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Molecular and Morphological Characterization of Immiscible SAN/EPDM Blends Filled by Nano Filler |
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| Authors: | Zlata Hrnjak‐Murgi&#x; elimir Jel i&#x; Vera Kova evi&#x; Marica Mlinac‐Mi&#x;ak Jasenka Jelen i&#x; |
| Abstract: | The compatibilizing effect of nano sized calcium carbonate filler on immiscible blends of styrene‐co‐acrylonitrile/ethylene propylene diene (SAN/EPDM) was examined. The surface energy of the calcium carbonate was modified by stearic acid. The compatibility of SAN/EPDM blends was studied by following the glass transition temperature Tg by DSC. SEM was used to observe the blend morphology and the X‐ray analyzer was used to detect the calcium from filler in samples. Mechanical properties of the blends were determined, and related to changes of polymer‐filler interactions and morphology. The results suggest that the morphology of the SAN/EPDM blends studied was affected by the reduction of surface energy of the filler.  SEM micrograph of an SAN/EPDM blend with 5% of maximally treated filler. |
| Keywords: | ethylene propylene diene (EPDM) filled polymer blends immiscible blends morphology nano‐particles polymer solid interactions surface treated filler styrene‐co‐acrylonitrile (SAN) |