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Synthesis and Characteristics of Cationic Polyurethane-Acrylates as a Retention Aid  

Han, Chul (Department of Chemical Eng., Chosun University)
Kim, Doo-Won (ShinJin Chem. Ind Co. Ltd.)
Yoon, Doo-Soo (Department of Polymer Sci. & Eng., Chosun University)
Kim, Sun (Department of Food Science, Chosun College of Science & Technology)
Hong, Wan-Hae (Department of Chemical Eng., Chosun University)
Kim, Jung-Gyu (Department of Chemical Eng., Chosun University)
Publication Information
Elastomers and Composites / v.39, no.3, 2004 , pp. 209-216 More about this Journal
Abstract
Two types of polyurethane-acrylate polymer were synthesized by reaction of 2-hydroxyethyl methacrylate(HEMA), acrylamide(AA), and polyurethane prepolymer. Water-soluble cationic polyurethane/acrylate retention aids were prepared by using polyurethane-acrylate, benzyl chloride and distilled water. The retention, drainage and strength properties of the retention aids were investigated. The retention of cationic polyurethane/acrylate type retention aids maintained around 70 % regardless of nm. COD value of white water was much reduced by adding the retention aids to it. Drainage property was also improved by addition of the retention aids. In addition, specific compression strength of the paper was improved a little by addition of the retention aids. PU-HEMA type showed better performance than PU-AA in terms of compression strength of the paper.
Keywords
water-soluble cationic polyurethane-acrylate retention aids; degree of retention; COD; drainage property; specific compression;
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