Injection-Moldable Recycled Polypropylene PP: Glass Fiber
Reinforced Modified Plastic
Product models in the automotive lighting field
| Properties | Test Method | Test Condition | Unit | Typical Values |
| Physical properties |
| Specific Gravity | ISO 1183 | 23ºC | g/cm3 | 1.06 |
| MI | ISO 1183 | | g/10min | 10 |
| Mechanical properties |
| Tensile Strength | ISO 527 | 50mm/min | MPa | 28 |
| (fracture) elongation | ISO 527 | 50mm/min | % | 50% |
| Flexural Modulus | ISO 178 | 2mm/min | MPa | 2200 |
| Notched Charpy Impact Strength | ISO 179/1eA | 23ºC | J/m | 25 |
| Thermal properties |
| Heat deflection temperature | ISO 75 | 0.45MPa | °C | 125 |
| Mold Shrinkage | internal test method | 48 hours after tool | | 0.9-1.2 |
| Melting Point | DSC | - | C | |
Production Description
Polypropylene (PP) is a versatile thermoplastic created through
propylene monomer polymerization. This semi-crystalline polyolefin
offers superior chemical resistance and thermal stability compared
to polyethylene, with enhanced rigidity while maintaining
lightweight characteristics. As the second most manufactured
plastic globally, its opaque appearance and mechanical durability
make it ideal for industrial and consumer applications.
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.
