What is PP GF30?
PP GF30 is a 30% glass fiber-reinforced polypropylene composite. And LFT-G® PP LGF30 will be a type of performance upgrade material that leverages a matrix of polypropylene infused with 30% long glass fibers. During the injection molding process, these fibers form a robust, three-dimensional skeletal network within the part. This internal structure is the key to the material's remarkable performance, providing superior stress transfer and load distribution compared to standard short-fiber-reinforced plastics. The result is a high-performance "long glass fiber polypropylene" composite that offers an exceptional balance of stiffness, impact strength, and reduced component weight, making it a prime candidate for replacing metal in demanding structural applications.
PP-GF30 Density & Fiber Structure
The density of PP-GF30 (30% glass fiber reinforced polypropylene) typically ranges from 1.11 to 1.15 g/cm³ (1110–1150 kg/m³). Unlike standard short glass fiber plastics where fiber lengths are less than 1 mm, LFT-G® PP-LGF30 (Long Glass Fiber) forms an entangled, three-dimensional internal skeletal network within the resin matrix. This continuous 10–12 mm fiber structure distributes mechanical stress evenly, yielding superior impact strength and dimensional stability while preserving a lightweight 1.11 g/cm³ specific gravity.
Typical Material Properties (LFT-PP-LGF30)
The physical and mechanical values detailed below represent standard metrics recorded inside the LFT-G® Testing Laboratory under Dry-As-Molded (DAM) conditions per ISO standards.
| Property | Test Standard | Value (DAM State) |
|---|---|---|
| Density / Specific Gravity |
ISO 1183 / ASTM D792 |
1.11 ± 0.01 g/cm³ |
| Flexural Modulus | ISO 178 | 5,800 MPa |
| Tensile Strength | ISO 527 | 121 MPa |
| Flexural Strength | ISO 178 | 156 MPa |
| Property | Test Standard | Value |
|---|---|---|
| Charpy Notched Impact (23°C) | ISO 179 | 34-36 kJ/m² |
| HDT (1.80 MPa) | ISO 75 | 155 °C |
| Moisture Absorption | ISO 62 | ≤ 0.03 % |
| Mold Shrinkage | ISO 294-4 | 0.20 - 0.30 % |
Processing Information
Achieving the maximum performance from LFT-G® PP GF30 requires optimized injection molding processes that preserve the integrity of the long glass fibers.
| ①Drying Time | 2-4 hours |
|
Drying Temperature |
80-100°C |
| ② Temperature Zone (Melt) | 220-240°C |
| ③Mold Temperature |
60-80°C |
Multi-Industry Structural Applications
Automotive Front-End Modules & Battery Trays
Front-end modules, instrument panel structures/carriers, door module assemblies, and battery trays demand extreme structural integrity coupled with minimal component dead weight. Utilizing LFT-G® PP-LGF30 leverages a low 1.11 g/cm³ density to trim component weight by over 30% versus steel or cast aluminum. The interconnected long fiber network maintains dimensional tolerances under engine heat and vehicle vibration, ensuring crash safety and extended service life.
Appliance Washing Machine Drum Brackets
Inner drum support structures for high-spin washing machines, air conditioner brackets, and dishwasher bases require long-term fatigue endurance when submerged in hot detergent water. The hydrophobic polypropylene matrix limits moisture swelling (≤0.03%), preserving dynamic flexural strength during rapid spin cycles. Appliance original equipment manufacturers benefit from leak-free assemblies, zero rust risk, and reduced warranty claims.
Industrial Corrosion-Resistant Pumps & Fans
Corrosion-resistant chemical pumps, industrial fans, water filtration systems, and mechanical support frames operate under heavy fluid shear and corrosive chemical exposure. The low specific gravity reduces rotational inertia on pump impellers and fan blades, improving motor energy efficiency while completely eliminating galvanic corrosion issues common in metal components.
PP-LGF30 vs. Nylon (PA6-GF30)
When evaluating weight and moisture stability, PP-LGF30 offers distinct advantages over glass-filled nylon (PA6-GF30). Nylon exhibits a higher density (~1.36 g/cm³) and absorbs up to 2.5% atmospheric moisture, causing dimensional expansion and up to a 50% drop in tensile modulus. In contrast, LFT-G® PP-LGF30 maintains a low density of 1.11 g/cm³ and near-zero moisture absorption (≤0.03%), making it a stable alternative to materials like nylon (PA6-GF30) in certain structural applications where water exposure or strict weight limits apply.
Benefits of Long Fiber PP LGF30
- Superior impact resistance, especially at low temperatures.
- High strength and stiffness for load-bearing parts.
- Excellent dimensional stability and minimal warpage.
- Enhanced long-term durability and fatigue resistance.
- Significant lightweighting potential over metals.
- Good chemical resistance and thermal stability.
Hot Tags: LFT-G® PP GF30 (LGF30) Density & Material Properties, China, manufacturers, suppliers, factory, buy, customized
