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The Properties of Phosphorylated Kraft Fibers

Bioresources, 2015-08, Vol.10 (3), p.4375-4390 [Peer Reviewed Journal]

ISSN: 1930-2126 ;EISSN: 1930-2126 ;DOI: 10.15376/biores.10.3.4375-4390

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  • Title:
    The Properties of Phosphorylated Kraft Fibers
  • Author: Shi, Ying ; Belosinschi, Dan ; Brouillette, François ; Belfkira, Ahmed ; Chabot, Bruno
  • Subjects: Charge density ; Flame retardancy ; Kraft fibers ; Phosphorylation ; Swelling
  • Is Part Of: Bioresources, 2015-08, Vol.10 (3), p.4375-4390
  • Description: The properties of phosphorylated kraft fibers, including their flame retardancy and behavior in water, such as electrical charge and swelling capacity, were investigated in this study. Two different phosphorus contents and three forms of phosphorylated fibers (ammonium, acid, and sodium) were analyzed. All types of phosphorylated fibers exhibited high char formation and limiting oxygen index (LOI) values, indicating good flame retardancy. In particular, the ammonium form exhibited the best flame retardancy behavior and the highest LOI value. The charge density and swelling capacity of the kraft fibers were significantly increased by phosphorylation. Alkaline treatment following the phosphorylation reaction further increased the water retention value (WRV) and surface charge of the kraft fibers. Compared to unmodified kraft fibers, the phosphorylated fibers had lower absolute values of the negative zeta potentials, and these values were less affected by conductivity.
  • Publisher: North Carolina State University
  • Language: English
  • Identifier: ISSN: 1930-2126
    EISSN: 1930-2126
    DOI: 10.15376/biores.10.3.4375-4390
  • Source: GFMER Free Medical Journals
    ROAD: Directory of Open Access Scholarly Resources
    DOAJ Directory of Open Access Journals
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