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Improvement of anticorrosive performance of phosphate-based alkyd paints with suitable additives

机译：使用合适的添加剂改善磷酸盐基醇酸涂料的防腐性能

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摘要

The purpose of this investigation was focused on reducing the content of zinc phosphate in anticorrosive paints by means of the incorporation of low quantities of selected soluble- corrosion inhibitors. The article describes the anticorrosive behavior of alkyd paints containing reduced levels of zinc phosphate, zinc oxide, and some soluble compounds used as additives (e.g., sodium polyphosphate, sodium phosphate, and sodium benzoate). Anticorrosive solvent-borne alkyd paints were formulated with a zinc phosphate content of 10% by volume (v/v) with respect to the total pigment concentration. In all cases, the PVC/CPVC (pigment volume concentration/critical pigment volume concentration) ratio was 0.8. Experimental paints, applied on sandblasted SAE 1010 panels, were evaluated by accelerated tests (salt spray cabinet) and electrochemical measurements (electrochemical impedance spectroscopy, EIS). The results show that the additions of small amounts of soluble corrosion inhibitors to low content zinc phosphate paint formulations enhance their performance in a very remarkable way. Perhaps, the most outstanding feature is that the employment of soluble additives allowed the reduction of the zinc phosphate content with concomitant savings.
机译：这项研究的目的是通过掺入少量精选的可溶缓蚀剂来降低防腐涂料中磷酸锌的含量。该文章介绍了含磷酸锌，氧化锌和某些可溶性添加剂（例如多磷酸钠，磷酸钠和苯甲酸钠）含量降低的醇酸涂料的防腐性能。配制的防腐型溶剂型醇酸树脂涂料的磷酸锌含量相对于总颜料浓度为10％（体积/体积）。在所有情况下，PVC / CPVC（颜料体积浓度/关键颜料体积浓度）之比为0.8。通过加速测试（盐雾柜）和电化学测量（电化学阻抗谱，EIS）评估涂在喷砂SAE 1010面板上的实验涂料。结果表明，向低含量磷酸锌涂料配方中添加少量可溶性腐蚀抑制剂会以非常显着的方式增强其性能。也许，最突出的特点是使用可溶性添加剂可以降低磷酸锌的含量，同时节省成本。

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  • 来源
    《JCT research》 |2011年第2期|p.171-181|共11页
  • 作者

    G. Blustein; M. C. Deya; R. Romagnoli; A. R. Di Sarli; B. del Amo;

  • 作者单位

    CIDEPINT, Centro de Investigation y Desarrollo en Tecnologia de Pinturas (CICPBA-CONICET), Calle 52 e/121 y 122, B1900AYB La Plata, Argentina;

    CIDEPINT, Centro de Investigation y Desarrollo en Tecnologia de Pinturas (CICPBA-CONICET), Calle 52 e/121 y 122, B1900AYB La Plata, Argentina;

    CIDEPINT, Centro de Investigation y Desarrollo en Tecnologia de Pinturas (CICPBA-CONICET), Calle 52 e/121 y 122, B1900AYB La Plata, Argentina;

    CIDEPINT, Centro de Investigation y Desarrollo en Tecnologia de Pinturas (CICPBA-CONICET), Calle 52 e/121 y 122, B1900AYB La Plata, Argentina;

    CIDEPINT, Centro de Investigation y Desarrollo en Tecnologia de Pinturas (CICPBA-CONICET), Calle 52 e/121 y 122, B1900AYB La Plata, Argentina;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    anticorrosive paints; phosphate pigments; soluble additives; electrochemical impedance spectroscopy;

    机译：防腐涂料;磷酸盐颜料;可溶性添加剂;电化学阻抗谱;

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