选用钠基蒙脱土(MMT)和有机改性蒙脱土(OMMT)分别与聚乳酸/聚丁二酸丁二醇酯共混、挤出并发泡制成复合材料.通过X射线衍射(XRD)、断口扫描电镜(SEM)和力学性能测试探索了不同纳米改性剂对复合发泡材料发泡效果及力学性能的影响.结果表明,MMT和OMMT的加入均能显著改善复合材料的发泡效果,OMMT的效果要好于MMT.当OMMT的质量分数为3％时,试样的综合性能最佳,压缩、弯曲和冲击强度分别达到了9.2MPa、14.0MPa和31.2kJ/m2,平均泡孔尺寸则由未改性体系的475.6μm减小到261.4μm,获得了综合力学性能优良,泡孔细密、均匀,表面质量优的复合发泡材料.
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