PPS-Polyplastics Durafide 1140A6
Replacing die-cast aluminum and brass in severe, high-temperature automotive cooling and fluid-handling systems requires exceptional weld strength and chemical resistance, which Polyplastics’ Durafide 1140A6 delivers through its 40% glass fiber reinforced linear polyphenylene sulfide (PPS) matrix. Featuring a density of 1.66 g/cm³ and a heat deflection temperature (HDT) of 270°C, this high-stiffness grade provides a massive flexural modulus of 14,000 MPa and excellent resistance to hot water and glycols. Jucheng Precision, operating under IATF 16949 and ISO 9001 frameworks, specializes in molding Durafide 1140A6. Utilizing 5-axis CNC-machined H13 steel toolings, we manage its low-viscosity flash tendencies (gaps < 0.005mm) to deliver pristine parts verified by Zeiss CMM.
Durafide 1140A6 Linear PPS Strength & Thermal Limits
DURAFIDE® 1140A6 is a 40% glass fiber reinforced polymer utilizing a linear polyphenylene sulfide (PPS) matrix. This chemical structure delivers enhanced elongation, toughness, and weld strength over conventional cross-linked PPS resins:
| Physical & Mechanical Parameter | DURAFIDE 1140A6 Standard Metric | Engineering Advantage for Fluidics |
|---|---|---|
| Tensile Strength | 210 MPa (ISO 527-1,2) | Provides exceptional structural strength and high elongation (1.9%), allowing it to replace brass and die-cast zinc in plumbing and auto components. |
| Flexural Modulus | 14,000 MPa (ISO 178) | Delivers extreme mechanical stiffness and resistance to dynamic load deflection, critical for high-speed water pump impellers. |
| Heat Deflection (HDT) | 270 °C (DAM @ 1.80 MPa) | Maintains unyielding mechanical properties under high continuous heat, perfectly suited for printer fuser units and engine surroundings. |
Structural Component Process Configurations for Durafide 1140A6
With its high-toughness linear matrix, Durafide 1140A6 is highly optimized for complex mechanical and fluid assemblies:
| Molding Technology | Molding Compatibility & Operational Details |
|---|---|
| Automotive Cooling & Water Pumps | Excellent. Configured with pressurized oil heating to mold water pump impellers, thermostat housings, and engine coolant connections with high weld-strength. |
| Multifunctional Printer Fuser Units | Excellent. Outstanding dimensional stability, low outgassing, and high paper roll unit gear wear life prevent structural distortion under high heat. |
| Hot-Water Mixing Valves & Faucets | Excellent. Complies with global drinking water regulations. Highly resistant to chlorine, hot-water hydrolysis, and calcium scale buildup in home showerheads. |
PPS-Polyplastics Durafide 1140A6 Tooling & Flash Control Guide
Molding a linear 40% glass-fiber reinforced PPS like Durafide 1140A6 requires strict control of parting line clearances to prevent flashing, alongside high mold temperatures:
Micron-Level Flash Control (Tooling Precision)
Because Durafide 1140A6 exhibits high flowability (low melt viscosity of 260 Pa·s), molten resin can seep easily into minor mold gaps, causing parting line flash. Jucheng’s tooling division uses 5-axis CNC machines to achieve micro-tolerances, keeping mold parting clearances strictly within 0.005mm on premium S136 stainless steel mold cavity blocks.
Oil-Heated Mold Temperature Controls (Crystallization)
Pressurized oil heaters are mandatory to keep mold temperatures at 130°C–150°C (266°F to 302°F). Low mold temperatures (below 90°C) prevent the optimal semi-crystalline phase from forming, which severely degrades mechanical strength, chemical resistance, and dimensional stability over time.
Managing High Fiber Abrasive Wear
40% short glass fibers act as an abrasive medium under high injection speeds. Jucheng’s tooling division prevents cavity erosion by constructing molds with premium hardened tool steel (H13) heat-treated to 50–52 HRC and mirror-polished, ensuring long-term parting line precision and flash-free parts.
Desiccant Drying & Volatiles Exhaust
We dry raw resin in desiccant hopper dryers at 120°C–140°C (248°F–284°F) for 3–4 hours. This eliminates surface splay and prevents weld-line micro-voids. Additionally, we cut precise venting slots (0.015mm depth) along the parting line to exhaust volatile gases during high-melt runs.
Key Application Fields for PPS-Polyplastics Durafide 1140A6
- Automotive Under-the-Hood & Fluids (IATF 16949): High-pressure water pump impellers, thermostat housings, heater valves, cooling fluid pipes, throttle bodies, and fuel injection systems.
- Electrical, Office & Printers: High-density connectors, coil bobbins, micro-switches, relay sockets, copier fuser units, combination switches, and printer paper roll unit gears.
- Fluid Handling, Plumbing & Kitchen: Boiler water mixing valves, chemical spray nozzles, household faucet combination valves, showerheads, dispenser pumps, induction stoves, and hot-water couplers.
Properties
| Density | 1.66 g/cm³ |
| Melt Viscosity (310°C, 1000/sec) | 260 Pa·s |
| Tensile Strength at Break | 210 MPa |
| Tensile Elongation at Break (DAM) | 1.9 % |
| Flexural Strength | 290 MPa |
| Flexural Modulus | 14,000 MPa |
| Charpy Notched Impact Strength (23°C) | 11 kJ/m² |
| Melting Temperature | 282 °C |
| Heat Deflection Temperature (HDT @ 1.80 MPa) | 270 °C |
| Linear Mold Shrinkage (Flow Direction) | 0.15 - 0.30 % |
| Linear Mold Shrinkage (Cross Direction) | 0.40 - 0.60 % |
| Volume Resistivity | 5.0E+15 Ohm·cm |
| Dielectric Strength (3mm) | 16 kV/mm |
| Maximum Part Size | 800 x 600 mm |
| Minimum Part Size | 1 x 1 mm |