Soda Pulp Properties from Corn Stalk as Raw Material

Woo-Yong Song; Kyu-seong Lee; Jai-Sung Lee; Soo-Jeong Shin

doi:10.7584/ktappi.2015.47.6.073

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Soda Pulp Properties from Corn Stalk as Raw Material 옥수수 줄기를 원료로 제조한 소다 펄프의 특성

30 December 2015. pp. 73-80

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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 hard-wood. 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

Corn stalk

soda pulp

Kappa number

morphological properties

References

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Information

Publisher :Korea Technical Association of The Pulp and Paper Industry
Publisher(Ko) :한국펄프종이공학회
Journal Title :Journal of Korea TAPPI
Journal Title(Ko) :펄프종이기술
Volume : 47
No :6
Pages :73-80
Received Date : 2015-11-08
Revised Date : 2015-12-16
Accepted Date : 2015-12-18
DOI :https://doi.org/10.7584/ktappi.2015.47.6.073

Journal of Korea TAPPI ISSN:0253-3200(Print) 펄프종이기술

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Literature Cited