论文部分内容阅读
通过研究两种分散在硅油中聚省醌自由基高聚物(PAQR)智能复合物的转矩(或切变速率)随某些因素,如切变速率、温度以及外界电场强度等的变化,我们观察到在电流-电压以及应力-电压两组曲线间的变化趋势存在相关性,即它们均按幂函数变化。值得注意的是,在某些情况下幂指数约等于3,明显超过由一些通用模型(如极化模型)所预示的数值2;切变应力-温度关系曲线在120°C左右出现一个极大值。PAQR材料的介电系数与电导率显著影响电流变(Electrorhe-ological-ER)特性。文章对这些现象作了试探性解释。
By investigating the change of torque (or shear rate) of two kinds of smart compound of polyquinone free radical polymer (PAQR) dispersed in silicone oil with certain factors, such as shear rate, temperature and external electric field intensity, We observe that there is a correlation between the trend of current-voltage and stress-voltage curves, that is, they all change according to the power function. It is noteworthy that in some cases the power exponent is approximately 3, significantly exceeding the value 2 predicted by some common models (such as polarization models); shear stress-temperature curves appear to be extremely large at about 120 ° C value. The dielectric constant and conductivity of the PAQR material significantly affect the Electrorhe -ological-ER properties. The article tentatively explained these phenomena.