Environmentally benign and durable superhydrophobic coatings based on SiO2 nanoparticles and silanes

doi:10.1016/j.jcis.2019.01.115

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Environmentally benign and durable superhydrophobic coatings based on SiO2 nanoparticles and silanes
	Zhao, Xia 2; Li, Yabin 1,2; Li, Bucheng 1; Hu, Tao 1; Yang, Yanfei 1,3; Li, Lingxiao 1,3; Zhang, Junping 1,3
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2019-04-15
卷号	542 页码:8-14
关键词	Superhydrophobic Wettability Waterborne Silanes Silica
ISSN号	0021-9797
DOI	10.1016/j.jcis.2019.01.115
英文摘要	The literatures about superhydrophobic coatings (SHCs) are increasing every year, however, undesirable chemicals including organic solvents and fluorinated compounds are intensively used in the existing preparation methods, which seriously hinder their large scale production and practical applications. Herein, a simple approach for preparation of totally waterborne, fluorine-free and durable SHCs is reported. First, a waterborne suspension of hexadecyl polysiloxane modified SiO2 (SiO2@HD-POS) was prepared via HCl-catalyzed hydrolytic condensation of hexadecyltrimethoxysilane (HDTMS) and tetraethoxysilane with SiO2 nanoparticles. The SHCs with high water contact angles (CA = 163.9 degrees) and low sliding angles (SA = 3.7 degrees) were prepared simply by sequentially spray-coating a polyurethane (PU) waterborne solution and the SiO2@HD-POS waterborne suspension onto glass slides. The influences of SiO2, HDTMS, reaction time and fabrication temperature on superhydrophobicity were investigated. The SHCs can withstand 80 m of reciprocating abrasion against A4 paper at 4.5 kPa and impacting of at least 50 g of sand microparticles with 30 cm release height. Moreover, the coatings also show exceptional thermostability in boiling water. The SHCs showed promising applications in various areas including oil/water separation and preventing scald, as the method is environmental benign and the coatings are applicable onto various substrates. (C) 2019 Elsevier Inc. All rights reserved.
资助项目	Talents of Innovation and Entrepreneurship Project of Lanzhou, China[2016-RC-77]
WOS研究方向	Chemistry
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000461536400002
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/31955]
专题	石油化工学院
通讯作者	Zhang, Junping
作者单位	1.Chinese Acad Sci, Ctr Ecomat & Green Chem, Lanzhou Inst Chem Phys, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ Technol, Coll Petrochem Engn, Dept Environm Engn, Lanzhou 730050, Gansu, Peoples R China 3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xia,Li, Yabin,Li, Bucheng,et al. Environmentally benign and durable superhydrophobic coatings based on SiO2 nanoparticles and silanes[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2019,542:8-14.
APA	Zhao, Xia.,Li, Yabin.,Li, Bucheng.,Hu, Tao.,Yang, Yanfei.,...&Zhang, Junping.(2019).Environmentally benign and durable superhydrophobic coatings based on SiO2 nanoparticles and silanes.JOURNAL OF COLLOID AND INTERFACE SCIENCE,542,8-14.
MLA	Zhao, Xia,et al."Environmentally benign and durable superhydrophobic coatings based on SiO2 nanoparticles and silanes".JOURNAL OF COLLOID AND INTERFACE SCIENCE 542(2019):8-14.