{"title":"Thermal Stability and Crystallization Behaviour of Modified ABS\/PP Nanocomposites","authors":"Marianna I. Triantou, Petroula A. Tarantili","volume":93,"journal":"International Journal of Chemical and Molecular Engineering","pagesStart":973,"pagesEnd":979,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/9999332","abstract":"
In this research work, poly (acrylonitrile-butadienestyrene)\/
\r\npolypropylene (ABS\/PP) blends were processed by melt
\r\ncompounding in a twin-screw extruder. Upgrading of the thermal
\r\ncharacteristics of the obtained materials was attempted by the
\r\nincorporation of organically modified montmorillonite (OMMT), as
\r\nwell as, by the addition of two types of compatibilizers;
\r\npolypropylene grafted with maleic anhydride (PP-g-MAH) and ABS
\r\ngrafted with maleic anhydride (ABS-g-MAH). The effect of the
\r\nabove treatments was investigated separately and in combination.
\r\nIncreasing the PP content in ABS matrix seems to increase the
\r\nthermal stability of their blend and the glass transition temperature
\r\n(Tg) of SAN phase of ABS. From the other part, the addition of ABS
\r\nto PP promotes the formation of its β-phase, which is maximum at 30
\r\nwt% ABS concentration, and increases the crystallization temperature
\r\n(Tc) of PP. In addition, it increases the crystallization rate of PP.The
\r\nβ-phase of PP in ABS\/PP blends is reduced by the addition of
\r\ncompatibilizers or\/and organoclay reinforcement. The incorporation
\r\nof compatibilizers increases the thermal stability of PP and reduces
\r\nits melting (ΔΗm) and crystallization (ΔΗc) enthalpies. Furthermore it
\r\ndecreases slightly the Tgs of PP and SAN phases of ABS\/PP blends.
\r\nRegarding the storage modulus of the ABS\/PP blends, it presents a
\r\nchange in their behavior at about 10°C and return to their initial
\r\nbehavior at \uf020~110°C. The incorporation of OMMT to no compatibilized
\r\nand compatibilized ABS\/PP blends enhances their storage modulus.<\/p>\r\n","references":"[1] M. Frounchi, R. P. Burford, \"State of compatibility in crystalline\r\npolypropylene\/ABS amorphous terpolymer thermoplastic blends. Effect\r\nof styrenic copolymers as compatibilisers\u201d,Iran. J. Polym. Sci. Technol.,\r\nvol. 2, no. 2, pp. 59-68, 1993.\r\n[2] Y. K. Lee, J. B. Lee, D. H. Park, W. N. Kim, \"Effects of accelerated\r\naging and compatibilizers on the mechanical and morphological\r\nproperties of polypropylene and poly(acrylonitrile-butadiene-styrene)\r\nblends\u201d, J. Appl. Polym. Sci., vol. 127, issue 2, pp. 1032-1037, 2013.\r\n[3] H. G. Lee, Y.-T. Sung, Y. K. Lee, W. N. Kim, H. G. Yoom, H. S. Lee,\r\n\"Effects of PP-g-MAH on the mechanical, morphological and\r\nrheological properties of polypropylene and poly(acrylonitrilebutadiene-\r\nstyrene) blends\u201d, Macromol. Res., vol 17, no. 6, pp. 417-423,\r\n2009.