类别：聚合物；热塑性塑料；丙烯酸（有机玻璃）；丙烯酸。
材料说明：670N是耐溶剂分级，几乎不受绘画，印刷，和抗静电处理。一般delpet®素质包括有吸引力的透明度，优雅的光泽和色彩亮度，优良的耐候性，表面硬度高，优异的耐化学性，优良的电性能和绝缘性能，和优异的加工性能。
物性表：| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.19 g/cc | 0.0430 lb/in³ | ASTM D792 |
| Water Absorption | 0.30 % | 0.30 % | details not reported; ASTM D792 |
| Linear Mold Shrinkage | 0.0020 - 0.0060 cm/cm | 0.0020 - 0.0060 in/in | ASTM D955 |
| Melt Flow | 4.0 g/10 min | 4.0 g/10 min | Condition L; ASTM D1238 |
| 8.0 g/10 min | 8.0 g/10 min | Condition I; ASTM D1238 | |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Rockwell M | 92 | 92 | ASTM D785 |
| Tensile Strength, Ultimate | 71.0 MPa | 10300 psi | ASTM D638 |
| Elongation at Break | 5.0 % | 5.0 % | ASTM D638 |
| Flexural Yield Strength | 110 MPa | 16000 psi | ASTM D790 |
| Flexural Modulus | 3.30 GPa | 479 ksi | ASTM D790 |
| Electrical Properties | Metric | English | Comments |
| Electrical Resistivity | >= 1.00e+15 ohm-cm | >= 1.00e+15 ohm-cm | ASTM D257 |
| Surface Resistance | >= 1.00e+16 ohm | >= 1.00e+16 ohm | ASTM D257 |
Dielectric Constant  |
3.0 @Frequency 40.0 - 50.0 Hz |
3.0 @Frequency 40.0 - 50.0 Hz |
ASTM D150 |
| 4.0 @Frequency 60 Hz |
4.0 @Frequency 60 Hz |
ASTM D150 | |
| Dielectric Strength | 20.0 kV/mm | 508 kV/in | Short-term; 4 kV/s; ASTM D149 |
| Dissipation Factor |
0.020 @Frequency 40.0 Hz |
0.020 @Frequency 40.0 Hz |
ASTM D150 |
| 0.040 @Frequency 50 Hz |
0.040 @Frequency 50 Hz |
ASTM D150 | |
| 0.060 @Frequency 60 Hz |
0.060 @Frequency 60 Hz |
ASTM D150 | |
| Thermal Properties | Metric | English | Comments |
| CTE, linear | 60.0 µm/m-°C @Temperature 20.0 °C |
33.3 µin/in-°F @Temperature 68.0 °F |
ASTM D257 |
| Specific Heat Capacity | 1.46 J/g-°C | 0.349 BTU/lb-°F | |
| Thermal Conductivity | 0.210 W/m-K | 1.46 BTU-in/hr-ft²-°F | ASTM C177 |
| Maximum Service Temperature, Air | 84.0 °C | 183 °F | Heat Distortion Temp |
| 84.0 °C | 183 °F | Deflection Temp; Load not reported; ASTM D648 | |
| Optical Properties | Metric | English | Comments |
| Refractive Index | 1.49 | 1.49 | |
| Transmission, Visible | 93 % | 93 % | ASTM D1003 |
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