Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Soda Pulp Properties from Corn Stalk as Raw Material

옥수수 줄기를 원료로 제조한 소다 펄프의 특성

  • Song, Woo-Yong (Department of Wood and Paper Science, Chungbuk National University) ;
  • Lee, Kyu-seong (Department of Wood and Paper Science, Chungbuk National University) ;
  • Lee, Jai-Sung (Department of Wood and Paper Science, Chungbuk National University) ;
  • Shin, Soo-Jeong (Department of Wood and Paper Science, Chungbuk National University)
  • 송우용 (충북대학교 목재종이과학과) ;
  • 이규성 (충북대학교 목재종이과학과) ;
  • 이재성 (충북대학교 목재종이과학과) ;
  • 신수정 (충북대학교 목재종이과학과)
  • Received : 2015.11.08
  • Accepted : 2015.12.18
  • Published : 2015.12.30
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Abstract

Corn stalk is the lignocellulosic biomass, which remain as leftover after harvesting. To use the corn stalk as raw material for paper industry, soda pulping was applied. In chemical compositional analysis, extractive contents of corn stalk (45.1%) was higher than hardwood. With corn stalk pith, soda pulp yield was 25.3% at 10.6 Kappa number, but 39.5% yield with 14.8 Kappa number for corn stalk rind. Higher extractives content in pith is one of the reason for lower pulp yield than rind. Pith pulp fibers had higher fines content than rind pulp. Pith parenchyma cell was removed as fines during pulping or washing process, which caused the lower yield. To use the corn stalks as a raw material for paper making, de-pith process is essential for higher pulp yield and longer pulp length.

Keywords

References

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