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Study on the Morphology of the PC/ABS Blend by High Shear Rate Processing
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  • Journal title : Korean Chemical Engineering Research
  • Volume 52, Issue 3,  2014, pp.382-387
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2014.52.3.382
 Title & Authors
Study on the Morphology of the PC/ABS Blend by High Shear Rate Processing
Lee, Dong Uk; Yong, Da Kyoung; Lee, Han Ki; Choi, Seok Jin; Yoo, Jae Jung; Lee, Hyung Il; Kim, Seon-Hong; Lee, Kee Yoon; Lee, Seung Goo;
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The PC/ABS blends were manufactured with high shear rate processing. Changes of the blend morphology were analyzed according to the screw speed and processing time. To find optimal conditions of the high shear rate processing of the PC/ABS blend, blend morphology and size of the dispersed phase, ABS, were observed with a SEM. Also, tensile properties of the PC/ABS blends were measured to investigate the effect of the high shear rate process with the screw speed of 500 rpm to 3000 rpm for processing times of 10s to 40s. Especially, to observe the dispersed phase of the PC/ABS blend clearly, fracture surfaces of the PC/ABS blend were etched with chromic acid solution. As screw speed and processing time increase, dispersed phase size of the PC/ABS blend decreases and mechanical properties of the blend decrease as well. Especially, at screw speed over than 1000 rpm of high shear rate processing, mechanical properties of the PC/ABS blends decrease drastically due to the degradation of the blend during the high shear rate processing. Consequently, the optimal condition of screw speed of the high shear processing of the PC/ABS blend is set at 1000rpm, in this study. Under optimal condition, the PC/ABS blend has relatively high mechanical properties with the relatively stable micro-structure having nanometer scale dispersed phase.
Morphology;Polymer Blend;PC/ABS;High Shear Rate;Etching;
 Cited by
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