LFT-G® LGF50-PP Polypropylene Natural Grade
Product name: LFT-G® LGF50-PP long Glass Fiber Reinforced Polypropylene Composite For injection mold
Product Model: ● LFT-G® PP-NA-NG05
Product Length: ● 5-25 mm. General length 10-12 mm.
Resin type: ● Polypropylene
Fiber type : ● Long Glass Fiber
Fiber content: ● 50%
Color ： ● black, nature color
material properties: ● Injection molding, natural grade, good mechanical properties, for inject automotive parts.
What is LGF50 PP material?
LFT-G® LGF50-PP is a 50% long glass fiber reinforced Polypropylene (PP) thermoplastic composite manufactured using a pultrusion process that melt impregnates the fiber with the matrix resin to maximize performance.LFT-G® LGF50-PP has high mechanical properties, excellent chemical resistance, flexibility, ease of processing, and wide range of applications make it a popular choice among manufacture for automotive parts.
LFT-G® LGF50-PP material is a type of Polypropylene (PP) that has 50% Long Glass Fibers (LGF) added to it. The fibers are typically 5-25 mm long and are oriented in a random direction within the matrix. The addition of LGF enhances the stiffness, strength, and impact resistance of the PP, making it ideal for use in demanding applications such as automotive and industrial components.
Key Specifications of PP-LGF50
Specifically engineered for heavy structural components, LFT-G® PP-LGF50 delivers optimized physical strength profiles, providing a dependable combination of high flexural modulus and dynamic impact durability.
PP LGF50 vs. Standard PP GF50 (Short Fiber)
Unlike short glass fiber (SGF) composites, LFT-G® PP LGF50 utilizes long fibers (typically 10–12 mm in the pellet) that form an integral, interlocking 3D skeletal network within the polypropylene matrix during the molding process. It is designed to offer superior resistance to creep and fatigue compared to unreinforced or short-fiber PP. Standard short-fiber compounds rely on fractured, tiny glass fragments that fracture under impact loads. This continuous long fiber matrix distributes dynamic stress, suppressing cracking propagation under continuous cyclic fatigue.
Standard Short PP GF50
- Fibers fracture easily under heavy mechanical loads.
- Isotropic shrinkage leads to dimensional warping.
- Higher screw and mold abrasion during plastication.
LFT-G® PP LGF50 (Long Fiber)
- Continuous fiber network (10-12mm pellet).
- Over 2.5x higher impact toughness and durability.
- Low shrinkage (0.1%-0.2%) prevents part deformation.
Typical Material Properties (LFT-PP-LGF50)
The typical properties detailed below represent standard metrics recorded inside the LFT-G® testing facility under DAM conditions. Testing complies strictly with verified ISO standards.
| Property | Test Standard | Value (DAM State) |
|---|---|---|
| Tensile Modulus | ISO 527 | 11,500 MPa |
| Tensile Strength | ISO 527 | 148 MPa |
| Flexural Strength | ISO 178 | 208 MPa |
| Charpy Notched Impact (23°C) | ISO 179 | 45-52 kJ/m² |
| Property | Test Standard | Value |
|---|---|---|
| Density | ISO 1183 | 1.32 g/cm³ |
| HDT (1.80 MPa) | ISO 75 | 159 °C |
| Mold Shrinkage | ISO 294-4 | 0.10 - 0.20 % |
Processing Guidelines – Injection Molding
Pre-drying
90–100°C / 2–4h
Moisture < 0.1%
Injection
Melt 210–250°C
Mold 38–69°C Pressure 80–120 MPa
What is PP long fiber used for?
The LFT-G® LGF50 PP (one of long fiber PP) material finds numerous applications in various industries. Some of the popular applications include:
1. Automotive Components:
LFT-G® LGF PP material is commonly used in automotive components such as dashboards, door panels, and trunk liners.
2. Electrical and Electronic Components:
LFT-G® LGF PP material is used in electrical and electronic components such as circuit breakers, connectors, and switches.
3. Consumer Goods:
LFT-G® LGF PP material is used in consumer goods such as furniture, sports equipment, and toys.
Application Cases
Commercial Appliance Tub Supports
Heavy-duty home and commercial washing machines require component dimensions to remain unchanged when submerged in hot water and chemical detergents. Our compound integrates a dense 50% fiber structural layer, enabling the outer tub bracket to withstand strong rotational fatigue. This completely eliminates dynamic fatigue warping during spin-dry cycles. Appliance manufacturers benefit from permanent structural alignment, leak-free operation, and lower maintenance claims over long cycles.
Heavy-Load Ventilation Fan Blades
Industrial ventilation shrouds and cooling tower fan blades are molded from high-modulus LFT-G® PP-LGF50. It acts as a lightweight replacement for die-cast aluminum alloys, reducing component weight by up to 40% while preserving strict dimensional tolerances under continuous centrifugal stresses. This lowers rotor inertia, improves fan air volume efficiency, and eliminates corrosion hazards.
Hot Tags: lft-g® lgf50 pp composite, China, manufacturers, suppliers, factory, buy, customized
