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摘要
以金属铝合金为基底,分别以氯化铜、氢氧化钠及盐酸为刻蚀液,利用十七氟葵基三乙氧基硅烷为疏水剂,制备了不同疏水性能的表面,考察了化学刻蚀液对表面疏水性能的影响。结果表明:在中低温环境中,使用氯化铜或低浓度氢氧化钠对铝合金表面进行刻蚀,其后将其浸渍在含低表面能的有机溶剂中即能制备出具有超疏水性的表面。扫描电镜图表明,利用上述方法制备的表面具有微纳米二级疏水结构。表面疏水性能随刻蚀液浓度的增加而增强,表面接触角随刻蚀时间及刻蚀温度的增加而增大。
Abstract
The surfaces with different hydrophobicity property were prepared on metal aluminum alloy using CuCl2,NaOH and HCl as chemical etching fluid and (heptadecafluoro-1,1,2,2-tetradecyl)triethoxysilane as hydrophobing agent.The impacts of chemical etching fluid on surface hydrophobicity were studied.Experimental results showed that at low/moderate temperature environment superhydrophobicity surfaces can be prepared by etching aluminum alloy by CuCl2 or low concentration NaOH,followed by coating at organic solvent with low energy component.Scanning electronic micrographs (SEM) indicated that using above method surfaces with nano-micro two scaled structure can be prepared.Surface hydrophobicity increased with increased etching fluid concentration.Surface contact angle increased with increased etching time and increased etching temperature.
关键词
超疏水表面
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化学刻蚀
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铝合金
Key words
superhydrophobic surface
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chemical etching
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aluminum alloy
化学刻蚀对超疏水表面性能的影响研究[J].
化工新型材料, 2018, 46(6): 206-209 DOI:
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基金资助
国家自然科学基金项目(U153310152)
