Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion
The aim of this study was to develop cellulose nanofiber (CNF) reinforced polylactic acid (PLA) by twin screw extrusion. Nanocomposites were prepared by premixing a master batch with high concentration of CNFs in PLA and diluting to final concentrations (1, 3, 5 wt.%) during the extrusion. Morpholog...
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my.upm.eprints.400092015-08-26T04:32:16Z http://psasir.upm.edu.my/id/eprint/40009/ Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion Jonoobi, Mehdi Harun, Jalaluddin Mathew, Aji P. Oksman, Kristiina The aim of this study was to develop cellulose nanofiber (CNF) reinforced polylactic acid (PLA) by twin screw extrusion. Nanocomposites were prepared by premixing a master batch with high concentration of CNFs in PLA and diluting to final concentrations (1, 3, 5 wt.%) during the extrusion. Morphology, mechanical and dynamic mechanical properties (DMA) were studied theoretically and experimentally to see how different CNF concentrations affected the composites’ properties. The tensile modulus and strength increased from 2.9 GPa to 3.6 GPa and from 58 MPa to 71 MPa, respectively, for nanocomposites with 5 wt.% CNF. The DMA results were also positive; the storage modulus increased for all nanocomposites compared to PLA; being more significant in the high temperature region (70 °C). The addition of nanofibers shifted the tan delta peak towards higher temperatures. The tan delta peak of the PLA shifted from 70 °C to 76 °C for composites with 5 wt.% CNF. Elsevier 2010-10 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/40009/1/Mechanical%20properties%20of%20cellulose%20nanofiber%20%28CNF%29%20reinforced%20polylactic%20acid%20%28PLA%29%20prepared%20by%20twin%20screw%20extrusion.pdf Jonoobi, Mehdi and Harun, Jalaluddin and Mathew, Aji P. and Oksman, Kristiina (2010) Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion. Composites Science and Technology, 70 (12). pp. 1742-1747. ISSN 0266-3538; ESSN: 1879-1050 10.1016/j.compscitech.2010.07.005 |
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The aim of this study was to develop cellulose nanofiber (CNF) reinforced polylactic acid (PLA) by twin screw extrusion. Nanocomposites were prepared by premixing a master batch with high concentration of CNFs in PLA and diluting to final concentrations (1, 3, 5 wt.%) during the extrusion. Morphology, mechanical and dynamic mechanical properties (DMA) were studied theoretically and experimentally to see how different CNF concentrations affected the composites’ properties. The tensile modulus and strength increased from 2.9 GPa to 3.6 GPa and from 58 MPa to 71 MPa, respectively, for nanocomposites with 5 wt.% CNF. The DMA results were also positive; the storage modulus increased for all nanocomposites compared to PLA; being more significant in the high temperature region (70 °C). The addition of nanofibers shifted the tan delta peak towards higher temperatures. The tan delta peak of the PLA shifted from 70 °C to 76 °C for composites with 5 wt.% CNF. |
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Jonoobi, Mehdi Harun, Jalaluddin Mathew, Aji P. Oksman, Kristiina |
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Jonoobi, Mehdi Harun, Jalaluddin Mathew, Aji P. Oksman, Kristiina Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion |
author_facet |
Jonoobi, Mehdi Harun, Jalaluddin Mathew, Aji P. Oksman, Kristiina |
author_sort |
Jonoobi, Mehdi |
title |
Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion |
title_short |
Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion |
title_full |
Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion |
title_fullStr |
Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion |
title_full_unstemmed |
Mechanical properties of cellulose nanofiber (CNF) reinforced polylactic acid (PLA) prepared by twin screw extrusion |
title_sort |
mechanical properties of cellulose nanofiber (cnf) reinforced polylactic acid (pla) prepared by twin screw extrusion |
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Elsevier |
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2010 |
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http://psasir.upm.edu.my/id/eprint/40009/1/Mechanical%20properties%20of%20cellulose%20nanofiber%20%28CNF%29%20reinforced%20polylactic%20acid%20%28PLA%29%20prepared%20by%20twin%20screw%20extrusion.pdf http://psasir.upm.edu.my/id/eprint/40009/ |
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