Material: | POM |
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Kind: | Hard Plastic Sheet |
Water Absorption: | 0.24% |
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No. | Item | Unit | Result | Test Method |
1 | Density | g/cm³ | 1.413 | GB/T 1033.1 -2008 |
2 | Tensile strength | MPa | 66.6 | GB/T 1040 .2/1B-2006 |
3 | Elongation at break | % | 24 | |
4 | Bending strength | MPa | 102 | GB/T 9341 -2008 |
5 | Modulus of elasticity in static bending | MPa | 2820 | |
6 | Charpy Notched Impact Strength | kJ/m² | 7.8 | GB/T 1043 . 1/1eA -2008 |
7 | Impact intensity of falling ball | / | No cracking | GB/T 13520 - 1992 |
8 | Vicat heat resistance (1kg ,50C/h) | ºC | 163 | GB/T 1633 -2000 |
9 | Variation Rate Of Heating Sizes(longitudinal) | % | 0.08 | GB/T 22789.1 -2008 |
10 | Variation Rate Of Heating Sizes(transverse) | % | 0.04 | |
11 | Rockwell hardness | / | 118 | GB/T 3398.2 -2008 |
12 | Surface resistance coefficient | Ω | 8.5×1012 | GB/T 1410 -2006 |
13 | Volume resistance coefficient | Ω · m | 1.3×1012 | |
14 | Dielectric constant (1MHz) | / | 3.7 | GB/T 1409 -2006 |
15 | Dielectric loss | / | 0.055 | |
16 | Dielectric strength | kV/mm | 6.93 | GB/T 1408.1 -2016 |
17 | Friction coefficient | / | 0.18 | GB/T 3960 -2016 |