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Mechanıcal, Thermal and Morphological Properties of Expandable Graphite Filled Acrylonitrile-Butadiene-Styrene Composites

BROWSE_DETAIL_CREATION_DATE: 01-08-2017

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BROWSE_DETAIL_TYPE: Thesis

BROWSE_DETAIL_SUB_TYPE: Masters

BROWSE_DETAIL_PUBLISH_STATE: Unpublished

BROWSE_DETAIL_FORMAT: PDF Document

BROWSE_DETAIL_LANG: English

BROWSE_DETAIL_SUBJECTS: Chemical technology, Chemical engineering, Chemicals: Manufacture, use, etc.,

BROWSE_DETAIL_CREATORS: Cirmad, Hussam Mohamed S. (Author),

BROWSE_DETAIL_CONTRIBUTERS: Tirkeş, Seha (Advisor),

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Acrylonitrile-butadiene-styrene, Expandable Graphite, Mechanical Properties, Polymer Composites, Extrusion


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In this thesis work, acrylonitrile-butadiene-styrene (ABS) copolymer was loaded with expandable graphite (EG) at four different concentrations of 5%, 10%, 15% and 20%. ABS/EG composite samples were prepared by lab-scale micro-compounder followed by injection molding process. Mechanical, thermo-mechanical, melt-flow and morphological characterizations of composites were done by carried out tensile and impact tests, dynamic mechanical analysis (DMA), melt flow index (MFI) test and scanning electron microscopy (SEM), respectively.According to tensile, impact and DMA test results, tensile strength and storage modulus of ABS were improved with increase in EG content. However, percent elongation and impact strength values showed decreasing trend with EG additions. MFI test revealed that the EG incorporation caused no dramatic change on MFI value and processability of neat ABS. EG flakes exhibited well-dispersion for all of the filling ratios as the SEM micro-images of composites were examined. 15% and 20% EG containing ABS composites were remarked as more suitable among prepared composites.


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