Effects of Size and Surface Modification of Multi-walled Carbon Nanotubes on Mechanical Properties of Polyurethane-based Nanocomposites

Polyurethanes/multi-walled carbon nanotube （PU/CNT） composites were prepared with a help of ultrasonically dispersing CNT in the traditional procedure of synthesizing polyurethane. In this case, the various loading levels, sizes and surface-modified groups were considered to regulate the mechanical...

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Published inJournal of Wuhan University of Technology. Materials science edition Vol. 27; no. 4; pp. 608 - 614
Main Author 张芳 苏忠民
Format Journal Article
LanguageEnglish
Published Heidelberg Wuhan University of Technology 01.08.2012
Springer Nature B.V
Subjects
Chemistry and Materials Science
Materials Science
傅立叶变换红外光谱仪
力学性能
多壁碳纳米管
尺寸
扫描电子显微镜
纳米复合材料
聚氨酯基
表面改性
polyurethane
carbon nanotubes
nanocomposites
mechanical properties
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ISSN1000-2413
1993-0437
DOI10.1007/s11595-012-0514-3

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Summary:Polyurethanes/multi-walled carbon nanotube （PU/CNT） composites were prepared with a help of ultrasonically dispersing CNT in the traditional procedure of synthesizing polyurethane. In this case, the various loading levels, sizes and surface-modified groups were considered to regulate the mechanical performances of the PU/CNT nanocomposites. Moreover, the structure and mechanical properties of all the PU/CNT nanocomposites were investigated by attenuated total reflection-Fourier transform infrared spectroscopy, dynamic mechanical analysis, scanning electron microscope, transmission electron microscope, and tensile testing. The experimental results showed that a moderate loading-level of 0.1wt% and a diameter of 10-15 nm for CNT could produce the maximum tensile strength and elongation while it was worth noting that the surface carboxylation of CNT could further enhance the tensile strength and elongation of the PU/CNT nanocomposites.
Bibliography:Polyurethanes/multi-walled carbon nanotube （PU/CNT） composites were prepared with a help of ultrasonically dispersing CNT in the traditional procedure of synthesizing polyurethane. In this case, the various loading levels, sizes and surface-modified groups were considered to regulate the mechanical performances of the PU/CNT nanocomposites. Moreover, the structure and mechanical properties of all the PU/CNT nanocomposites were investigated by attenuated total reflection-Fourier transform infrared spectroscopy, dynamic mechanical analysis, scanning electron microscope, transmission electron microscope, and tensile testing. The experimental results showed that a moderate loading-level of 0.1wt% and a diameter of 10-15 nm for CNT could produce the maximum tensile strength and elongation while it was worth noting that the surface carboxylation of CNT could further enhance the tensile strength and elongation of the PU/CNT nanocomposites.
42-1680/TB
nanocomposites; polyurethane; carbon nanotubes; mechanical properties
ZHANG Fang, HUANG Jin, ZHANG Hao, SU Zhongmin, ZHANG Qiaoxin （1. Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China; 2. College of Chemical Engineering, Wuhan University of Technology, Wuhan 430070, China; 3. Key Laboratory of Attapulgite Science and Applied Technology of Jiangsu Province, Department of Chemical Engineering, Huaiyin Institute of Technology, Huai’an 223003, China; 4. College of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan 430070, China）
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ISSN:1000-2413
1993-0437
DOI:10.1007/s11595-012-0514-3