Intercalation Behavior of Clay in Polypropylene/Montmorillonite/Wood Nanocomposites

폴리프로필렌/몬모릴로나이트/목분 나노복합체에서의 클레이 박리거동

  • Kim, Jin Sung (Dept. of Materials Science and Engineering, Korea University) ;
  • Lee, Sun Young (Dept.of Forest Products Korea Forest Research Institute) ;
  • Yoon, Ho Gyu (Dept. of Materials Science and Engineering, Korea University)
  • 김진성 (고려대학교, 신소재공학과) ;
  • 이선영 (국립산림과학원, 기능소재연구실) ;
  • 윤호규 (고려대학교, 신소재공학과)
  • Received : 2009.12.09
  • Accepted : 2010.05.20
  • Published : 2010.05.31

Abstract

Polypropylene / montmorillonite / wood flour nanocomposites are melt-mixed by using a twin screw extruder. The montmorillonite is intercalated by the wood flour and the basal spacing of montmorillonite is increased with increasing the content of wood flour. The exfoliation constantly occurs by adding more than 10 wt.% of maleic anhydride-grafted polypropylene as the compatibilizer, which is used for improving the interfacial adhesion between matrix and filler. Also, the maleic anhydride-grafted polypropylene enhances the mechanical properties of the nanocomposites.

Keywords