Electrical properties of carbon-containing epoxy compositions under shape memory effect realization
Electrical properties of carbon-containing epoxy compositions under shape memory effect realization
复制标题
DOI：
10.1016/j.compositesa.2004.06.028
复制
发表时间：
2005
影响因子：
8.7
通讯作者：
V. Beloshenko;V. Varyukhin;Yu. V. Voznyak
中科院分区：
文献类型：
--
作者：
V. Beloshenko;V. Varyukhin;Yu. V. Voznyak
在形状恢复温度范围内研究了环氧聚合物-热膨胀石墨（EP-TEG）和EP-TEG-高岭土组合物的压缩变形样品的电阻R的行为。结果表明，形状恢复的过程是伴随着一个跳跃式增加的R有关的样品长度的变化。高岭土的加入降低了变形的聚合物组合物的电阻率的绝对值，并增加了R跳跃的值。揭示的变化R解释的吸引力的差示扫描量热法（DSC）测量的数据，复合材料的微观结构和渗流模型表示的调查结果。
The behavior of electrical resistance R of compression-deformed samples of the epoxy polymer-thermoexpanded graphite (EP-TEG) and EP-TEG-kaolin compositions has been investigated in the shape recovery temperature range. It is shown that the process of shape recovery is accompanied by a jump-like increase of R related to the sample length change. The addition of kaolin decreases the absolute value of electrical resistivity of the deformed polymer compositions and increases the value of R jump. The revealed changes in R are explained with the attraction of data on differential scanning calorimetry (DSC) measurements, results of investigations of composite microstructure and percolation model representations.