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DOI	10.1016/j.scib.2020.12.033
	On the understanding of dielectric elastomer and its application for all-soft artificial heart
	Wu W.; Zhang S.; Wu Z.; Qin S.; Li F.; Song T.; Cao X.; Wang Z.L.; Zhang L.
发表日期	2021
ISSN	20959273
起始页码	981
结束页码	990
卷号	66 期号:10
英文摘要	Although dielectric elastomer (DE) with substantial actuated strain (AS) has been reported 20 years ago, its scientific understanding remains unclear. The most accepted theory of DE, which is proposed in 2000, holds the view that AS of DE is induced by the Maxwell stress. According to this theory, materials have similar ratios of permittivity and Young's modulus should have similar AS, while the experimental results are on contrary to this theory, and the experimental AS has no relationship with ideal AS. Here, a new dipole-conformation-actuated strain cross-scale model is proposed, which can be generally applied to explain the AS of DE without pre-strain. According to this model, several characteristics of an ideal DE are listed in this work and a new DE based on polyphosphazene (PPZ) is synthesized. The AS of PPZ can reach 84% without any pre-strain. At last, a PPZ-based all soft artificial heart (ASAH) is built, which works in the similar way with natural myocardium, indicating that this material has great application potential and possibility in the construction of an ASAH for heart failure (HF) patients. © 2020 Science China Press
关键词	Artificial heart Dielectric elastomer Heart failure Polyphosphazene
英文关键词	Elastic moduli; Elastomers; Medical applications; Dielectric elastomers; Heart failure; ITS applications; Maxwell stress; Polyphosphazenes; Pre-strain; Scale modeling; Artificial heart
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207611
作者单位	Center of Advanced Elastomer Materials, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China; Engineering Research Center of Ministry of Education on Energy and Resource Saved Elastomers, Beijing University of Chemical Technology, Beijing, 100029, China; Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China; Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100140, China; Research Center for Bioengineering and Sensing Technology, Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, and Beijing Municipal Key Laboratory of New Energy Materials and Technologies, University of Science and Technology Beijing, Beijing, 100083, China; Key Laboratory of Carbon Fiber and Functional Polymers, Beijing University of Chemical Technology (Ministry of Education), Beijing, 100029, China; School of Materi...
推荐引用方式 GB/T 7714	Wu W.,Zhang S.,Wu Z.,et al. On the understanding of dielectric elastomer and its application for all-soft artificial heart[J],2021,66(10).
APA	Wu W..,Zhang S..,Wu Z..,Qin S..,Li F..,...&Zhang L..(2021).On the understanding of dielectric elastomer and its application for all-soft artificial heart.Science Bulletin,66(10).
MLA	Wu W.,et al."On the understanding of dielectric elastomer and its application for all-soft artificial heart".Science Bulletin 66.10(2021).