Lightweight Reinforced Thermoplastic (LWRT)
Lightweight Reinforced Thermoplastic Material, also known as LWRT, is a glass fiber composite material used in the automotive industry. It is made from glass fiber and polypropylene in a 50:50 mass ratio. It is produced through a process of wrapping, combing, web formation, needle punching, and hot pressing. It has thermoplastic properties and is a GMT material. It offers the advantage of low cost while also providing the benefits of high performance.
Product Description
Lightweight reinforced thermoplastic materials offer numerous advantages that are highly compelling.
- Lightweight Performance: Utilizes lightweight materials, resulting in extremely low density.
- Bending Resistance: Resistant to bending, with bending strength ranging from 50 to 150 MPa.
- Impact Resistance: LWRT exhibits excellent impact resistance, typically ranging from 20 to 50 kJ/m².
- Environmental Friendliness: It has significant environmental advantages, with no harmful substance emissions.
- Flame Retardancy: LWRT has excellent flame retardancy, effectively preventing fire spread.
- Durability: It has a long service life, is resistant to aging, and reduces the need for replacements.
performance table
| Parameter | Typical Value / Range |
|---|---|
| Glass Fiber Content | 20%-50% |
| Matrix Material | Polypropylene (PP) |
| Density | 0.9-1.2 g/cm³ |
| Impact Strength | 20-50 kJ/m² |
| Hot Pressing Temperature | 180-220°C |
| Hot Pressing Pressure | 1-5 MPa |
| Molding Thickness | 1-10 mm |
| Recyclability | 100% Recyclable |
parameter table
| Basis Weight (g/m²) | Thickness (mm) | Lamination Depth (mm) | Tensile Strength MD (N) | Tensile Strength TD (N) |
|---|---|---|---|---|
| 900 | 1.8 | 5-8 | 10 | 7 |
| 1000 | 2.0 | 6-9 | 15 | 12 |
| 1150 | 2.3 | 7-10 | 20 | 16 |
| 1250 | 2.7 | 8-11 | 25 | 20 |
| 1350 | 3.0 | 9-12 | 30 | 24 |
| 1600 | 3.5 | 10-14 | 45 | 35 |
| 1900 | 4.0 | 12-16 | 60 | 45 |
| 2200 | 4.5 | 14-18 | 80 | 60 |
| 2600 | 5.2 | 15-20 | 110 | 85 |
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Application
LWRT materials are suitable for manufacturing underbody shielding protection devices, load-bearing plates, roof linings, door decorations, luggage racks, roof molding, engine hoods, trunk covers, etc.
Basis Weight: 850 – 1200 g/m²
- High strength, light weight
- Good sound insulation and heat insulation
- Excellent moldability and mechanical properties
- Low density, good surface quality, no formaldehyde, environmentally friendly, suitable for automotive interior parts
Basis Weight: 1000 – 2500 g/m²
- Three layers: surface layer + intermediate layer + bottom layer
- Surface Layer: 200-1000 g/m²
- Intermediate Layer: 200-2000 g/m²
- Good sound insulation, low density
- High strength, good toughness
- Good moldability, easy to process
- Green environmental protection, no formaldehyde, suitable for automotive interior parts, environmentally friendly
Basis Weight: 800 + 640 (Estimated: 800 g/m²
)
- High strength, good toughness
- Excellent sound insulation and heat insulation
- High moldability, suitable for complex parts
- Environmentally friendly, no formaldehyde
Basis Weight: 1600 – 2200 g/m²
- High strength, good toughness
- Excellent sound insulation and heat insulation
- High moldability, suitable for complex parts
- Green environmental protection, no formaldehyde, no odor, suitable for automotive interior parts
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