Effect of Dip Coating Process on the Performance of Graphene/Spandex Yarn Strain Sensor  

作　　者：DONG Xiaolong WANG Tingting HU Jiyong DONG Hongqiang LU Yun YANG Xudong 董小龙;王婷婷;胡吉永;董宏强;卢赟;杨旭东(College of Textiles,Donghua University)

机构地区：[1]College of Textiles,Donghua University

出　　处：《Journal of Donghua University(English Edition)》2019年第5期451-457,共7页东华大学学报（英文版）

基　　金：Biomedical Textile Material Science and Technology,China(111 Project)(No.B07024)

摘　　要：This study presented the effect of the concentration of graphene in the dispersion,the type of polyvinyl alcohol(PVA)and the surfactant on the sensing properties of dip-coated graphene/spandex yarns as resistance strain sensors.Experimental results showed that the addition of styrene-acrylic emulsion surfactant facilitates the dispersion of graphene and then improves the conductivity and sensing performance,and the sensitivity is up to 91.The conductivity and sensing properties of graphene/spandex yarns at 2%graphene dispersion are better than those at 1%graphene dispersion.When the conductive yarn treated by 2%graphene dispersion is stretched to 50%,the sensitivity is up to 29,the repeatability is good,and the hysteresis is low.In terms of the binding agent,PVA as a high alcoholysis and large polymerization decreases the sensitivity,repeatability as well as the hysteresis.This study presented the effect of the concentration of graphene in the dispersion,the type of polyvinyl alcohol( PVA) and the surfactant on the sensing properties of dip-coated graphene/spandex yarns as resistance strain sensors. Experimental results showed that the addition of styrene-acrylic emulsion surfactant facilitates the dispersion of graphene and then improves the conductivity and sensing performance,and the sensitivity is up to 91. The conductivity and sensing properties of graphene/spandex yarns at 2% graphene dispersion are better than those at 1% graphene dispersion. When the conductive yarn treated by 2% graphene dispersion is stretched to 50%, the sensitivity is up to 29, the repeatability is good,and the hysteresis is low. In terms of the binding agent,PVA as a high alcoholysis and large polymerization decreases the sensitivity,repeatability as well as the hysteresis.

关 键 词：GRAPHENE DIP coating electrical CONDUCTIVITY sensing PERFORMANCE 

分 类 号：TS101.8[轻工技术与工程—纺织工程]