A nanocomposite approach to tailor electrocaloric effect in ferroelectric polymer
A nanocomposite approach to tailor electrocaloric effect in ferroelectric polymer
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DOI：
10.1016/j.polymer.2013.07.052
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发表时间：
2013-09-06
期刊：
影响因子：
4.6
通讯作者：
Zhang, Q. M.
中科院分区：
文献类型：
--
作者：
Chen, Xiang-Zhong;Li, Xinyu;Zhang, Q. M.
铁电弛豫聚合物聚偏氟乙烯-三氟乙烯-氯氟乙烯(P(VDF-TrFE-CFE))/ZrO2纳米复合材料的热效应（ECE）得到增强。观察到聚合物基体与纳米填料之间的界面效应增强了极化响应，并提供了额外的电热熵变化。因此，纳米复合材料表现出比纯三元聚合物更大的ECE，即当纳米填料体积为3%时，纳米复合材料的绝热温度变化是纯三元聚合物的120%。研究结果首次表明，可以通过铁电聚合物的纳米复合方法来定制和增强ECE。(c) 2013 Elsevier Ltd.版权所有。
The electrocaloric effect (ECE) is enhanced in ferroelectric relaxor terpolymer poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE))/ZrO2 nanocomposites. It was observed that the interface effects between the polymer matrix and nano-fillers enhance the polarization response and provide additional electrocaloric entropy changes. As a consequence, the nanocomposites exhibit a larger ECE than that of the neat terpolymer, i.e., the adiabatic temperature change of the nanocomposite with 3 volume percent of nano-fillers is 120% of that of the neat terpolymer. The results, for the first time, demonstrate that ECE can be tailored and enhanced through nanocomposite approach in the ferroelectric polymers. (c) 2013 Elsevier Ltd. All rights reserved.