LFT-G® PP GF30 (LGF30) – High Impact Homopolymer
LFT-G® PP GF30 (Model: LFT-G®HPP-NG03) is an advanced thermoplastic composite comprising a stiff Homopolymer Polypropylene matrix reinforced with 30% long glass fiber (LGF).
Unlike standard short fiber compounds, our pultrusion technology preserves continuous 10-12mm fibers within the pellet. This unique structure creates an entangled 3D internal skeleton, delivering a rare combination of high flexural modulus and exceptional impact strength. It is the premier metal replacement material for structural automotive components.
Core Material Advantages:
- ● Extreme Impact Strength: 35 kJ/m² notched impact resistance.
- ● No Compromise Rigidity: 7.5 GPa Modulus from the Homopolymer base.
- ● Lightweight Solution: 20% lighter than standard Nylon (PA6) glass compounds.
- ● Zero Moisture Absorption: Consistent performance in wet environments.
Overcoming the Plastics Engineering Dilemma
The "Stiffness vs. Toughness" Solution
Engineers searching for glass fiber pp often face a tough choice: use Homopolymer for stiffness but accept brittleness, or use Copolymer for toughness but lose rigidity. Standard short fiber PP GF30 routinely fails severe crash impact tests. LFT-G® HPP-NG03 eliminates this compromise. The physical entanglement of the 30% long fiber network acts as a massive shock absorber, boosting impact strength to 35 kJ/m² while maintaining the Homopolymer's rigidity.
Superior Fatigue Endurance
While static strength is important, dynamic durability is critical for moving parts. Short fiberglass tends to debond from the resin matrix under cyclic stress, leading to rapid fatigue failure. Our specialized chemical coupling and long-fiber pultrusion process ensures the fiber network bridges micro-cracks. Components made from NG03 can endure millions of vibration cycles in engine bays without failure.
Technical Data Sheet: LFT-G® HPP-NG03
| Property | Test Standard | Unit | Typical Value |
|---|---|---|---|
| Base Resin | - | - | Homo-Polypropylene |
| Fiber Content | ISO 1172 | % | 30% Long Fiber |
| Density | ISO 1183 | g/cm³ | 1.11 - 1.12 |
| Tensile Strength | ISO 527 | MPa | 118 - 125 |
| Flexural Modulus | ISO 178 | MPa | 6,800 - 7,700 |
| Notched Impact Strength | ISO 179 | kJ/m² | 35 - 38 |
| HDT (1.80 MPa) | ISO 75 | °C | 156 |
Applications: Where Toughness Meets Rigidity
Automotive Shifter Bases & Carriers
Center console shifter mechanisms require high stiffness to prevent "mushy" shift feels, but must pass severe knee-impact crash tests. LFT-G® HPP-GF30-NG03 provides the rigid Homopolymer feel combined with the 35 kJ/m² crash-safety toughness, eliminating the need for expensive moisture-absorbing PA6-GF30.
Industrial Fan Blades
Large HVAC fans face immense centrifugal forces and cyclic vibrations. Standard short fiber plastics eventually snap under these conditions. The 30% long fiber network ensures long-term dimensional stability and prevents blade fracture, dramatically extending the equipment's service life.
Frequently Asked Questions (FAQ)
Q: Is Homo-PP GF30 stronger than Copo-PP GF30?
A: Yes, in terms of stiffness and tensile strength. Homo-PP (NG03) has a more crystalline structure, making it stiffer (Modulus ~7.5 GPa) and more heat resistant than Copo-PP. With long fiber reinforcement, it also overcomes the traditional brittleness of homopolymers, offering the best of both worlds.
Q: What is the impact strength of LFT-G® PP GF30?
A: Our HPP-GF30-NG03 grade offers an incredible Notched Izod Impact strength of 35 kJ/m². This is significantly higher than standard short fiber PP GF30 (which is typically only 10-15 kJ/m²), making our material highly suitable for crash-relevant automotive parts.
Q: Can this material replace PA6 GF30 (Nylon)?
A: Often, yes. Nylon (PA6) absorbs moisture from the air, which weakens it and changes its dimensions. LFT-G® PP GF30 absorbs virtually zero moisture, ensuring consistent strength in wet conditions. It is also 20% lighter, providing a significant cost and weight advantage.
Ready for High-Impact Performance?
Don't compromise between stiffness and toughness. Contact the LFT-G® engineering team for material selection and pricing.
Request LGF30 Quote
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