有机改性膨润土微粒助留助滤剂的制备及其性能研究  

Preparation of retention and drainage aid modified with organobentonite microbeads and its properties

作　　者：夏新兴[1] 余小藏 李金宝[2] 康阳[2] 陈旭波[2] 

机构地区：[1]浙江理工大学材料与纺织学院,杭州310018 [2]陕西科技大学轻工与能源学院,西安710021

出　　处：《中华纸业》2016年第2期29-32,共4页China Pulp & Paper Industry

基　　金：浙江理工大学科研启动基金(14012081-Y);陕西省科技统筹创新工程计划项目(2012KTCQ01-36)资助

摘　　要：采用反相微乳液聚合法,以丙烯酸和丙烯酰胺为单体,合成阴离子有机微粒,并用其改性蒙脱石含量低的钙基膨润土,制备改性有机复合膨润土,分析改性后膨润土的形貌、层间距、粒径、荷质比等变化,研究改性膨润土在造纸湿部中的助留助滤性能。结果表明:经阴离子有机微粒改性后,有机复合膨润土的片层遭到破坏,粒径及层间距减小;在有机微粒加入量1%时(相对于膨润土的量),有机微粒复合改性膨润土的粒径达到最小值2.60μm,荷质比为-1.01×10-4mol/g。在此粒径和荷质比下,有机微粒复合改性膨润土与CPAM助留助率体系对纸料中细小组分的助留助滤效果最好。An anionic organic micro-polymer of acrylic acid and acrylamide were obtained by conventional inverse emulsion polymerization techniques, further calcium base bentonite with low montmorillonite content was modified by it to prepare modified organo-bentonite. The changes of its morphology, inter-lamellar space, diameter and charge-mass ratio and the effect on retention and drainage in the papermaking process were investigated. The results show that the integrated layer of organo-bentonite is broken and the diameter and the layer spacing decrease after modification by anionic organic micro-polymer. When the addition of anionic organic micro- polymer is 1%, related on the quality of Ca-bentonite, the organo- bentonite＇s diameter has a minimum value of 2.60 micrometer, and the charge-mass ratio is minus 1.01×10^-4 eq/g. In this condition, the system combining organo-bentonite with CPAM performs best retention and drainage properties.

关 键 词：阴离子有机微粒 半干法 改性膨润土 助留助滤 

分 类 号：TS727[轻工技术与工程—制浆造纸工程]