Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS

Superhydrophobic coatings are widely applied in various applications due to their water-repelling characteristics. However, producing a durable superhydrophobic coating with less harmful low surface materials and solvents remains a challenge. Therefore, the aim of this work is to study the effects o...

Full description

Saved in:
Bibliographic Details
Published inPolymers Vol. 14; no. 12; p. 2406
Main Authors Sreekantan, Srimala, Yong, Ang Xue, Basiron, Norfatehah, Ahmad, Fauziah, De’nan, Fatimah
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 14.06.2022
MDPI
Subjects
acetone
Atomic force microscopy
Contact angle
Energy
epoxy resin
Epoxy resins
Fourier transforms
Hexanes
Hydrophobic surfaces
Hydrophobicity
Isopropanol
Nanoparticles
Polydimethylsiloxane
silica solution
Sol-gel processes
Solvents
spray-coating
Substrates
superhydrophobic
Surface roughness
Tiles
United States > US
Malaysia
Germany
Online AccessGet full text

Cover

More Information
Summary:Superhydrophobic coatings are widely applied in various applications due to their water-repelling characteristics. However, producing a durable superhydrophobic coating with less harmful low surface materials and solvents remains a challenge. Therefore, the aim of this work is to study the effects of three different solvents in preparing a durable and less toxic superhydrophobic coating containing polydimethylsiloxane (PDMS), silica solution (SS), and epoxy resin (DGEBA). A simple sol-gel method was used to prepare a superhydrophobic coating, and a spray-coating technique was employed to apply the superhydrophobic coating on tile substrates. The coated tile substrates were characterized for water contact angle (WCA) and tilting angle (TA) measurements, Field-Emission Scanning Electron Microscopy (FESEM), Atomic Force Microscopy (AFM), and Fourier Transform Infrared Spectroscopy (FTIR). Among 3 types of solvent (acetone, hexane, and isopropanol), a tile sample coated with isopropanol-added solution acquires the highest water contact angle of 152 ± 2° with a tilting angle of 7 ± 2° and a surface roughness of 21.80 nm after UV curing for 24 h. The peel off test showed very good adherence of the isopropanol-added solution coating on tiles. A mechanism for reactions that occur in the best optimized solvent is proposed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:2073-4360
2073-4360
DOI:10.3390/polym14122406