Annealing and saponification of electrospun cellulose-acetate nanofibers used as reinforcement materials for composites

Shunya Inukai, Naruki Kurokawa, Atsushi Hotta

研究成果: Article査読

11 被引用数 (Scopus)

抄録

To enhance the mechanical properties of regenerated cellulose nanofibers (RC-NF), the annealing and the saponification of electrospun cellulose-acetate nanofibers (CA-NF) have been investigated. It was found that, by increasing the annealing time of CA-NF at 50 °C from 0 to 12 h, the crystallinity of RC-NF increased from 37% to 41%, which became constant after 12 h. By applying the theory proposed by Tsai, the Young's modulus of RC-NF was found to increase from 9.0 to 28.0 GPa by increasing the annealing time from 0 to 12 h, which also became constant after 12 h. The optimized annealing time for the maximum crystallinity and Young's modulus became shorter by increasing the annealing temperature, indicating that the crystallinity and the Young's modulus of RC-NF were strongly correlated. Eventually, the Young's modulus of RC-NF/PVA increased from 2.1 to 3.0 GPa at the maximum, while that of pure PVA was 1.5 GPa.

本文言語English
ページ(範囲)158-165
ページ数8
ジャーナルComposites Part A: Applied Science and Manufacturing
113
DOI
出版ステータスPublished - 2018 10

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料力学

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