The objective of this study is to examine the influence of poly [styrene-b-(ethylene-co-butylene)-b-styrene] (SEBS) compatibilizer on the morphology and properties of atactic polystyrene/high density polyethylene (aPS/HDPE) blends. The rheological behavior of the blends melt during processing is followed. The concentration of SEBS does not significantly influence the processing parameters. The morphology is determined by SEM and TEM. aPS/HDPE/SEBS blends exhibit fine dispersion of HDPE or aPS particles in the matrix and better adhesion at the interface. Higher concentration of SEBS results in better compatibility. Transmission electron micrographs confirm existence of the SEBS interfacial layer between the aPS and the HDPE phase. This effect is stronger in the blends with higher SEBS concentration and HDPE as matrix. The mechanical properties are determined. The tensile strength decreases while the elongation at break and the impact strength increase with the SEBS content. The results prove that SEBS acts as a compatibilizer in aPS/HDPE blends and its effect is more expressed in blends with a higher SEBS content and HDPE as matrix.
Chirawithayaboon, A. and Kiatkamjornwong , S. (2004). Compatibilization of High-Impact Polystyrene/High-Density Polyethylene Blends By Styrene/ Ethylene-Butylene/Styrene Block Copolymer, J. Appl. Polym. Sci., 91(2): 742-755.
2.
Utracki, L.A. (1998). Commercial Polymer Blends, Chapman and Hall, London.
3.
Xu, B., Simonsen, J. and Rocheford, W.E. (2000). Mechanical Properties and Creep Resistance in Polystyrene/Polyethylene Blends, J. Appl. Polym. Sci., 76(7): 1100-1108.
4.
Hegberg, B.A., Brenniman, G.R. and Hallenbeck, W.H. (1992). Mixed Plastics Recycling Technology, Noyes Data Corp., Park Ridge, NJ.
5.
Frérejean, V. (1994). Thèsis, National Institute of Applicable Science, Lyon, pp. 167-170.
6.
Ha, C.-S. , Park, H.-D. and Cho , W.-J. (2000). Compatibilizers for Recycling of the Plastic Mixture Wastes. II. The Effect of a Compatibilizer for Binary Blends on the Properties of Ternary Blends , J. Appl. Polym. Sci., 76(7): 1048-1053.
7.
Albano, C. and Sanchez, G. (1999). Study of the Mechanical, Thermal, and Thermodegradative Properties of Virgin PP with Recycled and Non-Recycled HDPE, Polym. Eng. Sci., 39(8): 1456-1462.
8.
La Mantia, F.P. (1991). Recycling of Heterogeneous Plastics Wastes: I-Blends with Low-density Polyethylene, Polym. Degrad. Stab., 37(2): 145-148.
9.
Hope, P.S., Bonner, J.G. and Miles, A.F. (1994). A Study of Compatibilisers for Recovering the Mechanical Properties of Recycled Polyethylenes, Plast. Rubber Compos. Process Appl., 22(3): 147-158.
10.
Kallel, T., Jaziri, M. and Elleuch, B. (2002). Valorization of PE/PP and PE/PS mixtures: rheological aspect, Dechets Sci. Tech., 25(1 er trimestre): 40-45.
11.
Kim, T.Y. , Kim, D.M., Kim , W.J., Lee , T.H. and Suh , K.S. (2004). Effects of Poly[Styrene-b-(Ethylene-Co-Butylene)-b-Styrene] on the Charge Distributions of Low-Density Polyethylene/Polystyrene Blends , J. Polym. Sci. Part B: Polym. Phys., 42(15): 2813-2820.
12.
Abis, L., Abbondanza, L., Braglia, R., Castellani, L., Giannotta, G. and Po, R. (2000). Syndiotactic Polystyrene/High-Density Polyethylene Blends Compatibilized with SEBS Copolymer: Thermal, Morphological, Tensile, Dynamic-Mechanical, and Ultrasonic Characterization, Macromol. Chem. Phys., 201(14): 1732-1741.
13.
Chen, B., Li, X., Xu, S., Tang, T., Zhou, B. and Huang, B. (2002). Compatibilization Effects of Block Copolymers in High Density Polyethylene/Syndiotactic Polystyrene Blends, Polymer, 43(3): 953-961.
14.
Xu, S.A. and Tjong, S.C. (2000). Deformation Mechanisms and Fracture Toughness of Polystyrene/High-Density Polyethylene Blends Compatibilized by Triblock Copolymer, J. Appl. Polym. Sci., 77(9): 2024-2033.
15.
Tjong, S.C. and Xu, S.A. (1998). Impact and Tensile Properties of SEBS Copolymer Compatibilized PS/HDPE Blends, J. Appl. Polym. Sci., 68(7): 1099-1108.
16.
Kallel, T., Nageotte, V.M., Jaziri, M., Gerard, J.F. and Eleuch, B. (2003). Compatibilization of PE/PS and PE/PP Blends. I. Effect of Processing Conditions and Formulation, J. Appl. Polym. Sci., 90(9): 2475-2484.
17.
Karrad, S., Cuesta, J.-M.L. and Crespy, A. (1997). Compatibilising Ability of Styrene Hydrogenated Styrene/Butadiene Triblock Copolymer in High Density Polyethylene-Polystyrene Blends, Plast. Rubber Compos. Process Appl., 26(5): 193-198.
18.
Fortelný, I. , Šlouf, M., Sikora , A., Hlavatá, D., Hašová, V., Mikešová , J. and Jacob, C. (2006). The Effect of the Architecture and Concentration of Styrene-Butadiene Compatibilizers on the Morphology of Polystyrene/Low-Density Polyethylene Blends, J. Appl. Polym. Sci., 100(4): 2803-2816.
19.
Fortelný, I. , Mikešová , J., Hromádková, J., Hašová, V. and Horák, Z. (2003). Effect of Molecular Structure of Styrene-Butadiene Block Copolymers on Morphology, Rheological Properties, and Impact Strength of Polystyrene/ Polyethylene Blends, J. Appl. Polym. Sci. , 90(9): 2303-2309.
20.
Bonner, J.G. and Hope, P.S. (1993). In: Folkes, M.J. and Hope, P.S. (eds), Polymer Blends and Alloys, Blackie Academic and Professional , London.
21.
Li, J. and Favis, B.D. (2002). Strategies to Measure and Optimize the Migration of the Interfacial Modifier to the Interface in Immiscible Polymer Blends , Polymer, 43(18): 4935-4945.
22.
Jaziri, M. (1992). Thèsis, Université JEAN MONNET Saint Etienne, pp. 193-207.
23.
Slouf, M., Radonjic, G., Hlavatá, D. and Sikora, A. (2006). Compatibilized iPP/aPS blends: The Effect of the Viscosity Ratio of the Components on the Blends Morphology, J. Appl. Polym. Sci., 101(4): 2236-2249.
24.
Nachlis, W.L. , Kambour, R.P. and MacKnight , W.J. (1994). In Situ Polymerization of Bisphenol-A-Carbonate Cyclic Oligomers in Miscible Blends with a Styrene-Acrylonitrile Copolymer: Phase Separation Dynamics and the Influence of Phase Dispersion on Duktility, Polymer , 35(17): 3643-3657.
25.
Angola, J.C. , Fujita, Y., Sakai, T. and Inoue, T. (1998). Compatibilizer-Aided Toughening in Polymer Blends Consisting of Brittle Polymer Particles Dispersed in a Ductile Polymer Matrix , J. Polym. Sci., Polym. Phys. Ed., 26(4): 807-816.
