一种新型聚羧酸系水煤浆分散剂的合成及性能研究  

SYNTHESIS OF A NOVEL POLYCARBOXILIC ACID SERIES DISPERSANT AND ITS PROPERTIES

作　　者：任军哲 张安琪[2] 魏辉[2] 张光华[2] 

机构地区：[1]陕西煤化能源有限公司,陕西长武713600 [2]陕西科技大学化学与化工学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2011年第2期40-43,共4页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅产业化培育项目(编号:2010JC03)

摘　　要：以过硫酸钾为引发剂,以苯乙烯磺酸钠、甲基丙烯酸为单体,与自制的衣康酸-聚乙二醇大单体通过溶液聚合制备出一种聚羧酸水煤浆分散剂,用红外光谱、热分析方法对聚合物进行了表征和分析,并且探讨了单体配比、反应温度、引发剂用量对分散剂的影响,确定了较佳反应条件.结果表明,制浆浓度为68%的水煤浆,其表观黏度为783 mPa.s.A novel polycarboxylic coal water slurry dispersant was prepared by solution polymerization of polyethylene glycol-itaconic acid ester and styrene sulfonate and methacrylic acid as monomers,with K2S2O8 as initiator.The macromolecular polymer was characterized and analyzed by IR,TG-DTA.The effects of the monomer ratio,reaction temperature initiator usage on the dispersant′s performance were investigated,which confirmed the optimal reaction condition.The result showed that,when the concentration reached 68% of the CWS,the apparent viscosity would be 968.33 MPa·s.

关 键 词：衣康酸 水煤浆 分散剂 表观黏度 

分 类 号：TQ536.9[化学工程—煤化学工程]