超双疏铝合金表面的制备与形成机理分析

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1、摘要超双疏具有自清洁、防腐、减阻等性能，在工农业领域得到广泛应用。本文采用复合加工手段制备超双疏铝合金表面，并对其超双疏机理进行分析，研究结论如下:1、采用高速电火花线切割在铝合金表面制备出超疏水表面，并对加工参数进行了试验优化，研究了各因素对接触角的影响规律；经化学刻蚀和修饰后，实现了超双疏铝合金表面的制备，优化了化学刻蚀试剂的浓度和刻蚀时间。2、采用激光刻蚀在铝合金表面构建微米级方柱结构，并对加工参数进行了试验优化，研究了各因素对接触角的影响规律；经电火花和化学修饰后，实现了超双疏铝合金表面的制备。3、由于超双疏铝合金表面独特

2、的双尺度复合微观结构和低表面能物质的共同作用，mn液滴在其表面的接触状态呈现C—C模型。关键词：铝合金超双疏复合加工双尺度结构I万方数据ABSTRACTSuperamphiphobicsurfacehasself-cleaning,anti-corrosion,dragreductionandotherproperties,widelyusedinindustrialandagriculturalfields.Thispaperpresentedthecompositeprocessingmethodsofpreparingsup

3、eramphiphobicsurface,andanalyzedthemechanismofsuperamphiphobicsurface.Conclusionsareasfollows.1.Tookmethodsofhighspeedwirecutelectricaldischargemachining(HS-WEDM)tofabricatesuperhydrophobicaluminumalloysurfaceandoptimizedtheprocessingparameterstostudytheinfluenceofvar

4、iousfactorsonthecontactangle.Afterchemicaletchingandmodification,superamphiphobicaluminumalloysurfacewassuccessfullyprepared,andthechemicaletchingreagentsconcentrationandetchingtimewereoptimized.2.Thealuminumalloysurfacewasconstructedtheetchingmicronsquarepillarstruct

5、urebylaseretching,andtheprocessingparameterswereoptimizedtostudythetheinfluenceofvariousfactorsonthecontactangle.AfterHS-WEDMandchemicalmodification,superamphiphobicaluminumalloysurfacewassuccessfullyprepared.3.Thealuminumalloysurfaceundertheactionoftheuniquedual-scal

6、ecompositemicrosturcturesandlowsurfaceenergyhadsuperamphiphobicproperty,andthecontactstatemnofthedropletsonitssurfacepresentedC—Cmodel.Keywords:aluminumalloysuperamphiphobiccompositeprocessingdual-scalestructureII万方数据目录摘要ABSTRACT目录第一章绪论................................

7、..............................................................................11.1本文选题背景及意义................................................................................................11.2超双疏国内外研究现状...................................................................

8、.........................21.2.1超双疏表面制备......................................................................................