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Khalil Faghihi

Khalil Faghihi

Academic rank: Professor
ORCID: https://orcid.org/0000-0001-9884-1788
Education: PhD.
ScopusId: 6603751266
Faculty: Science
Address: Arak University
Phone:

Research

Title
Synthesis and studies of thermal, mechanical and electrical properties of MWCNT– cyclodextrin as a nanoparticle in polyamide matrix based on 2,2-Bis[4-(4-aminophenoxy) phenyl] propane cyclodextrin as a nanoparticle in polyamide
Type
JournalPaper
Keywords
polyamide; film; mechanical properties; nanocomposite
Year
2017
Journal Polymer Advanced Technology
DOI
Researchers azizollah mirsamie ، Khalil Faghihi ، Meisam Shabanian

Abstract

In the present research, polyamide (PA) (6) was synthesized by the polycondensation reaction of 2,2-Bis[4-(4- aminophenoxy)phenyl] propane as a diamine (4) with adipic acid (5) in the optimized condition. The resulting PA was characterized using Fourier transform infrared spectroscopy, Proton Nuclear Magnetic Resonance (1H NMR) spectroscopy, inherent viscosity (ηinh), X-ray diffraction, and solubility tests. Also, the thermal property of the new PA (6) was investigated by using Thermogravimetric analysis. To apply multiwall carbon nanotube (MWCNT) as an effective reinforcement in polymer composites, it is essential to have appropriate proper dispersion, interfacial adhesion between the MWCNT and polymer matrix, and increasing solubility. With this end particularly, functionalized MWCNTs were combined with a soluble molecule, and a series of modified MWCNT with cyclodextrin (Cy) known as PA/MWCNT-Cy composite film (2, 5, and 8wt%) were prepared by a solution intercalation technique. Field emission scanning electron microscopy images showed that MWCNT-Cy was well dispersed in the PA matrix. Thermogravimetric analysis indicated an increase in thermal stability of nanocomposites as compared with the pristine PA. Anisotropic structure of the synthesized films and dispersed MWCNT-Cy in the films approved by use of X-ray diffraction and field emission scanning electron microscopy. The resultant PA/MWCNT-Cy composite films were electrically conductive, which is favorable for many practical uses. Measurements of mechanical properties of these composite films showed high strength in 8%MWCNT-Cy content. Also, results showed increases in Young’s modulus and tensile strength.