线性-树枝状嵌段共聚物作为冷却水系中碳酸钙的绿色阻垢剂

Linear-dendritic block copolymers as a green scale inhibitor for calcium carbonate in cooling water systems.

作者信息

Liu Guangqing, Xue Mengwei, Liu Qinpu, Zhou Yuming

机构信息

School of Environmental Science, Nanjing Xiaozhuang University, Nanjing, P.R. China.

School of Chemistry and Chemical Engineering, Southeast University, Nanjing, P.R. China.

出版信息

Des Monomers Polym. 2017 Feb 23;20(1):397-405. doi: 10.1080/15685551.2017.1296530. eCollection 2017.

DOI:10.1080/15685551.2017.1296530

PMID:29491811

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5784867/

Abstract

Water-soluble monomer APEG-PG-(OH)n were produced and the Structure of APEG-PG-(OH)5 were identified by H-NMR. APEG-PG-(OH)n were copolymerized with maleic anhydride (MA) to synthesize no phosphate and nitrogen free calcium carbonate inhibitor MA/APEG-PG-(OH)n. The structure and thermal property of MA/APEG-PG-(OH)5 were characterized and measured by H-NMR, GPC and TGA. The observation shows that the dosage and value of MA/APEG-PG-(OH)n plays an important role on CaCO inhibition. MA/APEG-PG-(OH)5 displays superior ability to inhibit the precipitation of calcium carbonate, with approximately 97% inhibition at a level of 8 mg/L. The effect on formation of CaCO was investigated with combination of SEM and XRD analysis.

摘要

制备了水溶性单体APEG-PG-(OH)n，并通过H-NMR鉴定了APEG-PG-(OH)5的结构。将APEG-PG-(OH)n与马来酸酐(MA)共聚，合成了无磷无氮的碳酸钙抑制剂MA/APEG-PG-(OH)n。通过H-NMR、GPC和TGA对MA/APEG-PG-(OH)5的结构和热性能进行了表征和测定。观察结果表明，MA/APEG-PG-(OH)n的用量和值对碳酸钙抑制起着重要作用。MA/APEG-PG-(OH)5表现出优异的抑制碳酸钙沉淀的能力，在8 mg/L的水平下抑制率约为97%。结合SEM和XRD分析研究了其对碳酸钙形成的影响。