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Erschienen in: Cellulose 1/2013

01.02.2013 | Original Paper

The transparency and mechanical properties of cellulose acetate nanocomposites using cellulose nanowhiskers as fillers

verfasst von: Zhen-Yu Yang, Wen-Jun Wang, Zi-Qiang Shao, Hai-Dong Zhu, Yong-Hong Li, Fei-Jun Wang

Erschienen in: Cellulose | Ausgabe 1/2013

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Abstract

Cellulose nanowhiskers (CNWs) were chemically modified by acetylating to obtain acetylated cellulose nanowhiskers (ACNWs) which could be well dispersed in acetone. The chemical modification was limited only on the surface of CNWs which was confirmed by transmission electron microscopy (TEM) and X-ray diffraction (XRD). Surface substitution degree of ACNWs was evaluated to be 0.45 through X-ray photoelectron spectroscopy (XPS). Fully bioresource-based nanocomposite films were manufactured by incorporation of ACNWs into cellulose acetate (CA) using a casting/evaporation technique. Scanning electron microscope (SEM) demonstrated that ACNWs dispersed well in the CA matrix, which resulted in high transparency of all CA nanocomposites. The tensile strength, Young’s modulus and strain at break of all CA nanocomposites exhibited simultaneous increase in comparison with neat CA matrix. At the content of 4.5 wt% ACNWs, the tensile strength, Young’s modulus and strain at break of the CA nanocomposite film were increased by 9, 39, and 44 % respectively.

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Metadaten
Titel
The transparency and mechanical properties of cellulose acetate nanocomposites using cellulose nanowhiskers as fillers
verfasst von
Zhen-Yu Yang
Wen-Jun Wang
Zi-Qiang Shao
Hai-Dong Zhu
Yong-Hong Li
Fei-Jun Wang
Publikationsdatum
01.02.2013
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 1/2013
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-012-9796-z

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