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| THE APPLICATION OF CATIONIC POLYACRYLAMIDE AS DRAINAGE AND RETENTION AIDS | |
| 作者姓名： | Jin Wang Kefu Chen Fushan Chen Chuanshan ZhaoRendang Yang |
| 作者单位： | Jin Wang1 Kefu Chen1 Fushan Chen2 Chuanshan Zhao3Rendang Yang1(1.State Key Lab of Pulp & Paper Engineering，South China University of Technology，Guangzhou，510640，China)(2. Tianjin University of Science & technology，Tianjin，300222; 3. Shandong Institute of Light Industry，Jinan，250100，China) |
| 摘 要： | INTRODUCTIONIn recent years, with the rapid development of paper-making technology1], such as improvement of pa-per-machine speed, extensive use of high yield and recycling pulp, and more closed white water systems, the environment of papermaking has changed greatly and this has brought many problems, Such as water temperature increasing and water quality becoming worse, large amount of fines in pulp, and more and more aninonic trash in pulp and water. These causes drainability of pulp a… |
THE APPLICATION OF CATIONIC POLYACRYLAMIDE AS DRAINAGE AND RETENTION AIDS |
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| Jin Wang,Kefu Chen,Fushan Chen,Chuanshan ZhaoRendang Yang.THE APPLICATION OF CATIONIC POLYACRYLAMIDE AS DRAINAGE AND RETENTION AIDS[J].Journal of Tianjin University of Science & Technology,2004,19(Z1). | |
| Authors: | Jin Wang Kefu Chen Fushan Chen Chuanshan Zhao Rendang Yang |
| Institution: | 1. State Key Lab of Pulp & Paper Engineering, South China University of Technology, Guangzhou,510640, China 2. Tianjin University of Science & technology, Tian-jin, 300222 3. Shandong Institute of Light Industry,Jinan, 250100, China |
| Abstract: | Cationic polyacrylamide(CPAM) which was prepared through complex initiation system in laboratory and cationic polyacrylamide(Ciba) were used as retention and drainage aids for bleached wheat straw pulp. The influences of (polydiallyldimethlammonium chloride) PDADMAC and PDADMAC/CPAM on Zeta potential and drainability of pulp was investigated. The dual drainage and retention systems such as CPAM/modified bentonite, CPAM/colloidal SiO2, as well as their comparison between the two systems were discussed, and the optimal dosages of additives were determined. The results showed that: the complex systems can further enhance filler retention, drainability of pulp and strength properties of paper. |
| Keywords: | Cationic polyacrylamide Zeta potential Filler retention Drainability |
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