Titania-based polymeric sol for enhanced robustness in self-cleaning surfaces.
Robust self-cleaning glass in this project is achieved by coating a titania-based polymeric sol on the glass surface and subsequently calcined at 500oC. A thin solid transparent film with good robustness 5B (based on ASTM 339D Elcometer scratch test) was acquired. The robust coating was achieved by...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2009
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| Online Access: | http://hdl.handle.net/10356/16471 |
| _version_ | 1826111966880464896 |
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| author | Chan, Bao Li. |
| author2 | Tan Thatt Yang Timothy |
| author_facet | Tan Thatt Yang Timothy Chan, Bao Li. |
| author_sort | Chan, Bao Li. |
| collection | NTU |
| description | Robust self-cleaning glass in this project is achieved by coating a titania-based polymeric sol on the glass surface and subsequently calcined at 500oC. A thin solid transparent film with good robustness 5B (based on ASTM 339D Elcometer scratch test) was acquired. The robust coating was achieved by using two organic modifiers, namely acetyl acetone and 3-glyciodoxypropyl-trimethoxysilane (GPTMS). Results show that addition of acetyl acetone to the polymeric sol aided in achieving superhydrophilicity but affected the robustness of coating; while addition of GPTMS helped to enhance robustness but compromised photocatalytic activity. Based on experimental results, an optimal ratio of 1.5 mole ratio for GPTMS with respect to 200 moles of titania and 80 mole ratio of acetyl acetone with respect to 1 mole of Imidazole were obtained for optimal combination of photocatalytic activity, hydrophilicity, coating robustness and coating transparency. |
| first_indexed | 2024-10-01T02:59:11Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/16471 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:59:11Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/164712023-03-03T15:32:45Z Titania-based polymeric sol for enhanced robustness in self-cleaning surfaces. Chan, Bao Li. Tan Thatt Yang Timothy School of Chemical and Biomedical Engineering DRNTU::Engineering::Chemical engineering::Biotechnological production Robust self-cleaning glass in this project is achieved by coating a titania-based polymeric sol on the glass surface and subsequently calcined at 500oC. A thin solid transparent film with good robustness 5B (based on ASTM 339D Elcometer scratch test) was acquired. The robust coating was achieved by using two organic modifiers, namely acetyl acetone and 3-glyciodoxypropyl-trimethoxysilane (GPTMS). Results show that addition of acetyl acetone to the polymeric sol aided in achieving superhydrophilicity but affected the robustness of coating; while addition of GPTMS helped to enhance robustness but compromised photocatalytic activity. Based on experimental results, an optimal ratio of 1.5 mole ratio for GPTMS with respect to 200 moles of titania and 80 mole ratio of acetyl acetone with respect to 1 mole of Imidazole were obtained for optimal combination of photocatalytic activity, hydrophilicity, coating robustness and coating transparency. Bachelor of Engineering (Chemical and Biomolecular Engineering) 2009-05-26T07:07:45Z 2009-05-26T07:07:45Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/16471 en Nanyang Technological University 62 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Chemical engineering::Biotechnological production Chan, Bao Li. Titania-based polymeric sol for enhanced robustness in self-cleaning surfaces. |
| title | Titania-based polymeric sol for enhanced robustness in self-cleaning surfaces. |
| title_full | Titania-based polymeric sol for enhanced robustness in self-cleaning surfaces. |
| title_fullStr | Titania-based polymeric sol for enhanced robustness in self-cleaning surfaces. |
| title_full_unstemmed | Titania-based polymeric sol for enhanced robustness in self-cleaning surfaces. |
| title_short | Titania-based polymeric sol for enhanced robustness in self-cleaning surfaces. |
| title_sort | titania based polymeric sol for enhanced robustness in self cleaning surfaces |
| topic | DRNTU::Engineering::Chemical engineering::Biotechnological production |
| url | http://hdl.handle.net/10356/16471 |
| work_keys_str_mv | AT chanbaoli titaniabasedpolymericsolforenhancedrobustnessinselfcleaningsurfaces |