期刊
REACTIVE & FUNCTIONAL POLYMERS
卷 106, 期 -, 页码 112-119出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.reactfunctpolym.2016.07.010
关键词
Thermogravimetric analysis; Multi-walled carbon nanotube; Composite; Transmission electron microscopy; Thin film
Here, poly(arnide-imide) (PAI) composites containing multi-walled carbon nanotubes (MWCNT) were synthesized with solution casting method. To improve the dispersion and compatibility with the polymer matrix the MWCNT was surface-modified with dopamine biomolecule under microwave irradiation. The prepared dopamine-functionalized MWCNT (MWCNf-Dop) was characterized for their structure, morphology, and thermal behavior employing Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis, field emission scanning electron microscopy (FE-SEM), and transmission electron microscopy (TEM). The results consistently confirmed the formation of dopamine functionalities on MWCNT. The MWCNT-Dop/PAI hybrid films were also characterized extensively using FT-IR and XRD techniques. The microstructure of the composites was studied by FE-SEM and TEM, in terms of the dispersion state of the nanotubes and the polymer-nanotube interface. The thermal behavior and mechanical properties of the resultant composites were also studied. In comparison with neat PAI, the MWCNT-Dop reinforced composites posses higher thermal stability, tensile strength and Young's modulus. (C) 2016 Elsevier B.V. All rights reserved.
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