지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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이용수
초록· 키워드
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Bleached chemithermomechanical pulp (BCTMP) was produced from CTMP of Betula maximowicziana Regel by two staged ozone-hydrogen peroxide bleaching in order to improve the optical properties of high yield pulp. This pulp was used for the evaluation of optical properties improvement, chemical characteristics of lignin in fiber and the relationship between lignin and optical properties in fiber cell wall.
Hydrogen peroxide treatment improved the brightness, but the post color number (PC No.). There was little improvement on optical properties by ozone treatment, but this could be improved more by using two staged ozone-hydrogen peroxide bleaching.
The hydrogen peroxide treatment did not make any change on chemical characteristics of lignin in cell wall, but by ozone treatment, it was found that the non-aromatic conjugated structure was existed in the surface of cell wall, but this could be removed by hydrogen peroxide treatment in two staged ozone-hydrogen peroxide treatment. Therefore. the optical properties was significantly improved. due to the removal of non-:aromatic conjugated structure.
Hydrogen peroxide treatment improved the brightness, but the post color number (PC No.). There was little improvement on optical properties by ozone treatment, but this could be improved more by using two staged ozone-hydrogen peroxide bleaching.
The hydrogen peroxide treatment did not make any change on chemical characteristics of lignin in cell wall, but by ozone treatment, it was found that the non-aromatic conjugated structure was existed in the surface of cell wall, but this could be removed by hydrogen peroxide treatment in two staged ozone-hydrogen peroxide treatment. Therefore. the optical properties was significantly improved. due to the removal of non-:aromatic conjugated structure.
목차
Abstract
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Literature Cited
참고문헌 (9)
참고문헌 신청
[학술지(정기간행물)] - / 1988 / A Study of CTMP from Hardwood Characterization of Pulps Produced by CTMP-O3 Process 42 (10) : 53 ~ 62
[학술지(정기간행물)] - / 1993 / Relationships between the Lignin Distribution on the High Yield Fiber and Physical Properties : 34 ~ 41
[학술지(정기간행물)] - / 1990 / A Study Improvement of the Hardwood Chemithermomechanical Pulp Research Bulletins of the College Experiment Forests Faculty of Agriculture : 405 ~ 424
[학술지(정기간행물)] - / 1972 / Sequential treatment of mechanical pulps at high consistency with H2O2 and O3-Effect on pulp brightness and strength Pulp and Paper Magazine of CANADA : 206 ~ 209
[학술지(정기간행물)] - / 1977 / Ozone treatment of mechanical pulp : 217 ~ 232
[학술지(정기간행물)] - / 1993 / Relationships between the Lignin Distribution on the High Yield Fiber and Physical Properties : 34 ~ 41
[학술지(정기간행물)] - / 1990 / A Study Improvement of the Hardwood Chemithermomechanical Pulp Research Bulletins of the College Experiment Forests Faculty of Agriculture : 405 ~ 424
[학술지(정기간행물)] - / 1972 / Sequential treatment of mechanical pulps at high consistency with H2O2 and O3-Effect on pulp brightness and strength Pulp and Paper Magazine of CANADA : 206 ~ 209
[학술지(정기간행물)] - / 1977 / Ozone treatment of mechanical pulp : 217 ~ 232
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