure of polyphenylene sulfide itself makes it has good incombustibility, no need to add flame retardant.
Good mechanical properties: its rigidity is very strong, high surface hardness, Rockwell hardness>100HR, tensile strength>170 MPa, bending strength>220MPa, notched impact strength>16 MPa, bending modulus>3.5×104, and has excellent creep resistance and fatigue resistance.
Excellent chemical resistance: no solvents have been found that can dissolve polyphenylene sulfide below 200℃, and it has excellent resistance to inorganic acids, alkalis and salts.
Good dimensional stability: molding shrinkage is very low, less than 0.0025%, the absorption rate is less than 0.05%, and the linear coefficient of thermal expansion is also small. Under high temperature and high humidity conditions, it still shows good dimensional stability. Therefore, it has a wide range of uses in machinery, chemical industry, instruments, meters and aviation, aerospace, ships and other aspects.
Excellent electrical properties: polyphenylene sulfide in high temperature, high humidity, high-frequency conditions still has excellent electrical properties, its volume resistivity of 1 × 1016Ω.cm, surface resistivity of 1 × 1015Ω, electrical strength > 18KV/mm.
Outstanding abrasion resistance: by filling lubricants such as fluorine resin and carbon fiber, its abrasion resistance can be greatly improved, and the coefficient of friction is 0.01-0.02.
Amplitude radiation resistance: Amplitude radiation resistance reaches Gy 1×108, which is a new material incomparable to other engineering plastics, and it is the only ideal and excellent material for radiation resistance in the fields of electronics, electrics, machinery, instrumentation, aviation, aerospace, and military, especially for atomic bombs and neutron bombs.
Good processing performance: PPS resin melt viscosity is low, good fluidity, very easy to wet with glass fiber contact, so filling filler is easy, with its preparation of glass fiber or inorganic filler reinforced injection molding-grade granules, with high resistance to stretching, impact resistance, bending and ductility. It can be molded uniformly above its melting point.
Good bonding performance with metals and non-metals: PPS has very high bonding strength especially for glass, aluminum, titanium, stainless steel, etc., with adhesion up to grade 1. Good bonding performance to glass, very suitable for chemical equipment lining.
Our Shenzhen Huayun Chemical Trade Co., Ltd. is the main agent distributing plastic raw materials: LG Chemical ABS plastic raw materials, Ningbo Formosa ABS plastic raw materials, wind PC plastic raw materials, Jenxin PS plastic raw materials. Docking chemical plant directly for customers to provide ABS plastic raw materials color, custom colors, such as ABS white, ABS black, ABS blackout raw materials. To provide customers with a variety of engineering plastics modification services, ABS plastic material modification, PC plastic material modification, PA plastic raw material modification, PC / ABS alloy modification, PBT plastic material modification, PP plastic material modification, POM plastic material modification, PPS plastic material modification, heat-resistant plastic modification, conductive plastic modification, high-barrier plastic materials, environmental plastic materials.
