环氧树脂对压电纤维复合材料驱动性能的影响。

Effect of Epoxy Resin on the Actuating Performance of Piezoelectric Fiber Composites.

作者信息

Wang Xiaoyu, Yuan Xi, Wu Mingliang, Gao Feng, Yan Xuemei, Zhou Kechao, Zhang Dou

机构信息

Beijing Spacecraft System Engineering, Beijing 100094, China.

State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.

出版信息

Sensors (Basel). 2019 Apr 16;19(8):1809. doi: 10.3390/s19081809.

DOI:10.3390/s19081809

PMID:31014030

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6514689/

Abstract

Piezoelectric fiber composites (PFC) have shown excellent performance in the areas of vibration control and deformation control. The viscosity and rigidity of the epoxy resin before and after curing, respectively, were very important factors that affected the performance of PFC. In this paper, Aradite 2020, DP 460, and DP 490 epoxy resins, with the viscosities of 0.15, 25.0, and 250.0 Pa·s, respectively, were employed to encapsulate the piezoelectric fiber composite. The PFC that was packaged with Araldite 2020 had the best free strain of 1420 ppm and tip displacement of 17.8 mm. DP 490 caused the lowest performance of PFC, due to the highest viscosity. When the environmental temperature increased from -40 to +80 °C, the free strain of PFC with Aradite 2020 increased at first and then decreased, reaching a maximum value of 1440 ppm at 30 °C, which was mainly related to the mismatch of the resin/ceramic thermal expansion coefficient.

摘要

压电纤维复合材料（PFC）在振动控制和变形控制领域表现出优异的性能。环氧树脂固化前后的粘度和刚度分别是影响PFC性能的非常重要的因素。本文采用粘度分别为0.15、25.0和250.0 Pa·s的Aradite 2020、DP 460和DP 490环氧树脂来封装压电纤维复合材料。用Araldite 2020封装的PFC具有最佳的自由应变1420 ppm和尖端位移17.8 mm。由于粘度最高，DP 490导致PFC的性能最低。当环境温度从-40℃升高到+80℃时，含Araldite 2020的PFC的自由应变先增加后减小，在30℃时达到最大值1440 ppm，这主要与树脂/陶瓷热膨胀系数不匹配有关。