Durable superamphiphobic nano-silica/epoxy composite coating via coaxial electrospraying method
| Autor: | Ying Li, Xiaoyan Li, Kai Huang, Hua Zou, Hui Li, Biwei Qiu, Xia Wang, Yu Dengguang |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
General Physics and Astronomy Modulus 02 engineering and technology Surfaces and Interfaces General Chemistry Epoxy engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Durability Surface energy 0104 chemical sciences Surfaces Coatings and Films Composite coating Coating visual_art Nano visual_art.visual_art_medium engineering Coaxial Composite material 0210 nano-technology |
| Zdroj: | Applied Surface Science. 436:283-292 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2017.11.241 |
| Popis: | In this study, a durable superamphiphobic nano-silica and epoxy composite coating with good environment resistant was successfully fabricated. Fluorinated nano-silica with low surface energy was prepared by in situ sol-gel method, which can be stably dispersed in the solution. Applying fluorinated nano-silica dispersion as sheath and epoxy solution as core, fluorinated nano-silica/epoxy superamphiphobic composite coating was prepared by a coaxial electrospraying method. Fluorinated nano-silica with uniform nano-size was distributed evenly on the micro epoxy particles, showing a special micro-nano hierarchical structure. Nano-indentation shows evident improvement in modulus and hardness of fluorinated nano-silica/epoxy composite coating than that of raw epoxy. In addition, durability of the superamphiphobic coating was assessed by performing harsh chemical environments immersion and scotch tape test. |
| Databáze: | OpenAIRE |
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