| APPLICATION OF CATIONIC STARCH BY DRY-PROCESS AS ANIONIC CHARGE NEUTRALIZING AGENTS TO IMPROVE FILLER RETENTION |
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| 作者姓名： | Fushan Chen Qijie Chen Gaosheng Wang |
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| 作者单位： | Tianjin University of Science and Technology，Tianjin，300222 |
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| 摘 要： | Cationic starch, because of containing positive charge, can bond with fibers, fines and fillers with negative charge. So it is widely used in wet end as retention aids, drainage or strengthening aids. Generally, the degree of substitution (DS) of cationic starch which is currently used in papermaking industry is 0.01~0.07, belonging to low DS. With the view of finding new functions of cationic starch in papermaking industry, the current work is to study the preparation process of cationic st…
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APPLICATION OF CATIONIC STARCH BY DRY-PROCESS AS ANIONIC CHARGE NEUTRALIZING AGENTS TO IMPROVE FILLER RETENTION |
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| Fushan Chen,Qijie Chen,Gaosheng Wang.APPLICATION OF CATIONIC STARCH BY DRY-PROCESS AS ANIONIC CHARGE NEUTRALIZING AGENTS TO IMPROVE FILLER RETENTION[J].Journal of Tianjin University of Science & Technology,2004,19(Z1). |
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| Authors: | Fushan Chen Qijie Chen Gaosheng Wang |
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| Abstract: | This paper deals with the preparation of cationic starch with high degree of substitute by dry-process.The corn starch and the alkali catalyst are mixed in the mixer, then added the cationic etherifying agent (3-chloro-2-hydroxypropyltrimethylammonium chloride). The reacting time is for 5 hours at the temperature of 70℃. The cationic starch with high degree of substitution is used as anionic charge neutralizing agents to improve filler retention in wet-end section ofpapermaking machine. |
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| Keywords: | cationic starch high degree of substitution etherifying agent dry-process filler retention |
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