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논문 기본 정보

자료유형
학술저널
저자정보
황임정 (강원대학교) 김진모 (강원대학교) 이용규 (강원대학교) 원종명 (강원대학교)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제49권 제5호(통권 제178호)
발행연도
2017.10
수록면
86 - 96 (11page)
DOI
10.7584/JKTAPPI.2017.10.49.5.86

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To evaluate the feasibility of NFC production using white ledger as a raw material, deinking and ash removal were carried out and fibrillation was performed with a grinder. In order to compare the fibrillation characteristics of white ledger, the fibrillation of HwBKP and SwBKP was performed in the same manner. Especially, white ledger is expected to be difficult to fibrillate by hornification phenomenon, so it is pretreated with 0.5, 1, 3 and 5% alkali solutions and then fibrillated. White ledger was found to be harder to fibrillate than HwBKP and SwBKP, and when pretreated with a low concentration alkali solution of up to 5%, fibrillation was remarkably improved. FTIR analysis showed no change in absorption band due to fibrillation and alkali pretreatment, and no apparent change in crystallinity and hydrogen bond index was observed. The CED polymerization degree of NFCs decreased with the progress of fibrillation, but the effect of alkali pretreatment was not clear. The average fiber length of NFC was decreased by fibrillation. In the case of HwBKP and SwBKP, the alkaline pretreatment effect on the average fiber length change was not clear. However, in the case of white ledger, the average fiber length was significantly decreased in the early stage of fibrillation and the difference from the untreated case was decreased as the fibrillation progressed. The relative specific energy consumptions in producing NFC at The relative specific energy consumptions in producing NFC at the same fibrillation level were 17.8 Wh/g for HwBKP, 25.1 Wh/g for SwBKP, and 37.4 Wh/g for white ledger, respectively. The specific energy consumption of the white ledger was reduced to 18.1 Wh/g when it is pretreated with 3-5% alkali solution.

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ABSTRACT
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2018-586-001497494