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Performance Requirements Of Polyamide Profiles
GB/T 23615.1–2017
|
NO. |
Item |
Unit |
GB/T 23615.1-2017 |
TEDA–Technical specification |
|
|
1 |
Density |
g/cm3 |
1.30±0.05 |
1.30±0.05 |
|
|
2 |
DSC melting peak temperature |
℃ |
≥255 |
≥260 |
|
|
3 |
Testing for tensile cracks |
—— |
No cracks |
No cracks |
|
|
4 |
Shore hardness |
—— |
80±5 |
80±5 |
|
|
5 |
Impact Strength (unnotched in low temperature) |
kJ/m2 |
≥50 |
≥60 |
|
|
6 |
Tensile Strength (longitudinal) |
MPa |
≥90 |
≥100 |
|
|
7 |
Elongation at break(longitudinal) |
—— |
≥3% |
≥3% |
|
|
8 |
Elasticity modulus |
MPa |
≥4 500 |
≥5 000 |
|
|
9 |
Tensile strength |
Type I (Section height﹤20mm) |
MPa |
≥90 |
≥100 |
|
Type I (Section height≥20mm) |
MPa |
≥80 |
≥90 |
||
|
Non-type I |
MPa |
≥25 |
≥30 |
||
|
10 |
High temperature |
Type I (Section height﹤20mm) |
MPa |
≥55 |
≥60 |
|
Type I (Section height≥20mm) |
MPa |
≥45 |
≥50 |
||
|
Non-type I |
MPa |
≥20 |
≥25 |
||
|
11 |
Low temperature |
Type I (Section height﹤20mm) |
MPa |
≥90 |
≥100 |
|
Type I (Section height≥20mm) |
MPa |
≥80 |
≥90 |
||
|
Non-type I |
MPa |
≥25 |
≥30 |
||
|
12 |
Water resistance |
Type I (Section height﹤20mm) |
MPa |
≥85 |
≥95 |
|
Type I (Section height≥20mm) |
MPa |
≥75 |
≥85 |
||
|
Non-type I |
MPa |
≥22 |
≥25 |
||
|
13 |
Aging resistance |
Type I (Section height﹤20mm) |
MPa |
≥60 |
≥65 |
|
Type I (Section height≥20mm) |
MPa |
≥55 |
≥60 |
||
|
Non-type I |
MPa |
≥20 |
≥25 |
||
|
14 |
Typical thermal |
Heat flow meter method |
W/(m • K) |
0.3 |
0.3 |
|
15 |
Linear expansion coeffecience typical value |
-1 K |
2.3×10-5～3.5×10-5 |
2.3×10-5～3.5×10-5 |
|
|
16 |
When selecting non-Type I polyamide profiles, engineering design verification should be carried out. |
||||
- Sample water content lesser than 0.2% by weight.
- Norm laboratory condition:(23±2)ºC and (50±10)% relative humidity.