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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
| hardness | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Rockwell hardness | R-Scale | ASTM D785 | 116 |
| thermal performance | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Hot deformation temperature | 1.8MPa,Unannealed | ASTM D648 | 98.0 °C |
| Linear coefficient of thermal expansion | MD | ASTM D696 | 2.8E-05 cm/cm/°C |
| mechanical properties | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Bending modulus | ASTM D790 | 4700 MPa | |
| bending strength | ASTM D790 | 120 MPa | |
| elongation | Break | ASTM D638 | 6.5 % |
| tensile strength | ASTM D638 | 73.0 MPa |
| Electrical performance | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Dielectric strength | ASTM D149 | 21 kV/mm | |
| Volume resistivity | ASTM D257 | 1E+16 ohms·cm |
| Physical properties | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| density | ASTM D792 | 1.43 g/cm³ | |
| Shrinkage rate | MD：3.00mm | ASTM D955 | 0.25 % |
| Water absorption rate | 24hr,3.18mm | ASTM D570 | 0.13 % |
| impact performance | Test Condition | Test Method | UNITIKA JAPAN/U-polymer UM-8400-20 |
|---|---|---|---|
| Impact strength of cantilever beam gap | 3.18mm | ASTM D256 | 44 J/m |