Scenario: The "Unforgiving Environment" Solution
The Challenge: Your component operates inside a chemical pump or an EV thermal management system. It faces hot glycol, acidic oil, or jet fuel at 200°C. Metals corrode; nylon melts or swells.
The LFT-G® Solution: We combine the "Super Engineering Plastic" PPS with 40% long carbon fiber.
- PPS resin is inherently chemically inert and flame retardant (V0), reinforced by a rigid carbon skeleton.Unlike PA66, PPS does not absorb moisture and does not swell in chemicals. It maintains micron-level dimensional stability.
- Benefit: You get the lifespan of stainless steel at 1/5th the weight, eliminating corrosion-related warranty claims and reducing system mass.
Figure 1: PPS CF40 excels where chemicals destroy other plastics.
Why LFT-G® Long Carbon Fiber Material?
- Extreme Heat Resistance: Continuous use temperature > 240°C, withstands soldering peaks up to 280°C.
- Chemical Immunity: Insoluble in any known solvent below 200°C; perfect for aggressive fuels and acids.
- Metal-Like Precision: 40% Long Carbon Fiber provides a near-zero coefficient of thermal expansion (CLTE), rivaling aluminum.
- Super Toughness: LFT technology overcomes the inherent brittleness of PPS, offering superior impact strength compared to short fiber compounds.
Quality: The "Zero Creep" Standard
The Physics of LCF: Engineers searching for PPS CF40 often worry about brittleness. Standard Short Carbon Fiber PPS snaps easily under impact.
- Feature: LFT-G® maintains fiber lengths of 10-12mm within the pellet. These fibers form an interlocked 3D network inside the part.
- Advantage: This network prevents crack propagation (increasing toughness) and resists "Cold Flow" or Creep under high torque loads.
- Benefit: Enables the replacement of complex die-cast aluminum housings without machining. You achieve tighter tolerances (low warpage) and lower per-part cost in mass production.
Figure 2: Long Carbon Fiber network prevents creep and warping.
Technical Data Sheet (Model: LFT-G® PPS-BC04A)
| Property | Test Standard | Unit | Typical Value |
|---|---|---|---|
| Base Resin | - | - | Polyphenylene Sulfide (PPS) |
| Fiber Content | ISO 1172 | % | 40% Long Carbon Fiber |
| Density | ISO 1183 | g/cm³ | 1.39 |
| Tensile Strength | ISO 527 | MPa | 190 - 210 |
| Tensile Modulus | ISO 527 | GPa | 32.0 - 33.0 |
| Flexural Strength | ISO 178 | MPa | 266 - 280 |
| Notched Impact Strength | ISO 179 | kJ/m² | 28 - 34 |
| HDT (1.80 MPa) | ISO 75 | °C | > 265 |
| Flammability | UL 94 | - | V-0 |
Case Study: Hydrogen Fuel Cell Bipolar Plates
The Project
A new energy vehicle manufacturer needed a material for hydrogen fuel cell bipolar plates. The material had to be conductive, withstand highly acidic environments, and maintain flatness under thermal cycling.
The LFT-G® Advantage
LFT-G® PPS-LCF40 (BC04A) was selected over machined graphite. The 40% carbon content provided excellent conductivity and EMI shielding. The PPS matrix offered immunity to the acidic byproduct of the fuel cell. The injection molding process reduced per-part cost by 70% compared to CNC graphite.
Advanced Applications: High-End Engineering
People Also Ask (Google PAA)
Q: PPS CF40 vs. PEEK CF30: Which is better?
A: It depends on the budget. PEEK offers slightly higher temperature performance (260°C continuous), but costs 3-4x more than PPS. For applications under 220°C requiring extreme chemical resistance and stiffness, LFT-G® PPS CF40 offers the best cost-performance ratio.
Q: Is PPS CF40 suitable for explosion-proof areas?
A: Yes. With 40% carbon loading, the material is statically dissipative/conductive. It prevents the buildup of static electricity (ESD), making it safe for fuel handling systems and ATEX environments.
Q: Does PPS CF40 corrode?
A: No. Unlike aluminum or steel, PPS is immune to corrosion from salt spray, acids, and bases. It requires no anodizing or protective coating, simplifying production.
Partner with the Super Polymer Experts
From harsh chemicals to extreme heat, we provide the material solutions that survive.
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