Material Comparison
Product Info
Product Name
Brand Name
Usages
Properties
Certificates
Polyarylate U-polymer UM-8400-20 UNITIKA JAPAN
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Plastic Datasheets
| Impact resistance | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Impact strength of cantilever beam gap | 3.18mm | ASTM D256 | 44 J/m |
| hardness | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Rockwell hardness | R级 | ASTM D785 | 116 |
| Mechanical properties | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| elongation | 断裂 | ASTM D638 | 6.5 % |
| tensile strength | ASTM D638 | 73.0 MPa | |
| Flexural modulus | ASTM D790 | 4700 MPa | |
| bending strength | ASTM D790 | 120 MPa |
| Electrical performance | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Volume resistivity | ASTM D257 | 1E+16 ohms·cm | |
| dielectric strength | ASTM D149 | 21 kV/mm |
| physical property | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Shrinkage rate | MD：3.00mm | ASTM D955 | 0.25 % |
| Water absorption rate | 24hr,3.18mm | ASTM D570 | 0.13 % |
| density | ASTM D792 | 1.43 g/cm³ |
| Thermal performance | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Heat distortion temperature | 1.8MPa,未退火，HDT | ASTM D648 | 98.0 °C |
| Linear coefficient of thermal expansion | MD | ASTM D696 | 2.8E-05 cm/cm/°C |
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