长、短碳纳米管改性PCL柔性复合材料
花蕾12
1. 嘉兴市土木与环境高性能功能材料重点实验室，浙江嘉兴 314051； 2. 同济大学浙江学院土木工程系，浙江嘉兴 314051
Long，Short Carbon Nanotubes Modifying the Polycaprolactone Flexible Composites
Hua Lei12
1. Jiaxing Key Laboratory of High-Performance and Functional Materials in Civil and Environmental Engineering,Jiaxing 314051,China; 2. Department of Civil Engineering,Tongji Zhejiang College,Jiaxing 314051,China
摘要：利用熔融沉积制造 (FDM) 3D 打印技术构建聚己内酯 (PCL)基柔性电子结构单元应用于生物医学领域，是未来柔性器件发展的一个新方向。选用 PCL 作为柔性基体不仅可以满足 FDM 3D 打印工艺的需求，而且可以满足柔性电子材料在大形变可穿戴器件及生命健康监测领域应用的需求。采用长碳纳米管 (LCNTs)、短碳纳米管 (SCNTs)改性 PCL 基柔性复合材料，研究了 SCNTs，LCNTs 以及复配的 SCNTs/LCNTs 添加量对 PCL 基柔性复合材料力学 、电学性能的影响。结果表明，当 PCL 基体中掺入 CNTs (CNTs≤5wt.% )时，无论是 LCNTs ，SCNTs 还是复配 SCNTs/LCNTs的掺入 ，均可以明显地提升 PCL 基柔性复合材料力学及电学性能 ，且 LCNTs 的掺入量以及掺入比对 PCL 基柔性复合材料的力学以及电学性能的影响较为显著。当 3wt.%≤CNTs≤5wt.% ，此具有良好电学及力学性能的 PCL/CNTs 系列柔性复合材料适合制作大形变、高灵敏性柔性导电线材。
Abstract：Fused Deposition Modeling (FDM) 3D printing to construct Polycaprolactone (PCL) flexible circuit applied in the filed of biomedical science, is a new direction of the flexible electronic devices in the future. PCL as the flexible substrate could not only satisfy the need of FDM 3D technology, but also largely deformed wearable medical devices and health monitoring field. In order to find out the optimum content of the long carbon nanotube（LCNTs), short carbon nanotube（SCNTs) and SCNTs/LCNTs within the PCL based serial composites, LCNTs and SCNTs were incorporated into PCL matrix to investigate the mechanical and electrical of the PCL based serial composites. When the amount of CNTs was less than 5 wt.%, incorporation of LCNTs, SCNTs and LCNTs/SCNT into PCL matrix could enhance the mechanical, electrical of the PCL based serial composites. In addition, LCNTs played the key role of the mechanical and electrical of the PCL based serial composites. When the content of CNTs was less than 5wt.%, more than 3wt.%(3wt.%≤CNTs≤5wt.%), the PCL/CNTs series flexible composites with good electrical and mechanical prop‐ erties are suitable for making the large deformation and high sensitivity flexible conductive wires.
关键词：聚己内酯；长、短碳纳米管；力学性能；电学性能；高柔性复合材料
Keywords：polycaprolactone; long，short carbon nanotube; mechanical properties; electrical properties; flexible composites
基金：浙江省自然科学基金项目(LGF21E030001)，嘉兴市科技计划项目(2021AY10076)
本文引用格式：
花蕾.长、短碳纳米管改性PCL柔性复合材料[J].工程塑料应用，2023，51(4)：21?28.
Hua Lei. Long，short carbon nanotubes modifying the polycaprolactone flexible composites[J]. Engineering Plastics Application，2023，51(4)：21?28.
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