机械互锁的气凝与密集的罗塔克桑脊柱
Xinhai Zhang1, Kai Liu1, Jun Zhao1
1School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
Journal of the American Chemical Society
|June 13, 2022
概括
我们通过将动态分子结构整合到3D多孔框架来开发机械互锁气凝 (MIA). 这些新型MIA具有强大的机械性能,适应性响应,以及用于先进材料的多功能功能.
科学领域:
- 材料科学
- 超分子化学
- 纳米技术
背景情况:
- 机械互锁的分子为自适应性材料提供了独特的动态和结构特征.
- 制造复杂且功能强大的机械互锁材料仍然是一个重大挑战.
研究的目的:
- 通过将机械互锁模块集成到3D多孔气凝框架中,引入机械互锁气凝 (MIA) 的概念.
- 将机械适应性和多功能性结合在一个单一的材料实体中.
- 探索MIA在需要强大的机械性能和对外部刺激的反应能力的应用中的潜力.
主要方法:
- 由机械互锁的模块组成的轻量级,三维 (3D) 气凝单体的制造.
- 对等级的中微孔结构和机械性质的表征 (Young的模量,特定的模量).
- 在外部刺激下对机械适应性和响应性的评估.
- 通过吸收,隔热和有机染料的选择性吸附来证明多功能性.
主要成果:
- 成功制造具有层次孔隙性和良好的外观的机械互锁气凝 (MIA).
- MIA具有很高的机械强度,平均Young模量为5.80GPa,特异模量为130.5kN·m/kg.
- 具有良好的机械适应性和对外部刺激的反应能力.
- 在吸收,隔热和有机染料选择性吸附方面,MIA具有多功能性.
结论:
- 机械互锁气凝 (MIA) 成功地整合了机械适应性和多功能性.
- 拟议的MIA设计为具有复杂拓化学结构的智能气凝开辟了新的途径.
- 这项工作促进了机械互锁材料和适应性功能材料的发展.
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