A convenient strategy to functionalize carbon nanotubes with ascorbic acid and its effect on the physical and thermomechanical properties of poly(amide-imide) composites

作者：Mallakpour Shadpour^*; Zadehnazari Amin

来源：Journal of Solid State Chemistry, 2014, 211: 136-145.

DOI：10.1016/j.jssc.2013.12.021

• Carbon nanotubes
• Ascorbic acid
• Electron microscopy
• Mechanical properties
• Thermal stability

Multi-walled carbon nanotubes (MWCNTs) were functionalized by ascorbic acid by a fast strategy under microwave irradiation to improve interfacial interactions and dispersion of CNTs in a poly(amide-imide) (PAL) matrix. This technique provides a rapid and economically viable route to produce covalently functionalized CNTs. The as-prepared, new type of functionalized CNTs were analyzed by several techniques. The thermal stabilities and mechanical interfacial properties of CNT/PAI composites were investigated using several techniques. The dispersion state of CNTs in the PAL matrix was observed by field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The mechanical interfacial property of the composites was significantly increased by the addition of ascorbic acid treated CNTs. The FE-SEM and TEM results showed that the separation and uniform dispersion of CNTs in the PAL matrix. The overview of these recent results is presented. 2014 Elsevier Inc.

• 出版日期2014-3