摘要
采用热缩聚法制备了聚(柠檬酸-天冬氨酸),并用红外光谱和凝胶色谱对其进行了表征。采用静态阻垢法研究了不同条件下制备的聚(柠檬酸-天冬氨酸)对硫酸钙的阻垢性能。采用电化学方法研究了在3.5%(质量分数)氯化钠溶液中聚(柠檬酸-天冬氨酸)对铜的缓蚀性能。结果表明:当天冬氨酸与柠檬酸物质的量之比为1∶1时,制备的聚(柠檬酸-天冬氨酸)(产物C)对硫酸钙的阻垢性能最好,阻垢率达97%,其在3.5%氯化钠溶液中对铜的缓蚀效果也很好。当产物C质量浓度为200mg/L时,对铜的缓蚀率可达81.6%。即制备的聚(柠檬酸-天冬氨酸)具有良好的阻垢缓蚀性能。
Poly （citric acid/aspartic acid）, P（CA/ASP） was prepared by thermal polycondensation method. The synthesized copolymer P（CA/ASP） was characterized by FT-IR spectra and size exclusion chromatography （SEC）. The scale inhibition performance of P（CA/ASP） against CaSO4 was evaluated by static scale inhibition method, and the inhibition ratio of P（CA/ASP） was studied by electrochemical method. The results show that the molar ratio of reaction reagents （citric acid and aspartic acid） was 1 ： 1 （product C）, the scale inhibition rate against CaSO4 was up to 97%. The inhibition performunce of product C is good. When the concentration of product C in 3. 5% sodium chloride solution was 200 mg/L, the corrosion inhibition rate for copper could reach 81. 6%. P（CA/ASP） has excellent scale inhibition performance against CaSO4 and corrosion inhibition performance for copper.
出处
《腐蚀与防护》
北大核心
2017年第9期710-714,共5页
Corrosion & Protection
基金
上海市科学技术委员会课题(14DZ2261000)
关键词
聚(柠檬酸-天冬氨酸)
阻垢
缓蚀
硫酸钙
铜
poly （citric acid/aspartic acid）
scale inhibition
corrosion inhibition
calcium sulfate
copper
