Branched Hydrocarbon Low Surface Energy Materials for Superhydrophobic Nanoparticle Derived Surfaces

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• 作者：Shirin Alexander ; Julian Eastoe ; Alex M. Lord ; Frédéric Guittard ; Andrew R. Barron
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：January 13, 2016
• 年：2016
• 卷：8
• 期：1
• 页码：660-666
• 全文大小：503K
• ISSN：1944-8252

文摘

We present a new class of superhydrophobic surfaces created from low-cost and easily synthesized aluminum oxide nanoparticles functionalized carboxylic acids having highly branched hydrocarbon (HC) chains. These branched chains are new low surface energy materials (LSEMs) which can replace environmentally hazardous and expensive fluorocarbons (FCs). Regardless of coating method and curing temperature, the resulting textured surfaces develop water contact angles (θ) of ～155° and root-mean-square roughnesses (R_q) ≈ 85 nm, being comparable with equivalent FC functionalized surfaces (θ = 157° and R_q = 100 nm). The functionalized nanoparticles may be coated onto a variety of substrates to generate different superhydrophobic materials.