期刊
CARBOHYDRATE POLYMERS
卷 229, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2019.115434
关键词
Cationic cellulose nano-fibers (CCNF); Flocculation; Bridging effect; Wet web strength; Dewatering rate
资金
- National Natural Science Foundation of China [31670589]
- National Key Research and Development Plan [2017YFB0307902]
- Natural Science Foundation of Tianjin [19JCQNJC05400]
- Basic Scientific Research Operation Fund of Tianjin University of Science and Technology [000040186]
- Research Fund of Tianjin Key Laboratory of Pulp Paper [201806]
- Research Fund of Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology, Nanjing Forestry University [KL201914]
- Research Fund from Zhejiang JingXing Paper Joint Stock Co., Ltd.
In recent years, cellulose nano-fibers (CNF) have been regarded as renewable, promising reinforcer to enhance the strength property of paper products. In this paper, the roles of cationic cellulose nano-fibers (CCNF) as versatile flocculants of wood pulp and fines in pulp slurry for high wet web performance have been studied. It was found that CCNF can induce significantly flocculation (CCNF-Fines complex) in pulp slurries. The mechanical properties of wet web can also be improved by the addition of CCNF. The study demonstrated that CCNF can act as effective flocculants of fines and form CCNF-Fines complex for improved wet-web strength, in addition, CCNF has little effect on the dewatering rate of wet-web. CCNF is more beneficial to the wet web performance when it is in higher charge density. The research paves a way to further study the comprehensive application of CCNF in the wet-web making process for high performance.
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