Zobrazeno 1 - 10 of 26 pro vyhledávání: '"Kyujeong Sim"'
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Akademický článek
Improvements in pulp properties by alkali preextraction and subsequent kraft pulping with controlling H-factor and alkali charge
Autor: Kyujeong Sim, Hye Jung Youn, Hwi Cho, Heenae Shin, Hak Lae Lee
Publikováno v: BioResources, Vol 7, Iss 4, Pp 5864-5878 (2012)
The objective of this study was to determine the processing conditions for obtaining improved pulp properties from the kraft pulping process with an alkali pre-extraction stage. Before the kraft pulping, a pre-extraction of hemicelluloses from mixed
Externí odkaz: https://doaj.org/article/3a298d515f474619a0a985c17c805305
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5
Preparation of porous sheets with high mechanical strength by the addition of cellulose nanofibrils
Autor: Hye Jung Youn, Kyujeong Sim
Publikováno v: Cellulose. 23:1383-1392
Porous sheets with high mechanical strength were prepared with natural pulp fibers (hardwood and softwood bleached kraft pulp) and polyethylene terephthalate (PET) by adding cellulose nanofibrils (CNF) through a wet-laid forming method. The structure
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f99f19dbdb72d5620e6d475fe173f527
https://doi.org/10.1007/s10570-016-0865-6
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6
Flocculation behavior of cellulose nanofibrils under different salt conditions and its impact on network strength and dewatering ability
Autor: Kyujeong Sim, Hyeyoon Lee, Hye Jung Youn, Jegon Lee
Publikováno v: Cellulose. 22:3689-3700
Flocculation of cellulose nanofibrils (CNF) was induced by charge neutralization with different types and concentrations of salt, and its effects on the network strength and dewatering ability of the CNF suspension were investigated. Aggregation of t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::079aa1a67313f189d96ae705ad2bfa08
https://doi.org/10.1007/s10570-015-0784-y
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7
Fold Cracking of High Grammage Coated Paper Depending on Pulp Composition and Structure of Base Paper
Autor: Hye Jung Youn, Seung Uk Yeu, Kyudeok Oh, Yong Min Lee, Hak Lae Lee, Kyujeong Sim
Publikováno v: Journal of Korea Technical Association of The Pulp and Paper Industry. 47:38-45
Fold cracking is one of quality troubles of coated papers. In this study, the fold cracking of high grammage 2(250 g/m) coated paper made with the different pulp composition and layer structure of base paper was investigated. The single layered, high
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e795f2bd76b0b92224d3e04f9ac4bd2c
https://doi.org/10.7584/ktappi.2015.47.4.038
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8
Effect of Ground Calcium Carbonate Modified by Washless Multilayering of Polyelectrolytes on Paper Quality
Autor: Jegon Lee, Wanhee Im, Hak Lae Lee, Hye Jung Youn, Kyujeong Sim
Publikováno v: Journal of Korea Technical Association of The Pulp and Paper Industry. 47:115-126
In this study, we investigated influence of ground calcium carbonate (GCC) modified by washless multilayering of polyelectrolytes on paper quality. Three layers of polyelectro-lytes (cationic starch/anionic polyacrylamide/cationic starch) were formed
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b032b740d750370a3ba3659be18be1c0
https://doi.org/10.7584/ktappi.2015.47.4.115
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