Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings
In this research, we report a simple and inexpensive way to prepare transparent and hydrophobic hybrid coatings through deposition of different silica materials on polyvinyl chloride (PVC) substrates. The silica materials were prepared using an acid-catalyzed sol–gel method at room temperature (25 ±...
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MDPI AG
2021-11-01
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| Online Access: | https://www.mdpi.com/2076-3417/11/22/11044 |
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| author | Violeta Purcar Valentin Rădițoiu Alina Rădițoiu Florentina Monica Raduly Georgiana Cornelia Ispas Simona Căprărescu Adriana Nicoleta Frone Bogdan Trică Cristian-Andi Nicolae Mihai Anastasescu Hermine Stroescu |
| author_facet | Violeta Purcar Valentin Rădițoiu Alina Rădițoiu Florentina Monica Raduly Georgiana Cornelia Ispas Simona Căprărescu Adriana Nicoleta Frone Bogdan Trică Cristian-Andi Nicolae Mihai Anastasescu Hermine Stroescu |
| author_sort | Violeta Purcar |
| collection | DOAJ |
| description | In this research, we report a simple and inexpensive way to prepare transparent and hydrophobic hybrid coatings through deposition of different silica materials on polyvinyl chloride (PVC) substrates. The silica materials were prepared using an acid-catalyzed sol–gel method at room temperature (25 ± 2 °C), using alkoxysilanes: tetraethoxysilane (TEOS), as the silica source, and ethoxydimethylvinylsilane (DMVES), triethoxyoctylsilane (OTES), and trimethoxyhexadecylsilane (HDTMES), as modifier agents. The obtained materials were characterized (either as powders or as thin films) by Fourier-transform infrared spectroscopy (FTIR), UV/Vis spectroscopy, transmission electron microscopy (TEM), thermogravimetric analysis (TGA), atomic force microscopy (AFM), spectroscopic ellipsometry (SE), and water contact-angle measurements. UV/Vis spectra showed that the PVC substrate coated with the silica material containing TEOS/DMVES/OTES had a transmittance of about 90% in the wavelength range of 650–780 nm. The water contact angles increased from 83° for uncoated PVC substrate to ~94° for PVC substrates coated with the sol–gel silica materials. These PVC films with hybrid silica coatings can be used as the materials for outdoor applications, such as energy-generating solar panel window blinds or PVC clear Windmaster outdoor blinds. |
| first_indexed | 2024-03-10T05:43:28Z |
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| id | doaj.art-b13e8834570f441791e89c4311cb88e4 |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T05:43:28Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b13e8834570f441791e89c4311cb88e42023-11-22T22:22:55ZengMDPI AGApplied Sciences2076-34172021-11-0111221104410.3390/app112211044Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid CoatingsVioleta Purcar0Valentin Rădițoiu1Alina Rădițoiu2Florentina Monica Raduly3Georgiana Cornelia Ispas4Simona Căprărescu5Adriana Nicoleta Frone6Bogdan Trică7Cristian-Andi Nicolae8Mihai Anastasescu9Hermine Stroescu10National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaFaculty of Applied Chemistry and Materials Science, Inorganic Chemistry, Physical Chemistry and Electrochemistry Department, University Politehnica of Bucharest, Ghe. Polizu Street, no. 1-7, 011061 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaNational Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaInstitute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, Splaiul Independentei no. 202, 6th District, 060021 Bucharest, RomaniaIn this research, we report a simple and inexpensive way to prepare transparent and hydrophobic hybrid coatings through deposition of different silica materials on polyvinyl chloride (PVC) substrates. The silica materials were prepared using an acid-catalyzed sol–gel method at room temperature (25 ± 2 °C), using alkoxysilanes: tetraethoxysilane (TEOS), as the silica source, and ethoxydimethylvinylsilane (DMVES), triethoxyoctylsilane (OTES), and trimethoxyhexadecylsilane (HDTMES), as modifier agents. The obtained materials were characterized (either as powders or as thin films) by Fourier-transform infrared spectroscopy (FTIR), UV/Vis spectroscopy, transmission electron microscopy (TEM), thermogravimetric analysis (TGA), atomic force microscopy (AFM), spectroscopic ellipsometry (SE), and water contact-angle measurements. UV/Vis spectra showed that the PVC substrate coated with the silica material containing TEOS/DMVES/OTES had a transmittance of about 90% in the wavelength range of 650–780 nm. The water contact angles increased from 83° for uncoated PVC substrate to ~94° for PVC substrates coated with the sol–gel silica materials. These PVC films with hybrid silica coatings can be used as the materials for outdoor applications, such as energy-generating solar panel window blinds or PVC clear Windmaster outdoor blinds.https://www.mdpi.com/2076-3417/11/22/11044sol–gel methodsilica materialshydrophobic coatingsPVC substrate |
| spellingShingle | Violeta Purcar Valentin Rădițoiu Alina Rădițoiu Florentina Monica Raduly Georgiana Cornelia Ispas Simona Căprărescu Adriana Nicoleta Frone Bogdan Trică Cristian-Andi Nicolae Mihai Anastasescu Hermine Stroescu Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings Applied Sciences sol–gel method silica materials hydrophobic coatings PVC substrate |
| title | Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings |
| title_full | Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings |
| title_fullStr | Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings |
| title_full_unstemmed | Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings |
| title_short | Effect of Modified Silica Materials on Polyvinyl Chloride (PVC) Substrates to Obtain Transparent and Hydrophobic Hybrid Coatings |
| title_sort | effect of modified silica materials on polyvinyl chloride pvc substrates to obtain transparent and hydrophobic hybrid coatings |
| topic | sol–gel method silica materials hydrophobic coatings PVC substrate |
| url | https://www.mdpi.com/2076-3417/11/22/11044 |
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