Glass Fiber Reinforced Recycled PP: Modified Engineering Plastic for Molding
Product models in the automotive lighting field
| Number | Project | Unit | H40S | Test value | Test Methods |
| 1 | Melt mass-flow rate(MFR) | Nominal value | g/10min | 37 | 37.3 | GB/T 3862 |
| ±37 | Deviation |
| 2 | Isotactic index | | % | >=96.0 | 97.51 | GB/T 2412 |
| 3 | Particle appearance | Color grain | Pc/kg | <=5 | 0 | SH/T 1541-2006 |
| Black grain | Pc/kg | 0 | 0 |
| Large and small grains | g/kg | <=100 | 0.1 |
| Snake skin grains and trailing grains | Pc/kg | report | 25 |
| 4 | Impurities and others | | Pc/kg | no | no | SH/T 1541-2006 |
| 5 | Ash | | % | <=0.030 | 0.014 | GB/T 9345.1 |
| 6 | Tensile properties | Tensile modulus of elasticity(Et) | MPa | >=1200 | 1250 | GB/T 1040 |
| Tensile yield stress(σ y) | MPa | >=30.0 | 30.9 |
| Tensile stress atbreak(σ B) | MPa | >=8.0 | 20.7 |
| Nominal tensile strain at break(ε tB) | % | >=200 | 566 |
| Test conclusion | Qualified |
Production Description
Polypropylen e (PP) is a thermoplastic material used in a wide variety of applications including packaging, labeling, textiles, etc. Due to high processability and low cost, PP is one of the most extensively produced polymers, especially, for auto industry. Pristine PP is resistant to photo-oxidation and thermal oxidation at moderate temperatures. However, PP is sensitive to various external aging environments (such as heat, light, and radiation), and, hence, has a relatively low service temperature.When PP is exposed to high temperatures or to an irradiation environment, the tertiary hydrogen atoms present in PP chains are susceptible to be attacked by oxygen.
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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