***塞拉尼斯25%GF高刚POM CELCON GC2***
Density | 1.58 | g/cm | *** 1183 |
Molding Shrinkage | *** 294-4 | ||
Across Flow | 1.2 | % | |
Flow | 0.40 | % | |
Water Absorption | *** 62 | ||
Saturation, 23°C | 0.80 | % | |
Equilibrium, 23°C, 50% RH | 0.20 | % |
Mechanical | Nominal Value | Unit | Test Method |
Tensile Modulus | 8600 | MPa | *** 527-2/1A |
Tensile Stress(Break) | 106 | MPa | *** 527-2/1A/5 |
Tensile Strain(Break) | 2.0 | % | *** 527-2/1A/5 |
Flexural Modulus(23°C) | 8700 | MPa | *** 178 |
Flexural Stress | *** 178 | ||
-- | 155 | MPa | |
23°C | 160 | MPa | |
Impact | Nominal Value | Unit | Test Method |
Charpy Notched Impact Strength(23°C) | 6.4 | kJ/m | *** 179/1eA |
Charpy Unnotched Impact Strength | *** 179/1eU | ||
-30°C | 35 | kJ/m | |
23°C | 25 | kJ/m | |
Notched Izod Impact Strength(23°C) | 6.0 | kJ/m | *** 180/1A |
Thermal | Nominal Value | Unit | Test Method |
Heat Deflection Temperature(1.8 MPa, Unannealed) | 160 | °C | *** 75-2/A |
Vicat Softening Temperature | 161 | °C | *** 306/B50 |
Melting Temperature | |||
-- | 166 | °C | |
--3 | 165 | °C | *** 11357-3 |
CLTE | *** 11359-2 | ||
Flow | 2.5E-5 | cm/cm/°C | |
Transverse | 1.2E-4 | cm/cm/°C |
POM的电绝缘性较好,几乎不受温度和湿度的影响;介电常数和介电损耗在很宽的温度、湿度和频率范围内变化很小;耐电弧性极好,并可在高温下保持。POM的介电强度与厚度有关,厚度0.127mm时为82.7kV/mm,厚度为1.88mm时为23.6kV/mm。
POM不耐强碱和氧化剂,对烯酸及弱酸有一定的稳定性。POM的耐溶剂性良好,可耐烃类、醇类、醛类、醚类、汽油、润滑油及弱碱等,并可在高温下保持相当的化学稳定性。吸水性小,尺寸稳定性好。
POM的耐候性不好,长期在紫外线作用下,力学性能下降,表面发生粉化和龟裂。
***塞拉尼斯25%GF高刚POM CELCON GC2***