PC/ABS 블렌드의 고속전단성형에 따른 모폴로지 변화에 관한 연구 = Study on the Morphology of the PC/ABS Blend by High Shear Rate Processing

다국어 초록 (Multilingual Abstract)

The PC/ABS blends were manufactured with high shear rate processing. Changes of the blend morphologywere analyzed according to the screw speed and processing time. To find optimal conditions of the high shear rateprocessing 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 withthe screw speed of 500 rpm to 3000 rpm for processing times of 10s to 40s. Especially, to observe the dispersed phase ofthe 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 theblend decrease as well. Especially, at screw speed over than 1000 rpm of high shear rate processing, mechanical propertiesof 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 relativelystable micro-structure having nanometer scale dispersed phase.

참고문헌 (Reference)

1 허우영, "수분산 아크릴 폴리우레탄과 탄소나노튜브의 혼합에 의한 전도성 코팅용액 제조" 한국화학공학회 51 (51): 73-79, 2013

2 Cruz, C. A., "The Basis for Miscibility in Polyester-polycarbonate Blends" 12 (12): 726-731, 1979

3 Jan, R., "Ternary PC/ABS/PMMA Blends - Morphology and Mechanical Properties Under Quasi-static Loading Conditions" 57 (57): 87-94, 2012

4 M.M.K. Khan, "Rheological and mechanical properties of ABS/PC blends" 한국유변학회 17 (17): 1-7, 2005

5 John Hee Hong, "Morphological, Mechanical and Rheological Properties of Poly(acrylonitrile-butadiene-styrene)/Polycarbonate/Poly(ε-caprolactone) Ternary Blends" 한국고분자학회 15 (15): 520-526, 2007

6 Suarez, H., "Mechanical Properties of ABS/Polycarbonate Blends" 29 (29): 3253-3259, 1984

7 Ibrahim, B. A., "Influence of Polymer Blending on Mechanical and Thermal Properties" 4 (4): 157-161, 2010

8 Lombardo, B. S., "Influence of ABS Type on Morphology and Mechanical Properties of PC/ABS Blends" 54 (54): 1697-1720, 1994

9 Utracki, L. A., "Handbook of Polym Sci and Technol" 121-201, 1989

10 Favis, B. D., "Factors Influencing Structure Formation and Phase Size in an Immiscible Polymer Blend of Polycarbonate and Polypropylene Prepared by Twin-screw Extrusion" 32 (32): 1474-1481, 1991

11 Mohammad Zuber, "Blends of polyurethane-polymethyl methacrylate/TiO2-based composites" 한국화학공학회 30 (30): 1652-1658, 2013