甲基丙烯酸二甲氨基乙酯-甲氧基聚氧乙烯醚(500)丙烯酸酯共聚物水性超分散剂的合成  

Synthesis of dimethylaminoethyl methacrylate–methoxy polyoxyethylene ether(500)acrylate copolymer as a waterborne hyperdispersant

作　　者：葛毅 向阳 吴建军 杨焰[1] 廖有为[1] GE Yi;XIANG Yang;WU Jianjun;YANG Yan;LIAO Youwei(Central South University of Forestry and Technology,Hunan Province Key Laboratory of Materials Surface&Interface Science and Technology,Changsha 410004,China;Chem(Yueyang)Waterborne Additive Co.,Ltd.,Yueyang Eco-friendly Additives Engineering Technology Research Center,Yueyang 414000,China)

机构地区：[1]中南林业科技大学材料表界面科学与技术湖南省重点实验室,湖南长沙410004 [2]岳阳凯门水性助剂有限公司,岳阳市环保助剂工程技术研究中心,湖南岳阳414000

出　　处：《电镀与涂饰》2021年第8期660-664,共5页Electroplating & Finishing

摘　　要：以甲基丙烯酸二甲氨基乙酯(DMAEMA)提供锚固基团,甲氧基聚氧乙烯醚(500)丙烯酸酯(m PEG500MA)提供溶剂化链,制备了DMAEMA–mPEG500MA二元共聚物水性超分散剂。考察了两种单体的配比、引发剂用量、链转移剂用量和保温时间对炭黑分散效果的影响。采用单因素试验和正交试验得到最优合成条件为:DMAEMA与m PEG500MA的物质的量比2.5∶1.0,偶氮二异丁腈占单体质量的1.5%,正十二烷基硫醇占单体质量的3.0%,保温时间3 h。此时炭黑分散液的黏度为42 mPa·s,细度为5μm,分散力达98%。An aqueous binary copolymer hyperdispersant was synthesized with dimethylaminoethyl methacrylate(DMAEMA)having anchoring group and methoxy polyoxyethylene ether(500)acrylate(mPEG500 MA)providing solvation chain.The effects of proportions of monomers,dosages of initiator and chain transfer agent,as well as holding time on the dispersion of carbon black were studied.The optimal synthetic conditions were determined by single-factor experiments and orthogonal test as follows:DMAEMA-to-mPEG500 MA molar ratio 2.5:1,2,2′-azobis(2-methylpropionitrile)1.5%with respect to the total mass of monomers,1-dodecanethiol 3.0%with respect to the total mass of monomers,and holding time 3 h.The carbon black dispersion prepared with the hyperdispersant has a viscosity of 42 mPa·s,a fineness of 5μm,and a dispersibility of 98%.

关 键 词：甲基丙烯酸二甲氨基乙酯 甲氧基聚氧乙烯醚(500)丙烯酸酯 共聚物 水性超分散剂 炭黑 分散性 

分 类 号：TQ630.4[化学工程—精细化工]