Waterborne, non-fluorinated and durable anti-icing superhydrophobic coatings based on diatomaceous earth

doi:10.1039/d1nj01307f

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Waterborne, non-fluorinated and durable anti-icing superhydrophobic coatings based on diatomaceous earth
	Xie, Hua 1,2,3; Zhao, Xia 1; Li, Bucheng 2,3; Zhang, Jiaojiao 1,2,3; Wei, Jinfei 2,3; Zhang, Junping 2,3,4
刊名	NEW JOURNAL OF CHEMISTRY
	2021
卷号	45 期号:23 页码:10409-10417
关键词	Adhesives Air cushioning Chemical stability Contact angle Freezing Heat transfer Ice Magnesium alloys Polyurethanes Silicones Superhydrophobicity Suspensions (fluids) Vibrations (mechanical) Aqueous suspensions Conventional techniques Environmental stability Ice adhesion strength Mechanical anchoring Micro/nanostructures Superhydrophobic coatings Waterborne Polyurethane
ISSN号	1144-0546
DOI	10.1039/d1nj01307f
英文摘要	Superhydrophobic coatings have great potential for anti-icing compared with conventional techniques (e.g., thermal melting, chemical release and mechanical vibration), but suffer from short water freezing time, environment-unfriendliness, low stability, etc. Here, we report the preparation of waterborne, non-fluorinated and durable anti-icing superhydrophobic coatings based on diatomaceous earth (DE). The coatings are prepared by sequentially spray-coating a waterborne polyurethane aqueous solution and a hexadecyl polysiloxane modified DE aqueous suspension onto various substrates with waterborne polyurethane as the adhesive layer. The coatings have excellent superhydrophobicity (contact angle = 168.1 +/- 1.6 degrees, sliding angle = 4.9 +/- 0.7 degrees). Moreover, the coatings show excellent mechanical, chemical and environmental stability. Furthermore, the coatings on the Mg alloy plate significantly increase the water freezing time to 361 s and reduce the ice adhesion strength to 73.9 kPa at -15 degrees C due to the air cushion trapped in the micro-/nanostructure with low surface energy. The air cushion prevents heat transfer from the substrates to water in the icing process, minimizes the mechanical anchoring effect of ice on the coating, and generates a loose ice structure. The coatings are very promising for practical anti-icing due to the excellent anti-icing performance, high stability and the environmentally friendly preparation method.
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000653914800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148236]
专题	石油化工学院
作者单位	1.Lanzhou Univ Technol, Dept Chem Engn, Coll Petrochem Engn, Lanzhou 730050, Peoples R China; 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Clay Mineral Appl Res Gansu Prov, Lanzhou 730000, Peoples R China; 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China; 4.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xie, Hua,Zhao, Xia,Li, Bucheng,et al. Waterborne, non-fluorinated and durable anti-icing superhydrophobic coatings based on diatomaceous earth[J]. NEW JOURNAL OF CHEMISTRY,2021,45(23):10409-10417.
APA	Xie, Hua,Zhao, Xia,Li, Bucheng,Zhang, Jiaojiao,Wei, Jinfei,&Zhang, Junping.(2021).Waterborne, non-fluorinated and durable anti-icing superhydrophobic coatings based on diatomaceous earth.NEW JOURNAL OF CHEMISTRY,45(23),10409-10417.
MLA	Xie, Hua,et al."Waterborne, non-fluorinated and durable anti-icing superhydrophobic coatings based on diatomaceous earth".NEW JOURNAL OF CHEMISTRY 45.23(2021):10409-10417.