Hybrid coating prepared with PMMA/Ti-O-Si tested under vacuum conditions for use in nanosatellites.
A hybrid coating made of poly (methyl methacrylate) with SiO2-TiO2 particles (PMMA/SiO2-TiO2) has been developed for use as a coating on nanosatellites, evaluating its resistance to high vacuum by quantifying its weight loss. The coating was applied on an Al 7075 aluminum substrate used for the aero...
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| Language: | English |
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Public Library of Science (PLoS)
2025-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0313785 |
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| author | Bryanda G Reyes-Tesillo Genoveva Hernández-Padrón Jorge A Ferrer-Pérez Alfredo Maciel-Cerda |
| author_facet | Bryanda G Reyes-Tesillo Genoveva Hernández-Padrón Jorge A Ferrer-Pérez Alfredo Maciel-Cerda |
| author_sort | Bryanda G Reyes-Tesillo |
| collection | DOAJ |
| description | A hybrid coating made of poly (methyl methacrylate) with SiO2-TiO2 particles (PMMA/SiO2-TiO2) has been developed for use as a coating on nanosatellites, evaluating its resistance to high vacuum by quantifying its weight loss. The coating was applied on an Al 7075 aluminum substrate used for the aerospace sector. PMMA/SiO2-TiO2 hybrid coatings were prepared using sol-gel reaction in situ assisted with sonochemistry. The SiO2 particles and TiO2 (50:50% wt. of rutile/anatase) particles by tetraethyl orthosilicate (TEOS), and Titanium (IV) Isopropoxide (TIPO). Radical polymerization of methyl methacrylate (MMA) monomer was conducted with (3-mercaptopropyl) trimethoxy silane (3-MPTS) used as a coupling molecular agent, and benzoyl peroxide as a catalyst. The coatings obtained have a thickness of 20 μm which were deposited by blade coating technique on the substrate, obtaining homogeneous and defect-free coatings. Adhesion and hardness were measured using ASTM standards required for this sector. To evaluate its resistance to ultra-high vacuum, it was done as close as possible to the ASTM E-595 norm [1], where it indicates that the coatings must be evaluated at vacuum conditions of 10-5 Torr and 125°C for a period of 24 hours. The coatings were evaluated before and after the test by spectroscopy analysis to determine a possible degradation in the chemical structure. The resulting weight loss not exceeding 0.02%, and the addition of Ti-O-Si particles led to an increase in chemical stability under vacuum conditions without affecting the chemical structure of the highly cross-linked PMMA/Ti-O-Si matrix, which was monitored by FTIR and Raman spectroscopy. |
| format | Article |
| id | doaj-art-87558a4b2c9d467e83216dc129142721 |
| institution | Kabale University |
| issn | 1932-6203 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj-art-87558a4b2c9d467e83216dc1291427212025-01-17T05:31:28ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01201e031378510.1371/journal.pone.0313785Hybrid coating prepared with PMMA/Ti-O-Si tested under vacuum conditions for use in nanosatellites.Bryanda G Reyes-TesilloGenoveva Hernández-PadrónJorge A Ferrer-PérezAlfredo Maciel-CerdaA hybrid coating made of poly (methyl methacrylate) with SiO2-TiO2 particles (PMMA/SiO2-TiO2) has been developed for use as a coating on nanosatellites, evaluating its resistance to high vacuum by quantifying its weight loss. The coating was applied on an Al 7075 aluminum substrate used for the aerospace sector. PMMA/SiO2-TiO2 hybrid coatings were prepared using sol-gel reaction in situ assisted with sonochemistry. The SiO2 particles and TiO2 (50:50% wt. of rutile/anatase) particles by tetraethyl orthosilicate (TEOS), and Titanium (IV) Isopropoxide (TIPO). Radical polymerization of methyl methacrylate (MMA) monomer was conducted with (3-mercaptopropyl) trimethoxy silane (3-MPTS) used as a coupling molecular agent, and benzoyl peroxide as a catalyst. The coatings obtained have a thickness of 20 μm which were deposited by blade coating technique on the substrate, obtaining homogeneous and defect-free coatings. Adhesion and hardness were measured using ASTM standards required for this sector. To evaluate its resistance to ultra-high vacuum, it was done as close as possible to the ASTM E-595 norm [1], where it indicates that the coatings must be evaluated at vacuum conditions of 10-5 Torr and 125°C for a period of 24 hours. The coatings were evaluated before and after the test by spectroscopy analysis to determine a possible degradation in the chemical structure. The resulting weight loss not exceeding 0.02%, and the addition of Ti-O-Si particles led to an increase in chemical stability under vacuum conditions without affecting the chemical structure of the highly cross-linked PMMA/Ti-O-Si matrix, which was monitored by FTIR and Raman spectroscopy.https://doi.org/10.1371/journal.pone.0313785 |
| spellingShingle | Bryanda G Reyes-Tesillo Genoveva Hernández-Padrón Jorge A Ferrer-Pérez Alfredo Maciel-Cerda Hybrid coating prepared with PMMA/Ti-O-Si tested under vacuum conditions for use in nanosatellites. PLoS ONE |
| title | Hybrid coating prepared with PMMA/Ti-O-Si tested under vacuum conditions for use in nanosatellites. |
| title_full | Hybrid coating prepared with PMMA/Ti-O-Si tested under vacuum conditions for use in nanosatellites. |
| title_fullStr | Hybrid coating prepared with PMMA/Ti-O-Si tested under vacuum conditions for use in nanosatellites. |
| title_full_unstemmed | Hybrid coating prepared with PMMA/Ti-O-Si tested under vacuum conditions for use in nanosatellites. |
| title_short | Hybrid coating prepared with PMMA/Ti-O-Si tested under vacuum conditions for use in nanosatellites. |
| title_sort | hybrid coating prepared with pmma ti o si tested under vacuum conditions for use in nanosatellites |
| url | https://doi.org/10.1371/journal.pone.0313785 |
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