Processing and Charecterisation of Epoxy/Carbon Black Nanocomposites by Twin Screw Extrusion
DOI:
https://doi.org/10.51983/ajeat-2014.3.2.714Keywords:
Carbonblack (CB), orthogonal array (OA), thermo-gravimetric analysis (TGA), DOE:design of experiment, analysis of variance (ANOVA)Abstract
This paper presents the experimental investigation of the influence of process parameters of twin screw extrusion on the dispersion, electrical, thermal and mechanical properties of epoxy/CB nanocomposites. Four factors, namely, loading level of carbon black in epoxy, screw speed; temperature and number of passes were selected for the design of L18 OA layout. Response factors such as electrical resistivity, glass transition temperature, microhardness and impact strength of epoxy/CB nanocomposites were studied. From TGA, the addition of CB to epoxy resulted in improved thermal stability. ANOVA of the experimental results showed that CB loading had significant influence on all the responses.
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