LFT-G® PP GF30 (LGF30) – Extreme Structural Homopolymer
Tensile Strength Comparison Curve Sheet
LFT-G® PP GF30 (Model: LFT-PP GF30-NG03) is an advanced engineering composite featuring a high-crystallinity Homopolymer Polypropylene matrix reinforced with 30% continuous long glass fiber. By utilizing our proprietary pultrusion technology, we maintain a 10-12mm fiber skeleton that delivers a rare combination of 5.5 GPa stiffness and 38 kJ/m² impact strength.
Core Engineering Highlights:
- ● Impact Mastery: 3X the notched impact resistance of standard short fiberglass compounds.
- ● Dimensional Stability: Zero moisture absorption, outperforming Nylon (PA6) in humid environments.
- ● Metal Replacement: Replaces die-cast aluminum and zinc with 50% weight reduction.
- ● Fatigue Resistance: Survives millions of high-frequency vibration cycles in engine bays.
Selection Logic: Why LFT-PP LGF30 Beats Standard PP GF30?
Western design engineers typically choose between Homopolymer (for stiffness) or Copolymer (for toughness). LFT-G® PP LGF30 NG03 removes this limitation by providing Homopolymer rigidity without the brittleness.
Crash Safety Performance
Standard glass fiber pp shatters upon impact. LFT PP LGF30 NG03 uses its internal 3D fiber network to bridge cracks, absorbing energy during low-speed vehicle collisions.
Long-Term Creep Resistance
Under constant load, standard plastics deform. LGF30 creates a structural mesh that locks the polymer chains, preventing dimensional creep in brackets and frames.
Technical Specifications: LFT-PP GF30-NG03
| Property | Test Standard | Unit | Typical Value |
|---|---|---|---|
| Base Resin | - | - | Homopolymer PP |
| 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 | 5,500 - 6,600 |
| Notched Impact Strength | ISO 179 | kJ/m² | 38 - 42 |
Industry Applications: Metal-Replacement Solutions
Automotive Shifter Bases
Center console shifter mechanisms require high stiffness for a crisp feel and high impact resistance for crash safety. LFT-G® PP LGF30 replaces heavy die-cast metal and moisture-sensitive PA6-GF30, providing a 25% cost reduction and absolute dimensional precision.
Industrial HVAC Fan Blades
High-speed rotating blades face immense centrifugal forces and cyclic vibration. Standard short fiber plastics eventually fatigue and snap. Our 30% long fiber matrix ensures the blades stay perfectly rigid at high RPMs without the risk of stress cracking.
Frequently Asked Questions (FAQ)
Q: How does PP LGF30 compare to PA6 GF30 in humid conditions?
A: Polyamide 6 (Nylon) absorbs moisture, which can lead to a 50% drop in stiffness and dimensional changes. PP LGF30 absorbs zero moisture. It maintains its full mechanical properties and dimensions in wet or submerged applications, often replacing Nylon at a lower cost.
Q: What is the benefit of the Homopolymer base in NG03?
A: Homopolymer PP has higher crystallinity, yielding superior stiffness (Modulus) and heat resistance compared to Copolymer. By reinforcing it with long glass fiber, we overcome the traditional brittleness of Homopolymers, creating a material that is both very stiff and very tough.
Q: Can this material be processed on standard injection machines?
A: Yes. No special machinery is required. However, to preserve the fiber length, we recommend using low back-pressure and generous gate sizes. Our engineering team provides detailed molding guides for first-time LGF users.
Looking for High-Impact Performance?
Don't compromise on durability. Contact the LFT-G® engineering team for material selection and ROI analysis.
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