Crosslinking Methodology for Imidazole-Grafted Silicone Elastomers Allowing for Dielectric Elastomers Operated at Low Electrical Fields with High Strains
文献类型：期刊论文
| 作者 | Kang, Zhaoqing1,2; Yu, Liyun1; Nie, Yi2; Skov, Anne Ladegaard1 |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2022-11-07 |
| 页码 | 10 |
| 关键词 | dielectric elastomer actuator ionic liquid stability chemical modification homogeneity |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.2c16086 |
| 英文摘要 | For improved actuation at low voltages of dielectric elastomers, a high dielectric permittivity has been targeted for several years but most successful methods then either increase the stiffness of the elastomer and/or introduce notable losses of both mechanical and dielectric nature. For polydimethylsiloxane (PDMS)-based elastomers, most high-permittivity moieties inhibit the sensitive platinum catalyst used in the addition curing scheme. In contrast to the classical addition curing pathway to prepare PDMS elastomers, here, an alternative strategy is reported to prepare PDMS elastomers via the crosslinking reaction between multifunctional imidazole-grafted PDMS with difunctional bis(1-ethylene-imidazole-3-ium) bromide ionic liquid (bis-IL). The prepared IL-elastomer entails uniformly dispersed IL and presents stable mechanical and dielectric properties due to the covalent nature of the crosslinking as opposed to previously reported physical mixing in of ILs. The relative permittivity was improved up to 200% by including the bis-IL in the elastomer, and Young's modulus was around 0.04 MPa. As a result of the excellent combination of properties, the dielectric actuator developed exhibits an area strain of 20% at 15 V/mu m. The novel strategy to prepare PDMS elastomers provides a new paradigm for achieving high-performance dielectric elastomer actuators by a simple methodology. |
| WOS关键词 | IONIC LIQUIDS ; PERMITTIVITY ; ACTUATORS |
| 资助项目 | Department of Chemical and Biochemical Engineering, Technical University of Denmark ; National Natural Science Foundation of China ; [22178342] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000883663400001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Department of Chemical and Biochemical Engineering, Technical University of Denmark ; National Natural Science Foundation of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/55565]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Nie, Yi; Skov, Anne Ladegaard |
| 作者单位 | 1.Tech Univ Denmark, Danish Polymer Ctr, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, Zhaoqing,Yu, Liyun,Nie, Yi,et al. Crosslinking Methodology for Imidazole-Grafted Silicone Elastomers Allowing for Dielectric Elastomers Operated at Low Electrical Fields with High Strains[J]. ACS APPLIED MATERIALS & INTERFACES,2022:10. |
| APA | Kang, Zhaoqing,Yu, Liyun,Nie, Yi,&Skov, Anne Ladegaard.(2022).Crosslinking Methodology for Imidazole-Grafted Silicone Elastomers Allowing for Dielectric Elastomers Operated at Low Electrical Fields with High Strains.ACS APPLIED MATERIALS & INTERFACES,10. |
| MLA | Kang, Zhaoqing,et al."Crosslinking Methodology for Imidazole-Grafted Silicone Elastomers Allowing for Dielectric Elastomers Operated at Low Electrical Fields with High Strains".ACS APPLIED MATERIALS & INTERFACES (2022):10. |
入库方式： OAI收割
来源：过程工程研究所
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