Facile fabrication of self-healing superhydrophobic nanocomposite films enabled by near-infrared light

被引：0
作者：
Wei Li
Gang Wu
Jinhui Tan
Yuntao Zhu
Xufeng Yu
Yang Lei
Gang Sun
Bo You
机构：
[1] Fudan University,Department of Materials Science and the Advanced Films Research Center of the China Educational Ministry
[2] Jiaxing Entry-Exit Inspection and Quarantine Bureau,Department of Aeronautics and Astronautics
[3] Fudan University,undefined
来源：
Journal of Materials Science | 2019年 / 54卷
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摘要：
A novel robust self-healing superhydrophobic F-SiO2/Fe3O4/EP(epoxy)/PCL nanocomposite film was fabricated through a facile two-step method including resin spraying and NPs perpendicular gradient deposition. Specially, the epoxy/polycaprolactone (EP/PCL) mixed resin matrix was prepared through a spraying process and the functioned silica/magnetic iron oxide (F-SiO2/Fe3O4) nanoparticles were then deposited on the resin matrix by gradient distribution under gravity and solvent evaporation. The THF/ethanol mixture solvent which acted as film microstructure-directing agent guided the F-SiO2/Fe3O4 nanoparticles gradient distribution in the nanocomposite films. The results showed that the cutting cracks on the nanocomposite film could be rapidly self-healed and the film would maintain its superhydrophobicity after irradiation by near-infrared light. The nanocomposite films, especially the F-SiO2(8.5wt%)/Fe3O4(1.0wt%)/EP/PCL nanocomposite film, showed high resistant properties on abrasion, corrosive liquids and UV irradiation. The recovery mechanism of the nanocomposite films was also investigated.
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页码：7702 / 7718
页数：16
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