IA/ASP/AMPS三元共聚物合成及阻垢性能
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摘要
以衣康酸(IA)、天冬氨酸(ASP)和2-丙烯酰胺-2-甲基丙磺酸(AMPS)为单体,在过硫酸铵引发下采用水溶液自由基聚合方法制备了新型IA/ASP/AMPS三元共聚物阻垢剂,并利用红外光谱仪对其结构进行分析表征。通过正交实验和单因素实验考察单体摩尔配比、引发剂用量、反应温度及反应时间对共聚产物阻垢性能的影响,确定其最佳合成条件。实验结果表明:共聚单体的摩尔比nIA:nASP:nAMPS为3:1:0. 5,引发剂用量占单体总质量的10%,反应温度为85℃,反应时间为4 h时,合成三元共聚物对碳酸钙、硫酸钙及磷酸钙的阻垢性能最好,阻垢率分别达91%、95%及96%以上;此共聚物的固含量和黏均相对分子质量分别为30. 5%、1402。静态阻垢法评价温度对IA/ASP/AMPS共聚物阻垢性能的影响,结果表明,IA/ASP/AMPS共聚物适用于含碳酸钙、磷酸钙的高温循环冷却水体系。
One novel scale inhibitor of IA/ASP/AMPS terpolymer was prepared from itaconic acid( IA),aspartic acid( ASP) and 2-acrylamido-2-methy propyl sulfonic acid( AMPS) through aqueous free-radical polymerization method,with ammonium persulfate as initiator,and the structure of IA/ASP/AMPS terpolymer was characterized by infrared spectra.The effect of monomer ratio,the amount of initiator,reaction temperature and time on the products' scale inhibition performance was investigated,and the optimum synthesis condition was determined by orthogonal and single factor experiments.The results show that the scale inhibition efficiencies of IA/ASP/AMPS terpolymer against calcium carbonate,calcium sulfate and calcium phosphate are over 91%,94%and 95%respectively,when monomer ratio nIA: nASP: nAMPSis 3: 1: 0. 5,the amount of initiator is 10% of the total mass of monomers,the reaction temperature is 85 ℃ and the reaction time is 4 h.The solid content and relative molecular weight of the terpolymer were 35. 3%and1402,respectively.The effect of temperature on scale inhibition performance of IA/ASP/AMPS terpolymer was evaluated using the static experiment method,and the results indicate that IA/ASP/AMPS terpolymer is suitable for high temperature circulating cooling water system with calcium carbonate and calcium phosphate.
One novel scale inhibitor of IA/ASP/AMPS terpolymer was prepared from itaconic acid( IA),aspartic acid( ASP) and 2-acrylamido-2-methy propyl sulfonic acid( AMPS) through aqueous free-radical polymerization method,with ammonium persulfate as initiator,and the structure of IA/ASP/AMPS terpolymer was characterized by infrared spectra.The effect of monomer ratio,the amount of initiator,reaction temperature and time on the products' scale inhibition performance was investigated,and the optimum synthesis condition was determined by orthogonal and single factor experiments.The results show that the scale inhibition efficiencies of IA/ASP/AMPS terpolymer against calcium carbonate,calcium sulfate and calcium phosphate are over 91%,94%and 95%respectively,when monomer ratio nIA: nASP: nAMPSis 3: 1: 0. 5,the amount of initiator is 10% of the total mass of monomers,the reaction temperature is 85 ℃ and the reaction time is 4 h.The solid content and relative molecular weight of the terpolymer were 35. 3%and1402,respectively.The effect of temperature on scale inhibition performance of IA/ASP/AMPS terpolymer was evaluated using the static experiment method,and the results indicate that IA/ASP/AMPS terpolymer is suitable for high temperature circulating cooling water system with calcium carbonate and calcium phosphate.
引文
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[8]石文艳,颜秀花,仓辉,等.衣康酸-天冬氨酸共聚物合成及其阻垢性能的研究[J].化学研究与应用,2017,29(4):453-458.
[9]Walinsky S.W.Methacrylic acid/itaconic acid copolymers,their preparation and use as antiscalants:US 5032646[P],1991.
[10]于跃芹,董爱想,李忠珍.衣康酸共聚物阻垢剂的合成与应用[J].工业水处理,2005,25(10):44-46.
[11]吴伟,孙昊,李爱山,等.AA-SAS-IA三元聚合物的合成及阻垢性能评价[J].应用化工,2016,45(9):1611-1613.
[12]张成芬.IA/AA/AMPS三元共聚物的合成及阻垢性能研究[J].工业水处理,2011,31(6):70-72.
[13]国家质量监督检验检疫总局,国家标准化管理委员会.GB/T 16632-2008T水处理阻垢剂性能的测定-碳酸钙沉积法[S],北京:中国标准出版社,2008.
[14]SY/T-5673-93,油田用防垢剂性能评定方法[S].北京:中国石油天然气总公司,1993.
[2]Jensen M K,Kelland M A.A new class of hyperbranched polymeric scale inhibitors[J].J petrol sci engin,2012,94-95:66-72.
[3]Guo Xiaorui,Qiu Fengxian,Dong Ke,et al. Preparation,characterization and scale performance of scale inhibitor copolymer modification with chitosan[J]. J Indust Engin Chem,2012,18:2177-2183.
[4]Klement Tobias,Büchs Jochen.Itaconic acid-A biotechnological process in change[J],Bioreso Technol,2013,135:422-431.
[5]Liu Dan,Dong Wenbo,Li Fengting,et al.Comparative performance of polyexpoxysuccinic acid and polyaspartic acid on scaling inhibition by static and rapid controlled precipitation methods[J].Desalina,2012,304:1-10.
[6]Brown J M,Mcdowell J F,Chang K.T.Methods of controlling scale formation in aqueous systems:US,5147555[P],1992.
[7]Xu Ying,Zhang Ben,Zhao Linlin,et al.Synthesis of polyaspartic acid/5-aminoorotic acid graft copolymer and evaluation of its scale inhibition and corrosion inhibition performance[J].Desalina,2013,311:156-161.
[8]石文艳,颜秀花,仓辉,等.衣康酸-天冬氨酸共聚物合成及其阻垢性能的研究[J].化学研究与应用,2017,29(4):453-458.
[9]Walinsky S.W.Methacrylic acid/itaconic acid copolymers,their preparation and use as antiscalants:US 5032646[P],1991.
[10]于跃芹,董爱想,李忠珍.衣康酸共聚物阻垢剂的合成与应用[J].工业水处理,2005,25(10):44-46.
[11]吴伟,孙昊,李爱山,等.AA-SAS-IA三元聚合物的合成及阻垢性能评价[J].应用化工,2016,45(9):1611-1613.
[12]张成芬.IA/AA/AMPS三元共聚物的合成及阻垢性能研究[J].工业水处理,2011,31(6):70-72.
[13]国家质量监督检验检疫总局,国家标准化管理委员会.GB/T 16632-2008T水处理阻垢剂性能的测定-碳酸钙沉积法[S],北京:中国标准出版社,2008.
[14]SY/T-5673-93,油田用防垢剂性能评定方法[S].北京:中国石油天然气总公司,1993.