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Impact essential work of fracture toughness of ABS/polyamide-6 blends compatibilized with olefin based copolymers

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Abstract

The impact fracture toughness of acrylonitrile-styrene-butadiene/polyamide-6 (ABS/PA6) blends compatibilized with 5% by weight carbon monoxide modified ethylene-n butyl acrylate-maleic anhydride (EnBACO-MAH) or ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) copolymers were examined as a function of blend ratio by standard Charpy tests, Essential Work of Fracture (EWF) Methodology and fracture surface morphologies. The samples were first processed in twin-screw extruder and they were subsequently injection moulded. The incompatibilized blends and neat-PA6 fractured in brittle manner, whereas compatibilized blends fractured in ductile manner. The EWF values yielded a maximum when weight percentages of ABS and PA6 were equal to each other. The values obtained in the case of EnBACO-MAH were higher than that of EMA-GMA regardless of blend composition in EWF tests. The trend of impact strengths observed in standard notched Charpy impact tests was in accordance with that of EWF values of blends. The morphology of the ABS/PA6 blends exhibited differences as a function of the component ratio and compatibilizer type. These differences in topology of the fracture surfaces of the blends were utilized to understand the deformation mechanism, and to correlate the fracture toughness values of the blends.

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Author notes

  1. Guralp Ozkoc

    Present address: Department of Chemical Engineering, Kocaeli University Engineering Faculty, 41040, Kocaeli, Turkey

Authors and Affiliations

  1. Department of Polymer Science and Technology, Middle East Technical University, Inonu Bulvard, 06531, Ankara, Turkey

    Guralp Ozkoc

  2. Department of Chemical Engineering, Middle East Technical University, Inonu Bulvard, 06531, Ankara, Turkey

    Goknur Bayram

  3. Department of Chemistry, Middle East Technical University, Inonu Bulvard, 06531, Ankara, Turkey

    Erdal Bayramli

Authors
  1. Guralp Ozkoc
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  2. Goknur Bayram
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  3. Erdal Bayramli
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Correspondence to Goknur Bayram.

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Ozkoc, G., Bayram, G. & Bayramli, E. Impact essential work of fracture toughness of ABS/polyamide-6 blends compatibilized with olefin based copolymers. J Mater Sci 43, 2642–2652 (2008). https://doi.org/10.1007/s10853-008-2483-7

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  • DOI: https://doi.org/10.1007/s10853-008-2483-7

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