Mechanical and structural properties of polypropylene/nanoclay composites containing various ratios of PP-g-MA and SEBS-g-MA

Zohreh Mohammadi¹ Ehsan Bagheri² Rouhollah Bagheri³ Omid Moini Jazani⁴

1) MSc Graduate of Polymer Engineering, Department of Chemical Engineering, Isfahan University of Technology, Isfahan, Iran Email:
2) MSc Graduate of Manufacturing Engineering, Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, Iran Email:
3) Professor of Polymer Engineering, Department of Chemical Engineering, Isfahan University of Technology, Isfahan, Iran Email:
4) Assistant Professor of Polymer Engineering, Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran Email:

Publication : 6th International Conference on Chemistry and Chemical Engineering(ccce.ir)
Abstract :
Polypropylene/organo-modified montmorillonite (PP/OMMT) nanocomposites containing different weight ratios of PP-g-MA/SEBS-g-MA (10/0, 7.5/2.5, 5/5, 2.5/7.5, and 0/10) were prepared via melt compounding using twin screw extrusion followed by injection molding. Mechanical and structural properties of the samples were studied using tensile and Izod impact tests, X-ray diffraction (XRD) analysis, and field emission scanning electron microscopy (FESEM). The XRD results indicated that the characteristic peak for the nanoclay shifted to lower angles for all the nanocomposites implying that polymer chains could intercalate into the nanoclays galleries. Mechanical testing revealed that a good balance between stiffness and toughness was achieved for a ratio of 5/5 and FESEM images showed a uniform distribution of OMMTs in the matrix for this ratio.
Keywords : Nanocomposite Polypropylene Mechanical properties Structural properties.