PPS is a polymer with a white appearance, high crystallinity, hardness, and brittleness. The relative density of pure PPS is 1.3, but it increases after modification. PPS has a very low water absorption rate, usually only about 0.03%. PPS has good flame retardancy, with an oxygen index of over 44%; Compared with other plastics, it belongs to high flame retardant materials in plastics (pure PVC has an oxygen index of 47%, PSF of 30%, PA66 of 20%, MPPO of 28%, and PC of 25%).
Pps Pellets
We have 68 modification production lines, which can modify glass fiber, carbon fiber, PTFE to meet the needs of various industries for wear resistance, strength, conductivity, and antistatic /ESD properties.
Unfilled PPS Resin 10%-50%Glass fiber reinforced PPS Glass fiber mineral composite PPS GF+PTFE reinforced wear resistance PPS 10%-50% carbon fiber reinforced PPS Coffee color glass fiber reinforced pps ESD PPS/Conductive pps Ultra wear-resistant PPS High resilience PPS PPS for injection
PPS material has excellent dimensional stability and mechanical properties such as high strength, high modulus, low creep, and low stress relaxation. This enables PPS plastic to maintain good stability and reliability even under heavy loads, high stresses, or long-term loads. Low moisture absorption: The moisture absorption rate is only 0.02%~0.05% (ASTM D570 standard), and the size change under humidity fluctuations (RH 20%~90%) is less than 0.03% Low thermal expansion coefficient: 3-5 × 10 ⁻⁵/℃, close to metals (such as aluminum 2.3 × 10 ⁻⁵/℃), excellent compatibility in temperature changing environments (-50 ℃~220 ℃), and avoids thermal stress cracking.
High rigidity: After fiberglass reinforcement, the bending modulus reaches 12-15GPa (ISO 178), and the deformation rate under load is less than 0.1%, making it suitable for precision support structures.
Sheet metal forming Extrusion process: Twin screw extruder (L/D=32~40) with a high temperature range of 330~350 ℃ and a pressure of 15~25MPa to ensure the uniformity of the melt; Rolling and shaping: The three roll rolling machine (roll temperature 140~160 ℃) controls a thickness tolerance of ± 0.05mm and a surface roughness Ra ≤ 0.8 μ m. Bar and tube materials Continuous pultrusion: Fiber reinforced PPS rod is formed by pultrusion (traction speed of 0.5-2m/min), with axial strength greater than 200MPa; Precision mold design: The inner wall of the pipe is polished to Ra 0.4 μ m, with a wall thickness deviation of less than ± 0.1mm (suitable for high-purity fluid transmission). post-treatment Annealing to relieve stress: annealing at 160 ℃ for 4 hours to release residual stress and reduce warpage by over 70%;
PPS mold design and manufacturing services&injection service PPS mold design and manufacturing services are specially customized for high-performance materials of polyphenylene sulfide, suitable for the production of high-temperature (220 ℃+) and corrosion-resistant parts in the fields of automobiles, electronics, aviation, etc. Based on the high crystallization characteristics of PPS, optimize the mold structure and cooling/exhaust system, select high hardness mold steel and surface treatment process to ensure low shrinkage and high wear resistance.
As a high-performance plastic supplier in China, PRES offers a range of high-performanceplastic products, including plastic pellets, plastic plates, plastic rods, plastic tubes, plastic powders, and high-performance 3D printing filaments. Meanwhile, we provide mold design & manufacturing & injection molding services.
CONTACT US
Phone: +86 18676969309
Wechat:18676969309 Email: rioplastic@foxmail.com WhatsApp: +86 18676969309 Add: No. 417, Chang Road, Changping Town, Dongguan City, Guangdong Province
