Journal
CARBOHYDRATE POLYMERS
Volume 136, Issue -, Pages 820-825Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.09.069
Keywords
Cellulose nanofibrils; Disk mill; Filler-fibril composite; Paper strength; Calcium carbonate filler; Retention
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Funding
- Energy Efficiency and Resources division of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Ministry of Knowledge Economy, Republic of Korea [2013201010211B]
- Korea Evaluation Institute of Industrial Technology (KEIT) [2013201010211B] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A new concept of composite filler was developed by using cellulose nanofibrils (CNF), precipitated calcium carbonate (PCC) and cationic starch (C-starch). In this study, cellulose nanofibrils were utilized in two different ways: a PCC-CNF composite filler and a papermaking additive in sheet forming. The aim was to elucidate their effects on flocculation, filler retention and the strength and optical properties of handsheets. The highest filler retention was obtained by using the PCC-CNF composite filler in paper sheets. The paper filled with the composite fillers had much higher bursting and tensile strengths than conventional PCC loading. It was also found that the paper prepared with PCC-CNF composite fillers became denser with increasing the filler content of paper. (C) 2015 Elsevier Ltd. All rights reserved.
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