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阳离子型聚丙烯酰胺接枝淀粉絮凝剂的制备及其在造纸中的初步应用研究
Study on Synthesis of Flocculant of Cationic Starch Grafted by Acrylamide and its Primary Application in Paper - making
【摘要】 主要研究阳离子型聚丙烯酰胺接枝淀粉絮凝剂的合成工艺及它在造纸中的应用。实验结果表明,接枝共聚物合成的最佳工艺条件为:接枝反应时,硝酸铈铵量浓度为1.O×10-3mol/L,淀粉与丙烯酰胺单体质量比为1:3,接枝聚合反应温度及时间分别为50℃和3h;阳离子化时,n(接枝物):n(甲醛):n(二甲胺)=1.0:1.0:1.5,反应温度为70℃,反应时间为2h。该产品对造纸网下白水具有良好的絮凝效果。
【Abstract】 The paper discussed the synthesis of flocculant of cationic starch grafted by Acrylarnide and its application to white water. The research showed: the grafting reaction was proceeded by free radical mechanism,when c(Ce4+ ) = 1.0 × 10-3 mol/L, ω(St) : ω(AM) = 1:3,the product has good flocculation effect.
【关键词】 淀粉;
丙烯酰胺;
接枝共聚;
絮凝剂;
造纸白水;
【Key words】 starch; acrylamide; graft copolymerization; flocculant; papermaking whitewater;
【Key words】 starch; acrylamide; graft copolymerization; flocculant; papermaking whitewater;
- 【文献出处】 造纸化学品 ,Paper Chemicals , 编辑部邮箱 ,2003年01期
- 【分类号】X793
- 【被引频次】27
- 【下载频次】404