| Application | fibre |
Analysis Project |
Quality Index | Test result |
Test method |
||
Premium |
Qualified |
||||
| Melt mass flow rate, g/10min | 16.0~22.0 |
16.0~22.0 |
21.0 |
GB/T 3682.1-2018 | |
Isotactic index, % |
≥95.0 |
≥95.0 |
95.7 |
GB/T 2412 |
|
Ash content of granules, % (mass fraction) |
≤0.0300 |
≤0.0400 |
0.0297 |
GB/T 9345.1-2008 | |
Tensile yield stress, MPa |
≥31.5 |
≥30.0 |
38.9 |
GB/T 1040.2 | |
Appearance (large and small particles), g/kg |
≤10 |
≤15 |
5 |
SH/T 1541.1 | |
Appearance (snake skin and tailing), pc/kg |
≤10 |
≤15 |
2 |
SH/T 1541.1 | |
| Appearance (black spots and colored), pc/kg | ≤5 | ≤10 | 5 | SH/T 1541.1 | |
| Appearance (black particles), pc/kg | 0 | 0 | 0 | SH/T 1541.1 | |
|
|
|
 |
 |
 |
| Application | fibre |
Analysis Project |
Quality Index | Test result |
Test method |
||
Premium |
Qualified |
||||
| Melt mass flow rate, g/10min | 16.0~22.0 |
16.0~22.0 |
21.0 |
GB/T 3682.1-2018 | |
Isotactic index, % |
≥95.0 |
≥95.0 |
95.7 |
GB/T 2412 |
|
Ash content of granules, % (mass fraction) |
≤0.0300 |
≤0.0400 |
0.0297 |
GB/T 9345.1-2008 | |
Tensile yield stress, MPa |
≥31.5 |
≥30.0 |
38.9 |
GB/T 1040.2 | |
Appearance (large and small particles), g/kg |
≤10 |
≤15 |
5 |
SH/T 1541.1 | |
Appearance (snake skin and tailing), pc/kg |
≤10 |
≤15 |
2 |
SH/T 1541.1 | |
| Appearance (black spots and colored), pc/kg | ≤5 | ≤10 | 5 | SH/T 1541.1 | |
| Appearance (black particles), pc/kg | 0 | 0 | 0 | SH/T 1541.1 | |
|
|
|
|
|
|
