Modified Polypropylene PP with Recycled Glass Fibers – Injection-Grade Engineering Plastic
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 | 10 |
| Specific Gravity | ISO 1183 | 23ºC | g/cm³ | 1.05 |
| Ash | ISO 3451 | 800ºC,30min | % | 20 |
| Mechanical properties |
| Tensile Strength | ISO 527 | 50mm/min | MPa | 30 |
| Tensile Modulus | ISO 527 | 1mm/min | MPa | 2500 |
| Flexural Strength | ISO 178 | 2mm/min | MPa | 55 |
| Flexural Modulus | ISO 178 | 2mm/min | MPa | 2400 |
| Unotched Charpy Impact Strength | ISO 179 | 23ºC | kJ/m2 | 35 |
| Notched Charpy Impact Strength | ISO 179-1/1eA | 23ºC | kJ/m2 | 2 |
| Thermal properties |
| Heat deflection temperature | ISO 75 | 1.80MPa | ºC | 76 |
| Vicat Softening Temp | ISO 306 | 50N | ºC | 102 |
Production Description
PP homopolymer - synthesized through coordination polymerization - exhibits flexural modulus up to 1.7 GPa and Rockwell hardness R80-110. The material's narrow molecular weight distribution enables high-clarity applications when nucleated, while copolymer variants improve low-temperature impact strength.
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.
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