| 物性表： | |||
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 1.07 g/cc | 0.0387 lb/in³ | ASTM D792 |
| Water Absorption | 1.2 % | 1.2 % | 23°C/24 hr; ASTM D570 |
| Linear Mold Shrinkage | 0.016 cm/cm | 0.016 in/in | |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Rockwell R | 110 | 110 | ASTM D786 |
| Tensile Strength, Yield | 52.0 MPa | 7540 psi | ASTM D638 |
| Elongation at Break | 80 % | 80 % | ASTM D638 |
| Flexural Yield Strength | 75.0 MPa | 10900 psi | ASTM D790 |
| Flexural Modulus | 1.80 GPa | 261 ksi | ASTM D790 |
| Izod Impact, Notched | 9.00 J/cm | 16.9 ft-lb/in | ASTM D256 |
| Izod Impact, Unnotched | NB @Thickness 3.20 mm |
NB @Thickness 0.126 in |
ASTM D256 |
| Thermal Properties | Metric | English | Comments |
| CTE, linear | 75.0 µm/m-°C @Temperature 20.0 °C |
41.7 µin/in-°F @Temperature 68.0 °F |
ASTM D696 |
| Thermal Conductivity | 0.250 W/m-K | 1.74 BTU-in/hr-ft²-°F | |
| Melting Point | 260 °C | 500 °F | ASTM D2133 |
| Deflection Temperature at 0.46 MPa (66 psi) | 215 °C | 419 °F | ASTM D648 |
| Deflection Temperature at 1.8 MPa (264 psi) | 70.0 °C | 158 °F | ASTM D648 |
| Flammability, UL94 | HB | HB | |
| Processing Properties | Metric | English | Comments |
| Processing Temperature | 270 - 290 °C | 518 - 554 °F | |
| Mold Temperature | 40.0 - 60.0 °C | 104 - 140 °F | |
特性
1、具有优良的耐磨性、自润滑性，机械强度较高。但吸水性较大，因而尺寸稳定性较差
2、PA66在较高温度也能保持较强的强度和刚度。PA66在成型后仍然具有吸湿性，其程度主要取决于材料的组成、壁厚以及环境条件。
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