Engineering-Grade Recycled PP with Glass Fiber for Injection
Molding Applications
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 | 0.91 |
| Mechanical properties |
| Tensile Strength | ISO 527 | 5mm/min | MPa | 35 |
| Flexural Strength | ISO 178 | 2mm/min | MPa | - |
| Unotched Charpy Impact Strength | ISO 179-1 | 23°C | kJ/m2 | 6 |
| Notched Charpy Impact Strength | ISO 179 | 23°C | kJ/m2 | NB |
| Other properties |
| Mold Shrinkage | internal test method | flow direction | % | 0.80-1.00 |
| cross flow direction | % | 1.40-1.70 |
| Flammability | TL1010 | - | mm/min | 36 |
Production Description
This crystalline/amorphous PP thermoplastic combines impact
resistance, mechanical durability, and chemical stability against
solvents/acidic-alkaline agents. Key in industrial engineering and
Australian currency. Modified through 30% glass additives (shrinks
to 0.7%), metal fillers, or rubber composites. MFR 1-40 inversely
pairs impact performance with tensile capacity, copolymers
dominating homopolymers. Crystallization causes 1.8-2.5% shrinkage
yet maintains better dimensional precision than HDPE materials.
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.
