Compatibilizing effect of SEBS-g-MA on the mechanical properties of different types of OMMT filled polyamide 6/polypropylene nanocomposites

• Published in: Composites. Part A, Applied science and manufacturing Applied science and manufacturing, 2008-12, Vol.39 (12), p.1802-1814
• Main Authors: Kusmono, Mohd Ishak, Z.A., Chow, W.S., Takeichi, T., Rochmadi
• Format: Article
• Language: English
• Subjects: A. Nano structures; Applied sciences; B. Mechanical Properties; B. Strength; Composites; E. Injection Molding; Exact sciences and technology; Forms of application and semi-finished materials; Polymer industry, paints, wood; Technology of polymers
• ISSN: 1359-835X; 1878-5840
• DOI: 10.1016/j.compositesa.2008.08.009

Nanocomposites based on polyamide 6/polypropylene (PA6/PP) blends containing organophilic montmorillonite (OMMT) and maleic anhydride grafted styrene–ethylene/butylene–styrene (SEBS-g-MA) were prepared by melt compounding method followed by injection molding. Four different types of OMMT were used in this work, i.e. dodecylamine modified MMT (D-MMT), 12-aminolauric acid modified MMT (A-MMT), stearylamine modified MMT (S-MMT), and commercial organo-MMT (C-MMT). X-ray diffraction (XRD) and transmission electron microscopy (TEM) results revealed the presence of SEBS-g-MA did not produce any apparent effect on the dispersion of OMMT in the PA6/PP matrix. Incorporation of SEBS-g-MA into the nanocomposites enhanced strength, ductility, and impact strength but slightly reduced stiffness. A good balance of strength, stiffness, and toughness was obtained for PA6/PP/OMMT nanocomposites in the presence of SEBS-g-MA.