Enhanced electrocaloric effect in poly(vinylidene fluoride-trifluoroethylene)-based terpolymer/copolymer blends

2012 ◽  
Vol 100 (22) ◽  
pp. 222902 ◽  
Author(s):  
Xiang-zhong Chen ◽  
Xiao-shi Qian ◽  
Xinyu Li ◽  
S. G. Lu ◽  
Hai-ming Gu ◽  
...  
Keyword(s):  
Vinylidene Fluoride ◽  
Electrocaloric Effect ◽  
Copolymer Blends ◽  
Poly Vinylidene Fluoride

Enhanced Electrocaloric Effect in Poly(vinylidene fluoride-trifluoroethylene)-based Composites

2013 ◽  
Vol 1490 ◽  
pp. 235-240
Author(s):  
Xiang-Zhong Chen ◽  
Xiao-Shi Qian ◽  
Xinyu Li ◽  
David Sheng-Guo Lu ◽  
Haiming Gu ◽  
...  
Keyword(s):  
Polymer Blends ◽  
Vinylidene Fluoride ◽  
Inorganic Nanoparticles ◽  
Relaxor Behavior ◽  
Electrocaloric Effect ◽  
Ferroelectric Relaxor ◽  
Poly Vinylidene Fluoride

ABSTRACTThe poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) based ferroelectric and relaxor materials have been proved to be good electrocaloric (EC) materials. To further enhance the EC effect in ferroelectric relaxor terpolymer poly(vinylidene fluoride–trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)), composites such as polymer-polymer blends and nanocomposites filled with inorganic nanoparticles are fabricated and investigated. It is found that the addition of small amount of filler (such as P(VDF-TrFE) or nano-ZrO2) can increase terpolymer’s crystallinity and enhance its relaxor behavior through interface couplings. The increased crystallinity and enhanced relaxor behavior together result in enhanced electrocaloric effect. The results demonstrate the promise of composite approaches in tailoring and enhancing ECE in the relaxor terpolymers.

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