摘要：

以氨基磺酸为磺化剂合成了具有聚乙烯氧基长链的大分子单体聚醚磺酸盐(APES),并以APES和丙烯酸(AA)为单体水相合成了嵌段共聚物AA-b-APES。通过红外光谱、溴值、羟值、元素分析和热重分析对APES和AA-b-APES进行了表征。透射电镜表明,AA-b-APES减小了磷酸钙固体颗粒尺寸。研究表明,APES的磺化率约为90%,AA-b-APES在6 mg/L时的阻磷酸钙垢率为92%,是一种优于商业阻垢剂的阻磷酸钙垢的无磷阻垢剂。

关键词: 磺酸盐封端聚醚, 磷酸钙, 阻垢剂

Abstract:

Amidosulfonic acid has been used as sulfonating agent for synthesizing macro-monomer polyether sulfate（APES），and APES and AA have been used as monomer for synthesizing block copolymer AA-b-APES in aqueoussolutions. APES and AA-b-APES are characterized by bromine value，hydroxyl value，element analysis, thermogravimetric analysis and FT-IR. Transmission electron microscope（TEM） images show that the application of AAb-APES significantly decreases the size of calcium phosphate solid granules. The research indicates that the sulfonating rate of APES is approximately 90% and calcium phosphate inhibiting rate is 92%,when the dosage of AA-b-APES is 6 mg/L. Therefore，AA-b-APES is a kind of non-phosphorus scale inhibitor for inhibiting calcium phosphate scale，superior to commercial scale inhibitors.

Key words: sulfate-capped polyether, calcium phosphate, scale inhibitor

中图分类号: 

• X703