| Autor: |
Sun L; School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China. sunli2000sy@163.com., Wang TX; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. wa0003xi@e.ntu.edu.sg.; School of Materials Engineering, Jiangsu University of Technology, Changzhou 213001, China. wa0003xi@e.ntu.edu.sg., Chen HM; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, China. chenhongmei@sicnu.edu.cn., Salvekar AV; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. ABHIJITV001@e.ntu.edu.sg., Naveen BS; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. NAVEEN008@e.ntu.edu.sg., Xu Q; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. QXU003@e.ntu.edu.sg., Weng Y; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. WENG0022@e.ntu.edu.sg., Guo X; School of Materials Science and Engineering, Southeast University, Nanjing 211189, China. guo.xinli@seu.edu.cn., Chen Y; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. ChenYahui@ntu.edu.sg., Huang WM; School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore. mwmhuang@ntu.edu.sg. |
| Abstrakt: |
In this brief review, an introduction of the underlying mechanisms for the shape memory effect (SME) and various shape memory phenomena in polymers is presented first. After that, a summary of typical applications in sensors based on either heating or wetting activated shape recovery using largely commercial engineering polymers, which are programmed by means of in-plane pre-deformation (load applied in the length/width direction) or out-of-plane pre-deformation (load applied in the thickness direction), is presented. As demonstrated by a number of examples, many low-cost engineering polymers are well suited to, for instance, anti-counterfeit and over-heating/wetting monitoring applications via visual sensation and/or tactual sensation, and many existing technologies and products (e.g., holography, 3D printing, nano-imprinting, electro-spinning, lenticular lens, Fresnel lens, QR/bar code, Moiré pattern, FRID, structural coloring, etc.) can be integrated with the shape memory feature. |
