Engineering-Grade GF-PP – Halogen-Free Toughened Molding Pellets
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 |
| Deviation | ±37 |
| 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 |
Production Description
Polypropylene is a non-toxic, odorless, tasteless, milky white highly crystalline polymer with a density of only 0.90--"0.91g/cm3, which is one of the lightest varieties of all plastics.Polypropylene also includes copolymers of propylene and a small amount of ethylene. Usually translucent colorless solid, odorless and non-toxic.
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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