玻璃表面 TiO2疏水涂层的制备与性能研究

本科毕业论文玻璃表面TiO2疏水涂层的制备与性能研究PREPARATIONANDPROPERTIESRESEARCHOFTiO2HYDROPHOBICCOATINGONGLASSSURFACE学院（部）：材料学院专业班级：复合材料08-1班学生姓名：李淼林指导教师：胡路阳2012年6月1日I玻璃表面TiO2疏水涂层的制备与性能研究摘要近几年来，与水的接触角大于150°的超疏水表面引起了极大的关注，因为它在自清洁材料、微流体装置以及生物材料等许多领域中有着极其重要的应用前景。目前，通过剪裁表面的微细结构，人们己经制备出了许多人工超疏水表面。然而，目前制备出的超疏水表面一般都需要特殊的加工设备或复杂的工艺流程。因此，研究出一种简单方便的超疏水表面制备技术仍然是一项具有挑战性的研究课题。在本论文中，我们报道一种简单方便的超疏水表面制备技术，成功的在玻璃基体上获得了疏水效果。本实验用甘油、聚乙烯醇（PVA）、纳米TiO2粉末等为原料，按一定比例配制出混合浆料，然后将浆料涂在玻璃表面用旋涂设备使其均匀分布在玻璃基体表面，制得的样品分别经过烧结和硅烷偶联剂的修饰后表现出良好的疏水效果。关键词：超疏水，TiO2薄膜，旋涂法，透明IIPREPARATIONANDPROPERTIESOFTiO2HYDROPHOBICCOATINGONGLASSSURFACEABSTRACTInthepastfewyears,surfaceswithwatercontactanglelargerthan150°havereceivedalotofresearchattention,duetotheirimportantapplicationsrangingfromself-cleaningmaterialstomicrofluidicdevicesandbiologicalmaterials.Uptonow,artificialsuperhydrophobicsurfaceshavebeenfabricatedbytailoringmicro-structureofsurface.However,thepreparationofthesuperhydrophobicsurfacesgenerallyneedeitherspecialequipmentorcomplexprocess.Therefore,itstillremainsagreatchallengetodevelopsimpleandconvenienttechniquesforthefabricationofsuperhydrophobicsurfaces.Inthispaper,wereportonasimpleandconvenientsuperhydrophobicsurfacespreparationtechonlogy.Wehavesucceedeinpreparationofsuperhydrophobicsurfacesontheglasssubstrates.Inthisexperiment,glycerin,PVA,nano-TiO2powderasrawmaterialsareused,inacertainpercentagemakeamixedslurry.Thentheslurryiscoatedontheglasssubstratesurfacewiththespin-coatingdevice,sothatitevenlydistributedontheglasssubstratesurface,thesampleswereaftersinteringandmodificationofthesilanecouplingagentshowgoodhydrophobiceffect.KEYWORDS:superhydrophobic,TiO2film,spin-coating,transparenti目录摘要.............................................................................................................................................IABSTRACT..............................................................................................................................II第一章绪论...............................................................................................................................11.1引言................................................................................................................................11.2超疏水表面的基本理论...............................................................................................21.2.1静态接触角.........................................................................................................21.2.2Wenzel模型.........................................................................................................31.2.3Cassie模型..........................................................................................................31.2.4Wenzel模型和Cassie模型之间的关系............................................................41.2.5接触角滞后和滚动角.........................................................................................41.3超疏水表面的制备方法...............................................................................................61.3.1蒸汽诱导相分离法.............................................................................................61.3.2模板印刷法.........................................................................................................71.3.3电纺法.................................................................................................................71.3.4溶胶-凝胶法.......................................................................................................71.3.5模板挤压法.........................................................................................................81.3.6激光和等离子体刻蚀法.....................................................................................81.3.7腐蚀法.................................................................................................................81.3.8其他方法.............................................................................................................91.4当前超疏水表面研究出现的问题、发展趋势及其应用前景...................................91.4.1出现的问题.........................................................................................................91.4.2发展趋势.............................................................................................................91.4.3应用前景...........................................................................................................101.5本文选题背景及主要立题思路........................................................................................121.5.1选题背景..................................................................................................................121.5.2立题思路..................................................................................................................12第二章实验材料及测试方法.................................................................................................142.1主要仪器和试剂.........................................................................................................142.1.1主要仪器及设备...............................................................................................142.