Material Comparison
Product Info
Product Name
Brand Name
Usages
Properties
Certificates
PBT 4120 BK ZHANGZHOU CHANGCHUN
LONGLITE®
Automotive sector、Laptop case、Home appliance components、Electronic field、Electrical field
wear resistant、high strength、Flame retardant、Glass fiber reinforced
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Plastic Datasheets
| Mechanical properties | Test Condition | Test Method | ZHANGZHOU CHANGCHUN/4120 BK |
|---|---|---|---|
| tensile strength | ASTM D638 | 900-1200 kg/cm | |
| Impact strength of cantilever beam gap | 切口1/4″ | ASTM D256 | 4-7 kg-cm/cm |
| bending strength | ASTM D790 | 1400-1800 kg/cm | |
| Shore hardness | ASTM D785 | 93 M-scale | |
| elongation at break | ASTM D638 | 2.5-4.5 % | |
| Flexural modulus | ASTM D790 | ≥50000 kg/cm |
| Electrical performance | Test Condition | Test Method | ZHANGZHOU CHANGCHUN/4120 BK |
|---|---|---|---|
| dielectric constant | ASTM D150 | 4 60Hz | |
| Volume resistivity | ASTM D257 | ＞10 Ω-cm | |
| ASTM D257 | ＞10 Ω | ||
| dielectric strength | 2mm | ASTM D149 | ＞20 KV/mm |
| Induced positive connection | ASTM D150 | 0.001 60Hz | |
| arc resistance | ASTM D495 | 90 sec |
| physical property | Test Condition | Test Method | ZHANGZHOU CHANGCHUN/4120 BK |
|---|---|---|---|
| Shrinkage rate | 流动方向，- | ASTM D955 | 0.1-0.5 % |
| Water absorption rate | 24hr immersion | ASTM D570 | 0.03 % |
| Shrinkage rate | 垂直方向，- | ASTM D955 | 0.8-1.2 % |
| Glass Fiber Content | Ash | 20 % |
| Thermal performance | Test Condition | Test Method | ZHANGZHOU CHANGCHUN/4120 BK |
|---|---|---|---|
| Heat distortion temperature | 18.6kg/cm，HDT | ASTM D648 | 205（220） °C |
| melting temperature | DSC | 225 °C | |
| flame resistance | 0.8mm | UL 94 | V-0 |
| Linear coefficient of thermal expansion | ASTM D696 | 4 |
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