Modified Recycled Polypropylene PP Composite – Glass Fiber
Reinforced Injection Material
Product models in the automotive lighting field
| Properties | Test Method | Test Condition | Unit | Typical Values(dry) |
| Physical properties |
| Melt Flow Rate | ISO 1133 | 230ºC, 2.16Kg | g/10min | - |
| Specific Gravity | ISO 1183 | 23ºC | g/cm³ | 1.05 |
| Ash | ISO 3451 | 650ºC,30min | % | 20 |
| Mechanical properties |
| Yield Strength | ISO 527 | 50mm/min | MPa | 20 |
| Tensile Modulus | ISO 527 | 1mm/min | MPa | 1900 |
| Elongation at Yield | ISO 527 | 50mm/min | % | 5 |
| Flexural Strength | ISO 178 | 2mm/min | MPa | 30 |
| Flexural Modulus | ISO 178 | 2mm/min | MPa | 1800 |
| Notched Impact Strength | ISO 179-1eA | 23ºC | kJ/m2 | 30 |
| Thermal properties |
| Heat Deflection Temperature | ISO 75 | 0.45MPa | ºC | 105 |
| 1.80MPa | ºC | 60 |
| Melting Point | DSC | - | ºC | 165 |
Production Description
PP exhibits semi-crystalline behavior with high-impact resilience,
structural integrity, and organic/acid-base resistance. Applied
across industries including Australian coin manufacturing.
Optimized via glass fibers (30% yields 0.7% shrinkage), metal
additives, or rubber modifications. MFR 1-40 inversely links impact
tolerance to tensile strength, copolymers outperforming
homopolymers. Despite 1.8-2.5% crystalline shrinkage, directional
consistency exceeds HDPE standards.
Key Advantages Over Standard PP
Tailored performance for niche applications.
Cost-effective alternative to engineering plastics like ABS or
nylon.
Retains PP’s inherent benefits (lightweight, chemical resistance)
while addressing weaknesses.
Product application in LED light field
Product application in Switch and Socket
Product application in Toilet-Seat
Company Profile
HMT International is a leading global manufacturer and exporter
specializing in modified plastics, operating under the brand
Chongyuan. Established with a commitment to innovation and
sustainability, we engineer high-performance thermoplastic
compounds tailored to meet the evolving demands of industries
worldwide.
Certified to ISO 9001, ISO 14001, and compliant with RoHS/REACH
standards, we align our operations with global sustainability goals
while delivering exceptional technical support and supply chain
reliability.
3,000+ customized formulations.
500,000+ MT annual production capacity.
25+ years of polymer expertise.
ISO 9001 & ISO 14001 certified facilities.
