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

Xiang Zhong Chen; Xiao Shi Qian; Xinyu Li; S. G. Lu; Hai Ming Gu; Minren Lin; Qun Dong Shen; Q. M. Zhang

doi:10.1063/1.4722932

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

Xiang Zhong Chen, Xiao Shi Qian, Xinyu Li, S. G. Lu, Hai Ming Gu, Minren Lin, Qun Dong Shen, Q. M. Zhang

Research output: Contribution to journal › Article › peer-review

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Abstract

The electrocaloric effect in the blends of poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) with small amount of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) is investigated. It was found that small amount of P(VDF-TrFE) (∼10 wt. ) can cause a more than 10 increase in the crystallinity in the blends. Although the two polymers form separate crystalline phases, the interfacial couplings to the random defects in the terpolymer convert the normal ferroelectric P(VDF-TrFE) into a relaxor ferroelectric. As a result, the blends with 10 wt. of P(VDF-TrFE) exhibit a 30 increase in the adiabatic temperature change over the entire experimental temperature range (20 °C-60 °C).

Original language	English (US)
Article number	222902
Journal	Applied Physics Letters
Volume	100
Issue number	22
DOIs	https://doi.org/10.1063/1.4722932
State	Published - May 28 2012

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4722932

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

abstract = "The electrocaloric effect in the blends of poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) with small amount of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) is investigated. It was found that small amount of P(VDF-TrFE) (∼10 wt. ) can cause a more than 10 increase in the crystallinity in the blends. Although the two polymers form separate crystalline phases, the interfacial couplings to the random defects in the terpolymer convert the normal ferroelectric P(VDF-TrFE) into a relaxor ferroelectric. As a result, the blends with 10 wt. of P(VDF-TrFE) exhibit a 30 increase in the adiabatic temperature change over the entire experimental temperature range (20 °C-60 °C).",

author = "Chen, {Xiang Zhong} and Qian, {Xiao Shi} and Xinyu Li and Lu, {S. G.} and Gu, {Hai Ming} and Minren Lin and Shen, {Qun Dong} and Zhang, {Q. M.}",

note = "Funding Information: We thank Shan Wu for his assistance in obtaining XRD data. This research was supported by Army Research Office under Grant No. W911NF-11-1-0534 (X. Chen, S. G. Lu, M. Lin, and Q. Zhang) and by the U.S. DoE, Office of Basic Energy Sciences, Division of Materials Science and Engineering under Award No. DE-FG02-07ER46410 (X. Qian and X. Li). X. Chen was also partially supported by Nanjing University, China and H. Gu was in part supported by EE Department of PSU. ",

year = "2012",

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doi = "10.1063/1.4722932",

language = "English (US)",

volume = "100",

journal = "Applied Physics Letters",

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T1 - Enhanced electrocaloric effect in poly(vinylidene fluoride- trifluoroethylene)-based terpolymer/copolymer blends

AU - Chen, Xiang Zhong

AU - Qian, Xiao Shi

AU - Li, Xinyu

AU - Lu, S. G.

AU - Gu, Hai Ming

AU - Lin, Minren

AU - Shen, Qun Dong

AU - Zhang, Q. M.

N1 - Funding Information: We thank Shan Wu for his assistance in obtaining XRD data. This research was supported by Army Research Office under Grant No. W911NF-11-1-0534 (X. Chen, S. G. Lu, M. Lin, and Q. Zhang) and by the U.S. DoE, Office of Basic Energy Sciences, Division of Materials Science and Engineering under Award No. DE-FG02-07ER46410 (X. Qian and X. Li). X. Chen was also partially supported by Nanjing University, China and H. Gu was in part supported by EE Department of PSU.

PY - 2012/5/28

Y1 - 2012/5/28

N2 - The electrocaloric effect in the blends of poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) with small amount of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) is investigated. It was found that small amount of P(VDF-TrFE) (∼10 wt. ) can cause a more than 10 increase in the crystallinity in the blends. Although the two polymers form separate crystalline phases, the interfacial couplings to the random defects in the terpolymer convert the normal ferroelectric P(VDF-TrFE) into a relaxor ferroelectric. As a result, the blends with 10 wt. of P(VDF-TrFE) exhibit a 30 increase in the adiabatic temperature change over the entire experimental temperature range (20 °C-60 °C).

AB - The electrocaloric effect in the blends of poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) with small amount of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) is investigated. It was found that small amount of P(VDF-TrFE) (∼10 wt. ) can cause a more than 10 increase in the crystallinity in the blends. Although the two polymers form separate crystalline phases, the interfacial couplings to the random defects in the terpolymer convert the normal ferroelectric P(VDF-TrFE) into a relaxor ferroelectric. As a result, the blends with 10 wt. of P(VDF-TrFE) exhibit a 30 increase in the adiabatic temperature change over the entire experimental temperature range (20 °C-60 °C).

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

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