项目 | 测试方法 | 柔软(150℃)指标 |
比重 | ASTM D792 | ≤1.8g/cm3 |
拉伸强度 | ASTM D2671 | ≥24.5MPa |
断裂伸长率 | ASTM D2671 | ≥150% |
老化后断裂伸长率 | 225℃/168h | ≥100% |
热冲击 | 275℃/4h | 不滴流、无裂纹 |
冷冲击 | -55℃/4h | 不开裂 |
介电强度 | ASTM D2671 | ≥15.7kV/mm |
体积电阻率 | ASTM D257 | ≥1.0×1013Ω.cm |
燃烧性能 | UL224 | 通过VW-1 |
KT(收缩倍率2:1)
尺寸 Size | 内径 Inside Diameter | 完全收缩后壁厚 Recovered Wall Thickness After Heating | |
收缩前最小内径 Minimum Expanded as Supplied | 收缩后最大内径 Maximum Recovered After Heating | ||
3/64 | 1.2 [0.046] | 0.6 [0.023] | 0.25 ± 0.05 [0.010 ± 0.002] |
1/16 | 1.6 [0.063] | 0.8 [0.031] | 0.25 ± 0.05 [0.010 ± 0.002] |
3/32 | 2.4 [0.093] | 1.2 [0.046] | 0.25 ± 0.05 [0.010 ± 0.002] |
1/8 | 3.2 [0.125] | 1.6 [0.062] | 0.25 ± 0.05 [0.010 ± 0.002] |
3/16 | 4.8 [0.187] | 2.4 [0.093] | 0.25 ± 0.05 [0.010 ± 0.002] |
1/4 | 6.4 [0.250] | 3.2 [0.125] | 0.33 ± 0.05 [0.013 ± 0.002] |
3/8 | 9.5 [0.375] | 4.8 [0.187] | 0.33 ± 0.05 [0.013 ± 0.002] |
1/2 | 12.7 [0.500] | 6.4 [0.250] | 0.33 ± 0.05 [0.013 ± 0.002] |
4/3 | 19.1 [0.750] | 9.5 [0.375] | 0.43 ± 0.08 [0.017 ± 0.003] |
1 | 25.4 [1.000] | 12.7 [0.500] | 0.48 ± 0.08 [0.019 ± 0.003] |
1 1/2 | 38.1 [1.500] | 19.1 [0.750] | 0.48 ± 0.08 [0.019 ± 0.003] |