Article
  • Preparation and Physical Properties of Polypropylene/Cellulose Composites
  • Jang SY, Kim DS
  • 폴리프로필렌/셀룰로오스 복합재의 제조 및 물성
  • 장송이, 김대수
Abstract
Cellulose has attracted much attention as potential reinforcements in green composites. In this study, polypropylene (PP)/cellulose composites were prepared by melt-blending followed by compression molding. To improve interfacial bonding between PP and cellulose, maleic anhydride-grafted polypropylene (MAPP) was used. Mechanical properties of the PP/cellulose composites were investigated by UTM and izod impact tester. Thermal properties of the PP/cellulose composites were investigated by TGA and DSC. SEM images for the fracture surfaces of the composites showed that the MAPP was effective in improving PP/cellulose interfacial bonding. Tensile strength and modulus of the composite were maxima when MAPP content, based on cellulose content, was 3 wt%. With increasing cellulose content, the impact strength of the composites decreased but the tensile strength and modulus increased.

셀룰로오스는 그린 복합재의 보강재로서 많은 관심을 받고 있다. 본 연구에서는 용융혼합 및 압축성형에 의해 폴리프로필렌/셀룰로오스 복합재를 제조하였다. 폴리프로필렌과 셀룰로오스의 계면결합을 향상시키기 위해 말레산 무수물로 개질된 폴리프로필렌(MAPP)을 사용하였다. 폴리프로필렌/셀룰로오스 복합재의 기계적 특성을 알아보기 위해 만능재료시험기와 아이조드 충격시험기를 사용하였고 열적 특성을 조사하기 위해 TGA와 DSC를 사용하였다. 전자현미경(SEM)을 이용한 복합재의 파단면 관찰 결과 MAPP가 폴리프로필렌/셀룰로오스 계면결합 향상에 효과적인 것으로 나타났다. 셀룰로오스 함량 대비 MAPP의 함량이 3 wt%일 때 복합재의 인장강도와 인장탄성률이 최고치를 나타냈다. 셀룰로오스의 함량이 증가할수록 복합재의 충격강도는 감소하는 반면 인장강도와 인장탄성률은 증가하였다.

Keywords: polypropylene; cellulose; composite; maleic anhydride-grafted polypropylene; physical properties.

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 2015; 39(1): 130-135

    Published online Jan 25, 2015

  • Received on Jun 24, 2014
  • Accepted on Aug 6, 2014