A study on hybrid composite coatings: The significance of its surface wettability, dispersibility and thermal degradation performances
Adverse effects of corrosion due to numerous environmental factors have led researchers to explore new generation of nanomaterials such as metal oxide, graphene and graphene oxide (GO) that possess excellent properties to provide ultimate resistance and protection against corrosion to be incorporate...
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my.uniten.dspace-366802025-03-03T15:43:52Z A study on hybrid composite coatings: The significance of its surface wettability, dispersibility and thermal degradation performances Kumar S.S.A. Ramesh K. Ramesh S. Bang L.T. 57216090707 57220754709 41061958200 36241434700 Composite coatings Contact angle Corrosion resistance Corrosion resistant coatings Electrochemical corrosion Electrochemical impedance spectroscopy Field emission microscopes Fourier transform infrared spectroscopy Graphene Polydimethylsiloxane Scanning electron microscopy Silicones Thermogravimetric analysis TiO2 nanoparticles Ultraviolet visible spectroscopy Coating system Composites coating Corrosion protection performance Electrochemical-impedance spectroscopies Field emission scanning electron microscopy Graphene oxide TiO2 nanoparticle Graphene oxides Measurements of Property Water contact angle measurement Titanium dioxide Adverse effects of corrosion due to numerous environmental factors have led researchers to explore new generation of nanomaterials such as metal oxide, graphene and graphene oxide (GO) that possess excellent properties to provide ultimate resistance and protection against corrosion to be incorporated with binder systems made of organic resins. In this investigation, a novel technique was used to employ different loading ratios of TiO2 nanoparticles (0.5-3 wt%) into the acrylic-epoxy polymer matrix with 90:10 wt% (90A:10E) ratio incorporated with 0.5 wt% GO, in order to effectively fabricate GO/TiO2 based hybrid polymer composite coatings. Moreover, 1 wt% polydimethylsiloxane (PDMS) was consistently incorporated in all the coating samples. The samples were then characterized by Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), ultraviolet-visible spectroscopy (UV?vis), water contact angle measurements (WCA), cross-hatch test (CHT), electrochemical impedance spectroscopy (EIS) and field emission scanning electron microscopy (FESEM) respectively. Throughout the immersion time, the EIS studies showed that the corrosion resistant performance was remarkably enhanced by the inclusion of TiO2 nanoparticles over a period of 90 days. At up to the inclusion of 2 wt% TiO2, the obtained FESEM micrographs showed that the TiO2 nanoparticles dispersed uniformly within the GO-based polymeric matrix, hence confirming their superior dispersion, exfoliation and plugging micropore property arising from their laminated structure. The WCA of the GO/TiO2 coatings were observed to increase as the content of TiO2 nanoparticles increased, whereby the highest WCA of 112.5� was exhibited by the 3 wt% of TiO2 coating system. Among the coating systems, the GO/TiO2 (ratio of 0.5:1 wt%) coating system demonstrated optimum impedance modulus values (Z0.01Hz) beyond 1010 �cm2. ? 2024 Elsevier B.V. Final 2025-03-03T07:43:52Z 2025-03-03T07:43:52Z 2024 Article 10.1016/j.porgcoat.2024.108351 2-s2.0-85186578453 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186578453&doi=10.1016%2fj.porgcoat.2024.108351&partnerID=40&md5=8bdcba763dd8ac494e5295c4e50b13f4 https://irepository.uniten.edu.my/handle/123456789/36680 189 108351 Elsevier B.V. Scopus |
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Composite coatings Contact angle Corrosion resistance Corrosion resistant coatings Electrochemical corrosion Electrochemical impedance spectroscopy Field emission microscopes Fourier transform infrared spectroscopy Graphene Polydimethylsiloxane Scanning electron microscopy Silicones Thermogravimetric analysis TiO2 nanoparticles Ultraviolet visible spectroscopy Coating system Composites coating Corrosion protection performance Electrochemical-impedance spectroscopies Field emission scanning electron microscopy Graphene oxide TiO2 nanoparticle Graphene oxides Measurements of Property Water contact angle measurement Titanium dioxide |
