MAA/SAS共聚物陶瓷粉体分散剂的制备及表征  

Preparation and Characterization of MAA/SAS Copolymer Dispersant for Ceramic Powder

作　　者：张光华[1] 来智超[1] 周小丰[1] 李慧[1] 

机构地区：[1]陕西科技大学化学与化工学院,陕西咸阳712081

出　　处：《高分子材料科学与工程》2008年第1期155-158,共4页Polymer Materials Science & Engineering

摘　　要：以甲基丙烯酸(MAA)和烯丙基磺酸钠(SAS)为单体,制得MAA/SAS共聚物。探讨了不同反应条件对共聚物分散性的影响,通过FT-IR、GPC及TGA-DSC等手段对共聚物的结构、热稳定性以及相对分子质量及其分布进行了表征。并对最佳条件下制得的共聚物分散剂在陶瓷氧化铝浆料中进行分散效果试验,结果表明,当共聚物加入量为0.5%时,分散效果良好。The copolymer dispersant for ceramic powder MAA/SAS was synthesized by methyl acrylic acid and sodium allylsulfonate. The effect of different reaction conditions on dispersing proper- ties of copolymer has been investigated. The optimum conditions are as follows： the mole ratio of methyl acrylic acid and sodium allylsulfonate 3： 1, the amount of initiator 4%, the amount of sodium bisulfite 1.67%, reaction temperature 75 ℃. The copolymer was characterized and analyzed by FTIR, GPC and TGA-DSC. The copolymer synthesized in optimum conditions was used in alumina powder. The results show that smaller viscosity and better dispersion effects are achieved when the copolymer mass fraction is 0.5 %.

关 键 词：甲基丙烯酸 丙烯磺酸钠 共聚物分散剂 

分 类 号：TQ316.61[化学工程—高聚物工业]