Mallakpour Shadpour, Abdolmaleki Amir, Azimi Faezeh
Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran; Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran; College of Pardis, Chemistry Section, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
College of Pardis, Chemistry Section, Isfahan University of Technology, Isfahan 84156-83111, Islamic Republic of Iran.
Ultrason Sonochem. 2017 Nov;39:589-596. doi: 10.1016/j.ultsonch.2017.05.028. Epub 2017 May 19.
The present paper represents a simple and efficient technique via ultrasonic irradiation, which utilized for chemical treatment of carboxylated multi-walled carbon nanotubes (MWCNTs-COOH) with Thiamine (Tm). Poly(vinyl chloride) (PVC) based nanocomposites (NC)s were prepared by the incorporation of various amounts of modified MWCNTs (4, 8, and 12wt%) within the PVC matrix by blending solution and ultrasonic distribution methods. The morphological, chemical structure and thermal stability of the PVC/Tm-MWCNT NCs were identified via Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, transmission electron microscopy, field emission scanning electron microscopy, and thermogravimetric analysis. The obtained results of thermal behavior indicated the high thermal stability of PVC/Tm-MWCNT NCs in comparison with the pure PVC via presenting diverse quantities of Tm-MWCNTs. In addition, the mechanical behavior of the PVC/Tm-MWCNT NCs films was examined and the results exhibited that mechanical properties of fabricated NCs were improved.
本文介绍了一种通过超声辐照的简单高效技术，该技术用于用硫胺素（Tm）对羧基化多壁碳纳米管（MWCNTs-COOH）进行化学处理。通过溶液共混和超声分散方法，在聚氯乙烯（PVC）基体中加入不同含量（4wt%、8wt%和12wt%）的改性多壁碳纳米管，制备了基于聚氯乙烯的纳米复合材料（NCs）。通过傅里叶变换红外光谱、拉曼光谱、X射线衍射、透射电子显微镜、场发射扫描电子显微镜和热重分析等手段，对PVC/Tm-MWCNT纳米复合材料的形态、化学结构和热稳定性进行了表征。热行为测试结果表明，与纯PVC相比，通过加入不同数量的Tm-MWCNTs，PVC/Tm-MWCNT纳米复合材料具有更高的热稳定性。此外，还对PVC/Tm-MWCNT纳米复合材料薄膜的力学性能进行了测试，结果表明所制备的纳米复合材料的力学性能得到了改善。
