"Separation of Oil-Water Via Porous PMMA/SiO₂ Nanoparticles Superhydrop" by Sangeetha Sriram and Aditya Kumar
 

Separation of Oil-Water Via Porous PMMA/SiO₂ Nanoparticles Superhydrophobic Surface

Abstract

A porous superhydrophobic coating on filter paper is developed by employing solution-casting technique using polymethyl methacrylate-co-ethyl acrylate polymer (PMMA) and silica nanoparticles (SiO2). The wettability, surface topography and chemical composition of coating were examined. The coated filter paper shows a static water contact angle of 170° ± 2° and sliding angle of 8° ± 1°. Additionally, thermal stability by annealing at different temperature ranging 40-280 °C, UV stability, chemical stability by immersing in different solutions of pH range of 2-13, and mechanical durability by performing adhesive tape peeling, sand abrasion, and washing tests of coatings were evaluated. Petroleum ether-water mixture and emulsion were successfully separated via a simple filtering method by using coated filter paper with high separation efficiency. Furthermore, coating also exhibits the excellent self-cleaning property. This coating can apply for any size and shape of the filter papers and has tremendous industrial applications.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Coatings; Composite; Oil-water separation; Polymer; Self-cleaning; Superhydrophobic

International Standard Serial Number (ISSN)

0927-7757

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2019 Elsevier B.V., All rights reserved.

Publication Date

01 Feb 2019

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