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Composite coatings Contact angle Corrosion resistance Corrosion resistant coatings Electrochemical corrosion Electrochemical impedance spectroscopy Field emission microscopes Fourier transform infrared spectroscopy Graphene Polydimethylsiloxane Scanning electron microscopy Silicones Thermogravimetric analysis TiO2 nanoparticles Ultraviolet visible spectroscopy Coating system Composites coating Corrosion protection performance Electrochemical-impedance spectroscopies Field emission scanning electron microscopy Graphene oxide TiO2 nanoparticle Graphene oxides Measurements of Property Water contact angle measurement Titanium dioxide Kumar S.S.A. Ramesh K. Ramesh S. Bang L.T. A study on hybrid composite coatings: The significance of its surface wettability, dispersibility and thermal degradation performances |
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Adverse effects of corrosion due to numerous environmental factors have led researchers to explore new generation of nanomaterials such as metal oxide, graphene and graphene oxide (GO) that possess excellent properties to provide ultimate resistance and protection against corrosion to be incorporated with binder systems made of organic resins. In this investigation, a novel technique was used to employ different loading ratios of TiO2 nanoparticles (0.5-3 wt%) into the acrylic-epoxy polymer matrix with 90:10 wt% (90A:10E) ratio incorporated with 0.5 wt% GO, in order to effectively fabricate GO/TiO2 based hybrid polymer composite coatings. Moreover, 1 wt% polydimethylsiloxane (PDMS) was consistently incorporated in all the coating samples. The samples were then characterized by Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), ultraviolet-visible spectroscopy (UV?vis), water contact angle measurements (WCA), cross-hatch test (CHT), electrochemical impedance spectroscopy (EIS) and field emission scanning electron microscopy (FESEM) respectively. Throughout the immersion time, the EIS studies showed that the corrosion resistant performance was remarkably enhanced by the inclusion of TiO2 nanoparticles over a period of 90 days. At up to the inclusion of 2 wt% TiO2, the obtained FESEM micrographs showed that the TiO2 nanoparticles dispersed uniformly within the GO-based polymeric matrix, hence confirming their superior dispersion, exfoliation and plugging micropore property arising from their laminated structure. The WCA of the GO/TiO2 coatings were observed to increase as the content of TiO2 nanoparticles increased, whereby the highest WCA of 112.5� was exhibited by the 3 wt% of TiO2 coating system. Among the coating systems, the GO/TiO2 (ratio of 0.5:1 wt%) coating system demonstrated optimum impedance modulus values (Z0.01Hz) beyond 1010 �cm2. ? 2024 Elsevier B.V. |
| author2 |
57216090707 |
| author_facet |
57216090707 Kumar S.S.A. Ramesh K. Ramesh S. Bang L.T. |
| format |
Article |
| author |
Kumar S.S.A. Ramesh K. Ramesh S. Bang L.T. |
| author_sort |
Kumar S.S.A. |
| title |
A study on hybrid composite coatings: The significance of its surface wettability, dispersibility and thermal degradation performances |
| title_short |
A study on hybrid composite coatings: The significance of its surface wettability, dispersibility and thermal degradation performances |
| title_full |
A study on hybrid composite coatings: The significance of its surface wettability, dispersibility and thermal degradation performances |
| title_fullStr |
A study on hybrid composite coatings: The significance of its surface wettability, dispersibility and thermal degradation performances |
| title_full_unstemmed |
A study on hybrid composite coatings: The significance of its surface wettability, dispersibility and thermal degradation performances |
| title_sort |
study on hybrid composite coatings: the significance of its surface wettability, dispersibility and thermal degradation performances |
| publisher |
Elsevier B.V. |
| publishDate |
2025 |
| _version_ |
1825816242757304320 |
| score |
13.244413 |