中文摘要：

以聚丁二酸丁二醇酯（PBS）为基材，经十六烷基三甲基溴化铵（cTAB）改性过的纳米蒙脱土为填料，采用熔融共混法，制备了PBS／MMT纳米复合材料，并研究了该复合材料的热稳定性能、力学性能和流变性能等。结果表明：当改性nano．MMT的添加质量分数为5％时，复合材料的熔点约提高了2．55℃，热初始分解温度提高了33℃；当其添加质量分数为3％时，复合材料的拉伸强度提高了9％，断裂伸长率提高了3％．冲击强度提高了23％：复合材料的流变性能比纯PBS的流变性能有一定程度的提高。

英文摘要：

PBS was blended in a twin-screw extruder with nanoscale MMT modified with CTAB to provide PBS/ MMT nanocomposite. The heat resistance, mechanical properties and rheological properties ofPBS/MMT nanocomposite were studied. The results showed that when PBS was blended with nanoscale MMT modified by 5wt%, the melting point ofPBS/MMT nanocomposite increased by about 2.55 ℃, the initial heat decomposition temperature increased by about 33℃. When PBS was blended with nanoscale MMT modified by 3wt%, the tensile strength of PBS/MMT nanocomposite increased by 9%, break elongating by 3%, impact strength increased by about 23%. Meanwhile, the theological properties of PBS/MMT nanocomposite increased to certain degree compared with pure PBS.