What is PP GF50: long Glass fiber PP Composite.
The designation "PP GF50" refers to a high-performance grade of Polypropylene (PP) composite material reinforced with 50% Glass Fibers (GF) by weight. The versatile polypropylene base resin is transformed by this very high fiber loading into a robust engineering thermoplastic with exceptional strength, stiffness, and thermal performance. However, a critical distinction that defines the ultimate capability of a PP GF50 polymer lies in the length of its reinforcing fibers. LFT-G® PP GF50 represents the pinnacle of this material class, utilizing advanced Long Glass Fiber Technology (LFT). Unlike conventional short glass fiber (SGF) polypropylene, the long fibers in LFT-G® PP GF50 form a comprehensive, interlocking internal skeletal network. This structure is key to delivering vastly superior impact resistance, creep endurance, and overall structural integrity, making it an ideal choice for the most demanding lightweight components.
LFT-G® PP-GF50 Datasheet long fiber PP
Mechanical PropertiesProperty |
Typical Value |
Unit |
Test Standard |
|---|---|---|---|
| Tensile Strength | 145 - 155 | MPa | ISO 527-1/-2 |
| Tensile Modulus | 11,000 - 12,000 | MPa | ISO 527-1/-2 |
| Elongation at Break | 1.5 - 2.5 | % | ISO 527-1/-2 |
| Flexural Strength | 200 - 210 | MPa | ISO 178 |
| Flexural Modulus | 9,000 - 11,000 | MPa | ISO 178 |
| Notched Izod Impact Strength (23°C) | 42 - 64 | kJ/m² |
ISO 180/1A
|
Other Properties
| Property | Typical Value | Unit | Test Standard |
|---|---|---|---|
|
Density
|
1.31- 1.32 |
g/cm³
|
ISO 1183
|
|
Linear Mold Shrinkage (Flow / Transverse)
|
0.1-0.2 / 0.2-0.4 | % |
ISO 294-4 |
|
Heat Deflection Temperature (1.8 MPa) |
160 - 163 | °C |
ISO 75-2/A
|
| Melting Temperature (DSC) | 160 - 170 | °C | ISO 11357-3 |
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Core Advantages of PP GF50
LFT-G® PP GF50 is engineered as a transformative material solution. The key to its superior performance lies in the 50% long glass fibers that form an interconnected, skeletal network within the polypropylene matrix. This structure is fundamentally better at dissipating energy and distributing stress compared to the random dispersion of short fibers. For your applications, this unlocks the following core advantages:
- Maximum Achievable Impact Strength & Toughness
- Exceptional Tensile and Flexural Strength
- Extreme Stiffness and Structural Rigidity
- Outstanding Dimensional Stability & Minimal Warpage
- Superior Creep Resistance Under Sustained Load
- Excellent Fatigue Endurance for Dynamic Applications
- High Heat Deflection Temperature for Thermal Stability
What is PP GF50 used for?
The extreme property profile of LFT-G® PP GF50 makes it the material of choice for the most challenging applications across industries, particularly where metal replacement is sought for weight reduction without compromising performance.
Automotive Part
In the automotive sector, LFT-G® PP GF50 is specified for the most demanding structural components. Its high stiffness and strength make it ideal for large, integrated front-end modules, robust battery housings for electric vehicles requiring maximum crash protection, and large tailgate inner structures where rigidity over a wide surface area is critical. Its ability to replace heavy metal parts leads to significant vehicle lightweighting, enhancing fuel efficiency and handling dynamics.
Industrial Fan Blade Part
For heavy-duty industrial applications, LFT-G® PP GF50 provides unparalleled durability. Its use in large industrial fan blades ensures high rotational stability and fatigue resistance, critical for safety and efficiency. It is also ideal for robust pump housings, valve bodies operating under high pressure, and structural components in heavy machinery and conveyor systems where it offers a lightweight, corrosion-proof, and high-strength alternative to cast metals.
Electrical Appliances Hosing Part
While "hosing" suggests simpler parts, LFT-G® PP GF50 is used for the most demanding *structural* components within appliances. This includes washing machine structural support rings and chassis that must endure extreme dynamic loads and vibration, robust frames for large appliances, and high-performance components in sporting goods. Its ability to be molded into complex, rigid shapes provides a premium, long-lasting alternative to metal frames, enhancing product reliability and longevity.
LFT-G®PP GF50 VS. Other Materials
Choosing the right material involves comparing trade-offs in performance and cost. Here's how LFT-G® PP GF50 stacks up.
| Property |
LFT-G® PP GF50(LGF50) |
PP SGF50 | PA6-GF30 | Die-Cast Aluminum |
|---|---|---|---|---|
| Density (g/cm³) | 1.32 | ~1.27 | ~1.36 | ~2.70 |
| Tensile Strength (MPa) | 145 | ~90 | ~170 | ~280 |
| Impact Strength (Notched Izod, kJ/m²) | 45 | ~15 | ~30 | N/A (Ductile) |
| Moisture Absorption | Very Low | Very Low | High | N/A (Corrodes) |
| Relative Cost | $$$ | $$ | $$$ | $$$$ |
| Flexural Modulus (MPa) | ~10,500 | ~9,500 | ~6,000 | ~69,000 |
- vs. PP SGF50 (Short Fiber): LFT-G® PP GF50 offers vastly superior impact strength (often 3-5x higher) and significantly higher tensile strength. It is the definitive choice for structural parts where durability and failure resistance are paramount.
- vs. PA6-GF30 (Nylon): While PA6-GF30 may offer higher ambient temperature tensile strength, it is hygroscopic-it absorbs moisture, which negatively affects its mechanical properties and dimensional stability. LFT-G® PP GF50 is virtually unaffected by moisture, making it more reliable in humid or wet environments, and it boasts superior stiffness.
- vs. Die-Cast Aluminum: LFT-G® PP GF50 provides dramatic weight savings (over 50%), greater design freedom for consolidating parts into complex geometries, inherent corrosion resistance, and frequently lower total system cost by eliminating secondary finishing operations.
Frequently Asked Questions (FAQ)
Q: Is polypropylene PP safe? Is it recycled?
A: Yes, polypropylene (PP) is considered a safe plastic for a wide range of applications and is designated by recycling code #5. While virgin PP is readily recyclable, reinforced composites like LFT-G® PP GF50 may require specialized industrial recycling streams to properly separate the polymer from the glass fibers.
Q: Is PP the same as polypropylene?
A: Yes, "PP" is the standard industry abbreviation for the polymer polypropylene. When you see terms like PP GF50, it stands for Polypropylene reinforced with 50% Glass Fiber.
Q: How about your payment term?
A: We offer flexible payment terms tailored to our customers' needs and the scale of the order. Our sales team works with clients to establish mutually beneficial arrangements. For detailed information on payment options for LFT-G® PP GF50, please contact us directly to discuss your project requirements.
Why choose US
Partner with the Experts in Long Fiber Technology
✓ Uncompromising Quality: Strict quality control systems to ensure batch-to-batch consistency and peak performance.
✓ Collaborative Technical Support: We offer expert guidance on material selection, part design optimization for LFT, mold flow analysis, and processing support.
✓ Custom Formulation Expertise: We can develop custom LFT-G® PP GF50 formulations with tailored properties, including UV stabilization, custom colors, and enhanced heat resistance.
✓ Reliable Global Supply Chain: With robust production capabilities and an agile supply chain, we keep your production lines running smoothly.
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