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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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The effects of alkaline treatment on the WRV, crystalline structure and sheet structure of softwood and hardwood bleached kraft pulp were investigated. Sodium hydroxide and sodium carbonate were used as chemicals for alkaline treatment and two levels of alkali dosage (5%, 10%) were applied respectively. Alkali treated and untreated pulp were refined to three levels (550, 450 and 350 mL CSF). WRV of the alkali treated pulps depended on the alkaline type and concentration. It was found that the crystalline structures of softwood and hardwood pulp were not changed by refining. Sodium carbonate and lower concentration of sodium hydroxide treatment did not caused any modification of cellulose crystalline structure, while higher concentration of sodium hydroxide treatment caused the partial modification of cellulose crystalline structure. Alkaline treatment of hardwood bleached kraft pulp led to the shrinkage of fiber diameter and bulky structure of sheet. Alkaline treatment of softwood bleached kraft pulp did not cause the significant change in fiber shrinkage and bulk of sheet.
목차
Abstract
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
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참고문헌 (9)
참고문헌 신청
1. [학술지(정기간행물)] - Cha, J.I / 1983 / Effect of alkali treatment on the properties of pine groundwood pulp / Journal of Korea TAPPI 15 (2) : 24 ~ 30
2. [학술지(정기간행물)] - Zugenmaier, P / 2001 / Conformation and packing of various crystalline cellulose fibers / Progress in Polymer Science 26 (9) : 1341 ~ 1417
3. [학술지(정기간행물)] - Jähn, A / 2002 / Characterization of alkali treated flax fibers by means of FT Raman spectroscopy and environmental scanning electron microscopy / Spectrochimica Acta, Part A. Molecular and Biomolecular Spectroscopy 58 (10) : 2271 ~ 2279
4. [학술지(정기간행물)] - Dinand, E / 2002 / Mercerization of primary wall cellulose and its implication for the conversion of cellulose I→cellulose II / Cellulose 9 : 7 ~ 18
6. [학술지(정기간행물)] - Jähn, A / 2002 / Characterization of alkali treated flax fibres by means of FT Raman spectroscopy and environmenral scanning electron microscopy / Spectrochimica Acta Part A 58 : 2271 ~ 2279
2. [학술지(정기간행물)] - Zugenmaier, P / 2001 / Conformation and packing of various crystalline cellulose fibers / Progress in Polymer Science 26 (9) : 1341 ~ 1417
3. [학술지(정기간행물)] - Jähn, A / 2002 / Characterization of alkali treated flax fibers by means of FT Raman spectroscopy and environmental scanning electron microscopy / Spectrochimica Acta, Part A. Molecular and Biomolecular Spectroscopy 58 (10) : 2271 ~ 2279
4. [학술지(정기간행물)] - Dinand, E / 2002 / Mercerization of primary wall cellulose and its implication for the conversion of cellulose I→cellulose II / Cellulose 9 : 7 ~ 18
6. [학술지(정기간행물)] - Jähn, A / 2002 / Characterization of alkali treated flax fibres by means of FT Raman spectroscopy and environmenral scanning electron microscopy / Spectrochimica Acta Part A 58 : 2271 ~ 2279
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