Elastollan® 688A50N
热塑性聚氨酯弹性体（聚酯）
产品说明:
Elastollan® 688AN is specifically formulated for extruded profile, sheet and film applications. It exhibits excellent abrasion resistance, toughness, high transparency, low gel, and low yellowness index. It has excellent damping characteristics and outstanding resistance to tear propagation. Elastollan® 688AN conforms to the FDA food contact regulations as described in book 21, section 177.2600 and 177.1680 for both wet and dry food contact applications respectively. Elastollan® 688AN is supplied uncolored in diced or pelletized form.
机构评级 | FDA 21 CFR 177.1680、FDA 21 CFR 177.2600 |
外观 | |
加工方法 | 挤出、注射成型 |
密度 / 比重 | 1.21 |
| ASTM D792 |
熔流率（熔体流动速率） (190°C/21.6 kg) | 15 到 30 | g/10 min | ASTM D1238 |
肖氏硬度 (邵氏 A) | 87 |
| ASTM D2240 |
拉伸模量 (注塑) | 3400 | psi | ASTM D412 |
弯曲模量 (注塑) | 5700 | psi | ASTM D790 |
泰伯耐磨性 | 25.0 | mg | ASTM D1044 |
Abrasion - DIN | 25 | mm³ | DIN 53516 |
拉伸应力 |
|
| ASTM D412 |
100%应变 | 1300 | psi |
|
300%应变 | 3600 | psi |
|
抗张强度 | 5800 | psi | ASTM D412 |
伸长率 (断裂) | 520 | % | ASTM D412 |
撕裂强度 2 | 710 | lbf/in | ASTM D624 |
压缩永久变形 |
|
| ASTM D395B |
73°F, 22 hr | 25 | % |
|
158°F, 22 hr | 45 | % |
|
玻璃转化温度 | -16.6 | °F | 内部方法 |
维卡软化温度 | 176 | °F | ASTM D1525 |
Softening Point - DMA | 190 | °F | 内部方法 |
干燥温度 | 212 到 230 | °F |
|
干燥时间 | 2.0 到 3.0 | hr |
|
建议的最大水分含量 | 0.030 | % |
|
料筒后部温度 | 374 到 428 | °F |
|
料筒中部温度 | 374 到 428 | °F |
|
料筒前部温度 | 374 到 428 | °F |
|
射嘴温度 | 410 到 437 | °F |
|
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