This study explores the realization of the shape memory effect (SME) in composite materials composed of polylactide (PLA) filled with diopside particles exhibiting varied supramolecular structures, such as spherulites and amorphous lamellar structures. We investigated the influence of diopside filler on the thermomechanical properties and shape recovery behavior of PLA-based composites. Different supramolecular structures of PLA were achieved through controlled crystallization processes. Comprehensive characterization techniques, including differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and dynamic mechanical analysis (DMA), were employed to elucidate the structure-property relationships. The results indicate that the diopside enhances the SME of PLA composites, with the degree of improvement being dependent on the specific supramolecular structure of the polymer matrix. Our findings provide insights into the design of advanced SMPs with tailored properties for potential applications in medicine.

中文翻译：

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在不同超分子结构的复合材料 PLA/透辉石中实现形状记忆效应


本研究探讨了形状记忆效应 （SME） 在由聚丙交酯 （PLA） 组成的复合材料中实现，该复合材料填充了表现出不同超分子结构的透辉石颗粒，例如球晶和非晶片状结构。我们研究了透辉石填料对 PLA 基复合材料的热机械性能和形状恢复行为的影响。PLA 的不同超分子结构是通过受控的结晶过程实现的。采用全面的表征技术，包括差示扫描量热法 （DSC）、扫描电子显微镜 （SEM） 和动态力学分析 （DMA），来阐明结构-性能关系。结果表明，透辉石增强了 PLA 复合材料的 SME，改善程度取决于聚合物基质的特定超分子结构。我们的研究结果为设计具有定制特性的先进 SMP 提供了见解，以用于医学的潜在应用。