导电硅橡胶的复合传感特性研究

Multifunctional Sensor Properties of Conductive Silicone Rubber

为获得同时具有良好压阻和温度特性的导电橡胶,满足机器人复合传感研究的需要,制备了添加纳米粒子(SiO2、Al2O3)、导电粒子CB的复合导电橡胶,测量了它的压阻特性、温度特性、稳定性、敏感性。结果显示:合理选择添加导电粒子和纳米粒子比例,可以获得线性压阻特性和温度特性,稳定性和敏感性也得以提高。分析结果认为由于纳米粒子对导电硅橡胶基体的分散与补强共同作用,使复合导电硅橡胶的压阻特性、温度特性得以改善;由于其补强作用,复合导电橡胶的稳定性和敏感性提高。最后指出复合型导电硅橡胶在复合传感器上的潜在应用。

To obtain conductive rubber with favorable pressure-resistance and resistance-temperature properties, and to meet with the demands of robots complex sensors research, the conductive silicone rubber doped with different concentration of nano SiO2 and Al2O3 particles respectively, and conductive particles carbon black were compounded. The characteristics of pressure-resistance, resistance-temperature, stability, and sensitivity properties were measured. The results demonstrate that linear pressureresistance, linear resistance-temperature can be obtained when the nano particles and conductive ones doped in proper scale, and meanwhile the stability and sensitivity can be improved. The linear is tic are due to the dispersion and enhance effects of the nano particle in the rubber matrix, while the improved sensitivity and stability characteristics are due to the enhance effects of them. The potential applications of this complex conductive silicone rubber in complex sensor were indicated.