传感技术学报2016，Vol.29Issue(5)：654-658,5.DOI:10.3969/j.issn.1004-1699.2016.05.005
炭黑/硅橡胶导电复合材料力敏元件温度响应试验研究
Temperature Response Test of Carbon Black/Conductive Silicon Rubber Composite Force-Sensitive Sensor
摘要
Abstract
The large deformation force-sensitive sensing element was developed by carbon black/silicone rubber con-ductive composites. The temperature sensitivity of the composite was studied by temperature test,and the tempera-ture sensitive characteristics were analyzed according to its electric conduction mechanism. It was found that the car-bon black/silicone rubber conductive composite material exhibits a positive temperature coefficient characteristic and the resistance was increased with the increase of temperature. The resistance relaxation phenomenon was found when the temperature was stable. The change of the volume of silicone rubber matrix with temperature is the main reason causing the temperature sensitivity. At the same time,the temperature change will also affect the ability of electronic transitions,thereby affecting the temperature response of the composites. The viscoelastic of rubber matrix and the size effect of the sample which has a certain thickness are the main reason for the temperature response lag.关键词
力敏元件/导电复合材料/温度敏感性/温度响应Key words
force-sensitive element/conductive composites/temperature sensitive/temperature response分类
建筑与水利引用本文复制引用
廖波,周国庆,常传源,吴娟..炭黑/硅橡胶导电复合材料力敏元件温度响应试验研究[J].传感技术学报,2016,29(5):654-658,5.基金项目
国家自然科学基金项目(51404210) （51404210）
博士后科学基金项目(2014M551698) （2014M551698）
深部岩土力学与国家重点实验室开放基金项目(SKLGDUEK1412) （SKLGDUEK1412）
浙江省自然科学基金项目(LQ12G03011) （LQ12G03011）