\r\n[4] A. C. Patel, R. B. Brahmbhatt, B. D. Sarawade, S. Devi, \"Morphological\r\nand mechanical properties of PP\/ABS blends compatibilized with PP-gacrylic\r\nacid\u201d, J. Appl. Polym. Sci., vol 81, issue 7, pp. 1731-1741, 2001.\r\n[5] C. K. Kum, Y.-T. Sung, Y. S. Kim, H. G. Lee, W. N. Kim, H. S. Lee, H.\r\nG. Yoon, \"Effects of Compatibilizer on Mechanical, Morphological, and\r\nRheological Properties of Polypropylene\/Poly(acrylonitrile-butadienestyrene)\r\nBlends\u201d, Macromol. Res., vol. 15, no. 4, pp. 308-314, 2007.\r\n[6] P. Xiang-Fang,P. Jun, X. Xiao-li, T. Lih-Sheng, \"Effect of organoclay\r\non the mechanical properties and crystallization behaviors of injectionmolded\r\nPP\/ABS\/montmorillonitenanocomposites\u201d, ANTEC conference\r\nproceedings, pp. 1105-1108, 2009.\r\n[7] I. Nigam, D. Nigam, G.N. Marthur, \"Effect of Rubber Content of ABS\r\non Properties of PC\/ABS Blends. I. Rheological, Mechanical, and\r\nThermal Properties\u201d, Polym.-Plast. Technol. Eng., vol. 44, issue 5, pp.\r\n815-832, 2005.\r\n[8] A. C. Patel, R. B. Brahmbhatt, S. Devi, \"Mechanical properties and\r\nmorphology of PP\/ABS blends compatibilized with PP-g-2-HEMA\u201d, J.\r\nAppl. Polym. Sci., vol88, issue 1, pp. 72-78, 2003.\r\n[9] Y. Wang, Q. Zhang, Q. Fu, \"Compatibilization of Immiscible\r\nPoly(propylene)\/Polystyrene Blends Using Clay\u201d, Macromol. Rapid\r\nCommun., vol. 24, issue 3, pp. 231-235, 2003.\r\n[10] B. Chen, J.R.G. Evans, \"Mechanical properties of polymer-blend\r\nnanocomposites with organoclays: Polystyrene\/ABS and high impact\r\npolystyrene\/ABS\u201d, J. Polym. Sci., Part B:Polym. Phys., vol. 49, issue 6,\r\npp. 443-454, 2011.\r\n[11] C. C. Ibeh, N. Baker, D. Lamm, S. Wang, D. Weber, J. Oplonitnik,\r\nANTEC conference proceedings 5, pp. 1893-1897, 2005.\r\n[12] Y. T. Sung, Y. S. Kim, Y. K. Lee, W. N. Kim, H. S. Lee, J. Y. Sung, H.\r\nG. Yoon, \"Effects of clay on the morphology of Poly(acrylonitrilebutadiene-\r\nstyrene) and polypropylene nanocomposites\u201d, Polym. Eng.\r\nSci., vol. 47, issue 10, pp. 1671-1677, 2007.\r\n[13] Q. Shu, X. Zou, W. Dai, Z. Fu, \"Formation of \u03b2-iPP in isotactic\r\npolypropylene\/acrylonitrile\u2013butadiene\u2013styrene blends: Effect of resin\r\ntype, phase composition, and thermal condition\u201d, J.Macromol. Sci., Part\r\nB: Phys., vol. 51, pp. 756-766, 2012.\r\n[14] C Wang, Z. Zhang, Y. Du, J. Zhang, K. Mai, \"Effect of acrylonitrile\u2013\r\nbutadiene\u2013styrene copolymer(ABS) on \u03b2-nucleation in \u03b2-nucleated\r\npolypropylene\/ABS blends, Polym. Bull., vol 69, pp. 847-859, 2012.\r\n[15] Y. Cai, F. Huang, X. Xia, Q. Wei, X. Tong, A. Wie, W. Gao,\r\n\"Comparison between structures and properties of ABS nanocomposites\r\nderived from two different kinds of OMT\u201d, J. Mater. Eng. Perform.,vol.\r\n19, pp. 171-176, 2010.\r\n[16] H. Ma, L. Tong, Z. Xu, Z. Fang, \"Clay network in ABS-graft-MAH\r\nnanocomposites: rheology and flammability\u201d,Polym. Degrad. Stab., vol.\r\n92, pp. 1439-1445, 2007.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 93, 2014"}