Design and development of 4D-printed cellulose nanofibers reinforced shape memory polymer composites: Application for self-deforming plant bionic soft grippers

IF 10.3 1区工程技术 Q1 ENGINEERING, MANUFACTURING

Additive manufacturing Pub Date : 2023-05-25 DOI:10.1016/j.addma.2023.103544

Tongfei Gu, Hongjie Bi, Hao Sun, JianFu Tang, Zechun Ren, Xinyuan Zhou, Min Xu

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引用次数: 6

Abstract

Shape memory polymers (SMPs) have facilitated the development of smart materials. The SMPs can be used in 3D printing technology to achieve intelligent deformation over time, i.e., 4D printing. This study used a simple preparation method to develop polycaprolactone (PCL)/poly butyleneadipate-co-terephthalate (PBAT) thermally responsive shape memory polymer composites reinforced by cellulose nanofibers (CNFs). Adding CNFs at 1 part per hundred (1 phr) of polymer mass enhanced the mechanical performance and composites' interfacial bonding. In addition, the polymer composites demonstrated good 3D printability. 4D printed thermal response self-deforming structures were designed using the shape memory effect, climbing plant bionic model, and 3D printing technology. This study demonstrated the fast response and stable winding of 4D printed self-deforming structures for soft grippers. The advanced 4D printed soft grippers with thermally induced deformation and bionic approach are anticipated to assist the development of biomedical devices, soft robotics, smart actuators, and other areas.

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4d打印纤维素纳米纤维增强形状记忆聚合物复合材料的设计与开发:在自变形植物仿生软爪中的应用

形状记忆聚合物（SMPs）促进了智能材料的发展。SMPs可用于3D打印技术，以随着时间的推移实现智能变形，即4D打印。本研究采用一种简单的制备方法制备了纤维素纳米纤维增强的聚己内酯（PCL）/聚己二酸丁酯-共对苯二甲酸酯（PBAT）热响应形状记忆聚合物复合材料。以每一百份（1phr）聚合物质量添加1份CNFs可以增强复合材料的力学性能和界面结合。此外，聚合物复合材料显示出良好的3D打印性能。利用形状记忆效应、攀爬植物仿生模型和3D打印技术，设计了4D打印的热响应自变形结构。该研究证明了用于软夹具的4D打印自变形结构的快速响应和稳定卷绕。具有热致变形和仿生方法的先进4D打印软夹具有望帮助生物医学设备、软机器人、智能致动器和其他领域的发展。

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来源期刊

Additive manufacturing Materials Science-General Materials Science

CiteScore

19.80

自引率

12.70%

发文量

648

审稿时长

35 days

期刊介绍： Additive Manufacturing stands as a peer-reviewed journal dedicated to delivering high-quality research papers and reviews in the field of additive manufacturing, serving both academia and industry leaders. The journal's objective is to recognize the innovative essence of additive manufacturing and its diverse applications, providing a comprehensive overview of current developments and future prospects. The transformative potential of additive manufacturing technologies in product design and manufacturing is poised to disrupt traditional approaches. In response to this paradigm shift, a distinctive and comprehensive publication outlet was essential. Additive Manufacturing fulfills this need, offering a platform for engineers, materials scientists, and practitioners across academia and various industries to document and share innovations in these evolving technologies.