通过相分离来制备坚硬和硬的离子凝
Jinliang Xie1, Xiaoqian Li2, Zhongjie He1
1School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an, Shaanxi 710072, P. R. China. zhengyp@nwpu.edu.cn.
Materials horizons
|November 1, 2023
概括
本研究介绍了一种简单的方法来增强柔性电子产品的离子凝. 通过控制聚烯胺-离子液体系统中的相分离,研究人员在产生的离子凝中显著提高了机械强度和稳定性.
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
- 软机器人软机器人 软机器人软机器人
背景情况:
- 离子提供了可取的特性,如热稳定性和离子导电性,用于灵活的电子和软机器人.
- 然而,由于机械强度不佳和复杂的合成,它们的广泛应用受到阻碍.
研究的目的:
- 开发一种简单而有效的策略,以提高离子凝的机械性能.
- 探索相隔行为和离子凝特性之间的关系.
主要方法:
- 研究了一种具有上临界溶液温度 (UCST) 的聚合物-离子液体 (IL) 双系统和伯格曼斯点.
- 通过操纵低于Berghmans点的冷却速度来控制相位分离的程度.
- 合成和表征的多烯胺 (PAM) -IL离子凝.
主要成果:
- 一个PAM-IL系统展示了UCST和Berghmans的点,使可调节的相位分离.
- 实现了显著增强的机械性能:拉伸强度 (31.1 MPa),拉伸模量 (319.8 MPa),压力强度 (122 MPa) 和压力模量 (1.7 GPa).
- 由此产生的离子凝具有高透明度,伸展性,稳定性和多功能性.
结论:
- 通过控制的冷却速率调整相位分离是一种可行的策略,可以提高电离凝的性能.
- 开发的PAM-IL离子凝由于其卓越的机械性能和稳定性,在柔性电子和软机器人领域具有很大的应用潜力.
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