Photothermal healing of a glass fiber reinforced composite interface by gold nanoparticles
Photothermal healing of a glass fiber reinforced composite interface by gold nanoparticles
复制标题
金纳米粒子光热修复玻璃纤维增强复合材料界面
DOI：
10.1039/c5ra14652f
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发表时间：
2015-11
期刊：
影响因子：
3.9
通讯作者：
Zhang, Boyu
中科院分区：
文献类型：
--
作者：
Jiao, Weicheng;Liu, Wenbo;Wang, Qi;Zhang, Boyu
纤维增强复合材料中微裂纹的形成是一个关键问题，尤其是在界面区域。在材料发生灾难性失效之前修复微裂纹是实现长寿命运行的有希望的解决方案。在这种情况下，一种新的方法证明了玻璃纤维增强复合材料的界面愈合使用的光热效应的金纳米粒子（Au NPs）。Au纳米粒子成功地分散到玻璃纤维增强复合材料的界面区域。一旦发生界面损伤，可以使用激光照射Au NPs以通过光热效应产生大量的热。这将熔化树脂并在纤维和PMMA之间形成机械互锁以产生新的界面。通过微键合测试证实，含有Au NPs的复合材料具有愈合能力，在优化条件下的最大愈合效率为98.5%。研究发现，Au纳米粒子的密度和辐照强度在修复过程中起关键作用。
The formation of microcracks especially in the interfacial region is a critical problem for fiber reinforced composites. Repairing the microcracks before catastrophic failure of the materials takes place is a promising solution to achieve long lifetime operation. In this context, a novel method is demonstrated for interfacial healing of glass fiber reinforced composites using the photothermal effect of gold nanoparticles (Au NPs). Au NPs were successfully dispersed into the interfacial region of a glass fiber reinforced composite. Once the interfacial damage occurred, a laser could be used to illuminate Au NPs to generate a large amount of heat through the photothermal effect. This would melt the resin and form mechanical interlocking between the fiber and PMMA to create a new interface. It has been confirmed by a micro bond test that the composite containing Au NPs has healing ability with a maximum healing efficiency of 98.5% under optimized conditions. The mechanism of the interfacial healing was also investigated and it is found that the density of Au NPs and irradiation intensity play key roles in the healing process.
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影响因子：
9.1
作者：
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通讯作者：
Amy M. Peterson;R. E. Jensen;G. Palmese
影响因子：
16.6
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影响因子：
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影响因子：
3.5
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
Kotov, Nicholas A.