What is PP-GF30?
PP-GF30 broadly defines a 30% glass fiber-reinforced polypropylene composite material widely specified in industrial manufacturing. Building upon this standard compound, LFT-G® PP LGF30 delivers a specialized performance-upgrade formulation that integrates a matrix of polypropylene infused with 30% continuous long glass fibers. During injection molding, these continuous fibers form an entangled 3D skeletal network inside the part. This internal reinforcement yields exceptional mechanical load distribution, low warpage, and elevated impact strength, allowing engineers to replace traditional metals and short-fiber compounds in demanding structural applications.
Key Specifications of PP-LGF30 Polymer
Engineered for high-rigidity structural parts, LFT-G® PP-LGF30 polymer provides a balanced mechanical profile combining a 6,500 MPa tensile modulus with superior dynamic impact resistance.
LFT-G®PP GF30 Data Sheet Long Fiber PP
Mechanical PropertiesMechanical |
Value |
Unit |
Test Standard |
|---|---|---|---|
| Tensile Strength | 112 | MPA | ISO 527 |
| Tensile Modulus | 6500-6800 | MPA | ISO 527 |
| Elongation at Break | 1.5-2.5 | % | ISO 527 |
| Flexural Strength | 155-158 | MPA | ISO 178 |
| Flexural Modulus | 4800-6000 | MPA | ISO 178 |
| Notched Izod Impact Strength | 35-42 | kJ/m² |
ISO 180
|
Other Properties
| Physical | Value | Unit | Test Standard |
|---|---|---|---|
|
Specific Gravity
|
1.11-1.12 |
g/cm³
|
ASTM D-792
|
|
Molding Shrinkage
|
0.2-0.3 | % |
ASTM D-955 |
|
Thermal
|
|||
|
Deflection Temperature (1.8 MPA) |
159 | °C |
ISO 75-2
|
| Melting Temperature | 210-250 | °C | |
|
Mold temperature
|
70-90 | °C |
Core Advantages of PP LGF30
LFT-G®PP GF30 isn't just an incremental improvement; it's a transformative material. The key lies in the long glass fibers, which form an interconnected, skeletal-like network within the polypropylene matrix. This structure is fundamentally superior at dissipating energy and distributing stress compared to the random dispersion of short fibers. Let's explore what this means for your applications.
Exceptional Impact Resistance
The interlocking long fiber network in LFT-G®PP LGF30 provides remarkable energy absorption capabilities. This translates to significantly higher Izod and Charpy impact strength, especially at low temperatures where conventional plastics become brittle. For automotive components like bumpers and front-end modules, or industrial housings subject to potential impacts, this enhanced toughness prevents catastrophic failures, improves product longevity, and enhances safety. It provides a durable-by-design advantage, reducing warranty claims and increasing user confidence.
Optimized Strength-to-Weight
One of the most compelling benefits of LFT-G®PP LGF30 is its ability to replace heavy materials like steel, aluminum, or magnesium without compromising on mechanical performance. With a density around 1.12 g/cm³, it is substantially lighter than metals. This makes it an ideal candidate for lightweighting initiatives in the automotive industry to improve fuel efficiency and in portable power tools or appliances to enhance ergonomics and user comfort. You achieve robust, durable parts that are easier to handle, transport, and assemble.
Enhanced Structural Rigidity
LFT-G®PP LGF30 exhibits a high flexural modulus, meaning it resists bending and deformation under load. This is critical for structural components that must maintain their shape for proper function, such as seat structures, dashboard carriers, or large appliance panels. Furthermore, its excellent creep resistance ensures that parts will not sag or deform over long periods of time, even under constant stress and at elevated temperatures. This long-term dimensional stability guarantees part integrity throughout the product's entire lifecycle.
