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Improvement of physico-mechanical properties of coir-polypropylene biocomposites by fiber chemical treatment
Highlights Coir-polypropylene biocomposites were manufactured using hot press technique. OH groups in raw coir cellulose were converted to OH−Cr groups during treatment. SEM indicates improved interfacial adhesion between coir and PP upon treatment. Chemically treated composites yielded the best set of mechanical properties.
Abstract In preparing polymer–matrix composites, natural fibers are widely used as “reinforcing agents” because of their biodegradable characteristic. In present research, coir fiber reinforced polypropylene biocomposites were manufactured using hot press method. In order to increase the compatibility between the coir fiber and polypropylene matrix, raw coir fiber was chemically treated with basic chromium sulfate and sodium bicarbonate salt in acidic media. Both raw and treated coir at different fiber loading (10, 15 and 20wt%) were utilized during composite manufacturing. During chemical treatment, hydrophilic –OH groups in the raw coir cellulose were converted to hydrophobic –OH−Cr groups. Microstructural analysis and mechanical tests were conducted. Scanning electron microscopic analysis indicates improvement in interfacial adhesion between the coir and polypropylene matrix upon treatment. Chemically treated specimens yielded the best set of mechanical properties. On the basis of fiber loading, 20% fiber reinforced composites had the optimum set of mechanical properties among all composites manufactured.
Improvement of physico-mechanical properties of coir-polypropylene biocomposites by fiber chemical treatment
Highlights Coir-polypropylene biocomposites were manufactured using hot press technique. OH groups in raw coir cellulose were converted to OH−Cr groups during treatment. SEM indicates improved interfacial adhesion between coir and PP upon treatment. Chemically treated composites yielded the best set of mechanical properties.
Abstract In preparing polymer–matrix composites, natural fibers are widely used as “reinforcing agents” because of their biodegradable characteristic. In present research, coir fiber reinforced polypropylene biocomposites were manufactured using hot press method. In order to increase the compatibility between the coir fiber and polypropylene matrix, raw coir fiber was chemically treated with basic chromium sulfate and sodium bicarbonate salt in acidic media. Both raw and treated coir at different fiber loading (10, 15 and 20wt%) were utilized during composite manufacturing. During chemical treatment, hydrophilic –OH groups in the raw coir cellulose were converted to hydrophobic –OH−Cr groups. Microstructural analysis and mechanical tests were conducted. Scanning electron microscopic analysis indicates improvement in interfacial adhesion between the coir and polypropylene matrix upon treatment. Chemically treated specimens yielded the best set of mechanical properties. On the basis of fiber loading, 20% fiber reinforced composites had the optimum set of mechanical properties among all composites manufactured.
Improvement of physico-mechanical properties of coir-polypropylene biocomposites by fiber chemical treatment
Mir, Samia Sultana (author) / Nafsin, Nazia (author) / Hasan, Mahbub (author) / Hasan, Najib (author) / Hassan, Azman (author)
2013-05-18
7 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2013
| British Library Online Contents | 2013
| British Library Online Contents | 2013
| British Library Online Contents | 2013
Physico-mechanical properties of chemically treated coir reinforced polypropylene composites
| British Library Online Contents | 2010