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| Synthesis and Application of Poly-DADMAC-AM |
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| DOI：10.11980/j.issn.0254-508X.2013.08.003 |
| Key Words:PDA intrinsic viscosity retention and drainage |
| Fund Project:本课题由“十二五”国家科技支撑项目资助（2011BAC11B04）。 |
| Author Name | Affiliation | | 刘廷志 | 天津科技大学材料科学与化学工程学院,天津市制浆造纸重点实验室,天津,300457 | | 刘 媛 | 天津科技大学材料科学与化学工程学院,天津市制浆造纸重点实验室,天津,300457 | | 李鸿凯 | 天津科技大学材料科学与化学工程学院,天津市制浆造纸重点实验室,天津,300457 | | 郑开杨 | 天津科技大学材料科学与化学工程学院,天津市制浆造纸重点实验室,天津,300457 |
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| Abstract:Poly-DADMAC-AM (PDA) was synthesized by aqueous phase polymerization technique using DADMAC and AM as raw materials. The retention and drainage performances of PDA were tested on OCC pulp. The optimal polymerization conditions were: m(DADMAC)∶m(AM)=3∶1, w(NH4S2O8)∶w(DADMAC+AM)=0.33%, the times of polymerization and ripening were 3 hours but the temperatures of polymerization and ripening were 45℃and 60℃ respectively. The molecular weight of the product was about 1.5 million at the optimal conditions. The single pass retention increased from 71.0% to 79.7% and the beating degree reduced from 50°SR to 23°SR while the dosage of the PDA was 0.10% and OCC furnish were used for the testing of the retention and drainage performance. Meanwhile, tenside stiffness and tear strength of paper were all improved. |
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