Effect of Ultrasonic-assisted Cold Caustic Extraction on the Properties of CTMP Poplar Fibers

Qianyu Sun; Guihua Yang; Jiachuan Chen; Ming He; Sipeng Niu

doi:10.7584/JKTAPPI.2017.08.49.4.5

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자료유형: 학술저널

저자정보: Qianyu Sun (Qilu University of Technology) Guihua Yang (Qilu University of Technology) Jiachuan Chen (Qilu University of Technology) Ming He (Qilu University of Technology) Sipeng Niu (Qilu University of Technology)

저널정보: 한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제49권 제4호(통권 제177호)

발행연도: 2017.8

수록면: 5 - 15 (11page)

DOI: 10.7584/JKTAPPI.2017.08.49.4.5

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연구주제

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연구배경

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연구방법

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연구결과

초록· 키워드

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Chemithermo-mechanical pulp (CTMP) has been widely utilized in papermaking industry because of its high yield. However, the poor strength properties arising from the high contents of hemicellulose and lignin have limited its applications. In this study, ultrasonicassisted cold caustic extraction (CCE) on hemicellulose removal was applied to ascertain its influence on the properties of CTMP. It was found to have a positive effect on hemicellulose removal and resultant pulp properties. At the same alkali concentration (3 wt%), hemicellulose removal and Canadian Standard Freeness (CSF) in ultrasonic-assisted CCE (360 W, 10 min) increased 53.4% and 9.6%, respectively. Ultrasonic-assisted CCE reduces alkali concentration from 5 wt% to 2 wt% to obtain similar hemicelluloses removal, whereas the pulp yield at 2 wt% NaOH was higher than that of CCE alone at 5 wt% NaOH. In addition, at the same alkali concentration (3 wt%), the tensile index, bursting index and tearing index of CTMP in ultrasonic-assisted CCE (120 W, 10 min) increased by 12.7%, 11.34% and 3.0%, respectively. Ultrasonic-assisted CCE enhanced the fibrillation of fibers at optimal conditions, as determined by SEM.

#Chemithermo-mechanical pulp #ultrasonic-assisted cold caustic extraction #hemicellulose removal #pulp properties

참고문헌 (30)

참고문헌 신청

Ji, X. X., Chen, J. C., Yang, G. H., Wang, J. F., and Wang, L. Y., Effect on xylanase from Leveking in bleaching soda-AQ pulp of fastgrowing poplar, Advanced Materials Research 396-398:1498-1501 (2011). Liu, Y. Y., Liu, M. R., Li, H. L., Li, B. Y., and Zhang, C. H., Characteristics of high yield pulp fibers by xylanase treatment, Cellulose 23(5):1-9 (2016). Hou, Q., Wang, Y., Liu, W., Liu, L., Xu, N., and Li, Y., An application study of autohydrolysis pretreatment prior to poplar chemi-ther- momechanical pulping, Bioresource Technology 169(5):155-161 (2014). Yang, G. H., Lucia, L. A., Chen, J. C., Cao, X. D., and Liu, Y., Effects of enzyme pretreatment on the beatability of fast-growing poplar APMP pulp, BioResources 6(3):2568-2580 (2011). Yang, Q., Zhan, H., Wang, S., Li, K., and Fu, S., Bio-modification of eucalyptus chemithermomechanical pulp, Frontiers of Chemical Engineering in China 2(1):28-33 (2008).

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