Fabrication of polymer-derived SiOC/carbon composites using PμSL
SiOC/Carbon (SiOC/C) composites were produced from the polymer-derived ceramic (PDC) route, using a thiol-ene preceramic polymer (3T) as the SiOC source and a commercial photoresin (Figure 4®) as the carbon source. Characterisations were done on the formulated resin, cured polymer and pyrolysed PDCs...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2023
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| Online Access: | https://hdl.handle.net/10356/165793 |
| _version_ | 1826120003331555328 |
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| author | Pek, Shaun Yue Zheng |
| author2 | Hu Xiao |
| author_facet | Hu Xiao Pek, Shaun Yue Zheng |
| author_sort | Pek, Shaun Yue Zheng |
| collection | NTU |
| description | SiOC/Carbon (SiOC/C) composites were produced from the polymer-derived ceramic (PDC) route, using a thiol-ene preceramic polymer (3T) as the SiOC source and a commercial photoresin (Figure 4®) as the carbon source. Characterisations were done on the formulated resin, cured polymer and pyrolysed PDCs to examine the crucial properties needed from each stage of the fabrication process. Photoresin properties such as cure depth and viscosity obeyed the rule of mixtures and indicated suitability for projection micro-stereolithography (PμSL) printing. The chemical and thermal properties were examined using FTIR and TGA respectively, to gain a better understanding of the mechanisms during curing of resin to solid polymer, followed by conversion to PDC. Converted PDCs were imaged using SEM in conjunction with XRD to confirm the formation of the SiOC/C composite. The dielectric measurements on the composite indicated a significant change in electrical properties when Figure 4® was added, with the lowest dielectric constant of εr = 7.4 observed at 20wt% of Figure 4®. Investigation on the post-treatment process using SEM and BET analysis indicated a microporous material with high specific area of 462 m2/g and uniform micropores could be formed by removal free carbon phases in the converted composite, showing good promise in gas filtration or membrane applications. |
| first_indexed | 2024-10-01T05:09:25Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/165793 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:09:25Z |
| publishDate | 2023 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1657932023-05-13T16:45:35Z Fabrication of polymer-derived SiOC/carbon composites using PμSL Pek, Shaun Yue Zheng Hu Xiao School of Materials Science and Engineering ASXHU@ntu.edu.sg Engineering::Materials SiOC/Carbon (SiOC/C) composites were produced from the polymer-derived ceramic (PDC) route, using a thiol-ene preceramic polymer (3T) as the SiOC source and a commercial photoresin (Figure 4®) as the carbon source. Characterisations were done on the formulated resin, cured polymer and pyrolysed PDCs to examine the crucial properties needed from each stage of the fabrication process. Photoresin properties such as cure depth and viscosity obeyed the rule of mixtures and indicated suitability for projection micro-stereolithography (PμSL) printing. The chemical and thermal properties were examined using FTIR and TGA respectively, to gain a better understanding of the mechanisms during curing of resin to solid polymer, followed by conversion to PDC. Converted PDCs were imaged using SEM in conjunction with XRD to confirm the formation of the SiOC/C composite. The dielectric measurements on the composite indicated a significant change in electrical properties when Figure 4® was added, with the lowest dielectric constant of εr = 7.4 observed at 20wt% of Figure 4®. Investigation on the post-treatment process using SEM and BET analysis indicated a microporous material with high specific area of 462 m2/g and uniform micropores could be formed by removal free carbon phases in the converted composite, showing good promise in gas filtration or membrane applications. Bachelor of Engineering (Materials Engineering) 2023-05-08T02:15:59Z 2023-05-08T02:15:59Z 2023 Final Year Project (FYP) Pek, S. Y. Z. (2023). Fabrication of polymer-derived SiOC/carbon composites using PμSL. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/165793 https://hdl.handle.net/10356/165793 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Materials Pek, Shaun Yue Zheng Fabrication of polymer-derived SiOC/carbon composites using PμSL |
| title | Fabrication of polymer-derived SiOC/carbon composites using PμSL |
| title_full | Fabrication of polymer-derived SiOC/carbon composites using PμSL |
| title_fullStr | Fabrication of polymer-derived SiOC/carbon composites using PμSL |
| title_full_unstemmed | Fabrication of polymer-derived SiOC/carbon composites using PμSL |
| title_short | Fabrication of polymer-derived SiOC/carbon composites using PμSL |
| title_sort | fabrication of polymer derived sioc carbon composites using pμsl |
| topic | Engineering::Materials |
| url | https://hdl.handle.net/10356/165793 |
| work_keys_str_mv | AT pekshaunyuezheng fabricationofpolymerderivedsioccarboncompositesusingpmsl |