Evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices
Over the years, polymers devices with sol-gel coatings has increase it popularity as it is economical, ability to mass produce easily and due to its ability to replicate similar surface properties of glass. This project is to evaluate the stability of the sol-gel coatings under different hydrolytic...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
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2014
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| Online Access: | http://hdl.handle.net/10356/60371 |
| _version_ | 1811679938442428416 |
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| author | Lim, Xin Wei |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Lim, Xin Wei |
| author_sort | Lim, Xin Wei |
| collection | NTU |
| description | Over the years, polymers devices with sol-gel coatings has increase it popularity as it is economical, ability to mass produce easily and due to its ability to replicate similar surface properties of glass. This project is to evaluate the stability of the sol-gel coatings under different hydrolytic conditions. Poly(methyl methacrylate), cyclic olefin copolymer and polycarbonate substrates are coated with hydrophobic and hydrophilic coating respectively. The sol-gel coatings are evaluated under different conditions and factors, such as hydrolytic aging, different withdrawal rates and solution aging. The experiment shows that hydrophobic coating is more durable compared to hydrophilic coating under hydrolytic aging. In addition, the withdrawal rates also affect the water contact angle of the coating as increased withdrawal rates lower the water contact angle of hydrophilic coatings. Lastly, better coatings can be achieved by increasing the aging duration of solution. |
| first_indexed | 2024-10-01T03:17:06Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/60371 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:17:06Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/603712023-03-04T18:18:22Z Evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices Lim, Xin Wei School of Mechanical and Aerospace Engineering A*STAR Singapore Institute of Manufacturing Technology Zhang Yilei DRNTU::Engineering::Mechanical engineering Over the years, polymers devices with sol-gel coatings has increase it popularity as it is economical, ability to mass produce easily and due to its ability to replicate similar surface properties of glass. This project is to evaluate the stability of the sol-gel coatings under different hydrolytic conditions. Poly(methyl methacrylate), cyclic olefin copolymer and polycarbonate substrates are coated with hydrophobic and hydrophilic coating respectively. The sol-gel coatings are evaluated under different conditions and factors, such as hydrolytic aging, different withdrawal rates and solution aging. The experiment shows that hydrophobic coating is more durable compared to hydrophilic coating under hydrolytic aging. In addition, the withdrawal rates also affect the water contact angle of the coating as increased withdrawal rates lower the water contact angle of hydrophilic coatings. Lastly, better coatings can be achieved by increasing the aging duration of solution. Bachelor of Engineering (Mechanical Engineering) 2014-05-27T02:30:49Z 2014-05-27T02:30:49Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60371 en Nanyang Technological University 91 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering Lim, Xin Wei Evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices |
| title | Evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices |
| title_full | Evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices |
| title_fullStr | Evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices |
| title_full_unstemmed | Evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices |
| title_short | Evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices |
| title_sort | evaluation of hydrolytic stability of hydrophobic and hydrophilic coating for microfluidic devices |
| topic | DRNTU::Engineering::Mechanical engineering |
| url | http://hdl.handle.net/10356/60371 |
| work_keys_str_mv | AT limxinwei evaluationofhydrolyticstabilityofhydrophobicandhydrophiliccoatingformicrofluidicdevices |