Impact Modification Effects of SEBS-g-MA on Polyamide 6/Maleated Polypropylene Blends

폴리아미드6/반응성 포리프로필렌 블렌드계에서 SEBS-g-MA의 충격개선효과

  • Koh, Jae Song (Department of Chemical Engineering, Inha University) ;
  • Yoon, Tae Sung (Department of Chemical Science and Technology, Agency for Technology & Standards) ;
  • Jung, In Kwon (Department of Chemical Science and Technology, Agency for Technology & Standards) ;
  • Choi, Hyeong Ki (Department of Chemical Science and Technology, Agency for Technology & Standards) ;
  • Jang, Yoon Ho (Department of Chemical Engineering, Inha University)
  • Received : 1999.07.08
  • Accepted : 1999.11.06
  • Published : 1999.12.10

Abstract

Melt blend of PA6/PP-g-MA system containing SEBS-g-MA as a compatible impact modifier was prepared to investigate the change of mechanical properties and morphologies. The tensile strength slightly decreased, but the elongation at break increased with increasing content of SEBS-g-MA in the blend. Also the notched izod impact strength increased with increasing the content of PP-g-MA and SEBS-g-MA. It is attributed to improved compatibilization and interfacial adhesion by reaction of the amide of PA6 with maleic anhydride of SEBS-g-MA and PP-g-MA. The result of dynamic mechanical analysis(DMA) showed a typical behavior of the compatibilization in the polymer blends. Finally, in the phase structure observed by the use of SEM, we confirmed improvement of the compatibilization and interfacial adhesion with increasing the content of SEBS-g-MA and PP-g-MA.

Keywords

PA6;PP-g-MA;SEBS-g-MA;compatibilization

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