| Autor: |
Hashimoto, Kazuki, Suzuki, Kyoji, Kamaya, Yasushi |
| Zdroj: |
Journal of Wood Science; June 2004, Vol. 50 Issue: 3 p271-274, 4p |
| Abstrakt: |
To improve the wet-end properties of linear-type copolymerized polyacrylamide (co-PAM), three types of cationic co-PAM were prepared by graft copolymerization, and their effects on the drainage, paper strength, and filler retention were investigated. Of the three synthesized terpolymers, dextrin-acrylamide-2-(dimethylamino)-ethylmethacrylate graft terpolymers (Dex-graft-(AM-DMAEMA)) moderately improved the wet-end properties compared with the other two graft terpolymers prepared. Notably, addition of 0.1% (on dry pulp) Dex-graft-(AM-DMAEMA) showed high filler retention of 78%. All of the prepared graft terpolymers showed equal or improved wet-end properties compared with acrylamide-2-(dimethylamino)ethylmethacrylate copolymer (AM-DMAEMA), which is a standard cationic co-PAM of similar moleculer weight. |
| Databáze: |
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| Externí odkaz: |
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