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2021 Vol.53, Issue 4
Characteristics of Hybrid Calcium Carbonate Prepared from Ground and Precipitated Calcium Carbonate

경탄과 중탄을 적용한 하이브리드 탄산칼슘의 특성

Sang Yoon Kim1
,
Dong Suk Kang1
,
Yung Bum Seo2†
김상윤 1
,
강동석 1
,
서영범 2†
1Dept. of Bio-based Materials, College of Agriculture and Life Science, Chungnam National University
2Dept. of Bio-based Materials, College of Agriculture and Life Science, Chungnam National University
1충남대학교 농업생명과학대학 환경소재공학과, 학생
2충남대학교 농업생명과학대학 환경소재공학과, 교수
†Corresponding author: E-Mail: ybseo@cnu.ac.kr (Address: Dept. of Bio-based Materials, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, Republic of Korea)
30 August 2021. pp. 5-12
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Abstract

Hybrid calcium carbonate (HCC), which is prepared by preflocculation of two components such as ground calcium carbonate (GCC) and calcium oxide in the first step, and next, by injecting carbon dioxide into the preflocculated flocs, is known to increase the bulk, stiffness, and tensile strength of printing paper greatly and simultaneously when compared with GCC. Post-calcium carbonate (pHCC) is different from HCC in that calcium oxide is added to the preflocculated single component, GCC, and carbon dioxide is injected later. Handsheets made of pHCC and HCC showed very similar properties. When the GCC was replaced with precipitated calcium carbonate (PCC) in the preparation of HCC and pHCC, the bulk of the paper increased further, but bonding properties were lowered. By selecting GCC or PCC and by controlling their proportion in the preparation of HCC and pHCC, papermakers may produce papers with desired physical properties. The possibility of extensive replacement of wood fibers by the use of HCC and pHCC while satisfying essential paper quality, and the effect of storage time of the fillers, is also discussed.

Keywords
Hybrid calcium carbonate (HCC)
post HCC (pHCC)
precipitated calcium carbonate (PCC)
ground calcium carbonate (GCC)
storage time
bulk
tensile strength
References

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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 53
  • No :4
  • Pages :5-12
  • Received Date : 2021-07-10
  • Revised Date : 2021-08-03
  • Accepted Date : 2021-08-05
  • DOI :https://doi.org/10.7584/JKTAPPI.2021.08.53.4.5
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