新型三元聚合物阻垢剂的合成及性能评价

在水溶液中,以过硫酸钾为引发剂,马来酸酐(MA)、丙烯酸甲酯(MAC)、甲基丙烯磺酸钠(SMAS)为反应单体,合成无磷聚合物(MA/MAC/SMAS)。探讨了阻垢剂投加量、阻垢实验温度对聚合物阻垢率的影响,在静态试验条件下评价了其对氧化铁的分散性能,用正交实验法确定了最佳合成条件:单体配比n(马来酸酐)∶n(丙烯酸甲酯)∶n(甲基丙烯磺酸钠)=1.5∶0.5∶0.1,引发剂用量为单体的10%(wt),反应温度为80℃,反应时间为3 h。结果表明:引发剂用量是影响聚合物阻垢率的主要因素,该聚合物具有良好的阻垢分散性,阻垢率高达90.1%,

Preparation,Characterization and Inhibition Efficiency of New Terpolymer Scale Inhibitor

In aqueous solution,usingpotassium persulfate as the initiator, maleic anhydride （MA）, methyl acrylate （MAC）,methacrylic sulfonate （SMAS） as monomer,non-phosphatecopolymer（MA / MAC / SMAS）was synthesized. Effect ofinhibitor dosageandtemperature on inhibition rate of the copolymerwas discussed.Itsdispersion property for iron oxide was evaluatedunder static test conditions, the optimum synthesis conditionsweredeterminedbyusing orthogonal experiment method：singlebody ration（maleic anhydride）：n（methyl acrylate）：n（methacrylic sulfonate） =1.5：0.5：0.1, initiator amount of monomer 10%（wt）, the reaction temperature 80℃, reaction time 3h. The results show that： the amount of initiator is the main factor affecting theinhibitionrate ofthecopolymer;the copolymer has good scale dispersion, inhibition ratecan beup to 90.1%.