功能化液体异烯的网络形成,性能和执行性能
Jishnu Nirmala Suresh1,2, Hans Liebscher3, Hartmut Komber4
1Institute of Materials Science, Faculty of Mechanical Science and Engineering, Dresden University of Technology, 01062 Dresden, Germany.
ACS omega
|February 5, 2024
概括
研究人员开发了一种新的基于异烯的液体,用于介电弹性体执行器. 这种材料提供了卓越的性能,包括更高的介电常数和更大的变形,使其成为先进应用的理想选择.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 执行器技术 执行器技术
背景情况:
- 液体因其有利的性能和可加工性而适用于介电弹性体执行器 (DEA).
- DEAs在自动化,汽车和医疗行业中得到应用.
- 传统的基于的弹性体在性能上有局限性.
研究的目的:
- 开发一种新的可交叉链接液体成分,以提高DEA性能.
- 为了研究基于异烯的新型弹性体的网络形成和材料特性.
- 为了评估开发的弹性体在点点执行器配置中的执行能力.
主要方法:
- 使用无水化物功能性异烯,碳酸终结的-丁和环氧末盖预聚合物,制备一种可交叉链接的液体.
- 氨基酶催化化用于网络形成.
- 使用HR-MAS NMR光谱,弹性模量测量和介电常数确定进行了表征.
- 用开发的异烯弹性体薄膜制造和测试一个点点执行器.
主要成果:
- 一个复杂的网络结构的成功形成得到了HR-MAS NMR的验证.
- 新的异烯弹性体具有低弹性模量 (0.45 MPa) 和高可变性 (300%).
- 与传统的弹性体 (2.2) 相比,具有更高的介电常数 (2.6).
- 制造的点执行器在5kV时显示电极变形明显高 (0.63%) 比商业膜 (∼0.30%) 高得多.
结论:
- 开发的基于异烯的液体是高性能介电弹性体执行器的一个有前途的材料.
- 增强的驱动性能归因于低弹性模量和高介电常数的结合.
- 这种新材料在各种DEA应用中提供了改进功能的潜力.
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