kenaf bast fibers—part i: hermetical alkali digestion
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ID: 169026
2011
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Abstract
The objective of this study was to develop a hermetical alkali digestion process to obtain single cellulosic fibers from kenaf bast. Kenaf bast were hermetically digested into single fiber using a 5% sodium hydroxide solution for one hour at four different temperatures (80°C, 110°C, 130°C, and 160°C). The hermetical digestion process used in this study produced fibers with high cellulose content (84.2–92.3%) due to the removal of lignin and hemicelluloses. The surface hardness and elastic modulus of the fibers digested at 130°C
and 160°C were improved significantly compared with those digested at 80°C. The tensile modulus and tensile strength of the individual fibers reduced as the digestion temperature increased from
110°C to 160°C. Micropores were generated in fiber cell wall when the fibers were digested at 130°C
and 160°C. The studies on the composites that were made from polypropylene reinforced with the digested fibers indicated that the compatibility between the digested fibers and polypropylene matrix was poor.
| Reference Key |
shi2011internationalkenaf
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|---|---|
| Authors | ;Jinshu Shi;Sheldon Q. Shi;H. Michael Barnes;Mark Horstemeyer;Jinwu Wang;El-Barbary M. Hassan |
| Journal | 19th international congress of chemical and process engineering, chisa 2010 and 7th european congress of chemical engineering, ecce-7 |
| Year | 2011 |
| DOI |
10.1155/2011/212047
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| URL | |
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