摘要：

以水做溶剂 ,采用自制的催化剂合成了马来酸酐 (MA)—丙烯酸 (AA)共聚物 (MA/AA) ,考察了合成条件与共聚物性质的关系。探讨了共聚物对CaCO3、Ca3(PO4 ) 2 和CaSO4 的阻垢率与引发剂用量、滴加时间以及单体配比之间的关系。实验结果表明 ,合成的共聚物对碳酸钙、硫酸钙、磷酸钙具有良好的阻垢性能。在药剂用量为 12mg/L时 ,对碳酸钙的阻垢率达 98%以上 ;对硫酸钙、磷酸钙也分别达 5 8%和 6 9%。该共聚物可用作工业循环冷却水的阻垢剂。

关键词: 马来酸酐&mdash, 丙烯酸共聚物, 合成, 阻垢剂

Abstract:

Maleic anhydride-acrylic acid copolymers have been prepared.The effects of synthetics condi tions such as the amount of initiator, dropping time and monomer's ration the co rresponding product's scale-inhibiting performance of CaCO₃, CaSO₄ and Ca₃(PO₄)₂ are discussed.The results show that the copolymer possesses quite good effect in reducing scale depositions of CaCO₃, CaSO₄ and Ca₃(PO₄)₂, Inhibiting scale ratios ofthe copolymer to CaCO₃, CaSO₄ and Ca₃(PO₄)₂ are 98%, 58% and 69% respectively .The copolymer can be used as scale inhibitor in cooling water for industrial circulating water.

Key words: maleicanhy dride-acrylic acid copolymer, synthesis, scale inhibitor

中图分类号: 

• TQ085+.4