Ultrasensitive strain sensors of multiwalled carbon nanotube/epoxy nanocomposite using dielectric loss tangent
Ultrasensitive strain sensors of multiwalled carbon nanotube/epoxy nanocomposite using dielectric loss tangent
复制标题
使用介电损耗角正切的多壁碳纳米管/环氧树脂纳米复合材料超灵敏应变传感器
DOI：
10.1063/1.4833756
复制
发表时间：
2013-11-25
影响因子：
4
通讯作者：
Fukunaga, H.
中科院分区：
文献类型：
--
作者：
Alamusi;Yuan, W. F.;Fukunaga, H.
在这项工作中，实验表征了一系列由多壁碳纳米管（MWCNT）含量在1 wt. %-5 wt. %之间变化的环氧纳米复合材料制成的应变传感器的介电损耗正切（tan delta）。研究了频率、纳米复合材料应变、MWCNT含量和加载电压等4个参数对复合材料性能的影响。此外，还开发了一种替代电流测量因子K-AC。当MWCNT含量为1 wt. %，拉伸应变为0.6%时，纳米复合应变传感器的K-AC最大值为256，表明该应变传感器具有超灵敏度。(C) 2013 AIP出版有限责任公司
In this work, the dielectric loss tangent (tan delta) of a series of strain sensors, fabricated from an epoxy nanocomposite with multi-wall carbon nanotube (MWCNT) content varying at 1 wt. %-5 wt. %, was characterized experimentally. The effects of four parameters including frequency, strain of nanocomposite, MWCNT content, and loading voltage were investigated extensively. Moreover, an alternative current gauge factor K-AC was developed. The largest value of K-AC was found to be 256 for the nanocomposite strain sensor with 1 wt. % MWCNT content at 0.6% tensile strain, which indicates the ultra-sensitivity of the present strain sensor. (C) 2013 AIP Publishing LLC.