Development of conductive plastics for fuel cells
This project is aimed at developing highly electrical conductive, thermally stable and mechanically strong thermoplastic polymer composites for micro fuel-cell application. An idea for preparation of electrically-conductive polymeric composites based on polypropylene (PP) has been introduced. Polypr...
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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/10356/20690 |
| _version_ | 1811683521182302208 |
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| author | Chong, Kah Wei. |
| author2 | Li Lin |
| author_facet | Li Lin Chong, Kah Wei. |
| author_sort | Chong, Kah Wei. |
| collection | NTU |
| description | This project is aimed at developing highly electrical conductive, thermally stable and mechanically strong thermoplastic polymer composites for micro fuel-cell application. An idea for preparation of electrically-conductive polymeric composites based on polypropylene (PP) has been introduced. Polypropylene (PP) was mixed in its molten state with multi-walled carbon nanotubes (MWCNTs) which had been non-covalently modified. Two anionic surfactants were used to modify MWCNTs non-covalently. Injection molding process was used for PP/MWCNT composites to form different sample shapes such as tensile bars, square plates, circular plates and etc.
The effects of surfactant-treated MWCNTs on the rheological, physical, morphological, thermal, mechanical, and electrical properties of the PP at different compositions have been systematically examined. By using this non-covalent modification of MWCNTs, a uniform dispersion of MWCNTs in the polymer matrix has been achieved without spoiling the physical properties of MWCNTs. The mechanical properties of PP/MWCNT composites show pretty much higher than those of pure PP. For example, the PP/MWCNT composite with 1% wt loading of surfactant-treated MWCNTs has Young’s modulus which is 5 times higher than that of pure PP. Incorporating with 10% wt loading of surfactant-treated MWCNTs, the electrical conductivity of the composite is 6.7 x 10-2 S/cm which is surprisingly larger than that of pure PP (1 x 10-16 S/cm). |
| first_indexed | 2024-10-01T04:14:03Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/20690 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:14:03Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | ntu-10356/206902023-03-04T18:47:37Z Development of conductive plastics for fuel cells Chong, Kah Wei. Li Lin School of Mechanical and Aerospace Engineering DRNTU::Engineering::Materials::Nanostructured materials This project is aimed at developing highly electrical conductive, thermally stable and mechanically strong thermoplastic polymer composites for micro fuel-cell application. An idea for preparation of electrically-conductive polymeric composites based on polypropylene (PP) has been introduced. Polypropylene (PP) was mixed in its molten state with multi-walled carbon nanotubes (MWCNTs) which had been non-covalently modified. Two anionic surfactants were used to modify MWCNTs non-covalently. Injection molding process was used for PP/MWCNT composites to form different sample shapes such as tensile bars, square plates, circular plates and etc. The effects of surfactant-treated MWCNTs on the rheological, physical, morphological, thermal, mechanical, and electrical properties of the PP at different compositions have been systematically examined. By using this non-covalent modification of MWCNTs, a uniform dispersion of MWCNTs in the polymer matrix has been achieved without spoiling the physical properties of MWCNTs. The mechanical properties of PP/MWCNT composites show pretty much higher than those of pure PP. For example, the PP/MWCNT composite with 1% wt loading of surfactant-treated MWCNTs has Young’s modulus which is 5 times higher than that of pure PP. Incorporating with 10% wt loading of surfactant-treated MWCNTs, the electrical conductivity of the composite is 6.7 x 10-2 S/cm which is surprisingly larger than that of pure PP (1 x 10-16 S/cm). Bachelor of Engineering (Mechanical Engineering) 2009-12-29T03:46:35Z 2009-12-29T03:46:35Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/20690 en Nanyang Technological University 67 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Nanostructured materials Chong, Kah Wei. Development of conductive plastics for fuel cells |
| title | Development of conductive plastics for fuel cells |
| title_full | Development of conductive plastics for fuel cells |
| title_fullStr | Development of conductive plastics for fuel cells |
| title_full_unstemmed | Development of conductive plastics for fuel cells |
| title_short | Development of conductive plastics for fuel cells |
| title_sort | development of conductive plastics for fuel cells |
| topic | DRNTU::Engineering::Materials::Nanostructured materials |
| url | http://hdl.handle.net/10356/20690 |
| work_keys_str_mv | AT chongkahwei developmentofconductiveplasticsforfuelcells |