Abstract:

With water as solvent and sodium hypophosphite/hydrogen peroxide as initiator， a novelquadripolymer scale and corrosion inhibitor， denoted as PMASH， has been systhesized with maleic anhydride（MA）， acrylic acid （AA）， sodium acrylsulfonate （SAS） and hydroxyl propyl acrylic （HPA）. Moreover， itspreparation procedures are optimized. When 5 mg/L of this quadripolymer is used， the scale inhibition rates ofCaCO₃ and Ca₃ （PO₄）₃ are 87.6% and 85.4% respectively and corrosion inhibition rate is 83.9%. The infraredspectrum indicates that PMASH contains carboxyl， phosphonyl and sulfonic acid groups in its molecularstructure.

Key words: scale and corrosion inhibitor, water solution polymerization, quadripolymer

摘要：

以马来酸酐(MA)、丙烯酸(AA)、烯丙基磺酸钠(SAS)和丙烯酸羟丙酯(HPA)为单体,水为溶剂,过氧化氢/次磷酸钠为引发剂,合成了四元聚合缓蚀阻垢剂PMASH。通过大量试验确定了最佳合成条件。实验结果表明:PMASH质量浓度为5 mg/L时,对碳酸钙垢和磷酸钙垢阻垢率分别达87.6%和85.4%,缓蚀率为83.9%。红外光谱检测表明PMASH分子结构含羧基、膦酰基和磺酸基等官能团。

关键词: 缓蚀阻垢剂, 水溶液聚合, 四元共聚物

CLC Number: 

• TQ085.412