Kim Mijeong, Jang Seongeun, Choi Sungwoong, Yang Junghoon, Kim Jungpil, Choi Duyoung
Carbon & Light Material Application Research Group, Korea Institute of Industrial Technology, Jeonju 54853, Korea.
Division of Mechanical Design Engineering, Jeonbuk National University, Jeonju 54896, Korea.
Micromachines (Basel). 2021 Sep 15;12(9):1107. doi: 10.3390/mi12091107.
Shape memory polymers (SMPs) are attracting attention for their use in wearable displays and biomedical materials due to their good biocompatibility and excellent moldability. SMPs also have the advantage of being lightweight with excellent shape recovery due to their low density. However, they have not yet been applied to a wide range of engineering fields because of their inferior physical properties as compared to those of shape memory alloys (SMAs). In this study, we attempt to find optimized shape memory polymer composites. We also investigate the shape memory performance and physical properties according to the filler type and amount of hardener. The shape memory composite was manufactured by adding nanocarbon materials of graphite and non-carbon additives of Cu. The shape-recovery mechanism was compared, according to the type and content of the filler. The shape fixation and recovery properties were analyzed, and the physical properties of the shape recovery composite were obtained through mechanical strength, thermal conductivity and differential scanning calorimetry analysis.
形状记忆聚合物（SMPs）因其良好的生物相容性和出色的成型性，在可穿戴显示器和生物医学材料中的应用备受关注。SMPs还具有密度低、重量轻且形状恢复优异的优点。然而，与形状记忆合金（SMAs）相比，由于其物理性能较差，它们尚未应用于广泛的工程领域。在本研究中，我们试图找到优化的形状记忆聚合物复合材料。我们还根据填料类型和固化剂用量研究形状记忆性能和物理性能。通过添加石墨纳米碳材料和铜的非碳添加剂来制造形状记忆复合材料。根据填料的类型和含量比较形状恢复机制。分析形状固定和恢复特性，并通过机械强度、热导率和差示扫描量热法分析获得形状恢复复合材料的物理性能。
