Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
권호 표지

Processability of Bio-composites Applied Polyolefin to Recycled Fiberboard Flour

Polyolefin계 고분자에 섬유판 가공 부산물을 적용한 환경 친화형 바이오복합재의 가공성

  • Choi, Seung-Woo (Lab. of Adhesion & Bio-Composites, Major in Environmental Materials Science, College of Agriculture & Life Sciences, Seoul National University) ;
  • Kim, Hee-Soo (Lab. of Adhesion & Bio-Composites, Major in Environmental Materials Science, College of Agriculture & Life Sciences, Seoul National University) ;
  • Lee, Byoung-Ho (Lab. of Adhesion & Bio-Composites, Major in Environmental Materials Science, College of Agriculture & Life Sciences, Seoul National University) ;
  • Kim, Hyun-Joong (Lab. of Adhesion & Bio-Composites, Major in Environmental Materials Science, College of Agriculture & Life Sciences, Seoul National University) ;
  • Ahn, Sye-Hee (Dept. of Forest Resources, College of Life & Environment, Daegu University)
  • 최성우 (서울대학교 산림과학부 환경재료과학전공 바이오복합재료 및 접착과학 연구실) ;
  • 김희수 (서울대학교 산림과학부 환경재료과학전공 바이오복합재료 및 접착과학 연구실) ;
  • 이병호 (서울대학교 산림과학부 환경재료과학전공 바이오복합재료 및 접착과학 연구실) ;
  • 김현중 (서울대학교 산림과학부 환경재료과학전공 바이오복합재료 및 접착과학 연구실) ;
  • 안세희 (대구대학교 생명환경대학 산림자원학과)
  • Received : 2005.06.23
  • Accepted : 2005.08.31
  • Published : 2005.11.25
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Abstract

This study was conducted to evaluate the application of a bio-composite made by the addition recycled fiber board flour as filler. Recycled fiber board (high density fiber board, HDF) flour was added to polyolefin polymer low density polyethylene (LDPE) and polypropylene (PP) for the preparation of bio-composite materials. The mechanical properties and processability of the recycled HDF flour filled LDPE and recycled HDF flour filled PP bio-composites were then measured and compared to those of wood flour (WF) and rice-husk flour (RHF) filled LDPE and PP bio-composites, respectively. The tensile and impact strengths of the recycled HDF flour filled LDPE and PP bio-composites had similar mechanical properties to those of the WF and RHF filled LDPE and PP bio-composites. To measure the processability, torques of the bio-composites were also measured. The torques of the HDF flour filled LDPE and PP bio-composites were lower than those of the WF and RHF filled polyolefin (PP and LDPE) bio-composites with a filler loading of 30 wt.%. This result showed definite processability, which was not related with the distribution of the particle size of the material added. The recycled fiber board flour filled bio-composites showed applicability as substitutes for the bio-composites currently used in the bio-composites industry.

본 연구는 섬유판 가공 부산물 분말을 충전제로 첨가한 바이오복합재를 제조하여 그 적용가능성을 평가하기 위하여 수행하였다. 섬유판 가공부산물인 고밀도섬유판(high density fiber board, HDF) 부산물 분말을 polyolefin계 고분자인 low-density polyethylene (LDPE)과 polypropylene (PP)에 첨가하여 바이오복합재를 제조하였다. 제조된 바이오복합재를 이용하여 기계적 성질과 가공성을 측정하였다. 이후 각각 목분(wood flour, WF)과 왕겨분말(rice-husk flour, RHF)을 LDPE와 PP에 충전제로 첨가한 바이오복합재와도 그 기계적 성질과 가공성을 비교하였다. HDF 분말-LDPE 바이오복합재와 HDF 분말-PP 바이오복합재의 인장강도 및 충격강도는 각각 목분이나 왕겨분말을 LDPE나 PP에 충전제로 첨가한 바이오복합재와 비슷한 기계적 강도값을 나타내었다. 바이오복합재의 가공성은 토크를 측정하였는데, HDF 분말-LDPE 바이오복합재와 HDF 분말-PP 바이오복합재는 동일한 기질고분자에 목분이나 왕겨분말을 첨가한 바이오복합재보다 낮은 값을 보였다. 또한, HDF 분말-LDPE 바이오복합재 및 HDF 분말-PP 바이오복합재는 HDF 분말의 입자분포와 상관없이 일정한 가공성을 보였다. 따라서 섬유판 가공 부산물이 첨가된 바이오복합재를 현재 바이오복합재 산업에서 이용되고 있는 바이오복합재를 대처하여 적용할 수 있다고 볼 수 있다.

Keywords

Acknowledgement

Supported by : 교육인적자원부

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