通过电沉积及氟硅烷改性而成的三维铜镍复合超疏水表面

刘维仪; 罗孟帆; 罗方; 刘燕; 张延宗; 沈飞; 张小洪; 杨刚; 王莉淋; 邓仕槐

doi:10.1063/1674-0068/cjcp1905109

Three-Dimensional Cu-Ni Composite Superamphiphobic Surface via Electrodeposition and Fluorosilane Modification

doi: 10.1063/1674-0068/cjcp1905109

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Corresponding author: Yan-zong Zhang, E-mail:yzzhang@sicau.edu.cn

摘要

摘要: 将Cu-Ni微纳米颗粒电沉积在铝基底上，通过1H、1H、2H、\2H-全氟癸基三甲氧基硅烷(FAS-17)对其进行修饰，制备了超双疏(SAP)表面.采用扫描电子显微镜、X射线衍射、能量色散X射线光谱和傅里叶变换红外光谱对其形貌和化学成分进行了研究.结果表明，SAP表面具有三维微纳结构，最大水接触角160.0$ ^\circ $，油接触角151.6$ ^\circ $.进一步测试了SAP表面的机械强度和化学稳定性，结果显示该SAP表面具有优良的耐磨性、耐酸耐碱性能、自洁性和防污性能.
- 表面粗糙 /
- 微纳米结构 /
- 低表面能 /
- 自清洁 /
- 耐磨性 /
- 化学稳定性
Abstract: A superamphiphobic (SAP) surface was fabricated by electrodepositing Cu-Ni micro-nano particles on aluminum substrate and modifying via 1H, 1H, 2H, 2H-perfluorodecyltrimethoxysilane. Scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and Fourier-transform infrared spectroscopy were employed to investigate the morphology and chemical composition. The results showed that the SAP surface had three-dimensional micro-nano structures and exhibited a maximum water contact angle of 160.0$ ^{\circ} $, oil contact angle of 151.6$ ^{\circ} $, a minimum water slide angle of 0$ ^{\circ} $ and oil slide angle of 9$ ^{\circ} $. The mechanical strength and chemical stability of the SAP surface were tested further. The experimental results showed that the SAP surface presented excellent resistance to wear, prominent acid-resistance and alkali-resistance, self-cleaning and anti-fouling properties.
- Rough surface /
- Micro-nano structure /
- Low surface energy /
- Self-cleaning /
- Wear resistance /
- Chemical stability

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Scheme 1. Preparation process of Cu-Ni/FAS-17 coating.

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Figure 1. SEM images of (a) polished aluminum and (c) SAP surface, (b) and (d) partial enlarged view of the marked region in (a) and (c)

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Figure 2. (a) XRD patterns of (i) Al substrate and (ii) SAP surface, (b) EDS spectra, (c) XPS spectrum of Al substrate and SAP surface, and (d) FT-IR spectra of (i) Cu-Ni and (ii) SAP surface.

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Figure 3. (a) WCAs and OCAs with different deposition time. (b) SEM image of surface deposition for 8 min. (c) WCAs and OCAs under different processing conditions. (d) Optical image of water and cooking oil droplets on SAP surface.

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Figure 4. (a) The methodology of the abrasion test. (b) WCAs and OCAs, (c) WSAs and OSAs during abrasion test

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Figure 5. Effect of pH value in solution on the wettability ofthe SAP surface.

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Figure 6. Self-cleaning effect experiments: (a1, a2, a3) SAP surface immersed into the contaminated water, (b1) SAP surface dusted with cement paste, (b2, b3) SAP surface cleaned with distilled water, (b4) cement paste completely removed from the surface.

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