Polymer(Korea) (폴리머)

The Polymer Society of Korea (한국고분자학회)
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Nano-Kenaf Cellulose Effects on Improved Mechanical Properties of Polypropylene Composite

나노 케냐프 셀룰로오스가 폴리프로필렌 복합소재의 물성 증가에 미치는 영향

  • Oh, Jeong Seok (Materials Development Center, Hyundai-Kia Motors Co.) ;
  • Lee, Seong-Hoon (Materials Development Center, Hyundai-Kia Motors Co.) ;
  • Bumm, Sughun (Institute of Polymer Engineering, The Univ. of Akron) ;
  • Kim, Kwang-Jea (Department of Polymer Science and Engineering, Inha Univ.)
  • 오정석 (현대기아자동차 고분자재료 연구팀) ;
  • 이성훈 (현대기아자동차 고분자재료 연구팀) ;
  • 범석훈 (애크런대 고분자공학과) ;
  • 김광제 (인하대학교 고분자공학과)
  • Received : 2013.04.03
  • Accepted : 2013.05.13
  • Published : 2013.09.25
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Abstract

The effects of nano size kenaf cellulose fiber on mechanical property of polypropylene (PP) composite were investigated. The addition of nano-kenaf in place of natural kenaf showed higher tensile strength, flexural strength, impact strength, and heat deflection temperature compared to the natural kenaf filled PP composite, while it shows lower melt flow index, elongation%, and flexural modulus. These seemed to be due to the increased surface area of nano-kenaf fiber contacting PP matrix and reduced impurities such as volatile extractives on the fiber surface.

나노입자크기의 케냐프섬유를 폴리프로필렌에 첨가하였을 시, 복합소재의 물성변화를 관찰하였다. 천연크기의 케냐프섬유를 나노입자크기의 케냐프섬유로 대체하였을 시, 그 복합소재의 인장강도, 휨강도, 충격강도, 열변형온도가 증가한 반면에, 용융지수, 연신율(%), 충격강도 등이 감소하였다. 이는 나노입자크기의 케냐프섬유가 폴리프로필렌과 접촉하는 표면적의 증가와 섬유표면에 존재하는 휘발성 추출물질 등의 불순물의 감소에 따른 것으로 판단된다.

Keywords

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