不同阳离子度的C-PNVFSM乳液的纸张增强效果  

The Effects of C-PNVFSM Emulsion with Different Cationic Degrees on Paper Strength

作　　者：牟晓菲[1] 陈少平[1] 刘学海[1] 李雪云[1] 杨广聪[1] 

机构地区：[1]福建师范大学化学与化工学院,福建福州350007

出　　处：《华东纸业》2013年第3期38-41,共4页Shanghai Paper Making

摘　　要：通过N-乙烯基甲酰胺-苯乙烯共聚物乳液的碱性水解反应制备了不同阳离子度的纳米级C-PNVFSM乳液。在近中性造纸条件下,C-PNVFSM在再生瓦楞纸张中具有显著的纸张增强效果,且阳离子度高的C-PNVFSM效果较好。当C-PNVFSM-8220对绝干纸浆0.2%添加时,纸张的干抗张指数从26.0(N·m/g)增加至40.5(N·m/g);环压指数从7.30(N·m/g)增加至10.05(N·m/g);湿抗张指数从1.5(N·m/g)增加至3.7(N·m/g)。The nanoscale particle C-PNVFSM with different cationic degrees were prepared by alkaline hydrolysis of the copolymer emulsions of N-vinylformamide（NVF） and styrene（SM）. Under the near neutral papermaking condition （pH 6.5）, C-PNVFSM showed obvious effects on improvements of paper strength for corrugated recycled pulp papermaking. The effects of C-PNVFSM with high cationic degree on improvements of paper strength were better. The dry tensile strength index of the paper increased from 26.0（N · m/g） to 40.5 （N · m/g）, the ring pressure index increased from 7.30 （N · m/g） to 10.05 （N · m/g）, and the wet tensile strength index increased from 1.5 （N · m/g） to 3.7 （N ·m/g）, at the C-PNVFSM-8220 dosage of 0.2% based on oven dry pulp.

关 键 词：N-乙烯基甲酰胺 苯乙烯 环压指数 干抗张指数 湿抗张指数 

分 类 号：TS727.2[轻工技术与工程—制浆造纸工程]