以纳米蒙脱土为增强剂与丁腈橡胶、吸水树脂(交联聚丙烯酸钠)等共混,制备了遇水膨胀橡胶.用扫描电镜观察了遇水膨胀橡胶的形貌,测试了力学和吸水膨胀性能.结果表明,添加纳米蒙脱土能显著提高遇水膨胀橡胶吸水前后的力学强度,改善橡胶中吸水树脂的分散性,降低其质量损失率.另外,研究了纳米蒙脱土含量对遇水膨胀橡胶吸水率的影响,对遇水膨胀橡胶在酸、碱、盐水和高温去离子水等不同介质溶液中的膨胀行为进行了探讨.
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