马来酸酐-烯丙氧基乙烯氧基羧酸共聚物去质子化程度对钙垢的影响  

Effect of Degree of Deprotonation of Maleic Anhydride-Allyl Polyethoxy Carboxylic Acid Copolymer on Calcium Scale

作　　者：赵伟东 柳鸿斌[1] 苟瑞坤 车垚 李健廷 宋加瑞 王良壁 王良成[1,3] Weidong Zhao;Hongbin Liu;Ruikun Gou;Yao Che;Jianting Li;Jiarui Song;Liangbi Wang;Liangcheng Wang(School of Chemical and Biological engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;NO.1 Gas Production Plant of Changqing Oilfield company,CNPC,Yulin 718500,China;Key Laboratory of Railway Vehicle Thermal Engineering,Ministry of Education,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学化学与生物工程学院,甘肃兰州730070 [2]中国石油长庆油田分公司第一采气厂,陕西榆林718500 [3]铁道车辆热工教育部重点实验室,甘肃兰州730070

出　　处：《高分子材料科学与工程》2021年第5期16-21,共6页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51166007)。

摘　　要：以马来酸酐和烯丙氧基乙烯氧基羧酸(APEA)为原料,通过自由基聚合法合成了含羧基和乙烯氧基的亲水性共聚物,通过红外光谱、核磁共振氢谱和凝胶色谱对其结构进行了表征。通过静态阻垢实验研究了聚合物的去质子化程度对抑制钙垢的影响,并通过扫描电镜和X射线衍射分析考察了聚合物的去质子化程度对碳酸钙晶体的形貌与晶型分布的影响。结果表明,随着去质子化程度的增加,聚合物对碳酸钙和硫酸钙垢的抑制效率逐渐降低,而对磷酸钙垢的抑制效率逐渐增加;阻垢剂去质子化程度的改变加速了文石和球霰石向方解石的转化,但这种转化并未明显影响碳酸钙晶体的形貌。A hydrophilic copolymers(MA-APEA)containing carboxylic acid groups and ethylene oxide groups were synthesized from maleic anhydride and allyloxy polyethoxy carboxylic acid by free radical polymerization and the structures were characterized using FT-IR,1H-NMR and GPC.The effect of the deprotonation degree of the polymers on the calcium scale inhibition was studied by the static scale inhibition method.The morphologies and crystal distributions of calcium carbonate crystals were analyzed by SEM and XRD.The experimental results show that the inhibition efficiency of the polymers to CaCO_(3) gradually decreases and the inhibition efficiency to Ca3(PO4)2 gradually increases with the increase of deprotonation degree.The change in the degree of deprotonation influences the conversion of aragonite and vaterite to calcite,but hardly impacts the crystal morphologies of CaCO_(3) crystals.

关 键 词：阻垢剂 去质子化程度 共聚物 钙垢 

分 类 号：TQ085.412[化学工程]