Acetal (POM) Homopolymer
Ensinger Inc.
20% PTFE 纤维
产品说明：
DELRIN® AF DE588 is a 20% PTFE filled homopolymer acetal that is fully tested and certified for use by the United States Navy. The resin is manufactured by DuPont and is used extensively in a variety of applications primarily on submarines. This advanced acetal material uses a combination of PTFE fibers uniformly dispersed in Delrin acetal resin. The combination results in improved wear characteristics along with strength, toughness, dimensional stability and machinability. The profile also yeilds a material with superior load bearing capabilities, especially when operating at high speeds.
DELRIN® DE588 is designed and approved specifically for naval applications and is suitable in a variety of uses such as bushings, bearings, seals, gaskets and valve seats.
物性信息：
| 填料/增强材料 | PTFE 纤维, 20% 填料按重量 |
| 特性 | 尺寸稳定性良好 均聚物 可切削 良好的强度 耐磨损性良好 韧性良好 |
| 用途 | 衬套 垫圈 阀门/阀门部件 军事应用 密封件 轴承 |
| 形式 | Shapes |
| 比重 | 1.53 | g/cm³ | ASTM D792 |
| 吸水率 (24 hr) | 0.30 | % | ASTM D570 |
| 洛氏硬度 (R 级) | 115 | ASTM D785 |
| 拉伸模量 | 2210 | MPa | ASTM D638 |
| 抗张强度 (屈服) | 42.1 | MPa | ASTM D638 |
| 拉伸应变 (屈服) | 20 | % | ISO 527-2 |
| 压缩强度 | ASTM D695 | ||
| 1% 应变 | 14.5 | MPa | ASTM D695 |
| 10% 应变 | 75.8 | MPa | ASTM D695 |
| 悬壁梁缺口冲击强度 | 59 | J/m | ASTM D256 |
| 拉伸冲击强度 | 10.5 | kJ/m² | ASTM D1822 |
| 载荷下热变形温度 | ASTM D648 | ||
| 0.45 MPa, 未退火 | 168 | °C | ASTM D648 |
| 1.8 MPa, 未退火 | 118 | °C | ASTM D648 |
| 熔融温度 | 175 | °C | ASTM D2133 |