ID | 115500 |
Author |
Nakagaito, Antonio Norio
Kyoto University
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Yano, H.
Kyoto University
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Content Type |
Journal Article
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Description | Fibrillated kraft pulp impregnated with phenolic resin was compressed under an extremely high pressure of 100MPa to produce high strength cellulose nanocomposites. To evaluate how the degree of fibrillation of pulp fiber affects the mechanical properties of the final composites, kraft pulp subjected to various levels of refining and high pressure homogenization treatments was used as raw material with different phenolic resin contents. It was found that fibrillation solely of the surface of the fibers is not effective in improving composite strength, though there is a distinct point in the fibrillation stage at which an abrupt increase in the mechanical properties of composites occurs. In the range between 16 and 30 passes through refiner treatments, pulp fibers underwent a degree of fibrillation that resulted in a stepwise increment of mechanical properties, most strikingly in bending strength, which increase was attributed to the complete fibrillation of the bulk of the fibers. For additional high pressure homogenization-treated pulps, composite strength increased linearly against water retention values, which characterize the cellulose’s exposed surface area, and reached maximum value at 14 passes through the homogenizer.
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Journal Title |
Applied Physics A: Materials Science & Processing
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ISSN | 09478396
14320630
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NCID | AA11038055
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Publisher | Springer Nature
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Volume | 78
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Issue | 4
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Start Page | 547
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End Page | 552
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Published Date | 2003-12-19
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Remark | This is a post-peer-review, pre-copyedit version of an article published in Applied Physics A: Materials Science & Processing. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00339-003-2453-5.
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DOI (Published Version) | |
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language |
eng
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TextVersion |
Author
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departments |
Science and Technology
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