摘要：

合成了AA/MA/AM/MM 多元共聚物，并对所得产品进行了碳酸钙静态阻垢实验，探讨了共聚物的分子量、投加量、溶液的pH 值、温度、恒温时间等因素与共聚物阻垢率的关系，并用扫描电子显微镜观测了碳酸钙晶形的变化，结果表明，AA/MA/AM/MM 多元共聚物阻垢性能较好，该共聚物使碳酸钙晶形发生了畸变。

关键词: 丙烯酸/马来酸酐/丙烯酰胺/甲基丙烯酸甲酯共聚物, 碳酸钙, 阻垢剂, 阻垢率

Abstract:

A series of acrylic acid/maleic anhydride/acrylamide/methylmethacrylate copolymers in sodium salt were prepared and tested as scale inhibitor in laboratory. The effect of AA/MA/AM/MM copolymer molecular mass, concentration, pH value, temperature and the time of constant temperature on the ratio of scale inhibition of copolymers were discussed. It was found that AA/MA/AM/MM copolymer had excellent properties of inhibiting CaCO₃ scale and caused CaCO₃ crystal distortion.

Key words: acrylic acid/maleic anhydride/acrylamide/methylmethacrylate, scale inhibitor, ratio of scale inhibition