首页> 外文会议>China Cross-Strait Conference on Composite Materials; 20061022-26; Shanghai(CN) >Experimental investigation on the electrical and dynamic mechanical properties of PMN/electrically conductive carbon black/butyl composites
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Experimental investigation on the electrical and dynamic mechanical properties of PMN/electrically conductive carbon black/butyl composites

机译:PMN /导电炭黑/丁基复合材料电和动态力学性能的实验研究

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摘要

In this paper, a three-phase composite with electrically conductive carbon black (ECCB) and piezoelectric ceramic particles, PMN, embedded into butyl (PMN/ECCB/IIR) was prepared by simple blend and mold-press process. Dynamic mechanical properties with various ECCB loading were tested by dynamic mechanical analysis (DMA). DMA shows that the ECCB loading has remarkable effect on the dynamic mechanical properties of the three-phase composite. The temperature range of loss factor (tanδ) above 0.3 the composite was broadened by almost 100℃ and the maximum of loss factor shifts to higher temperature in the testing temperature range respectively with increasing the ECCB loading. The piezoelectric damping theory was used to explain the experimental results. The three-phase composites with proper composition can be used as high damping polymer materials.
机译:通过简单的混合和模压工艺,制备了一种将导电炭黑(ECCB)和压电陶瓷颗粒PMN嵌入丁基橡胶中的三相复合材料(PMN / ECCB / IIR)。通过动态力学分析(DMA)测试了具有各种ECCB负载的动态力学性能。 DMA显示,ECCB负载对三相复合材料的动态力学性能有显着影响。复合材料的损耗因子(tanδ)的温度范围扩大了近100℃,并且随着ECCB负载的增加,损耗因子的最大值分别在测试温度范围内移至更高的温度。压电阻尼理论被用来解释实验结果。具有适当组成的三相复合材料可用作高阻尼聚合物材料。

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