多壁碳纳米管超疏水涂层的制备和性能  

Preparation and property of superhydrophobic coatings contained with multiwalled carbon nanotubes

作　　者：辛菲[1] 安传涛[1] 许国志[1] 孔卫龙[1] 

机构地区：[1]北京工商大学材料与机械工程学院材料科学与工程系,北京100048

出　　处：《化工新型材料》2012年第8期41-43,共3页New Chemical Materials

基　　金：北京市大学生科学研究与创业行动计划建设项目(19005114009);北京工商大学青年教师科研启动基金(QNJJ2011-31)

摘　　要：以硬脂酸钠(SST)和多壁碳纳米管(MWCNT)为原料,采用溶液混合法制备了碳纳米管超疏水涂层。首先将硬脂酸钠与碳纳米管制备成分散溶液,然后过滤。硬脂酸钠可以和乙酸反应生成硬脂酸(STA),使得碳纳米管的表面附着上硬脂酸这种疏水物质。通过扫描电镜(SEM)观察发现薄膜表面有类似于荷叶结构的微小凸起,通过接触角测试仪测得薄膜的接触角为162°,表现出良好的超疏水效果。这种制备超疏水材料的方法简单易行,可重复性好,在需要大面积使用超疏水涂层的领域具有广阔的应用前景。The superhydrophobic coatings were fabricated from multiwalled carbon nanotubes（MWCNT） and stearic acid（STA） by solution mixing. This method involved preparation of a sodium stearate（SST）-stabilized MWCNT dispersion, followed by a precipitating process. STA was assembled on the MWCNT-SST hybrid surface by a reaction of SST with acetic acid. The multiscale protuberances similar to that of the lotus leaf were observed by scanning electron microscopy （SEM）. The contact angle was 162°, revealing excellent superhydrophobic property. This method was easy-doing, well repeatable and can be used in the areas that need large-area superhydrophobic coatings.

关 键 词：多壁碳纳米管 硬脂酸 超疏水 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TB306