Electrically conductive carbon black/electrospun polyamide 6/poly(vinyl alcohol) composite based strain sensor with ultrahigh sensitivity and favorable repeatability
Electrically conductive carbon black/electrospun polyamide 6/poly(vinyl alcohol) composite based strain sensor with ultrahigh sensitivity and favorable repeatability
复制标题
导电炭黑/电纺聚酰胺6/聚乙烯醇复合材料应变传感器，具有超高灵敏度和良好的重复性
DOI：
10.1016/j.matlet.2018.10.068
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发表时间：
2019
影响因子：
3
通讯作者：
Shen Changyu
中科院分区：
文献类型：
--
作者：
Zhan Pengfei;Zhai Wei;Wang Ning;Wei Xiangdong;Zheng Guoqiang;Dai Kun;Liu Chuntai;Shen Changyu
将导电炭黑(CB)/电纺尼龙6(PA6)纤维毡嵌入聚乙烯醇(PVA)中，制备了炭黑(CB)/尼龙6(PA6)/聚乙烯醇(PVA)导电聚合物复合材料。其中，以电纺PA6纤维网络为骨架，通过在PA6纤维表面修饰CB颗粒来预构导电通道；以PVA为基质保护预制的导电网络。对于应变传感性能，达到了很高的量规系数(GF，9706.9)，表现出很大的灵敏度。循环拉伸测试表明，导电纤维复合材料对不同的拉伸应变表现出不同的敏感行为。该应变传感器在长期拉伸-释放循环中还具有出色的重复性和耐用性。这项工作为研制高灵敏度和高稳定性相结合的应变传感器提供了一种简便而新颖的策略。
Carbon black (CB)/polyamide 6 (PA6)/poly (vinyl alcohol) (PVA) electrically conductive polymer composites were fabricated by embedding conductive CB/electrospun PA6 fibrous mat into PVA matrix. Here, the electrospun PA6 fibrous network was applied as the skeleton to pre-construct conductive channels by decorating CB particles on the surfaces of PA6 fibers; the PVA was used as matrix to protect the pre-produced conductive network. For the strain sensing performances, a very high gauge factor (GF, 9706.9) has been achieved, showing a large sensitivity. Cyclic tension tests display that the conductive fibrous composite shows distinguishing sensing behaviors towards varying tensile strain. The strain sensor also has excellent repeatability and durability during long-term stretching-releasing cycles. This work provides a facile and novel strategy to develop strain sensors combined with high sensitivity and excellent stability for human health detections.