橡胶增韧阻燃（FR）聚酰胺11纳米复合材料第1部分 SEBS-g-MA弹性体和纳米黏土的作用

Hao Wu, Rogelio Ortiz, Joseph H. Koo
德克萨斯大学奥斯汀分校机械工程系

摘要

本研究的目的是开发一种用于SLS的多功能聚酰胺11（PA11），该聚酰胺11具有平衡的热、机械和易燃性
能。在本研究中，通过双螺杆挤出制备了两组配方：第一组考察了马来酸酐改性弹性体对可燃性和力学性能的影响，
而第二组添加了不同数量的纳米粘土，并讨论了热稳定性、可燃性和机械性能。添加20 wt.%弹性体使断裂伸长率达
到40%。放热能力降低高达49%，所有纳米复合材料样品均通过UL 94 V-1评级。纳米黏土的添加将拉伸模量提高了
78%，所有配方的断裂伸长率都受到阻燃剂和纳米黏土添加的负面影响。

关键词

聚酰胺11（PA11）；选择性激光烧结（SLS）；聚合物纳米复合材料；阻燃剂；增韧

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