聚天冬氨酸/邻氨基酚磺酸接枝共聚物的合成及阻垢性能  

Synthesis of polyaspartic acid/3-amino-4-hydroxybenzenesulfonic acid graft copolymer and its scale inhibition performance

作　　者：方钫 舒婉婷 李建波[2] 陶明 苟绍华[2] 廖志勇 FANG Fang;SHU Wanting;LI Jianbo;TAO Ming;GOU Shaohua;LIAO Zhiyong(School of Sciences,Xichang University,Xichang 615013,Sichuan,China;College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 615000,Sichuan,China;Sinopec Northwest Oilfield Company,Urumqi 830011,Xinjiang,China)

机构地区：[1]西昌学院理学院,四川西昌615013 [2]西南石油大学化学化工学院,四川成都615000 [3]中国石油化工集团公司西北油田分公司,新疆乌鲁木齐830011

出　　处：《精细化工》2020年第11期2336-2341,共6页Fine Chemicals

基　　金：国家科技重大专项(2016ZX05016-004-008);四川省大学生创新创业训练计划项目(202010628047X);西昌学院科研项目(LGLZ201811)。

摘　　要：以邻氨基酚磺酸(3A4HBSA)与聚琥珀酰亚胺(PSI)为原料,合成了聚天冬氨酸(PASP)接枝共聚物阻垢剂PASP/3A4HBSA。用FTIR与1HNMR对阻垢剂的结构进行了表征,用静态阻垢法考察了PASP/3A4HBSA和PASP对碳酸钙的阻垢性能。得到的最佳反应条件为:当阻垢剂质量浓度为100 mg/L、温度为70℃、时间24 h、pH=7时,PASP/3A4HBSA对CaCO3的阻垢率达到92.7%,而PASP对CaCO3的阻垢率只有77.1%。用SEM与XRD对处理前后的CaCO3垢样表面结构和物相结构进行了表征,用红外光谱进一步分析阻垢剂的阻垢机理。结果表明,阻垢剂对CaCO3的作用主要包括晶格畸变作用和络合作用。Polyaspartic acid/3-amino-4-hydroxybenzenesulfonic acid graft copolymer(denoted as PASP/3A4HBSA)scale inhibitor was synthesized from 3-amino-4-hydroxybenzenesulfonic(3A4HBSA)and polysuccinimide(PSI)and characterized by FTIR and 1HNMR.The static scale inhibition effect of PASP/3A4HBSA and polyaspartic acid(PASP)on calcium carbonate was investigated.The results showed that when the mass concentration of scale inhibitor was 100 mg/L,temperature was 70℃,time was 24 h,and pH was 7,the scale inhibition efficiency of PASP/3A4HBSA on CaCO3 reached 92.7%,while that of PASP was only 77.1%.The surface structure and phase structure of CaCO3 scale samples before and after treatment were characterized by SEM and XRD.The scale inhibition mechanism of the scale inhibitor against CaCO3 was further analyzed by FTIR.It was found that the effect of scale inhibitor on CaCO3 was mainly caused by lattice distortion of CaCO3 and complexation between scale inhibitor and Ca^2+.

关 键 词：聚天冬氨酸 邻氨基酚磺酸 碳酸钙 阻垢性能 阻垢机理 环境保护 

分 类 号：TQ317[化学工程—高聚物工业]