硬脂酸/TiO_2/CNF超疏水复合材料的制备与表征  

Preparation and Characterization of Stearic Acid/TiO_2/CNF Super Hydrophobic Composite

作　　者：杨峰 曹坤丽 徐颖异 YANG Feng;CAO Kun-li;XU Ying-yi(Fashion Accessory Art and Engineering College, Beijing Institute of FashionTechnology, Beijing 100029, C;College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China)

机构地区：[1]北京服装学院服饰艺术与工程学院,北京100029 [2]南京林业大学家居与工业设计学院,南京210037

出　　处：《林产工业》2019年第1期43-47,共5页China Forest Products Industry

基　　金：北京服装学院高水平教师队伍建设专项资金(BIFTQG201805);北京市属高校高水平教师队伍建设支持计划(IDHT20180511)

摘　　要：研究了一种利用硬脂酸对纳米二氧化钛(Nano-TiO_2)和纤维素纳米纤维(CNF)复合物进行有机表面修饰的新方法,主要包括纳米二氧化钛、纤维素纳米纤维的制备和利用硬脂酸对Nano-TiO_2/CNF复合体系进行有机表面修饰制得超疏水材料三个工艺过程。通过傅里叶变换红外光谱仪(FTIR)和场发射扫描电子镜(SEM)等对所得的样品进行表征,得出硬脂酸中的—COOH基团与TiO_2/CNF复合体系表面的—OH基团发生脱水反应,并将疏水性—CH_3基团引入复合体系中,复合体系表面构建的纳米级粗糙结构协同体系内引入的疏水基团使最终产物具有超疏水性。In this paper, a new method was reported for the organic surface modification with nano TiO2 and cellulose nano fibers (CNF) by stearic acid.This method mainly included three processes: the preparation of nano titanium dioxide, the preparation of cellulose nano fibers, and the preparation of super hydrophobic materials by stearic acid modified TiO2/CNF system. The samples were characterized by Fourier Transform infrared spectroscopy (FTIR), thermal field emission scanning electron microscopy (SEM) and so on. It was concluded that the -COOH group of stearic acid reacts with the surface -OH group of the TiO2/CNF composite system to dehydrate, the hydrophobic group -CH3 was finally introduced into the composite system. The fact that the rough nano-structure of composite system surface in coordination with the hydrophobic groups introduced in the system make the final product super-hydrophobic.

关 键 词：纳米二氧化钛 纤维素纳米纤维 硬脂酸 有机表面修饰 超疏水 

分 类 号：TS653[轻工技术与工程]