SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATING
In this research, a kind of environmentally-friendly inorganic-organic hybrid nanocomposite coating based on silica containing titania/silica core/shell nanoparticles was synthesized and characterized for conservation of facade tiles in historical buildings. The matrix of the composite was prepared...
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| Format: | Article |
| Language: | fas |
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Isfahan University of Technology
2021-05-01
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| Series: | Journal of Advanced Materials in Engineering |
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| Online Access: | http://jame.iut.ac.ir/article-1-1085-en.html |
| _version_ | 1831766710174089216 |
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| author | S. Borhani Esfahani H. R. Salimi Jazi M. H. Fathi A. Ershad Langroudi M. Khoshnam |
| author_facet | S. Borhani Esfahani H. R. Salimi Jazi M. H. Fathi A. Ershad Langroudi M. Khoshnam |
| author_sort | S. Borhani Esfahani |
| collection | DOAJ |
| description | In this research, a kind of environmentally-friendly inorganic-organic hybrid nanocomposite coating based on silica containing titania/silica core/shell nanoparticles was synthesized and characterized for conservation of facade tiles in historical buildings. The matrix of the composite was prepared by sol-gel process via two methods of ultrasonic and reflux stirring. Tetraethyl orthosilicate (TEOS) and poly-dimethyl siloxane hydroxy-terminated (PDMS-OH) were used for the formation of silica network and creation of flexibility and hydrophobicity, respectively. Titania nanoparticles were used in the form of titania/silica core/shell as ultraviolet absorber. The synthesized nanocomposite was applied on the microscope slides and tiles by dip coating technique. The properties of nanoparticles and coatings were characterized by Fourier-transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM) and water contact angle measurement. The results revealed that formation of titania/silica core/shell structure was successful. The investigation of PDMS content effect on transparency, cohesion and hydrophobicity of the coating confirmed that the optimum content of this siloxane was around 20 wt.%. In general, the results showed that the silica-based hybrid nanocomposite reinforced with TiO2/SiO2 core/shell nanoparticles could produce a transparent and hydrophobic coating for tile and glass protection. |
| first_indexed | 2024-12-22T06:27:55Z |
| format | Article |
| id | doaj.art-c2d1c50430c144e2841a834562cab4d3 |
| institution | Directory Open Access Journal |
| issn | 2251-600X 2423-5733 |
| language | fas |
| last_indexed | 2024-12-22T06:27:55Z |
| publishDate | 2021-05-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Advanced Materials in Engineering |
| spelling | doaj.art-c2d1c50430c144e2841a834562cab4d32022-12-21T18:35:47ZfasIsfahan University of TechnologyJournal of Advanced Materials in Engineering2251-600X2423-57332021-05-01401125SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATINGS. Borhani Esfahani0H. R. Salimi Jazi1M. H. Fathi2A. Ershad Langroudi3M. Khoshnam4 Department of Materials Engineering, Isfahan University of Technology, Postal Code 84156-83111, Isfahan, Iran Department of Materials Engineering, Isfahan University of Technology, Postal Code 84156-83111, Isfahan, Iran Department of Materials Engineering, Isfahan University of Technology, Postal Code 84156-83111, Isfahan, Iran Faculty of Processing, Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Department of Materials Engineering, Isfahan University of Technology, Postal Code 84156-83111, Isfahan, Iran In this research, a kind of environmentally-friendly inorganic-organic hybrid nanocomposite coating based on silica containing titania/silica core/shell nanoparticles was synthesized and characterized for conservation of facade tiles in historical buildings. The matrix of the composite was prepared by sol-gel process via two methods of ultrasonic and reflux stirring. Tetraethyl orthosilicate (TEOS) and poly-dimethyl siloxane hydroxy-terminated (PDMS-OH) were used for the formation of silica network and creation of flexibility and hydrophobicity, respectively. Titania nanoparticles were used in the form of titania/silica core/shell as ultraviolet absorber. The synthesized nanocomposite was applied on the microscope slides and tiles by dip coating technique. The properties of nanoparticles and coatings were characterized by Fourier-transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM) and water contact angle measurement. The results revealed that formation of titania/silica core/shell structure was successful. The investigation of PDMS content effect on transparency, cohesion and hydrophobicity of the coating confirmed that the optimum content of this siloxane was around 20 wt.%. In general, the results showed that the silica-based hybrid nanocomposite reinforced with TiO2/SiO2 core/shell nanoparticles could produce a transparent and hydrophobic coating for tile and glass protection.http://jame.iut.ac.ir/article-1-1085-en.htmlsilica-based inorganic-organic hybrid nanocompositetitania/silica core/shell nanoparticleshydrophobic coatingtile. |
| spellingShingle | S. Borhani Esfahani H. R. Salimi Jazi M. H. Fathi A. Ershad Langroudi M. Khoshnam SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATING Journal of Advanced Materials in Engineering silica-based inorganic-organic hybrid nanocomposite titania/silica core/shell nanoparticles hydrophobic coating tile. |
| title | SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATING |
| title_full | SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATING |
| title_fullStr | SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATING |
| title_full_unstemmed | SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATING |
| title_short | SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATING |
| title_sort | synthesis and characterization of an environmentally friendly hybrid nanocomposite coating |
| topic | silica-based inorganic-organic hybrid nanocomposite titania/silica core/shell nanoparticles hydrophobic coating tile. |
| url | http://jame.iut.ac.ir/article-1-1085-en.html |
| work_keys_str_mv | AT sborhaniesfahani synthesisandcharacterizationofanenvironmentallyfriendlyhybridnanocompositecoating AT hrsalimijazi synthesisandcharacterizationofanenvironmentallyfriendlyhybridnanocompositecoating AT mhfathi synthesisandcharacterizationofanenvironmentallyfriendlyhybridnanocompositecoating AT aershadlangroudi synthesisandcharacterizationofanenvironmentallyfriendlyhybridnanocompositecoating AT mkhoshnam synthesisandcharacterizationofanenvironmentallyfriendlyhybridnanocompositecoating |