新型两性聚丙烯酰胺对二次纤维的助留助滤性能  

Retention and Drainage Performance of the Novel Amphoteric Polyacrylamide on Recycled Fiber

作　　者：杨开吉[1] 苏文强[1] 陈京环[1] 沈静[1] 

机构地区：[1]东北林业大学生物质材料科学与技术教育部重点实验室,哈尔滨150040

出　　处：《造纸科学与技术》2007年第4期39-43,共5页Paper Science & Technology

摘　　要：采用反相微乳液聚合制备了新型的两性聚丙烯酰胺助留助滤剂,通过检测两性聚丙烯酰胺对二次纤维的助留助滤性能优化聚合工艺,得到最佳聚合条件为:EDTA加入量0.5%(对单体质量);搅拌速度为300 r/min;乳化剂用量为18.61%(对乳液总质量);反应时间为3 h;引发剂用量为0.5%;单体质量分数为50%(对水相质量);反应温度为25℃。检测了优化后制备的两性聚丙烯酰胺的助留助滤性能,结果表明,该两性聚丙烯酰胺具有较好的助留助滤性能,当加入量为0.08%(对绝干浆)时,纸料留着率提高了8.9%,打浆度降低了6.1°SR。A novel amphoteric polyacrylamide using as a retention and drainage aid was prepared by inverse microemulsion, through examination of the retention and drainage performance on the recycled fiber polymerization process was optimtzed, Optimum effect can be obtained when the dosage of EDTA, the stirring speed, the charge of emulsitier, the reaction time, the initiator dosage, the monomer density, the reaction temperature were 0.5%, 300 r/ min, 18.61% , 3 h, 0.5% , 50% and 25℃, respectively. The retention and drainage performance of the amphoteric polyacrylamide were tested, the results show that, when the dosage of amphoteric polyacrylamide was 0.08 %, the retention of stock increased 8.9% and the beating degree decreased 6. 1°SR.

关 键 词：两性聚丙烯酰胺 反相微乳液 二次纤维 助留助滤剂 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]