在纳米分离网络形成的离子液体中引起冲击的排序
Ke Yang1, Jaejun Lee1, Nancy R Sottos1
1Department of Materials Science and Engineering, ‡Department of Chemistry, and §Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.
Journal of the American Chemical Society
|December 15, 2015
概括
形成网络的离子液体 (NIL) 具有显著的冲击波吸收能力. 它们的纳米分离结构和冲击诱导的排序,特别是在基侧链中,是缓解激光诱导冲击波损伤的关键.
科学领域:
- 材料科学
- 物理化学
- 纳米技术
背景情况:
- 设计有效的吸尘材料对于减轻损害至关重要.
- 了解材料对冲击波的物理和化学反应对于合理的材料设计至关重要.
研究的目的:
- 研究形成网络的离子液体 (NIL) 的冲击波吸收特性.
- 阐明NILs的纳米结构与它们的冲击波缓解能力之间的关系.
主要方法:
- 在一系列NIL上进行了激光诱导的冲击波实验.
- 使用X射线散射进行微观结构分析.
- 观察震后的结构变化以了解能量消耗机制.
主要成果:
- NIL 具有显著的冲击波吸收能力.
- 在X射线散射中发现了基侧链和充电头组的纳米分离.
- 冲击后分析显示低Q区域的变化,表明软基域在冲击波吸收中的作用.
- 在具有较长基侧链 (hexyl) 的NIL中观察到显著的冲击诱导排序.
结论:
- 纳米分离结构对它们的冲击波吸收性能至关重要.
- NIL中的软基域在散射冲击波能量方面发挥着重要作用.
- 在NIL中进行冲击诱导的排序进一步提高了它们的冲击波减轻能力,特别是在优化侧链长度的情况下.
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