Properties of natural rubber reinforced with cellulose nanofibers based on fiber diameter distribution as estimated by differential centrifugal sedimentation

Properties of natural rubber reinforced with cellulose nanofibers based on fiber diameter distribution as estimated by differential centrifugal sedimentation

Cellulose nanofibers (CNFs) with different degrees of fibrillation are prepared by the mechanical fibrillation of kraft pulp using wet disk milling, and dispersions of the prepared CNFs were subjected to differential centrifugal sedimentation (DCS) in order to estimate the diameter distributions of...

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Veröffentlicht in:International journal of biological macromolecules 2019-01, Vol.121, p.989-995
Hauptverfasser: Kumagai, Akio, Tajima, Naoko, Iwamoto, Shinichiro, Morimoto, Takahiro, Nagatani, Asahiro, Okazaki, Toshiya, Endo, Takashi
Format: Artikel
Sprache:eng
Schlagworte:
Cellulose - chemistry
Cellulose nanofibers
Centrifugation
Differential centrifugal sedimentation
Fiber diameter distribution
Hybrid composites
Mechanical Phenomena
Mechanical properties
Nanofibers - chemistry
Natural rubber
Rubber - chemistry
Surface Properties
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Zusammenfassung:Cellulose nanofibers (CNFs) with different degrees of fibrillation are prepared by the mechanical fibrillation of kraft pulp using wet disk milling, and dispersions of the prepared CNFs were subjected to differential centrifugal sedimentation (DCS) in order to estimate the diameter distributions of the CNFs. The low-fibrillated CNFs (fiber diameter (d): >10 μm) had a weak reinforcing effect on natural rubber (NR), while the medium-fibrillated CNFs (d: 0.1–10 μm) dramatically improve the initial modulus and decrease the elongation at break. The high-fibrillated CNFs (d:
ISSN:0141-8130
1879-0003
DOI:10.1016/j.ijbiomac.2018.10.090