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Details van artikel 15 van 17 gevonden artikelen
| Titel: |
Strength enhancement of fiber network by carboxymethyl cellulose during oxygen delignification of kraft pulp |
| Auteur: |
Eero Kontturi Mia Mitikka-Eklund Tapani Vuorinen |
| Verschenen in: |
BioResources |
| Paginering: | Jaargang 3 (2008) nr. 1 pagina's 34-45 |
| Jaar: |
2008 |
| Inhoud: |
Sorption of carboxymethyl cellulose (CMC) on the fiber surface was applied during oxygen delignification to enhance the strength properties of softwood kraft pulp. Unlike many previous efforts, the focus was not set on the improvement of selectivity of oxygen delignification, i.e. retaining stable viscosity vs. decreasing kappa number. Instead, without an improved selectivity, handsheets from CMC-treated fibers exhibited a 15% improvement in tensile index and 25% improvement in tear index after a full bleaching sequence in comparison to the untreated reference pulp. Since it is demonstrated that the CMC addition can be incorporated as an integral step in the fiberline process, the method offers an effortless and viable option to produce pulp resulting in stronger paper products. |
| Uitgever: |
College of Natural Resources, North Carolina State University |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 15 van 17 gevonden artikelen
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