聚氨酯/有机膨润土纳米复合材料的制备及性能表征

PREPARATION AND PROPERTIES CHARACTERIZATION OF POLYURETHANE/ORGANIC BENTONITE NANOCOMPOSITES

采用溶液插层和单体插层两种方法制备聚氨酯(PUR)/有机膨润土纳米复合材料。结果表明,溶液插层法和单体插层法制备的PUR/有机膨润土纳米复合材料的拉伸强度比纯PUR分别提高了6.4%和41.7%,断裂伸长率分别提高了4.9%和95.7%。单体插层法制备的纳米复合材料的结构和性能优于溶液插层法。

Polyurethane/organic bentonite nanocomposites were prepared by monomer layer-intercalation and solution layer-intercalation methods.The results indicated that the tensile strength of nanocomposites prepared by solution layer-intercalation and monomer layer-intercalation method increased by 6.4% and 41.7% respestively,and the elongation at break increased by 4.9% and 95.7% respestively than those of pure polyurethane.The structure and properties of nanocomposites prepared by monomer intercalation method were better than those of nanocomposites prepared by solution intercalation method.