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Published in: Cellulose 5/2022

24-01-2022 | Original Research

Stress-transfer analyses in cellulose nanofiber/montmorillonite nanocomposites with X-ray diffraction and chemical interaction between cellulose nanofiber and montmorillonite

Authors: Takuya Matsumoto, Shunichi Mori, Takuya Ohashi, Chenyue He, Takashi Nishino

Published in: Cellulose | Issue 5/2022

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Abstract

Cellulose nanofiber is a promising material because of its eco-friendliness, high mechanical performance, and high functionality. Nanocomposites with cellulose nanofiber matrices and inorganic nanofillers also possess excellent mechanical properties owing to the reinforcement effects of the nanofillers. The mechanical reinforcement effects largely depend on the interfacial interaction between nanofillers and cellulose matrices, and the nanofiller dispersion in nanocomposites. It has been difficult to evaluate the reinforcement effects of loading fillers in nanocomposites, which was desirable for cellulose composites of material design in industrial use. In this study, we used nanocomposites of cellulose nanofibers and montmorillonite with various surface properties. Their mechanical properties were investigated through tensile tests, and the stress transferred to the nanofillers in nanocomposites with 2 × 2 combinations of cellulose nanofibers, and nanofillers were analyzed using X-ray diffraction method. A strong correlation between the Young’s modulus and the stress-transfer coefficients was revealed. Particularly, the composites of TEMPO-oxidized cellulose nanofibers, and ion-exchanged montmorillonite possessed the highest Young’s modulus and the largest stress-transfer coefficients. The large mechanical reinforcement effect of the loaded montmorillonite filler was observed and attributed to the electrostatic interaction of the interface between the cellulose matrix and the montmorillonite filler.

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Appendix
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Metadata
Title
Stress-transfer analyses in cellulose nanofiber/montmorillonite nanocomposites with X-ray diffraction and chemical interaction between cellulose nanofiber and montmorillonite
Authors
Takuya Matsumoto
Shunichi Mori
Takuya Ohashi
Chenyue He
Takashi Nishino
Publication date
24-01-2022
Publisher
Springer Netherlands
Published in
Cellulose / Issue 5/2022
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-022-04423-x