基于纳米二氧化硅的超疏水表面的制备及性能研究  

Preparation and Properties of Hydrophobic Surfaces Based on Nanosilica Particles

作　　者：李永莲[1] 鄢嘉炜 庄映芬 虞玉峰 佘嘉康 侯欣桦 叶秀雅[1] LI Yonglian;YAN Jiawei;ZHUANG Yingfen;YU Yufeng;SHE Jiakang;HOU Xinhua;YE Xiuya(School of Eco-environment Technology,Guangdong Industry Polytechnic,Guangzhou,Guangdong 510300)

机构地区：[1]广东轻工职业技术学院生态环境技术学院,广东广州510300

出　　处：《绵阳师范学院学报》2022年第8期7-11,共5页Journal of Mianyang Teachers＇ College

基　　金：2020年广东轻工职业技术学院创新创业精致育人项目(2020JZYR021);2021年广东轻工职业技术学院大学生科研项目(XSKYL202121)。

摘　　要：采用化学法制备超疏水纳米二氧化硅表面,并对其疏液性能进行测试.首先选用十二烷基三乙氧基硅烷(DTES)改性纳米二氧化硅,并通过X射线能谱分析和扫描电镜分别对改性前后纳米SiO_(2)颗粒所含元素和表面微观形貌进行表征;然后通过水接触角测试评估改性后纳米SiO_(2)的疏液性能.实验数据表明,经过DTES改性后,SiO_(2)颗粒的粒径变大,表面能更小,对水、酱油、牛奶和咖啡的疏液性能更佳.研究结果显示DTES改性SiO_(2)颗粒能够显著提高纳米SiO_(2)颗粒的超疏水性能,为开发新型疏水涂层奠定了坚实的基础.In this study, nano-silica particles was firstly modified with DTES(dodecyl triethylsilane) by using chemical reaction and the elements and surface of the nanosilica particles with DTES was analyzed by x-ray energy spectroscopy and scanning electron microscope(SEM) respectively. Secondly, the hydrophobic property of the modified SiO_(2) was assessed by water contact angle. Experimental data showed that after DTES modification, the SiO_(2) particles have larger particle size, smaller surface energy and better hydrophobic performance for water, soy sauce, milk and coffee. The results of this paper indicated that DTES modified SiO_(2) particles could significantly improve the superhydrophobic properties of nanosilica particles, laying a solid foundation for the development of novel hydrophobic coatings.

关 键 词：纳米二氧化硅 十二烷基三乙氧基硅烷 疏液性能 

分 类 号：TQ17[化学工程—硅酸盐工业]