聚合氯化铝改性阳离子松香胶及其特征  

Characterization of Cationic Rosin Sizes Prepared by Modification of Anionic Rosin Size with PAC

作　　者：晏永祥[1] 陈夫山[1] 王高升[1] 周林杰[1] 

机构地区：[1]天津科技大学天津市制浆造纸重点实验室,天津300222

出　　处：《造纸化学品》2006年第3期13-16,共4页Paper Chemicals

摘　　要：以不同盐基度的高纯聚合氯化铝(PAC)为原料,按不同配比分别与阴离子分散松香胶,在一定条件下进行预混合反应,制得PAC改性阳离子分散松香胶。用光散射粒度仪和傅里叶红外光谱仪研究PAC改性阳离子分散松香胶的电位、颗粒粒度分布及其红外特征。通过plus90粒度仪分析发现,松香粒径均发生了较大变化;通过红外光谱分析证明,该阳离子松香胶有反对称和对称伸缩振动两个强吸收带,其吸收波数分别为1596cm-1和1425cm-1;也证明了阳离子分散松香中的—CO双键和—COOH酸根均与PAC发生了化学反应,生成了多羟基松香酸铝。通过改性反应,PAC改性松香胶的电位由负变正,在m(松香)∶m(氧化铝)=1∶0·3时达到最高值28·8mV。In this paper, cationic rosin sizes were prepared by premixing anionic dispersed rosin size with extremely pure ployaluminum chloride （PAC） with different basicities. The PAC-modified rosin sizes were characterized by zeta potential, particle size and FTIR. The results showed that the particle sizes of the rosin sizes changed greatly while both the double bond --C = O and the -COOH reacted with PAC to form multi-hydroxyl aluminum salts of the rosin acid after the PAC treatments. Through the reaction the rosin size became positively charged, Al2O3/rosin = 1 ： 0.3, zeta potential of premixed admixture is tiptop 28.8 mV.

关 键 词：分散松香胶 聚合氯化铝 改性阳离子松香胶 

分 类 号：TQ351.47[化学工程]