阳离子无皂苯丙聚合物分散松香胶的制备及应用  

Preparation and application of cationic dispersed rosin size based on surfactant-free styrene-acrylate coplymer

作　　者：张勇[1] 李小瑞[1] 费贵强 王海花[1] 

机构地区：[1]陕西科技大学化学与化工学院轻化工材料与设计研究所,西安710021

出　　处：《中华纸业》2008年第24期40-43,共4页China Pulp & Paper Industry

基　　金：国家自然科学基金项目(50473049;50673055)

摘　　要：采用阳离子无皂苯丙聚合物分散松香胶的优化制备工艺,将松香一次性投入,以DMC为自乳化阳离子单体,AM为亲水单体,St、EA为亲油单体,经氧化-还原引发,借助于反应形成的阳离子无皂苯丙聚合乳液作分散乳化剂制得阳离子苯丙共聚物分散松香胶。该松香胶具有优异的施胶效果和稳定性,以CPAM为助留剂,矾土的用量明显降低,对磨木浆加入量为1%～1.2%时,施胶度达72s,GCC填料为15%～20%时,仍具有较好的施胶效果,可适用于近中性抄纸体系。A cationic styrene-acrylate copolymer dispersion rosin size was prepared with optimized preparation technology of cationic surfactant-free styreneacrylate coplymer dispersion rosin size, rosin added in once, with DMC selfemulsifying cationic monomer AM as hydrophilic monomer, styrene（St） and ethyl acrylate（EA） as hydrophobic monomer, with the initiation of oxidation and reduction and with the prepared cationic surfactant-free styrene-acrylate coplymeric emulsion as dispersion emulsifying agent. The rosin size had outstanding sizing effect and stability, with CPAM as retention aid, the dosage of alumina was remarkably decreased, when addition of 1%-1.2% on ground-wood pulp, the degree of sizing reached 72s, and when GCC filler was 15%-20%, the sizing effect was still desirable. It can be used for neutral papermaking system.

关 键 词：阳离子分散松香胶 无皂苯丙聚合物 乳化 施胶效果 中性施胶 

分 类 号：TS727.5[轻工技术与工程—制浆造纸工程]