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Journal of Composite Materials
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0021998309345301v1
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Influence of Hyperbranched Polyamine-ester Modified Carbon Nanotubes on Properties of Epoxy Nanocomposites

Ya-Ping Zheng

Department of Applied Chemistry, School of Natural and Applied Science Northwestern Polytechnical University, Xi'an, 710129, China, zhengyp{at}nwpu.edu.cn

Jiao-Xia Zhang

Department of Applied Chemistry, School of Natural and Applied Science Northwestern Polytechnical University, Xi'an, 710129, China

Pei-Ying Yu

Department of Applied Chemistry, School of Natural and Applied Science Northwestern Polytechnical University, Xi'an, 710129, China

Li-Li Liu

Department of Applied Chemistry, School of Natural and Applied Science Northwestern Polytechnical University, Xi'an, 710129, China

Yuan Gao

Department of Applied Chemistry, School of Natural and Applied Science Northwestern Polytechnical University, Xi'an, 710129, China

Surface modification of the acidified multi-walled carbon nanotubes (MWNTs) was conducted by hyperbranched polyamine-ester (HBP). The sample was characterized with the Raman spectra, X-ray diffraction, and transmission electron microscopy. Nanocomposites with MWNTs/epoxy matrix were prepared by compounding the modified MWNTs and epoxy resin. As a result, the MWNTs-capped organic molecules formed core/shell structure. The grafted organic molecules solve the dispersion of the MWNTs in the epoxy resin-based nanocomposites and then enhancing the antifriction and dielectric property of such nanocomposites.

Key Words: carbon nanotubes • hyperbranched polyamine-ester • surface modification • nanocomposites.

This version was published on November 1, 2009

Journal of Composite Materials, Vol. 43, No. 23, 2771-2783 (2009)
DOI: 10.1177/0021998309345301
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