Paper Title:
Effect of Co-Monomer Content on Rheological Property of Sawdust/ABS Composites
  Abstract

Effect of co-monomer content in Acrylonitrile-Butadiene-Styrene copolymer (ABS) on the rheological property of sawdust reinforced ABS composites was investigated using capillary die rheometer. Three grades of commercial ABS resin were used. Sawdust from Para rubber tree treated with N-2(aminoethyl) 3-aminopropyl trimethoxy silane was blended with ABS by melt blending process using twin-screw extruder. From the results, shear thinning behavior was found for all of composites in the same shear rate ranges for testing that were investigated. At the low shear rate, the composites which contain higher acrylonitrile content, showed higher viscosity. At high shear rate, the viscosity of each co-monomer dependent composites tends to come close to each other on the curves. In this study, Carreau’s model was used for curve fitting and those parameters were also determined. Die swell ratio of the composites tended to increase at the initial ranges of shear rate of 10-500 s-1, and then the swelling ratio value decreased dramatically once the shear rate were further applied. The molecular weight has more effects than comonomer content on the die swell behavior i.e., at the same molecular weight, composites with higher butadiene content show higher swelling ratio.

  Info
Periodical
Advanced Materials Research (Volumes 93-94)
Edited by
S. Suttiruengwong and W. Sricharussin
Pages
611-614
DOI
10.4028/www.scientific.net/AMR.93-94.611
Citation
P. Threepopnatkul, W. Teppinta, N. Sombatsompop, "Effect of Co-Monomer Content on Rheological Property of Sawdust/ABS Composites", Advanced Materials Research, Vols. 93-94, pp. 611-614, 2010
Online since
January 2010
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$32.00
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