title: Constructing Fluorine-Free and Cost-Effective Superhydrophobic Surface with Normal-Alcohol-Modified Hydrophobic SiO2Nanoparticles.
abstract: Superhydrophobic coatings have drawn much attention in recent years for their wide potential applications. However, a simple, cost-effective, and environmentally friendly approach is still lacked. Herein, a promising approach using nonhazardous chemicals was proposed, in which multiple hydrophobic functionalized silica nanoparticles (SiO2NPs) were first prepared as core component, through the efficient reaction between amino group containing SiO2NPs and the isocyanate containing hydrophobic surface modifiers synthesized by normal alcohols, followed by simply spraying onto various substrates for superhydrophobic functionalization. Furthermore, to further improve the mechanical durability, an organic-inorganic composite superhydrophobic coating was fabricated by incorporating cross-linking agent (polyisocyanate) into the mixture of hydrophobic-functionalized SiO2NPs and hydroxyl acrylic resin. The hybrid coating with cross-linked network structures is very stable with excellent mechanical durability, self-cleaning property and corrosion resistance.
authors.affiliation: Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China.
authors.forename: Hui
authors.initials: H
authors.lastname: Ye
authors.affiliation: Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China.
authors.forename: Liqun
authors.initials: L
authors.lastname: Zhu
authors.affiliation: Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China.
authors.forename: Weiping
authors.initials: W
authors.lastname: Li
authors.affiliation: Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China.
authors.forename: Huicong
authors.initials: H
authors.lastname: Liu
authors.affiliation: Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University , No. 37 Xueyuan Road, Haidian District, Beijing 100191, People's Republic of China.
authors.forename: Haining
authors.identifier: http://orcid.org/0000-0002-7543-3674
authors.initials: H
authors.lastname: Chen
keywords: SiO2 nanoparticles; fluorine-free; mechanical durability; organic−inorganic composite coating; superhydrophobic