LFT-G® PP GF30 (CPP-NG03): Structural Rigidity PP with 30% Long Glass Fiber
- Metal Replacement: High flexural modulus (6+ GPa) allows replacement of steel brackets and aluminum housings.
- Fatigue Resistance: 30% long fiber network withstands continuous vibration and cyclic loading without cracking.
- Creep Resistance: Maintains shape under constant load over time, far superior to standard short fiber PP GF30.
- Weight Reduction: Achieves structural requirements at 20% less weight than reinforced Nylon (PA6).
Scenario: Structural Fatigue Failure
Feature-Advantage-Benefit: When engineers specify PP GF30 for structural parts like front-end modules or fan shrouds, the hidden danger is fatigue. Short glass fibers disconnect under vibration, leading to sudden cracks. LFT-G® CPP-NG03 incorporates 30% Long Glass Fibers that form an entangled 3D skeletal network. This feature dissipates stress energy across the entire part rather than localizing it (Advantage). The benefit to you is a component that survives millions of vibration cycles in automotive or industrial environments, preventing warranty claims and field failures where standard materials would snap.
Quality: Load Bearing Capacity
Feature-Advantage-Benefit: The core strength of LFT-G® NG03 lies in its high fiber volume (30%) combined with our proprietary impregnation technology that ensures every 12mm fiber is fully coated in PP resin. This creates a composite with a tensile strength exceeding 100 MPa and excellent creep resistance (Advantage). While standard PP flows and deforms under heavy static loads over time, our Long Fiber PP holds its dimensions. This allows you to design load-bearing brackets and heavy-duty housings (Benefit) that replace metal, saving cost and weight without risking structural integrity.
Technical Data Sheet (Model: LFT-G® CPP-NG03)
| Property | Test Standard | Unit | Typical Value |
|---|---|---|---|
| Base Resin | - | - | Polypropylene (PP) |
| Fiber Content | ISO 1172 | % | 30% Long Glass Fiber |
| Density | ISO 1183 | g/cm³ | 1.12 |
| Tensile Strength | ISO 527 | MPa | 121 - 126 |
| Tensile Modulus | ISO 527 | GPa | 6.9 - 7.2 |
| Flexural Strength | ISO 178 | MPa | 156 - 167 |
| Notched Impact Strength | ISO 179 | kJ/m² | 38 - 45 |
| HDT (1.80 MPa) | ISO 75 | °C | 158 |
Case Study: Panoramic Sunroof Frame
The Challenge
An automotive Tier-1 supplier needed to replace a steel sunroof reinforcement frame to meet new EV weight targets. The part spans the entire roof and requires extreme dimensional stability, high stiffness to support the glass, and UV resistance.
The LFT-G® Solution
LFT-G® CPP-30%LGF (NG03) was chosen. The 30% long glass fiber provided a flexural modulus >6 GPa, sufficient to replace the steel frame with a ribbed plastic design. The long fibers prevented warping over the long span. The result was a 30% weight reduction and integrated mounting points, reducing assembly steps.
Applications: Structural & Industrial
People Also Ask
Q: Can PP GF30 replace metal?
A: Yes, using Long Fiber (LGF30). While standard short fiber PP cannot, LFT-G® PP LGF30 has a high modulus and impact strength that allows it to replace steel brackets and aluminum housings, reducing weight by up to 50%.
Q: What is the fatigue life of PP GF30?
A: Long Glass Fiber PP (LGF30) has significantly higher fatigue endurance than short fiber PP. The entangled fiber network prevents crack propagation, making it ideal for vibrating parts like fans and front-end carriers.
Q: Is reinforced Polypropylene recyclable?
A: Yes. Unlike thermosets, LFT-G® PP LGF30 is a thermoplastic. It can be reground and remolded (though with some reduction in fiber length), making it an environmentally friendly choice for automotive recycling.
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