【作者】 魏涛； 黄志雄； 石敏先；

【Author】 WEI Tao HUANG Zhi-xiong SHI Min-xian(School of Material Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)

【机构】 武汉理工大学材料科学与工程学院；

【摘要】 选择P82压电陶瓷填充环氧树脂,制备P82/EP复合材料。研究P82与EP组分比例、外加应力、测试频率等对复合材料动态力学性能的影响。随着复合材料中P82含量的提高,tanδ_max先减小后增大,Tg、△T先增大后减小。随着外加应力的增大,tanδ_max减小,Tg略向低温方向移动,△T略有增加;随着外力频率的增加,tanδ_max增大,Tg向高温移动,△T略有增加。更多还原

【Abstract】 Piezoelectric ceramic P82 was chose to fill into the epoxy resin,then P82/EP composites were pro- duced.The effect was invested to change the propotion of P82 and epoxy resin,the size of the stress and the testing frequency.With the propotion increase of the P82 in the composites,tanδ_mazminished firstly,then augmented,the status Tg and△T were opposite.With the increase of the stress,tanδ_mazminished,and Tg shifted to lower tempera- ture and△T broadened.With the increase of the stress frequency,tanδ_mazaugmented,Tg shifted to higher tempera- ture and△T broadened slightly.更多还原