韓國工程POM Kepital ET-20A 產(chǎn)品特性：導(dǎo)電，表面電阻率只有1x102Ω，
抗疲勞，良好的耐化學(xué)性，良好的抗蠕變性，良好的流動性，良好的成型性能，良好的熱穩(wěn)定性，耐磨損性良好，良好的耐候性
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POM ET-20A 物性表：
| Specific Gravity |
1.41 |
g/cm³ |
ASTM D792 |
| Melt Mass-Flow Rate (MFR) |
11 |
g/10 min |
ASTM D1238 |
| Molding Shrinkage - Flow |
1.6 |
% |
ASTM D955 |
| Water Absorption (24 hr) |
0.22 |
% |
ASTM D570 |
| Mechanical |
Nominal Value |
Unit |
Test Method |
| Tensile Strength (Yield) |
45.1 |
MPa |
ASTM D638 |
| Tensile Elongation (Yield) |
7.0 |
% |
ASTM D638 |
| Flexural Modulus |
2450 |
MPa |
ASTM D790 |
| Flexural Strength (Yield) |
68.6 |
MPa |
ASTM D790 |
| Impact |
Nominal Value |
Unit |
Test Method |
| Notched Izod Impact (3.20 mm) |
54 |
J/m |
ASTM D256 |
| Tensile Impact Strength (1.60 mm) |
53.9 |
kJ/m² |
ASTM D1822 |
| Hardness |
Nominal Value |
Unit |
Test Method |
| Rockwell Hardness (M-Scale) |
75 |
|
ASTM D785 |
| Thermal |
Nominal Value |
Unit |
Test Method |
| Deflection Temperature Under Load (1.8 MPa, Unannealed) |
102 |
°C |
ASTM D648 |
| Melting Temperature |
165 |
°C |
|
| CLTE - Flow |
0.000013 |
cm/cm/°C |
ASTM D696 |
| Electrical |
Nominal Value |
Unit |
Test Method |
| Surface Resistivity |
1.0E+2 |
ohms |
ASTM D257 |
| Volume Resistivity |
1.0E+2 |
ohm·cm |
ASTM D257 |
