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자료유형
학술저널
저자정보
전수연 (국민대학교) 박정윤 (국민대학교) 김형진 (국민대학교)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제48권 제5호(통권 제172호)
발행연도
2016.10
수록면
68 - 75 (8page)
DOI
10.7584/JKTAPPI.2016.10.48.5.68

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In papermaking industry, inorganic fillers such as CaCO3, produce some positive functions in high opacity and brightness, good surface smoothness, printability and dimensional stability of paper. They also provide the relative savings of production cost. However, fillers are also the sources of the negative effects such as the loss of strength of paper and the retention problem due to the poor retention mechanism. They also tend to be distributed unevenly in the Z-direction of paper. Therefore, much research efforts were focused on the modification and pre-flocculation of fillers to solve the retention problem and the strength reduction by using GCC (grounded calcium carbonate) and PCC (precipitated calcium carbonate).
In this paper, PCC was designed to form the structured PCC by using PF1 and PF2 as pre-flocculation agents. Different retention systems were applied to examine the optimum conditions for the high retention mechanism of the fillers with the structured PCC and polyelectrolytes such as C-PAM (cationic polyacrylamide), C-starch and glyoxal as retention agents. To evaluate the optimum retention system, the retention ratio of PCC was measured by comparing the turbidity of RDA (retention and drainage analyzer) filtrate, air permeability (FAP) of the wet-web indicates dewatering performance. Lastly, the formation index of handsheet was evaluated. The lower values of the three factors (i.e., the turbidity of RDA filtrate, FAP of the wet handsheet and the formation index of handsheet) indicated that the structured PCC has provided the more favorable retention of the fillers.

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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-0101-2017-586-001635307