Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites
In present research polylactic acid (PLA) biocomposites were prepared from PLA and kenaf fiber using dry blending, twin screw extrusion and compression molding techniques. PLA was blended with kenaf core fiber, polyethylene glycol (PEG) and ammonium polyphosphate (APP). Kenaf fiber was treated with...
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my.upm.eprints.372012016-01-26T04:05:44Z http://psasir.upm.edu.my/id/eprint/37201/ Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites Shukor, Faseha Hassan, Azman Islam, Md. Saiful Mokhtar, Munirah Hasan, Mahbub In present research polylactic acid (PLA) biocomposites were prepared from PLA and kenaf fiber using dry blending, twin screw extrusion and compression molding techniques. PLA was blended with kenaf core fiber, polyethylene glycol (PEG) and ammonium polyphosphate (APP). Kenaf fiber was treated with 3%, 6% and 9% NaOH solution separately. Both raw and treated kenaf along with 10, 15 and 20 phr APP was utilized during composite preparation. The effects of APP content and alkali treatment on flammability, thermal and mechanical properties of kenaf fiber filled PLA biocomposites were investigated. APP is shown to be very effective in improving flame retardancy properties according to limiting oxygen index measurement due to increased char residue at high temperatures. However addition of APP decreased the compatibility between PLA and kenaf fiber, resulting in significant reduction of the mechanical properties of PLA biocomposites. Thermogravimetric analysis (TGA) showed that NaOH treatment improved the thermal stability of PLA biocomposites and decreased carbonaceous char formation. Elsevier 2014-02 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37201/1/Effect%20of%20ammonium%20polyphosphate%20on%20flame%20retardancy.pdf Shukor, Faseha and Hassan, Azman and Islam, Md. Saiful and Mokhtar, Munirah and Hasan, Mahbub (2014) Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites. Materials and Design, 54. pp. 425-429. ISSN 0261-3069; ESSN: 1873-4197 10.1016/j.matdes.2013.07.095 |
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In present research polylactic acid (PLA) biocomposites were prepared from PLA and kenaf fiber using dry blending, twin screw extrusion and compression molding techniques. PLA was blended with kenaf core fiber, polyethylene glycol (PEG) and ammonium polyphosphate (APP). Kenaf fiber was treated with 3%, 6% and 9% NaOH solution separately. Both raw and treated kenaf along with 10, 15 and 20 phr APP was utilized during composite preparation. The effects of APP content and alkali treatment on flammability, thermal and mechanical properties of kenaf fiber filled PLA biocomposites were investigated. APP is shown to be very effective in improving flame retardancy properties according to limiting oxygen index measurement due to increased char residue at high temperatures. However addition of APP decreased the compatibility between PLA and kenaf fiber, resulting in significant reduction of the mechanical properties of PLA biocomposites. Thermogravimetric analysis (TGA) showed that NaOH treatment improved the thermal stability of PLA biocomposites and decreased carbonaceous char formation. |
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Shukor, Faseha Hassan, Azman Islam, Md. Saiful Mokhtar, Munirah Hasan, Mahbub |
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Shukor, Faseha Hassan, Azman Islam, Md. Saiful Mokhtar, Munirah Hasan, Mahbub Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites |
author_facet |
Shukor, Faseha Hassan, Azman Islam, Md. Saiful Mokhtar, Munirah Hasan, Mahbub |
author_sort |
Shukor, Faseha |
title |
Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites |
title_short |
Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites |
title_full |
Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites |
title_fullStr |
Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites |
title_full_unstemmed |
Effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled PLA biocomposites |
title_sort |
effect of ammonium polyphosphate on flame retardancy, thermal stability and mechanical properties of alkali treated kenaf fiber filled pla biocomposites |
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Elsevier |
publishDate |
2014 |
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http://psasir.upm.edu.my/id/eprint/37201/1/Effect%20of%20ammonium%20polyphosphate%20on%20flame%20retardancy.pdf http://psasir.upm.edu.my/id/eprint/37201/ |
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1643831930115850240 |
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13.188404 |