仿生超疏水棉织物的制备与表面分析  

Biomimetic Superhydrophobic Cotton Textiles:Fabricated and Surface Analysis

作　　者：王前进[1] 安秋风[1] 刘岳[1] 李献起[1] 袁俊敏[1] 

机构地区：[1]陕西科技大学化学与化工学院,轻化工助剂化学与技术教育部重点实验室,陕西西安710021

出　　处：《高分子材料科学与工程》2010年第4期160-162,167,共4页Polymer Materials Science & Engineering

基　　金：浙江省重大科技专项(优先主题)项目(2008C11113);陕西科技大学创新团队项目(SUST-B23)

摘　　要：以荷叶表面微/纳米结构为参考模型,先用硅溶胶处理天然棉织物,再用N-β-氨乙基-γ-氨丙基聚二甲基硅氧烷(ASO-1)对其进行修饰,获得了微/纳米二元粗糙的超疏水织物,水滴在该织物表面接触角可达160.5°。场发射扫描电子显微镜(FE-SEM)观察发现超疏水纤维表面存在大量均匀分布的纳米微凸体。接触角分析表明织物织造过程中形成的微米级粗糙度和ASO-1膜的存在是织物疏水的主要原因,纳米微凸体能减少纤维与水的接触面积,提高水在纤维表面的接触角,使织物由疏水转变为超疏水。最后用X射线光电子能谱仪(XPS)证实了纤维表面SiO2粒子和ASO-1膜的存在。Inspired from the micro/nanoscaled structure of the lotus leaf,we fabricated a superhydrophobic cotton textile with micro/nanoscaled dual-sized roughness surface using silica gol and N-β-aminoethyl-γ-aminopropyl polysiloxane（ASO-1）. The contact angle of the modified textile can reach to 160.5°. Field emission scanning electronic microscope （FESEM） photography showed there are many nano-particles on the treated cotton fabric surface. The contact angle analysis indicated the micro-scale roughness of the textile itself and the hydrophobic films of ASO-1 are the reasons why cotton fabric changed from hydrophilicity to hydrophobicity. Nano-particles formed by silica sol can decrease the contact area between water and textile surface,increasing the contact angle and water-repellent ability. As a result the superhydrophobic textile was fabricated. Finally,the chemical composition of the superhydrophobic cotton textile surface was confirmed by X-ray photoelectron spectroscopy （XPS）.

关 键 词：超疏水 棉纤维 氨基硅 硅溶胶 

分 类 号：TB39[一般工业技术—材料科学与工程]