橡胶增韧阻燃剂（FR）聚酰胺11纳米复合材料第2部分： 多壁碳纳米管（MWNT）与蒙脱土纳米粘土之间的 协同作用

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

在之前的研究中，制备并表征了设计用于选择性激光烧结（SLS）的阻燃（FR）聚酰胺11（PA11）
纳米复合材料配方。SEBS-g-MA弹性体的成功完全提高了材料的延展性。尽管非卤化FR添加剂和蒙脱土
（MMT）nanoclay 成功地降低了热释放容量（HRC）和峰值热释放速率（pHRR），但其特征是微尺度燃烧量热
仪（MCC）。橡胶增韧配方均未达到 UL94V0 认证，这是许多 FR 聚合物应用的基准。作为本研究的第二部分，我
们探索了纳米粘土和多壁碳纳米管（MWNT）这两种纳米颗粒之间的协同作用，以了解是否可以实现更好的
阻燃性能。TEM显微照片表明，纳米粘土和多壁碳纳米管都达到了高度分散。可燃性结果表明，所有配方均达
到UL94V0等级，与之前不含MWNT的配方相比，这是一个显著的改进。炭形态表征表明，固体碳质煤焦层被
Nanoclay和MWNT增强。

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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