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通过界面水分去除和自适应凝,通过水辅助强烈的水下粘附
Chenxi Qin1,2, Yanfei Ma1,3, Zhizhi Zhang1,2
1State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
概括
研究人员开发了一种新型的自强化液体水下粘合剂 (SLU-粘合剂),利用水来增强粘合力,克服了当前方法的局限性. 这一突破使得各种材料在各种条件下能够在水下强大的结合.
科学领域:
- 材料科学 材料科学 材料科学
- 表面化学 表面化学
- 粘附科学 粘附科学 粘附科学
背景情况:
- 由于水在接口上的破坏性存在,水下粘附具有挑战性.
- 现有的去除界面水的方法往往是低效的,特别是对于水合水,导致不理想的粘附.
- 开发有效的水下粘合剂对于许多海洋和工业应用至关重要.
研究的目的:
- 介绍一种新型的自强化液体水下粘合剂 (SLU-粘合剂),利用水提高粘合力.
- 通过物理化学合来有效地去除接口水的新策略.
- 为了在各种材料和环境条件下实现卓越的水下粘附性能.
主要方法:
- 开发一种液体水下粘合剂,采用从毫米到分子水平的多尺度物理化学合.
- 在水下操作过程中整合自适应强化机制的整合.
- 使用光热纳米粒子 (碳纳米管) 进行混合,通过近红外激光辐射加速固化.
主要成果:
- 在没有预加载的情况下,在各种材料 (金属,塑料) 上实现了超过1600kPa的强水下粘附.
- 在各种水性环境中表现出强大的性能,包括纯水,pH值为3-11的溶液和海水.
- 使用SLU粘合剂/碳纳米管混合材料和近红外激光,将固化时间从24小时缩短到40分钟.
结论:
- 开发的SLU粘合剂有效地去除接口水,并通过"水助手"概念增强粘合力.
- 该材料具有出色的粘合强度和自我适应性,适用于苛刻的水下应用.
- 这种方法为推进水下粘附技术,维修和制造战略提供了巨大的潜力.
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