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A Comparison of Cooking Conditions of Rhizoclonium Pulp as a Substitute for Wood Pulp

Polymers, 2022-10, Vol.14 (19), p.4162 [Peer Reviewed Journal]

2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2022 by the authors. 2022 ;ISSN: 2073-4360 ;EISSN: 2073-4360 ;DOI: 10.3390/polym14194162 ;PMID: 36236109

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  • Title:
    A Comparison of Cooking Conditions of Rhizoclonium Pulp as a Substitute for Wood Pulp
  • Author: Hwang, Pai-An ; Wong, Song-Ling ; Liu, Yu-Ching
  • Subjects: Algae ; Aquaculture ; Biomass ; Cellulose ; Configurations ; Cooking ; Hydrogen peroxide ; Lignin ; Lipids ; Mechanical properties ; Papermaking ; Polymerization ; Proteins ; pulp ; Pulp & paper industry ; Rhizoclonium ; Sodium hydroxide ; Sodium sulfite ; Substitutes ; Wood pulp
  • Is Part Of: Polymers, 2022-10, Vol.14 (19), p.4162
  • Description: The green macroalga Rhizoclonium was cooked with 5%, 10%, and 20% sodium hydroxide (NaOH) for 4 h (5-N, 10-N, and 20-N groups, respectively); with 5%, 10%, and 20% sodium sulfite (Na2SO3) for 4 h (5-NS, 10-NS, and 20-NS groups, respectively); and with 5%, 10%, and 20% NaOH for 2 h and 1% hydrogen peroxide (H2O2) for 2 h (5-NH, 10-NH, and 20-NH groups, respectively). The 5-NH handsheet showed the best mechanical properties; however, the 10-NH pulp was easier to separate than 5-NH during handsheet making, and 10-NH was more suitable for the industrial process. Thus, the 10-NH group showed the optimal production conditions with an optimal length/width ratio, crystallinity index (CI%), three-dimensional (3D) configuration, and mechanical strength. Substituting 20% 10-NH Rhizoclonium pulp with wood pulp had no significant effect on the mechanical properties of the 100% wood pulp handsheet. However, the fibers of the NS group were flatter and lost their 3D configuration, resulting in low mechanical strength. Overall, Rhizoclonium had its own optimal cooking condition, which was not the same as for wood pulp, and it has potential as a substitute for wood pulp in papermaking.
  • Publisher: Basel: MDPI AG
  • Language: English
  • Identifier: ISSN: 2073-4360
    EISSN: 2073-4360
    DOI: 10.3390/polym14194162
    PMID: 36236109
  • Source: Geneva Foundation Free Medical Journals at publisher websites
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    PubMed Central
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    ROAD: Directory of Open Access Scholarly Resources
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