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期刊名称: Nanotechnology
Volume:29    Issue:18        Page:185602-185602
ISSN:0957-4484

Light triggered interfacial damage self-healing of poly(p-phenylene benzobisoxazole) fiber composites期刊论文

作者: Hu Zhen Shao Qing Huang Yudong Yu Long Zhang Dayu
DOI:10.1088/1361-6528/aab010

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页码: 185602-185602
被引频次: 72
出版者: IOP PUBLISHING LTD
期刊名称: Nanotechnology
ISSN: 0957-4484
卷期: Volume:29    Issue:18
语言: English
摘要: The interfacial microcracks in the resin matrix composites are difficult to be detected and repaired. However, the self-healing concept provides opportunities to fabricate composites with unusual properties. In the present study, photothermal conversion Ag-Cu2S nanoparticles were immobilized onto poly(p-phenylene benzobisoxazole) (PBO) fibers via a polydopamine chemistry. Benefitting from the photothermal effects of Ag-Cu2S, the obtained PBO fibers (Ag-Cu2S-PBO) efficiently converted the light energy into heat under Xenon lamp irradiation. Then, single PBO fiber composites were prepared using thermoplastic polyurethane as the matrix. It was found that the interfacial damage caused by single fiber pull-out was simply self-healed by Xe light irradiation. This wonderful interfacial damage self-healing property was mainly attributed to the in situ heating generation via photothermal effects of Ag-Cu2S in the composite interface. This paper reports a novel strategy to construct advanced composites with light-triggered self-healing properties, which will provide inspiration for preparing high performance composite materials.
相关主题: PBO fibers, Light triggered self-healing, photothermal effects, surface modification, interfacial damage, PHYSICS, APPLIED, MATERIALS SCIENCE, MULTIDISCIPLINARY, CARBON-FIBER, GRAPHENE, NANOSCIENCE & NANOTECHNOLOGY, NANOPARTICLES, THERAPY, NANOPLATFORM, GROWTH, PHOTOTHERMAL CONVERSION EFFICIENCY, ABSORPTION, POLYMERIC MATERIALS, light triggered self-healing, SHAPE-MEMORY,

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