摘要 | 第4-6页 |
Abstract | 第6-8页 |
1 Introduction | 第12-26页 |
1.1 Aluminum and its alloys | 第12-15页 |
1.1.1 Characteristics and application of aluminum | 第12-13页 |
1.1.2 Challenges in the use of aluminum and its alloys | 第13-14页 |
1.1.3 Improving the corrosion resistance of aluminum and its alloys | 第14-15页 |
1.2 Superhydrophobicity | 第15-18页 |
1.2.1 Superhydrophobic surface | 第15-16页 |
1.2.2 History of superhydrophobic materials | 第16页 |
1.2.3 Existence of superhydrophobicity in nature | 第16-18页 |
1.3 Theoretical background of superhydrophoic surface | 第18-20页 |
1.3.1 Contact angle and Young's equation | 第18页 |
1.3.2 Wenzel Model | 第18-19页 |
1.3.3 Cassie Model | 第19-20页 |
1.4 Fabrication of superhydrophobic surfaces | 第20-22页 |
1.5 Superhydrophobic material on the aluminum alloy surface and it’s applications in self-cleaning and anti-icing | 第22页 |
1.6 Technical problems in the preparation of superhydrophobic surface | 第22-24页 |
1.7 Objective of this thesis | 第24-26页 |
2 Constructing superhydrophobic aluminum alloy surface via boiling water treatment + Ethanol-STA-H2O solution modification method | 第26-41页 |
2.1 Introduction | 第26页 |
2.2 Experimental work | 第26-30页 |
2.2.1 Experimental materials and apparatus | 第26-27页 |
2.2.2 Fabrication method | 第27-28页 |
2.2.3 Characterization methods and instruments | 第28-30页 |
2.3 Results and discussions | 第30-39页 |
2.3.1 Wettability and structure of aluminum alloy surface | 第30-31页 |
2.3.2 Phase structure of the superhydrophobic aluminum alloy surface | 第31-32页 |
2.3.3 Effect of boiling water treatment time on the wettability of aluminum alloy surface | 第32-33页 |
2.3.4 Effect of temperature on the wettability of aluminum alloy surface an microstructure | 第33-35页 |
2.3.5 Effect of STA immersion time on the aluminum alloy surface wettability | 第35-37页 |
2.3.6 Morphology and Hydrophobic Mechanism of Superhydrophobic aluminum alloy surface | 第37-39页 |
2.4 Summary | 第39-41页 |
3 Fabrication of superhydrophobic aluminum alloy surface by one step method in Ethanol-STA-H2O solution | 第41-49页 |
3.1 Introduction | 第41页 |
3.2 Experimental materials and apparatus | 第41-43页 |
3.2.1 Experimental materials | 第41-42页 |
3.2.2 Experimental apparatus and equipment | 第42页 |
3.2.3 Fabrication method | 第42-43页 |
3.2.4 Surface characterization | 第43页 |
3.3 Results and discussions | 第43-47页 |
3.3.1 Hydrophobic diversity and stability of superhydrophobic aluminum alloy | 第43-44页 |
3.3.2 Microstructure and wettability of aluminum alloy surface | 第44-46页 |
3.3.3 Chemical structure of the superhydrophobic aluminum alloy surface | 第46-47页 |
3.3.4 Mechanism of hydrophobicity | 第47页 |
3.4 Summary | 第47-49页 |
4 Corrosion resistance and antifouling performance of superhydrophobic aluminum alloy surface | 第49-62页 |
4.1 Introduction | 第49-50页 |
4.2 Experimental section | 第50-51页 |
4.2.1 Materials | 第50页 |
4.2.2 Sample characterization | 第50-51页 |
4.3 Corrosion resistance of superhydrophobic surface preparation via two step method | 第51-52页 |
4.4 Corrosion resistance of superhydrophobic aluminum alloy surface construction via one step method | 第52-56页 |
4.4.1 Corrosion potential and corrosion current density of aluminum alloy surface | 第52-54页 |
4.4.2 Analysis of corrosion resistance mechanism on surface of superhydrophobic aluminum alloy | 第54-56页 |
4.5 Self-cleaning performance | 第56-60页 |
4.5.1 Self- cleaning test | 第56页 |
4.5.2 Study on the self-cleaning performance of superhydrophobic aluminum alloy surface through different contaminants | 第56-60页 |
4.6 Summary | 第60-62页 |
5 Conclusion and future prospects | 第62-64页 |
5.1 Conclusion | 第62-63页 |
5.2 Future prospects | 第63-64页 |
Acknowledgement | 第64-65页 |
References | 第65-69页 |
Achievements | 第69页 |