Superior Dimensional Stability
Precision is key in modern manufacturing. LFT-G®PP LGF30's low and isotropic (uniform in all directions) mold shrinkage minimizes warpage, even in large, complex parts. This predictability and consistency result in higher manufacturing yields, easier assembly, and tighter tolerances. For intricate components like pump housings or electronic enclosures, this dimensional stability ensures a perfect fit and reliable operation, reducing post-molding adjustments and scrap rates.
Where PP GF30 Makes a Difference
The unique property profile of LFT-G®PP LGF30 makes it a versatile problem-solver across numerous industries. It bridges the gap between commodity plastics and high-cost engineering polymers or metals.
Automotive Sector
In the automotive world, every gram matters. LFT-G®PP LGF30 is a key enabler for lightweighting. Applications include: front-end carriers, instrument panel structures, door modules, under-hood components like fan shrouds and battery trays, and seat structures. It replaces metal to reduce weight and system costs, while providing the necessary strength, impact performance (for crash safety), and resistance to automotive fluids.
Industrial & Machinery
For industrial applications, durability is paramount. LFT-G®PP LGF30 is used for pump housings, valve bodies, conveyor components, and power tool casings. Its excellent chemical resistance, high stiffness, and ability to withstand repeated impacts make it a more durable and often more cost-effective choice than die-cast aluminum or other thermoplastics, leading to longer service life and lower maintenance costs.
Appliances & Consumer Goods
From washing machine components like drum supports and balance rings to frames for high-end office chairs and structural elements in sporting goods, LFT-G®PP LGF30 provides a premium feel and long-lasting performance. Its resistance to detergents and moisture, combined with its high strength, allows for innovative designs that are both aesthetically pleasing and functionally robust, enhancing the overall consumer experience.
LFT-G®PP GF30 VS. Other Materials
Choosing the right material involves comparing trade-offs
-
Property LFT-G®PP GF30
(PP LGF30)
PP SGF30 PA6-GF30 Die-Cast Aluminum Density (g/cm³) 1.12 1.22 1.35 2.70 Tensile Strength (MPa) 110-130 60-80 160-180 240-300 Impact Strength (kJ/m²) 45-60 15-20 25-35 N/A Moisture Absorption Very Low Very Low High N/A Relative Cost $$ $ $$$ $$$$ Flexural Modulus(Mpa) 4500-5700 2800-3900 5500-6400 N/A
- vs. PP SGF30 (Short Fiber): LFT-G®PP LGF30, offers vastly superior impact strength (often 2-3x higher), better creep resistance, and higher stiffness at elevated temperatures. It is the clear choice for structural and semi-structural applications.
- vs. PA6-GF30 (Nylon): While PA6-GF30 may have higher temperature resistance and stiffness, it is hygroscopic, meaning it absorbs moisture, which can negatively affect its mechanical properties and dimensional stability. LFT-G®PP GF30 is virtually unaffected by moisture, making it more reliable in humid or wet environments.
- vs. Die-Cast Aluminum: LFT-G®PP GF30 provides significant weight savings (often over 50%), greater design freedom for complex geometries, corrosion resistance, and often lower total system cost due to part consolidation and elimination of secondary finishing operations.
Frequently Asked Questions (FAQ)
Q: What is the typical surface finish of PP GF30 parts?
A: Due to the nature of the long fibers, the surface may show a visible fiber pattern, often described as a "marbled" or "swirled" look. While excellent for structural parts, it may not be suitable for unpainted, high-gloss cosmetic surfaces. However, various texturing and painting techniques can be applied.
Q: Can PP GF30 be recycled?
A: Yes, as a thermoplastic, LFT-G®PP GF30 is recyclable. Post-industrial regrind can often be blended back into virgin material at certain percentages without significant property loss, contributing to a more sustainable manufacturing process.
Q: What is the melting temperature of PP GF30 material?
A: Our LFT-G®PP GF30 is a long glass fiber filled pp composite, LFT-G®PP GF30's melting temperature is 210-250°C,will be higher than PP Short glass fiber reinforced material after filled long glass fiber.
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