Flame retardant polypropylene beads pP plastic pellets For Air Duct
PP Plastic Granules Raw Material For Air Duct Granule Plastic Industy
Polypropylene PP, also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. It is produced via chain-growth polymerization from the monomer propylene.
Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly harder and more heat resistant. It is a white, mechanically rugged material and has a high chemical resistance.With a very high melt fluidity, high transparent impact resistance. Good mechanical properties and machining properties.
Specification
| 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 | |||
| Test conclusion | Qualified | |||||
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