疏水性透明γ-AlOOH/FAS复合薄膜的制备与性能  

Preparation and Properties of Hydrophobic γ-AlOOH/FAS Composite Coating Films with High Transparency

作　　者：石涛[1,2] 申乾宏[1] 周箭[1] 杨辉[1] 

机构地区：[1]浙江大学材料科学与工程学系,浙江杭州310027 [2]浙江林学院理学院,浙江临安311300

出　　处：《材料科学与工程学报》2009年第5期657-660,共4页Journal of Materials Science and Engineering

基　　金：浙江省重大科技计划资助项目(2006C11029)

摘　　要：采用溶胶-凝胶法和表面改性结合的方法制备了疏水性透明-γAlOOH/FAS复合薄膜,勃姆石(γ-AlOOH)薄膜经沸水处理表面形成网格状粗糙结构,氟硅烷(十三氟辛基三乙氧基硅烷,FAS)被用作疏水剂涂敷在勃姆石薄膜表面。研究采用XRD,SEM,接触角测定仪及UV-vis分光光度计对薄膜相结构、表面形貌、接触角及可见光透过率进行了一系列表征。研究结果表明:采用溶胶-凝胶法和表面改性结合的方法制备的-γAlOOH/FAS复合薄膜具有高的透明性和疏水性,复合薄膜对可见光透过率达90%以上,对水的接触角为120.3°。Transparent,hydrophobic γ-AlOOH/FAS composite films were prepared on glass substrates by a combination of sol-gel and surface modification approaches.Boehmite films with a flowerlike structure were formed by immersing boehmite gel films in boiling water.Fluoroalkyltriethoxysilane（FAS,tridecafluorooctyltriethoxysilane）,as a water-repellent agent,was coated on a grid-like boehmite film.The structure,morphology,contact angle and transmittance of visible light of the composite films were investigated by powder X-ray diffractometry（XRD）,scanning electron microscopy（SEM） and UV-vis spectrophotometer as well. The results showed that the prepared γ-AlOOH/FAS composite coating films held high transparency and hydrophobicity,the transmittance for visible light was higher than 90%,and the contact angle for water was larger than 120.3°.

关 键 词：γ-AlOOH/FAS复合薄膜 疏水性 透明 溶胶-凝胶法 

分 类 号：O648.16[理学—物理化学] O647.5[理学—化学]