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原料比对
产品信息
品名
品牌名
典型应用
特性
认证
POM 988P 美国杜邦
Delrin®
电动工具,汽车部件
耐高温,耐磨
UL
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物性数据
| 热性能 | 测试条件 | 测试方法 | 美国杜邦/988P |
|---|---|---|---|
| 导热系数 | 0.37 w/mk | ||
| 热变形温度 | 1.8MPa | ASTM D-648 | 136 |
| 熔融温度 | ASTM D-2133 | 175 | |
| 线性热膨胀系数 | 60-104℃ | ASTM D-696 | 13.7 10-5m/m |
| -40-29 | ASTM D-696 | 10.4 10-5m/m | |
| 29-60℃ | ASTM D-696 | 12.2 10-5m/m | |
| 104-160℃ | ASTM D-696 | 14.9 10-5m/m | |
| 自燃性 | UL 94 | HB |
| 机械性能 | 测试条件 | 测试方法 | 美国杜邦/988P |
|---|---|---|---|
| 断裂伸长率 | -55℃ | ASTM D-638 | 10 % |
| 23℃ | ASTM D-638 | 25 % | |
| 100℃ | ASTM D-638 | >260 % | |
| 122℃ | ASTM D-638 | >260 % | |
| 70℃ | ASTM D-638 | 180 % | |
| 抗剪强度 | 23℃ | ASTM D-732 | 66 Mpa |
| 拉伸强度 | 122℃ | ASTM D-638 | 26 Mpa |
| 100℃ | ASTM D-638 | 36 Mpa | |
| 70℃ | ASTM D-638 | 48 Mpa | |
| 23℃ | ASTM D-638 | 69 Mpa | |
| -55℃ | ASTM D-638 | 101 Mpa | |
| 洛氏硬度 | ASTM D-785 | 120 | |
| 挠曲疲劳忍耐限度 | 50%RH，23℃，106周期 | ASTM D-671 | 32 Mpa |
| 热变形温度 | 140kg/cm2,50℃ | ASTM D-621 | 0.5 % |
| 弯曲变形 | 23℃ | ASTM D-790 | 97 Mpa |
| 弯曲模量 | -55℃ | ASTM D-790 | 4730 Mpa |
| 70℃ | ASTM D-790 | 1720 Mpa | |
| 100℃ | ASTM D-790 | 1030 Mpa | |
| 122℃ | ASTM D-790 | 755 Mpa | |
| 23℃ | ASTM D-790 | 3220 Mpa | |
| 23℃ | ASTM D-638 | 3640 Mpa | |
| 悬壁梁缺口冲击强度 | 23℃ | ASTM D-1822 | 250 kJ/m² |
| 悬臂梁缺口冲击强度 | 缺口-40℃ | ASTM D-256 | 55 J/m |
| 23℃ | ASTM D-256 | 71 J/m | |
| 无缺口23℃ | ASTM D-256 | 1620 J/m | |
| 压缩应力 | 23℃，10%变形 | ASTM D-695 | 121 Mpa |
| 23℃，1%变形 | ASTM D-695 | 35 Mpa | |
| 硬度(Rockwell M) | ASTM D-785 | 94 |
| 电气性能 | 测试条件 | 测试方法 | 美国杜邦/988P |
|---|---|---|---|
| 介电常数 | 50%RH，23℃，106Hz | ASTM D-150 | 0.005 |
| 50%RH，23℃，102-106Hz | ASTM D-150 | 3.7 ohm-cm | |
| 介电强度 | 2.3mm | ASTM D-149 | 19.7 KV/mm |
| 耐电弧性 | 3.1mm | ASTM D-495 | 220 sec |
| 容积电阻率 | 23℃，0.2%含水量 | ASTM D-257 | ≥14.9 ohm-cm |
| 基本性能 | 测试条件 | 测试方法 | 美国杜邦/988P |
|---|---|---|---|
| 吸水率 | 24小时浸渍 | ASTM D-570 | 0.25 % |
| 浸渍平衡点 | ASTM D-570 | 0.90 % | |
| 50%相对湿度 | ASTM D-570 | 0.22 % |
| 物理性能 | 测试条件 | 测试方法 | 美国杜邦/988P |
|---|---|---|---|
| 收缩率 | 1.8-2.0 % |