지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 1999.6
- 수록면
- 375 - 380 (6page)
이용수
초록· 키워드
오류제보하기
In order to improve the optical properties of high yield pulp, bleached chemi-thermo-mechanical pulp (BCTMP) was produced from CTMP of Betula maximowicziana Regel by two staged ozone-hydrogen peroxide bleaching. This pulp was used for the evaluation of the improvement of optical properties, chemical characteristics of lignin in fiber, and the relationship between lignin and optical properties in fiber cell wall.
By hydrogen peroxide treatment, the brightness was improved, but the post color number (PC No.) was not. There was little improvement on optical properties by ozone treatment, but this could be solved by using two staged ozone-hydrogen peroxide bleaching.
The hydrogen peroxide treatment die! 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.
By hydrogen peroxide treatment, the brightness was improved, but the post color number (PC No.) was not. There was little improvement on optical properties by ozone treatment, but this could be solved by using two staged ozone-hydrogen peroxide bleaching.
The hydrogen peroxide treatment die! 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
INTRODUCTION
MATERIALS AND RESULTS
RESULT and DISCUSSION
CONCLUSION
REFERENCES
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