| CaCO3 첨가법에 따른 재생 ONP의 특성변화 |
| 안영준, 남성영1, 엄남일1, 안지환1, 한춘 |
광운대학교 화학공학과
1한국지질자원연구원 광물자원연구본부 |
| Differences in Characteristics of Recycled ONP for CaCO3 Adding Techniques |
| Young-Jun Ahn, Seong-Young Nam1, Nam-Il Um1, Ji-Whan Ahn1, Choon Han |
Department of Chemical Engineering, Kwangwoon University
1Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM) |
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| ABSTRACT |
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In order to improve the refresh rate of old newspaper(ONP), PCC shape-controlling experiments were carried out. The effect of a PCC polymorph on improving the quality of old newspaper was studied for a transformation from waste paper to eco-friendly paper. The synthesis of PCC consists of an in-situ process and a loading process to enhance the refresh rate of old newspaper. The characteristics between the in-situ process and the loading process could be analysed by SEM analyses of coated fiber surfaces. The retention rate ranges from 65 to 67% after the application of the in-situ process, and that after the loading process ranges from 55 to 58%. The retention rates thus show a difference of about 7-10%. In addition, the whiteness and ERIC characteristics of the in-situ process gave more efficient results than those of the loading process. |
| Key words:
Whiteness, Old news paper, Precipitated calcium carbonate |
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