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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mtibe, A. Linganiso, Linda Z. Mathew, Aji P. Oksman, K. John, Maya J. Anandjiwala, Rajesh D. |
| Description | Author Affiliation: Mtibe A ( CSIR Materials Science and Manufacturing, Polymers and Composites Competence Area, Nonwovens and Composites Research Group, PO Box 1124, 4 Gomery Avenue, Summerstrand, Port Elizabeth 6000, South Africa); Linganiso LZ ( CSIR Materials Science and Manufacturing, Polymers and Composites Competence Area, Nonwovens and Composites Research Group, PO Box 1124, 4 Gomery Avenue, Summerstrand, Port Elizabeth 6000, South Africa. Electronic address: LLinganiso@csir.co.za.); Mathew AP ( Division of Manufacturing and Design of Wood and Bionanocomposites, Luleå University of Technology, SE-97187 Luleå, Sweden.); Oksman K ( Division of Manufacturing and Design of Wood and Bionanocomposites, Luleå University of Technology, SE-97187 Luleå, Sweden.); John MJ ( CSIR Materials Science and Manufacturing, Polymers and Composites Competence Area, Nonwovens and Composites Research Group, PO Box 1124, 4 Gomery Avenue, Summerstrand, Port Elizabeth 6000, South Africa); Anandjiwala RD ( CSIR Materials Science and Manufacturing, Polymers and Composites Competence Area, Nonwovens and Composites Research Group, PO Box 1124, 4 Gomery Avenue, Summerstrand, Port Elizabeth 6000, South Africa) |
| Abstract | Cellulose nanocrystals (CNCs) and cellulose nanofibres (CNFs) were successfully extracted from cellulose obtained from maize stalk residues. A variety of techniques, such as Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) were used for characterization and the experimental results showed that lignin and hemicellulose were removed to a greater extent by following the chemical methods. Atomic force microscopy (AFM) results confirmed that the diameters of CNCs and CNFs were ranging from 3 to 7 nm and 4 to 10nm, respectively, with their lengths in micro scale. CNCs suspension showed a flow of birefringence, however, the same was not observed in the case of suspension containing CNFs. XRD analysis confirmed that CNCs had high crystallinity index in comparison to cellulose and CNFs. Nanopapers were prepared from CNCs and CNFs by solvent evaporation method. Micropapers were also prepared from cellulose pulp by the same technique. Nanopapers made from CNFs showed less transparency as compared to nanopapers produced from CNCs whereas high transparency as compared to micropaper. Nanopapers produced from CNFs provided superior mechanical properties as compared to both micropaper and nanopapers produced from CNCs. Also, nanopapers produced from CNFs were thermally more stable as compared to nanopapers produced from CNCs but thermally less stable as compared to micropapers. |
| File Format | HTM / HTML |
| ISSN | 01448617 |
| Volume Number | 118 |
| e-ISSN | 18791344 |
| Journal | Carbohydrate Polymers |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-03-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biochemistry__semicolon__materials Discipline Science Cellulose Chemistry Nanofibers Nanoparticles Ultrastructure Microscopy, Atomic Force Microscopy, Electron, Scanning Spectroscopy, Fourier Transform Infrared X-ray Diffraction Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Polymers and Plastics |
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