The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis
The potential of using cellulose to reinforce the thermal stability of kenaf derived cellulose (KDC)/polylactic acid (PLA) composite was investigated in this study. The cellulose was derived from kenaf bast fibre which was chemically treated via chlorination and mercerisation processes. The composit...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
2011
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/23208/1/The%20influence%20of%20mercerised%20kenaf%20fibres%20reinforced%20polylactic%20acid%20.pdf |
| _version_ | 1796970313730228224 |
|---|---|
| author | A. Talib, Rosnita Abdan, Khalina Mohamed Amin Tawakkal, Intan Syafinaz |
| author_facet | A. Talib, Rosnita Abdan, Khalina Mohamed Amin Tawakkal, Intan Syafinaz |
| author_sort | A. Talib, Rosnita |
| collection | UPM |
| description | The potential of using cellulose to reinforce the thermal stability of kenaf derived cellulose (KDC)/polylactic acid (PLA) composite was investigated in this study. The cellulose was derived from kenaf bast fibre which was chemically treated via chlorination and mercerisation processes. The composites with various loadings of cellulose (dry weight basis) ranging from 0% to 60% were produced by melt mixing and compression moulding. Dynamic mechanical properties namely storage modulus (E’), loss modulus (E”) and tan δ of the KDC/PLA composites and the commercial PLA were analysed and compared as a function of temperature. ESEM micrographs demonstrated that the mercerisation of kenaf fibres have successfully removed the lignin and hemicellulose, thus producing cellulose which can be observed by its rougher surface and greater size reduction than the raw fibre. The DMA results demonstrated that the storage modulus of 60% KDC/PLA composite is twice higher than the commercial PLA and the rest of the composites within a high temperature range (above 80°C). The glass transition temperatures (Tg) generated from the loss modulus curves exhibit that the peak of the loss modulus was shifted to higher temperature as the percentage of the cellulose loading was increased. These results show a better thermal stability of the composites when incorporated with the cellulose. |
| first_indexed | 2024-03-06T07:56:12Z |
| format | Article |
| id | upm.eprints-23208 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:56:12Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | upm.eprints-232082016-02-04T07:55:58Z http://psasir.upm.edu.my/id/eprint/23208/ The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis A. Talib, Rosnita Abdan, Khalina Mohamed Amin Tawakkal, Intan Syafinaz The potential of using cellulose to reinforce the thermal stability of kenaf derived cellulose (KDC)/polylactic acid (PLA) composite was investigated in this study. The cellulose was derived from kenaf bast fibre which was chemically treated via chlorination and mercerisation processes. The composites with various loadings of cellulose (dry weight basis) ranging from 0% to 60% were produced by melt mixing and compression moulding. Dynamic mechanical properties namely storage modulus (E’), loss modulus (E”) and tan δ of the KDC/PLA composites and the commercial PLA were analysed and compared as a function of temperature. ESEM micrographs demonstrated that the mercerisation of kenaf fibres have successfully removed the lignin and hemicellulose, thus producing cellulose which can be observed by its rougher surface and greater size reduction than the raw fibre. The DMA results demonstrated that the storage modulus of 60% KDC/PLA composite is twice higher than the commercial PLA and the rest of the composites within a high temperature range (above 80°C). The glass transition temperatures (Tg) generated from the loss modulus curves exhibit that the peak of the loss modulus was shifted to higher temperature as the percentage of the cellulose loading was increased. These results show a better thermal stability of the composites when incorporated with the cellulose. 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23208/1/The%20influence%20of%20mercerised%20kenaf%20fibres%20reinforced%20polylactic%20acid%20.pdf A. Talib, Rosnita and Abdan, Khalina and Mohamed Amin Tawakkal, Intan Syafinaz (2011) The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis. Key Engineering Materials, 471-472 (2). pp. 815-820. ISSN 1013-9826 http://dx.doi.org/10.4028/www.scientific.net/KEM.471-472.815 10.4028/www.scientific.net/KEM.471-472.815 |
| spellingShingle | A. Talib, Rosnita Abdan, Khalina Mohamed Amin Tawakkal, Intan Syafinaz The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis |
| title | The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis |
| title_full | The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis |
| title_fullStr | The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis |
| title_full_unstemmed | The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis |
| title_short | The influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis |
| title_sort | influence of mercerised kenaf fibres reinforced polylactic acid composites on dynamic mechanical analysis |
| url | http://psasir.upm.edu.my/id/eprint/23208/1/The%20influence%20of%20mercerised%20kenaf%20fibres%20reinforced%20polylactic%20acid%20.pdf |
| work_keys_str_mv | AT atalibrosnita theinfluenceofmercerisedkenaffibresreinforcedpolylacticacidcompositesondynamicmechanicalanalysis AT abdankhalina theinfluenceofmercerisedkenaffibresreinforcedpolylacticacidcompositesondynamicmechanicalanalysis AT mohamedamintawakkalintansyafinaz theinfluenceofmercerisedkenaffibresreinforcedpolylacticacidcompositesondynamicmechanicalanalysis AT atalibrosnita influenceofmercerisedkenaffibresreinforcedpolylacticacidcompositesondynamicmechanicalanalysis AT abdankhalina influenceofmercerisedkenaffibresreinforcedpolylacticacidcompositesondynamicmechanicalanalysis AT mohamedamintawakkalintansyafinaz influenceofmercerisedkenaffibresreinforcedpolylacticacidcompositesondynamicmechanicalanalysis |