Tenso-resistive effect of antimony-doped tin oxide coated polycaprolactam fiber
Electrically conductive fibers (ECF) are prospective stretch sensor for detecting of dangerous deformation. ECF reinforced concrete has the self-diagnose ability on damage and this smart concrete can detect dangerous deformations real time. Among all the ECF, carbon fibers reinforced concrete has attracted more attention. However, high modulus of carbon fiber makes it difficult to assess the deformation in inelastic regime. In this paper, a novel dissolving-coating method for preparing ECF is designed and polycaprolactam (PA6) fibers coated with antimony-doped Tin oxide (ATO) was prepared. The ATO coated PA6 fibers have lower volume resistance, lower modulus and plasticity, which make fibers sense both elastic and inelastic deformation. The electromechanical behavior of ATO coated PA6 fibers were investigated and the tenso-resistive model is derived that correlates the resistance change with applied strain. The experimental data for tensile strain is in good agreement with theoretical equations derived from model and the model provides a theoretical basis for the analysis and design of smart concrete filled with ATO coated PA6 fibers.
JIN Xin XIAO Changfa WANG Wenyu
Tianjin Municipal Key Laboratory of Fiber Modification and Functional Fiber (FMFF), School of Mat Tianjin Bestchance Medical Device Co.Ltd., Tianjin 300384, China
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
673-676
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）