Mechanical reinforcement of chitosan using unzipped multiwalled carbon nanotube oxides

被引：36

作者：

Fan, Jinchen ^{[1
]}

Shi, Zixing ^{[1
]}

Ge, Yu ^{[1
]}

Wang, Yan ^{[1
]}

Wang, Jialiang ^{[1
]}

Yin, Jie ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, State Key Lab Met Matrix Composite Mat, Shanghai 200240, Peoples R China

来源：

POLYMER | 2012年 / 53卷 / 02期

关键词：

Chitosan; Unzipped multiwalled carbon nanotube oxides; Reinforcement; FUNCTIONALIZATION; COMPOSITES; CHEMISTRY; CHITIN; ACID;

D O I：

10.1016/j.polymer.2011.11.060

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In this paper, unzipped multiwalled carbon nanotube oxides (UMCNOs), obtained by oxidation unzipping multiwalled carbon nanotubes (MWNTs) were used as novel nanofillers for mechanical reinforcement of chitosan (CS) matrix. The UMCNOs/CS nanocomposite films with different amounts of UMCNOs were fabricated by solution-casting the mixtures of UMCNOs and CS acetic acid aqueous dispersions. The structures and mechanical properties of the nanocomposite films were characterized by XRD, FT-IR, SEM, and tensile tests. The results demonstrated that UMCNOs could be homogeneously dispersed throughout the chitosan matrix. Compared to neat chitosan, the UMCNOs/CS nanocomposite films showed similar to 105.9% increase in tensile strength from 69.3 to 142.7 MPa, and similar to 165.3% increase in Young's modulus from 2.6 to 6.9 Gpa with the incorporation of only 0.2 wt% of UMCNOs into the chitosan matrix. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：657 / 664

页数：8

共 67 条

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