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.
