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首页> 外文期刊>Journal of Applied Polymer Science >Preparation of a Low-Phosphorous Terpolymer as a Scale, Corrosion Inhibitor, and Dispersant for Ferric Oxide
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Preparation of a Low-Phosphorous Terpolymer as a Scale, Corrosion Inhibitor, and Dispersant for Ferric Oxide

机译：低磷三元共聚物作为水垢，缓蚀剂和氧化铁分散剂的制备

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摘要

A novel low-phosphorus terpolymer, used as scale, corrosion inhibitor, and dispersant for iron oxide, was prepared through free-radical polymerization reaction of acrylic acid (AA), oxalic acid-allypolyethoxy carboxylate (APEM), and phosphorous acid (H3PO3) in water with redox system of hypophosphorous and ammonium persulfate as initiator. Structure of the synthesized AA-APEM-H3PO3 terpolymer was characterized by Fourier transform infrared spectrometer and H-1-NMR. The polymer possesses excellent scale inhibition performance for CaCO3, outstanding ability to disperse ferric oxide, and good corrosion inhibition properties. The study showed that AA-APEM-H3PO3 exhibited excellent ability to control calcium carbonate scale, with approximately 90.16% CaCO3 inhibition at a level of 8 mg/L AA-APEM-H3PO3. The data of the light transmittance showed that, compared to hydrolyzed polymaleic acid and polyepoxysuccinic acid, AA-APEM-H3PO3 had superior ability to control iron ions scaling. The light transmittance of the solution was about 24.1% in the presence of the terpolymer when the dosage was 8 mg/L. Moreover, the corrosion inhibition efficiency could reach up to 79.77% at a dosage of 30 mg/L, with ethylene diamine tetra methylene phosphonic acid just 39.62%. Scanning electronic microscopy, transmission electron microscope, and X-ray powder diffraction analysis were used to investigate the effect of AA-APEM-H3PO3 on morphology of calcium carbonate scale. The low-phosphorous terpolymer has also been proven to be effective inhibitor of calcium carbonate even at increasing solution temperature, pH, and Ca2+ concentration. The proposed inhibition mechanism suggests the surface complexation and chelation between the functional groups -P(O) (OH)(2), -COOH and Ca2+, with polyethylene glycol segments increasing its solubility in water. (C) 2014 Wiley Periodicals, Inc.
机译：通过丙烯酸（AA），草酸-烯丙基聚乙氧基羧酸酯（APEM）和亚磷酸（H3PO3）的自由基聚合反应，制备了一种新型的用作阻垢剂，缓蚀剂和氧化铁分散剂的低磷三元共聚物。以次磷酸和过硫酸铵的氧化还原体系为引发剂。合成的AA-APEM-H3PO3三元共聚物的结构通过傅立叶变换红外光谱仪和H-1-NMR表征。该聚合物具有出色的CaCO3阻垢性能，出色的氧化铁分散能力以及良好的缓蚀性能。研究表明，AA-APEM-H3PO3表现出优异的控制碳酸钙垢的能力，在8 mg / L AA-APEM-H3PO3的水平下，约有90.16％的CaCO3抑制作用。透光率数据表明，与水解的聚马来酸和聚环氧琥珀酸相比，AA-APEM-H3PO3具有更好的控制铁离子结垢的能力。当剂量为8 mg / L时，在三元共聚物存在下，溶液的透光率约为24.1％。此外，在30 mg / L的剂量下，乙二胺四亚甲基膦酸的缓蚀效率可以达到79.77％，而乙二胺四亚甲基膦酸仅为39.62％。使用扫描电子显微镜，透射电子显微镜和X射线粉末衍射分析来研究AA-APEM-H3PO3对碳酸钙垢形态的影响。低磷三元共聚物也被证明是有效的碳酸钙抑制剂，即使在溶液温度，pH和Ca2 +浓度升高的情况下也是如此。拟议的抑制机制表明官能团-P（O）（OH）（2），-COOH和Ca2 +之间的表面络合和螯合，其中聚乙二醇链段增加了其在水中的溶解度。 （C）2014威利期刊公司

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