Yu Gui-Feng, Yan Xu, Yu Miao, Jia Meng-Yang, Pan Wei, He Xiao-Xiao, Han Wen-Peng, Zhang Zhi-Ming, Yu Liang-Min, Long Yun-Ze
Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University, Qingdao 266071, P. R. China.
Key Laboratory of Marine Chemistry Theory & Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
Nanoscale. 2016 Feb 7;8(5):2944-50. doi: 10.1039/c5nr08618c.
A facile fabrication strategy via electrospinning and followed by in situ polymerization to fabricate a patterned, highly stretchable, and conductive polyaniline/poly(vinylidene fluoride) (PANI/PVDF) nanofibrous membrane is reported. Owing to the patterned structure, the nanofibrous PANI/PVDF strain sensor can detect a strain up to 110%, for comparison, which is 2.6 times higher than the common nonwoven PANI/PVDF mat and much larger than the previously reported values (usually less than 15%). Meanwhile, the conductivity of the patterned strain sensor shows a linear response to the applied strain in a wide range from 0% to about 85%. Additionally, the patterned PANI/PVDF strain sensor can completely recover to its original electrical and mechanical values within a strain range of more than 22%, and exhibits good durability over 10,000 folding-unfolding tests. Furthermore, the strain sensor also can be used to detect finger motion. The results demonstrate promising application of the patterned nanofibrous membrane in flexible electronic fields.
报道了一种通过静电纺丝然后原位聚合来制备图案化、高拉伸性和导电性的聚苯胺/聚偏二氟乙烯（PANI/PVDF）纳米纤维膜的简便制造策略。由于其图案化结构，纳米纤维PANI/PVDF应变传感器能够检测高达110%的应变，相比之下，这比普通的非织造PANI/PVDF垫高出2.6倍，且远大于先前报道的值（通常小于15%）。同时，图案化应变传感器的电导率在0%至约85%的宽范围内对应变呈线性响应。此外，图案化PANI/PVDF应变传感器在超过22%的应变范围内能够完全恢复到其原始电学和力学值，并且在10000次折叠-展开测试中表现出良好的耐久性。此外，该应变传感器还可用于检测手指运动。结果表明图案化纳米纤维膜在柔性电子领域具有广阔的应用前景。
