Literature review on superhydrophobic self‐cleaning surfaces produced by electrospinning

Abstract

Self-cleaning surface is potentially a very useful addition for many commercial products due to economic, aesthetic, and environmental reasons. Super-hydrophobic selfcleaning, also called Lotus effect, utilizes right combination of surface chemistry and roughness to force water droplets to form high contact angle on a surface, easily roll off a surface and pick up dirt particles on its way. Electrospinning is a promising technique for creation of superhydrophobic self-cleaning surfaces owing to a wide set of parameters that allow effectively controlling roughness of resulted webs. This article gives a brief introduction to the theory of super-hydrophobic selfcleaning and basic principles of the electrospinning process and reviews the scientific literature where electrospinning was used to create superhydrophobic surfaces. The article reviewed are categorized into several groups and their results are compared in terms of superhydrophobic properties. Several issues with current state of the art and highlights of important areas for future research are discussed in the conclusion. V C 2012 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 50: 2012

Fabrication of Mechanically Stable Superhydrophobic Aluminium Surface with Excellent Self-Cleaning and Anti-Fogging Properties

“…During rolling off, the liquid drops carry away dust particles present on the surface, it is known as self-cleaning phenomena [52]. In this paper, self-cleaning characteristic of the superhydrophobic aluminium surface was also studied.…”

Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications

“…Several techniques exist for enhancing surface roughness to materials for biomimetic and non-wetting applications, such as layer-by-layer assembly 15 , micropatterning/microtexturing 102 , electrospinning 1,5,13 , and electrospraying 32 . Of these approaches, electrospinning and electrospraying are particularly attractive methods due to their scalability and general compatibility with underlying substrates.…”

“…These surfaces are fabricated by introducing high surface roughness on low surface energy materials to establish a resulting airliquid-solid interface that resists wetting [1][2][3][4][5][6] . Depending on the fabrication method, thin or multilayered superhydrophobic surfaces, multilayered superhydrophobic substrate coatings, or even bulk superhydrophobic structures can be prepared.…”

Creating Superhydrophobic and Oleophobic Cotton Fabric Dyed with Reactive Dyes

“…Superhidrofobne površine so zbudile veliko znanstveno in industrijsko zanimanje zaradi svoje vodoodbojnosti in zmanjšanja trenja na površini substrata, lahko pa so tudi samočistilne [1]. Za razvoj takšnih površin se raziskovalci zgledujejo po naravnih sistemih (biomimetika) in se poslužujejo številnih novosti v nanotehnologiji [5][6][7][8]. V naravi najdemo veliko primerov superhidrofobnih površin, kot so na primer krila metuljev, nožice vodnih drsalcev in listi nekaterih rastlin [1,9].…”

“…Med njimi lahko posebej omenimo liste lotosa, za katere so poleg superhidrofobnih značilne tudi samočistilne lastnosti. Te so karakterizirane s statičnimi stičnimi koti vode, večjimi od 150°, in koti zdrsa kaplje vode, manjšimi od 10° [4,5,[7][8][9]. Pomembna dejavnika, ki omogočata doseganje superhidrofobnih in samočistilnih lastnosti tekstilij, sta kemijska sestava in morfologija površine tekstilije [10,11].…”