Characterisation of phthalonitrile blends to achieve high char yield for 3D printing
The feasibility of incorporating phthalonitrile moieties, in the form of phthalonitrile (PN) blends, into acrylate photocurable resins was investigated. Various synthesized PN blends were characterised by Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) pre and post...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/150233 |
| _version_ | 1811680358618365952 |
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| author | Maisarah Latif |
| author2 | Hu Xiao |
| author_facet | Hu Xiao Maisarah Latif |
| author_sort | Maisarah Latif |
| collection | NTU |
| description | The feasibility of incorporating phthalonitrile moieties, in the form of phthalonitrile
(PN) blends, into acrylate photocurable resins was investigated. Various synthesized
PN blends were characterised by Differential Scanning Calorimetry (DSC) and
Thermogravimetric Analysis (TGA) pre and post-photocuring using a UV oven. The
thermal stability and structural integrity of these blends were studied based on their
melting and decomposition temperatures. The solubility of these various blends was
tested to identify the most soluble blend in the acrylate photocurable resins which
depends on the melting temperature of the various blends. Carbonization or pyrolysis
was done through TGA where the intrinsic char yield of phthalonitrile blends depends
on the decomposition temperature of the various blends. The study of these various
blends aims to combine carbonization and photocurable resins in Digital Light
Processing photopolymerization as to 3D print functional carbon structures that can be
used in advanced high-performance engineering applications. Based on the results, 2-
hydroxyethyl methacrylate (HEMA) PN proved the feasibility to be possible where
reasonable melting point and decomposition temperature can also be achieved.
However, results are insufficient for HEMA PN to be made reliable as a high performance thermoset. Limitations include the lack of understanding of curing
kinetics of PN blends. A more systematic study of curing kinetics can be explored
through further characterisation by Fourier Transform Infrared (FTIR), Atomic Force
Microscope (AFM), and Scanning Electron Microscope (SEM), as recommended for
future works. |
| first_indexed | 2024-10-01T03:23:47Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/150233 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:23:47Z |
| publishDate | 2021 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1502332021-06-13T06:29:29Z Characterisation of phthalonitrile blends to achieve high char yield for 3D printing Maisarah Latif Hu Xiao School of Materials Science and Engineering ASXHU@ntu.edu.sg Engineering::Materials The feasibility of incorporating phthalonitrile moieties, in the form of phthalonitrile (PN) blends, into acrylate photocurable resins was investigated. Various synthesized PN blends were characterised by Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA) pre and post-photocuring using a UV oven. The thermal stability and structural integrity of these blends were studied based on their melting and decomposition temperatures. The solubility of these various blends was tested to identify the most soluble blend in the acrylate photocurable resins which depends on the melting temperature of the various blends. Carbonization or pyrolysis was done through TGA where the intrinsic char yield of phthalonitrile blends depends on the decomposition temperature of the various blends. The study of these various blends aims to combine carbonization and photocurable resins in Digital Light Processing photopolymerization as to 3D print functional carbon structures that can be used in advanced high-performance engineering applications. Based on the results, 2- hydroxyethyl methacrylate (HEMA) PN proved the feasibility to be possible where reasonable melting point and decomposition temperature can also be achieved. However, results are insufficient for HEMA PN to be made reliable as a high performance thermoset. Limitations include the lack of understanding of curing kinetics of PN blends. A more systematic study of curing kinetics can be explored through further characterisation by Fourier Transform Infrared (FTIR), Atomic Force Microscope (AFM), and Scanning Electron Microscope (SEM), as recommended for future works. Bachelor of Engineering (Materials Engineering) 2021-06-13T06:29:29Z 2021-06-13T06:29:29Z 2021 Final Year Project (FYP) Maisarah Latif (2021). Characterisation of phthalonitrile blends to achieve high char yield for 3D printing. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/150233 https://hdl.handle.net/10356/150233 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Materials Maisarah Latif Characterisation of phthalonitrile blends to achieve high char yield for 3D printing |
| title | Characterisation of phthalonitrile blends to achieve high char yield for 3D printing |
| title_full | Characterisation of phthalonitrile blends to achieve high char yield for 3D printing |
| title_fullStr | Characterisation of phthalonitrile blends to achieve high char yield for 3D printing |
| title_full_unstemmed | Characterisation of phthalonitrile blends to achieve high char yield for 3D printing |
| title_short | Characterisation of phthalonitrile blends to achieve high char yield for 3D printing |
| title_sort | characterisation of phthalonitrile blends to achieve high char yield for 3d printing |
| topic | Engineering::Materials |
| url | https://hdl.handle.net/10356/150233 |
| work_keys_str_mv | AT maisarahlatif characterisationofphthalonitrileblendstoachievehighcharyieldfor3dprinting |