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Isolation of lignocellulose nanofiber from recycled old corrugated container and its interaction with cationic starch–nanosilica combination to make paperboard

Cellulose (London), 2019-08, Vol.26 (12), p.7207-7221 [Peer Reviewed Journal]

Springer Nature B.V. 2019 ;Cellulose is a copyright of Springer, (2019). All Rights Reserved. ;ISSN: 0969-0239 ;EISSN: 1572-882X ;DOI: 10.1007/s10570-019-02562-2

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  • Title:
    Isolation of lignocellulose nanofiber from recycled old corrugated container and its interaction with cationic starch–nanosilica combination to make paperboard
  • Author: Yousefhashemi, Seyed Mehdi ; Khosravani, Amir ; Yousefi, Hossein
  • Subjects: Bioorganic Chemistry ; Bleaching ; Cations ; Cellulose ; Cellulose fibers ; Ceramics ; Chemical composition ; Chemistry ; Chemistry and Materials Science ; Composites ; Containers ; Crystallites ; Dewatering ; Fine grinding ; Glass ; Lignocellulose ; Mechanical properties ; Nanofibers ; Natural Materials ; Organic Chemistry ; Original Research ; Paper board ; Physical Chemistry ; Polymer Sciences ; Reduction ; Sustainable Development
  • Is Part Of: Cellulose (London), 2019-08, Vol.26 (12), p.7207-7221
  • Description: In recent years, many studies have been carried out on the use of cellulose nanofiber (CNF) produced from virgin fiber as a strengthening agent for improving the physical and mechanical properties of paper, while the use of CNF isolated from bleached virgin fiber is not necessary or reasonable for many recycled/impure products. In this due, novel lignocellulose nanofiber (LCNF) was produced from inexpensive recycled old corrugated container pulp by the ultra-fine grinding technique. The diameter of the resulted LCNF was in the range of 10–80 nm, while the cellulose crystallinity index and crystallite size reduced during the process to 49% and 4 nm, respectively. Regarding the chemical composition of LCNF, no significant change was observed in comparison to OCC fiber. But, an obstacle for the application of nanofibers, especially for paperboards, is dewatering problem. Accordingly, it was tried to evaluate the potential of cationic starch–anionic nanosilica combination as a drainage/retention aid to compensate for the negative effects of applying nanofibers in the pulp suspension, meanwhile the combination enhances the gains of LCNF application. The evaluation of pulp freeness showed that the addition of 3% nanofibers reduced dewatering ability about 100 ml CSF (around 33% loss). But, interaction of the nanosilica–starch system with the furnish containing LCNF not only compensated for the freeness reduction, but also caused a 32% or 57% increase in tensile index, in comparison to sample containing LCNF or control pulp respectively. Moreover, the addition of starch–nanosilica system with LCNF to pulp suspension, improved the retention of fine materials. Also, LCNF caused a reduction in thickness, bulk and bending resistance index of paperboard, while employment of the starch–nanosilica combination somehow off-set these negative effects. In addition, as a result of the cationic starch–anionic nanosilica system, the tear index was improved. Graphic abstract
  • Publisher: Dordrecht: Springer Netherlands
  • Language: English
  • Identifier: ISSN: 0969-0239
    EISSN: 1572-882X
    DOI: 10.1007/s10570-019-02562-2
  • Source: ProQuest Central
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