共聚物MA-AM-AA-MMA的反相乳液合成及其阻垢分散性能

以环己烷为分散介质,油/水比例为1.5,Span 80-Tween 80为乳化剂,过硫酸钾为引发剂,用反相乳液合成了功能高分子马来酸酐-丙烯酰胺-丙烯酸-甲基丙烯酸甲酯。通过静态阻垢实验表明,阻垢剂投加量达到8 mg/L对CaCO3、Ca3(PO4)2和CaSO4的阻垢效果较佳,分别为90.5%,93.2%和86%;在高温、高pH、高硬度等恶劣条件下对碳酸钙仍分别有40.4%,32.4%,37.6%的较好阻垢率;投加量达到3 mg/L时对氧化铁的分散性能最佳,透光率为69.7%。并用IR法对其结构进行表征。该阻垢剂是一种耐严酷条件的优良多功能阻垢分散剂。

Study of synthesis of copolymer MA-AM-AA-MMA and its scale inhibition and disperse ability

Hexahydrobenzene is taken as the dispersion medium,the proportion of the oil/water is 1.5,Span 80-Tween 80 is used as emulsifier and the potassium persulfate as the initiator,functional polymer MA-AM-AA-MMA was synthesized by reversion emulsion polymerization.By scale static beaker tests,the experimental results showed that its scale inhibition efficiency against CaCO_3,Ca_3(PO_4)_2 and CaSO_4 were 90.5%,93.2% and 86% when its dosage is 8 mg/L,there are still ideal scale inhibition efficiency(40.4%,)32.4%,37.6% against CaCO_3 in bad condition of high temperature,high pH value,high hardness.There is the best disperse property for Fe_2O_3 when the dosage is 3 mg/L,light transmittance is(69.7%.)Its structure was characterized by IR.The multipolymer is a good versatile scale inhibition and disperse property agent adapting to bad condition.