Mechanical Properties and Morphology of Polyamide/Polypropylene Blends

  • Kim, Su Young (Chemical Materials R&D Center, Korea Automotive Technology Institute) ;
  • Ha, Jin Uk (Chemical Materials R&D Center, Korea Automotive Technology Institute) ;
  • Shin, Donghyeok (Department of Energy, Materials and Chemical Engineering, Korea University of Technology and Education) ;
  • Jung, Wooseok (R&D Center, Woo-Sung Chemical Co., Ltd.) ;
  • Lee, Pyoung-Chan (Chemical Materials R&D Center, Korea Automotive Technology Institute)
  • Received : 2019.09.16
  • Accepted : 2019.10.11
  • Published : 2020.03.31


This study examined the effects of the addition of maleic anhydride-grafted polypropylene (PP-g-MA) and polyolefin elastomer (POE) on polyamide 66 (PA66) and polypropylene (PP) blends. The blends of PA66/PP with PP-g-MA and POE were prepared using a twin screw extruder. Mechanical testing results revealed that the tensile, flexural, and izod impact strengths of the blends were maximized at a PP-g-MA content of 2 phr. The increased mechanical strength of the blends with PP-g-MA was attributed to the compatibilizing effect of the PA66 and PP blends. In addition, as the POE content increased, the impact strength of the blends increased. However, at a high POE content, the tensile and flexural strengths decreased, seemingly because of the lower mechanical properties of POE.


Supported by : 중소벤처기업부


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