杜邦海翠料Hytrel 7246粘結性耐低溫撞擊性能好
TPEE 美國杜邦 7246
DuPont Performance Polymers Hytrel 7246 Polyester Elastomer TPC-ET
Hytrel 7246
TPC-ET 72D抗氧化性,熱穩定性.低溫下的柔性.高能量吸收.降噪.抗蠕變性.良好的粘結性.耐低溫撞擊.熱穩定性.食品接觸的合規性.硬度中等。
加工方法:吹塑薄膜,多次注射成型.擠出.擠出吹塑成型.擠壓層涂法.澆鑄,泡沫處理.片材擠出成型.細絲擠出.型材擠出.注吹成型,鑄造薄膜。
TPC-ET
物理性能：
| Density | 1.11 g/cc | 0.0401 lb/in3 | |
| 1.26 g/cc | 0.0455 lb/in3 | ISO 1183 | |
| Water Absorption |
0.60 % @Thickness 2.00 mm |
0.60 % @Thickness 0.0787 in |
Sim. to ISO 62 |
| Moisture Absorption |
0.200 % @Thickness 2.00 mm |
0.200 % @Thickness 0.0787 in |
Sim. to ISO 62 |
| Water Absorption at Saturation | 0.30 % | 0.30 % | Immersion 24h; ASTM D570 |
電氣性能：
| Volume Resistivity | 2.00e+12 ohm-cm | 2.00e+12 ohm-cm | IEC 60093 |
| Surface Resistance | >= 1.00e+15 ohm | >= 1.00e+15 ohm | IEC 60093 |
Dielectric Constant 
|
3.5 @Frequency 1.00e+6 Hz |
3.5 @Frequency 1.00e+6 Hz |
IEC 60250 |
|
4.0 @Frequency 100 Hz |
4.0 @Frequency 100 Hz |
IEC 60250 | |
| Dielectric Strength | 20.0 kV/mm | 508 kV/in | IEC 60243-1 |
|
Dissipation Factor
|
0.016 @Frequency 100 Hz |
0.016 @Frequency 100 Hz |
IEC 60250 |
|
0.030 @Frequency 1.00e+6 Hz |
0.030 @Frequency 1.00e+6 Hz |
IEC 60250 | |
| Comparative Tracking Index | 600 V | 600 V | IEC 60112 |