{"id":2326,"date":"2026-05-21T15:17:52","date_gmt":"2026-05-21T07:17:52","guid":{"rendered":"https:\/\/www.jcinjectionmolding.com\/?p=2326"},"modified":"2026-06-30T17:13:23","modified_gmt":"2026-06-30T09:13:23","slug":"polyphenylene-sulfide-pps","status":"publish","type":"material","link":"https:\/\/www.jcinjectionmolding.com\/zh\/materials\/polyphenylene-sulfide-pps\/","title":{"rendered":"Polyphenylene Sulfide (PPS)"},"content":{"rendered":"
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Comprehensive PPS Grades & Brands We Mold<\/h2>\n

We process high-rigidity, high-temperature PPS formulations from world-renowned producers, supporting strict tolerances and extreme thermal environments:<\/p>\n\n\n\n\n\n\n\n
PPS Material Class<\/th>\nTypical Brand & Grade<\/th>\nKey Characteristics & Advantages<\/th>\n<\/tr>\n<\/thead>\n
Glass-Fiber Reinforced (GF)<\/td>\n\u2022 Toray Torcon 1140-A6 \/ 1140-T6 (40% GF)
\n\u2022 Celanese Fortron 1140L4 (40% GF)
\n\u2022 Solvay Ryton R-4-200 \/ R-4-220 (40% GF)
\n\u2022 DIC.PPS FZ-1140 (40% GF)<\/td>\n		Exceptional tensile and flexural strength, outstanding creep resistance, low water absorption, and chemical insolubility under 200\u00b0C. Perfect for automotive cooling systems, pump impellers, and high-load electrical parts.<\/td>\n<\/tr>\n
Mineral & Glass Filled<\/td>\n\u2022 Celanese Fortron 6165A6 (65% GF\/MF)
\n\u2022 Solvay Ryton R-7-120 (65% GF\/MF)
\n\u2022 DIC.PPS FZ-6600<\/td>\n		Maximum dimensional stability, extremely high compressive strength, superior heat deflection temperature, and excellent tracking resistance (electrical). Used in switches, bobbins, and heater cores.<\/td>\n<\/tr>\n
Wear Resistant & Tribological<\/td>\n\u2022 Toray Torcon 1430-D5
\n\u2022 Solvay Ryton Wear-Resistant Custom Compounds<\/td>\n		Modified with carbon fiber, PTFE, or graphite lubricants to reduce the friction coefficient and increase wear resistance. Suited for bearing bushings, valve seats, and sliding pistons.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Applicable Molding Processes for PPS<\/h2>\n

PPS has excellent melt fluidity, but its high mineral\/fiber load requires strict control of tooling structures:<\/p>\n\n\n\n\n\n\n\n
Molding Process<\/th>\nProcess Suitability & Application<\/th>\n<\/tr>\n<\/thead>\n
Standard Injection Molding<\/td>\nExcellent. Highly optimized for chemical-resistant flow valves, industrial pump housings, boiler components, and large automotive grilles.<\/td>\n<\/tr>\n
Thin-Wall Molding<\/td>\nHigh. PPS’s superior fluidity (low viscosity) enables high-pressure injection into thin-walled electronic connector slots and bobbin walls.<\/td>\n<\/tr>\n
Insert Molding<\/td>\nExcellent. Widely applied in the automotive electronics sector to mold delicate copper pins and brass bushings directly within rigid PPS sensor housings.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n

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Polyphenylene Sulfide (PPS) Injection Molding Guide<\/h2>\n

PPS’s high fluidity makes it highly susceptible to flashing, while its semi-crystalline structure demands rigorous mold temperature control:<\/p>\n

    \n
  • Pre-Drying:<\/strong> While PPS has low water absorption, we dry raw resin at 120\u00b0C\u2013140\u00b0C (248\u00b0F\u2013284\u00b0F) for 3\u20134 hours. This eliminates surface splay and prevents weld-line micro-voids, securing cosmetic and physical perfection.<\/li>\n
  • Melt Temperature:<\/strong> Set between 295\u00b0C and 330\u00b0C (563\u00b0F to 626\u00b0F). Processing temperatures must not exceed 350\u00b0C to prevent thermal degradation and outgassing.<\/li>\n
  • Critical Mold Temperature:<\/strong> Pressurized oil heaters are mandatory to keep mold temperatures at 120\u00b0C\u2013150\u00b0C (248\u00b0F to 302\u00b0F). Low mold temperatures (below 90\u00b0C) prevent correct crystalline formulation, severely degrading structural rigidity and heat deflection properties.<\/li>\n
  • Micron-Level Flash Control:<\/strong> Due to PPS’s low melt viscosity, flash can occur even at mold gaps as small as 0.01mm. Jucheng\u2019s in-house tooling division uses 5-axis CNC machines to achieve ultra-tight tolerances (parting line clearances within 0.005mm) to secure zero-flash parts.<\/li>\n
  • Low Shrinkage:<\/strong> Volumetric shrinkage is exceptionally low (typically 0.2% to 0.5% for GF40 grades). The extremely high dimensional stability makes PPS an ideal replacement for aluminum castings.<\/li>\n<\/ul>\n<\/section>\n

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    Key Application Industries for Molded PPS Components<\/h2>\n
      \n
    • Automotive Under-the-Hood (IATF 16949 Certified):<\/strong> Water pump impellers, thermostat housings, heater valves, cooling fluid pipes, throttle bodies, and fuel injection systems.<\/li>\n
    • Electrical & Electronic Hardware:<\/strong> High-density connectors, coil bobbins, micro-switches, relay sockets, transistor packages, and semiconductor test sockets.<\/li>\n
    • Fluid & Chemical Handling:<\/strong> Chemical chemical pump housings, boiler water mixing valves, gas flow meters, hot-water pump gears, and high-pressure gaskets.<\/li>\n
    • Aerospace Structural Fittings:<\/strong> Lightweight brackets, electrical harness connectors, interior structural brackets, and aerospace sensor housings.<\/li>\n<\/ul>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"

      Comprehensive PPS Grades & Brands We Mold We process high-rigidity, high-temperature PPS formulations from world-renowned producers, supporting strict tolerances and extreme thermal environments: PPS Material Class Typical Brand & Grade Key Characteristics & Advantages Glass-Fiber Reinforced (GF) \u2022 Toray Torcon 1140-A6 \/ 1140-T6 (40% GF) \u2022 Celanese Fortron 1140L4 (40% GF) \u2022 Solvay Ryton R-4-200 […]<\/p>\n","protected":false},"featured_media":2397,"template":"","meta":[],"material_type":[20],"application_feature":[],"machining_process":[],"class_list":["post-2326","material","type-material","status-publish","has-post-thumbnail","hentry","material_type-high-performance-polymers"],"_links":{"self":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh\/wp-json\/wp\/v2\/material\/2326","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh\/wp-json\/wp\/v2\/material"}],"about":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh\/wp-json\/wp\/v2\/types\/material"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh\/wp-json\/wp\/v2\/media\/2397"}],"wp:attachment":[{"href":"https:\/\/www.jcinjectionmolding.com\/zh\/wp-json\/wp\/v2\/media?parent=2326"}],"wp:term":[{"taxonomy":"material_type","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh\/wp-json\/wp\/v2\/material_type?post=2326"},{"taxonomy":"application_feature","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh\/wp-json\/wp\/v2\/application_feature?post=2326"},{"taxonomy":"machining_process","embeddable":true,"href":"https:\/\/www.jcinjectionmolding.com\/zh\/wp-json\/wp\/v2\/machining_process?post=2326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}