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...
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MDPI AG
2022-06-01
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Series: | Polymers |
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Online Access: | https://www.mdpi.com/2073-4360/14/12/2406 |
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author | Srimala Sreekantan Ang Xue Yong Norfatehah Basiron Fauziah Ahmad Fatimah De’nan |
author_facet | Srimala Sreekantan Ang Xue Yong Norfatehah Basiron Fauziah Ahmad Fatimah De’nan |
author_sort | Srimala Sreekantan |
collection | DOAJ |
description | 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. |
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format | Article |
id | doaj.art-8b8dcac0de6049aea48362de522b5fff |
institution | Directory Open Access Journal |
issn | 2073-4360 |
language | English |
last_indexed | 2024-03-09T22:41:45Z |
publishDate | 2022-06-01 |
publisher | MDPI AG |
record_format | Article |
series | Polymers |
spelling | doaj.art-8b8dcac0de6049aea48362de522b5fff2023-11-23T18:37:24ZengMDPI AGPolymers2073-43602022-06-011412240610.3390/polym14122406Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SSSrimala Sreekantan0Ang Xue Yong1Norfatehah Basiron2Fauziah Ahmad3Fatimah De’nan4School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, MalaysiaSchool of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, MalaysiaSchool of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, MalaysiaSchool of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, MalaysiaSchool of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Pulau Pinang, MalaysiaSuperhydrophobic 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.https://www.mdpi.com/2073-4360/14/12/2406superhydrophobicspray-coatingpolydimethylsiloxanesilica solutionepoxy resinacetone |
spellingShingle | Srimala Sreekantan Ang Xue Yong Norfatehah Basiron Fauziah Ahmad Fatimah De’nan Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS Polymers superhydrophobic spray-coating polydimethylsiloxane silica solution epoxy resin acetone |
title | Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS |
title_full | Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS |
title_fullStr | Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS |
title_full_unstemmed | Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS |
title_short | Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS |
title_sort | effect of solvent on superhydrophobicity behavior of tiles coated with epoxy pdms ss |
topic | superhydrophobic spray-coating polydimethylsiloxane silica solution epoxy resin acetone |
url | https://www.mdpi.com/2073-4360/14/12/2406 |
work_keys_str_mv | AT srimalasreekantan effectofsolventonsuperhydrophobicitybehavioroftilescoatedwithepoxypdmsss AT angxueyong effectofsolventonsuperhydrophobicitybehavioroftilescoatedwithepoxypdmsss AT norfatehahbasiron effectofsolventonsuperhydrophobicitybehavioroftilescoatedwithepoxypdmsss AT fauziahahmad effectofsolventonsuperhydrophobicitybehavioroftilescoatedwithepoxypdmsss AT fatimahdenan effectofsolventonsuperhydrophobicitybehavioroftilescoatedwithepoxypdmsss |