Microwave and ultrasound-assisted synthesis of poly(vinyl chloride)/riboflavin modified MWCNTs: Examination of thermal, mechanical and morphology properties

作者：Abdolmaleki Amir^*; Mallakpour Shadpour^*; Azimi Faezeh

来源：Ultrasonics Sonochemistry, 2018, 41: 27-36.

DOI：10.1016/j.ultsonch.2017.09.018

• Ultrasonication
• Multi-walled carbon nanotube
• Riboflavin
• Poly(vinyl chloride)
• Nanocomposites
• TEM

This study focused on the preparation and investigation of physicochemical features of new poly(vinyl chloride) (PVC) nanocomposites (NCs) including different amounts of carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) functionalized with riboflavin (RIB). Firstly, to increase the hydrophilicity of MWCNTs, the surface of them was functionalized by incorporating and formation of ester groups with RIB as a low cost and environmentally friendly biomolecule through ultrasound and microwave irradiations. Afterwards, PVC/RIB-MWCNTs NCs were fabricated via the solution casting and ultrasonic dispersion methods. Prepared NCs were examined by X-ray diffraction, thermogravimetric analysis, field emission scanning electron microscopy, transmission electron micrograph, and Raman spectroscopy. The PVC/RIB-MWCNTs NCs (12 wt%) showed the higher mechanical and thermal behavior as compared to other concentration of MWCNTs.

• 出版日期2018-3