聚羧酸系水煤浆分散剂的试验研究  

Test and research on polycarboxylic acid series coal water mixture disperser

作　　者：茅晔辉[1] 朱书全[1] 吴晓华[1] 杨纯[1] 宋金梅[1] 史娜[1] 陈正中[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《煤炭科学技术》2008年第12期90-93,共4页Coal Science and Technology

基　　金：国家自然科学基金资助项目(50074033)

摘　　要：研究了以丙烯酸、苯乙烯磺酸钠和聚乙二醇为主要原料制备聚羧酸系高效水煤浆分散剂的方法。探讨了大分子单体的合成条件,并分析了共聚反应时引发剂用量、单体浓度和链转移剂用量对分散剂平均分子量和黏度的影响。用合成的分散剂对屯留煤泥进行成浆性能测试,在浆体浓度为75.27%、添加剂用量为0.4%时,水煤浆黏度仅为898.54 mPa.s,结果表明该分散剂适用于该煤种,并用乌氏黏度计测定了该分散剂溶液的黏度,确定其相对分子量大小为20 000~30 000。The paper had a study on the preparation method of the polycarboxylic acid series coal water mixture disperser with acrylic acid(CA),sodium styrene sulfonic(SSS) and polyethylene glycol(PEO) as the main raw materials.The paper discussed the synthetic conditions of the high-molecular monomer.The paper analyzed the influences of the initiator dosage,monomer density and chain transfer do-sage during the copolymerization reaction.were also particularly studied.The slurry performance test with Tunliu slime was c...

关 键 词：聚羧酸 分散剂 水煤浆 

分 类 号：TQ314.255[化学工程—高聚物工业]