Silica-Based Nanocomposite Turns Cotton into Superhydrophobic Fabric

Sosa, Siari S.

doi:10.1557/mrs2004.253

“…The resulting surface property depends on how the sol was prepared and surface functional groups of the resulted gel. 35,57,70,[93][94][95][96][97][98][99][100][101][102][103][104] Shang et al 113 have prepared optically transparent superhydrophobic silica-based films by means of sol-gel processing and self-assembly. Desired surface roughness was obtained by tuning the microstructures of the sol-gels through careful control of hydrolysis and condensation reactions of various silica precursors during sol-gel processing, whereas modification of surface chemistry was done by introducing a monolayer through surface condensation reaction.…”

Section: Sol-gel Methodsmentioning

confidence: 99%

“…assemble in solution or the gas phase until a stable structure of minimum energy is reached. Bottom-up approaches that have been applied for the preparation of superhydrophobic surfaces include chemical deposition methods such as chemical bath deposition (CBD), 51,63,64,66 chemical vapor deposition (CVD), 63,64 and electrochemical deposition, 60,62,65 layer-bylayer (LBL) deposition via electrostatic assembly, 52,57 colloidal assembly, 59,68,70 sol-gel methods, 35,57,70,[93][94][95][96][97][98][99][100][101][102][103][104] hydrogen bonding, 67 and chemical synthesis. 105 In the following paragraphs, some important examples will be given and discussed in detail.…”

Section: Bottom Up Approachesmentioning

confidence: 99%

What do we need for a superhydrophobic surface? A review on the recent progress in the preparation of superhydrophobic surfaces

Li

¹

,

Reinhoudt

²

,

Crego‐Calama

³

2007

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Superhydrophobic surfaces have drawn a lot of interest both in academia and in industry because of the self-cleaning properties. This critical review focuses on the recent progress (within the last three years) in the preparation, theoretical modeling, and applications of superhydrophobic surfaces. The preparation approaches are reviewed according to categorized approaches such as bottom-up, top-down, and combination approaches. The advantages and limitations of each strategy are summarized and compared. Progress in theoretical modeling of surface design and wettability behavior focuses on the transition state of superhydrophobic surfaces and the role of the roughness factor. Finally, the problems/obstacles related to applicability of superhydrophobic surfaces in real life are addressed. This review should be of interest to students and scientists interested specifically in superhydrophobic surfaces but also to scientists and industries focused in material chemistry in general.

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“…assemble in solution or the gas phase until a stable structure of minimum energy is reached. Bottom-up approaches that have been applied for the preparation of superhydrophobic surfaces include chemical deposition methods such as chemical bath deposition (CBD), 51,63,64,66 chemical vapor deposition (CVD), 63,64 and electrochemical deposition, 60,62,65 layer-bylayer (LBL) deposition via electrostatic assembly, 52,57 colloidal assembly, 59,68,70 sol-gel methods, 35,57,70,[93][94][95][96][97][98][99][100][101][102][103][104] hydrogen bonding, 67 and chemical synthesis. 105 In the following paragraphs, some important examples will be given and discussed in detail.…”

Section: Bottom Up Approachesmentioning

confidence: 99%