In a catalyst free environment, thermo-responsive shape memory polyurethane was synthesized by one-pot process. A series of PU- nanocomposites were created using varing concentrations of FMWCNTs using solution mixing approach. The FTIR and RBS analysis were used to characterizethe designed PU and its nanocomposites. Smooth surfaces with uniform dispersion with few aggregations were confirmed by SEM micrographs. Excellent interfacial interaction between the polymer layer and functionalized filler was confirmed as the loading amount of filler increases with a change of surface morphologies and enhancement of other properties. The tensile strength and modulus of PU nanocomposite with 3% loading amount of filler were found to be 43.7 MPa and 32.6 MPa respectively, when compared to neat-PU. The chemical and physical interaction between the functional group of MWCNTs and the PUs matrix plays a pivoted role to enhance its tensile properties and thermal stabilities and conductivty. Almost 98–100% shape recovery was observed for all the samples with repeatability without any change in nanocomposite properties and strength. The recovery time of nanocomposites with 2% filler loading was reduced near;y three folds and the tensile modulus was increased more than threefold compared to pristine-PU, which favors the applications of these materials in aeronautics and auto-body parts.

在无催化剂环境中，通过一锅法合成了热响应形状记忆聚氨酯。使用溶液混合方法使用不同浓度的 FMWCNT 制造了一系列 PU-纳米复合材料。FTIR 和 RBS 分析用于表征设计的 PU 及其纳米复合材料。SEM 显微照片证实了具有均匀分散和很少聚集的光滑表面。随着填料的负载量随着表面形态的变化和其他性能的增强而增加，聚合物层和功能化填料之间的良好界面相互作用得到证实。与纯 PU 相比，填充量为 3% 的 PU 纳米复合材料的拉伸强度和模量分别为 43.7 MPa 和 32.6 MPa。MWCNTs 的官能团与 PU 基体之间的化学和物理相互作用在增强其拉伸性能、热稳定性和导电性方面起着关键作用。对于所有具有可重复性的样品，观察到几乎 98-100% 的形状恢复，而纳米复合材料的性能和强度没有任何变化。与纯PU相比，填充2%填料的纳米复合材料的恢复时间缩短了近三倍，拉伸模量增加了三倍以上，有利于这些材料在航空和汽车车身部件中的应用。对于所有具有可重复性的样品，观察到几乎 98-100% 的形状恢复，而纳米复合材料的性能和强度没有任何变化。与纯PU相比，填充2%填料的纳米复合材料的恢复时间缩短了近三倍，拉伸模量增加了三倍以上，有利于这些材料在航空和汽车车身部件中的应用。对于所有具有可重复性的样品，观察到几乎 98-100% 的形状恢复，而纳米复合材料的性能和强度没有任何变化。与纯PU相比，填充2%填料的纳米复合材料的恢复时间缩短了近三倍，拉伸模量增加了三倍以上，有利于这些材料在航空和汽车车身部件中的应用。