A nanocomposite approach to tailor electrocaloric effect in?ferroelectric polymer

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• 作者：Xiang-Zhong Chen ; Xinyu Li ; Xiao-Shi Qian ; Minren Lin ; Shan Wu ; Qun-Dong Shen ; Q.M. Zhang
• 关键词：Ferroelectric polymer ; Electrocaloric effect ; Nanocomposite
• 刊名：Polymer
• 出版年：2013
• 出版时间：6 September, 2013
• 年：2013
• 卷：54
• 期：20
• 页码：5299-5302
• 全文大小：1245 K

文摘

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.