铝合金表面三嗪二硫醇和硅烷纳米复合薄膜的制备及表征  

Preparation and characterization of triazine dithiol and silane composite nano-film on aluminum alloy surface

作　　者：王芳[1] 王茜[1] 王亚斌[1] 刘俊俊[1] 

机构地区：[1]西北农林科技大学理学院,陕西杨凌712100

出　　处：《功能材料》2011年第3期432-435,共4页Journal of Functional Materials

基　　金：教育部留学回国人员科研启动基金资助项目(K314020902);中央高校基本科研业务费专项资金资助项目(A111020906)

摘　　要：通过电化学方法,在铝合金表面制备6-N,N-二丁基胺-1,3,5-三嗪-2,4-二硫醇单盐(DBN)的纳米聚合薄膜(PDB),然后采用自组装技术对铝合金表面PDB膜进行十六烷基三甲氧基硅烷化处理,形成疏水性的高分子纳米复合薄膜(CPDB)。通过循环伏安法解释了DBN在铝合金表面的反应及PDB的生长过程,同时分析了CPDB膜的形成机理。借助傅里叶变换红外光谱仪(FT-IR)、X射线光电子能谱仪(XPS)、扫描电子显微镜(SEM)、接触角测量仪对铝合金表面薄膜的特性进行了表征。结果表明,PDB膜形成后铝合金表面的接触角从未镀膜的89.9°上升到124.3°,CPDB膜形成后接触角达135.8°;SEM和XPS测定表明该方法可以有效地在铝合金表面获得均匀致密的高分子纳米复合薄膜。Polymeric nano-films（PDB） are prepared by electrochemical polymerization of 6-N,N-dibutylamino-1,3,5-triazine-2,4-dithiol monosodium（DBN） on aluminum alloy surface.Then the PDB film is treated by silanization of hexadecyltrimethoxysilane to form the composite nano-films（CPDB）.The cyclic voltammetry curves were used to study the reaction and film growth process of PDB on aluminum alloy surface.The formation mechanism of CPDB film was also be analyzed and the film was characterized by means of FT-IR spectrometer,X-ray photoelectron spectroscopy,scanning electron microscope and contact angle.The results showed that the contact angle of aluminum alloy surface covered by PDB film was up to 124.3 °compared with 89.9° for blank aluminum alloy,and the contact angle of the sample covered by CPDB composite nano-film＇s was 135.8 °.From SEM images and XPS spectroscopy on aluminum alloy surface,homogeneous and compact composite nano-films were obtained.

关 键 词：铝合金 6-N N-二丁基胺-1 3 5-三嗪-2 4-二硫醇单盐 电化学聚合 硅烷化处理 纳米复合薄膜 

分 类 号：TB333[一般工业技术—材料科学与工程] TB34