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首页> 外文期刊>International Journal of Polymeric Materials >Study on Calcium Scales Inhibition Performance in the Presence of Double-Hydrophilic Copolymer
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Study on Calcium Scales Inhibition Performance in the Presence of Double-Hydrophilic Copolymer

机译:双亲水性共聚物存在下钙垢阻垢性能的研究

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Novel double-hydrophilic block copolymers, acrylic acid (AA)-2-acrylamido-2-methyl-propane sulfonate (AMPS)-oxalic acid-allypolyethoxy carboxylate (APEM) was specially designed and synthesized from allyloxy polyethoxy ether (APEG) to inhibit the precipitation of CaCO3 and CaSO4. The structure of the copolymer was characterized by FT-IR and H-1-NMR. Using the static experiment method, the scale inhibition efficiencies for CaCO3 and CaSO4 scale were investigated. It was shown that AA-AMPS-APEM exhibited excellent ability to control inorganic minerals scales, with approximately 97.1% CaSO4 inhibition and displayed significant ability to prevent the formation of CaCO3 scales. The synthesized AA-AMPS-APEM was also compared with that of current commercial inhibitors. The effect of the copolymer addition on the crystals of CaCO3 and CaSO4 scales morphology and structures were examined through scanning electron microscope (SEM), transmission electron microscope (TEM), and X-ray diffraction studies (XRD). It proved that great changes in the size and morphology of the calcium scales took place under the influence of AA-AMPS-APEM. The proposed inhibition mechanism suggests the formation of complexes between the side-chain carboxyl groups of AA-AMPS-APEM and calcium ions on the surface of inorganic minerals, and the excellent solubility of complexes resulted from a number of hydrophilic polyethylene glycol (PEG) and sulfonic group (-SO3H) group.
机译:新型双亲水嵌段共聚物丙烯酸(AA)-2-丙烯酸酰胺基-2-甲基丙烷磺酸酯(AMPS)-草酸-烯丙基聚乙氧基羧酸酯(APEM)是专门设计和合成的,由烯丙氧基聚乙氧基醚(APEG)来抑制CaCO3和CaSO4的沉淀。通过FT-IR和H-1-NMR表征共聚物的结构。采用静态实验方法,研究了CaCO3和CaSO4水垢的阻垢效率。结果表明,AA-AMPS-APEM表现出优异的控制无机矿物水垢的能力,对CaSO4的抑制率约为97.1%,并且显示出显着的防止CaCO3水垢形成的能力。还将合成的AA-AMPS-APEM与目前的商业抑制剂进行了比较。通过扫描电子显微镜(SEM),透射电子显微镜(TEM)和X射线衍射研究(XRD)检查了共聚物添加对CaCO3和CaSO4鳞片晶体的形态和结构的影响。事实证明,在AA-AMPS-APEM的影响下,钙垢的大小和形态发生了巨大变化。拟议的抑制机制表明AA-AMPS-APEM的侧链羧基与无机矿物质表面的钙离子之间形成了配合物,并且由于许多亲水性聚乙二醇(PEG)和磺酸基(-SO3H)基团。

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