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Electrically Conductive Polymers for the Use as Novel Pigments in Advanced Coatings

机译：用作高级涂料中新型颜料的导电聚合物

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摘要

With the push to more environmentally friendly materials to solve some of the biggest challenges in the coatings industry, electrically conductive polymers (ECPs) are seen as a flexible solution due to their unique properties. ECPs are seen as an attractive substitute to the current metallic materials used in applications such as printable electronics, anti-static protection, and corrosion mitigation. Polypyrrole (PPy) is seen as a popular class of ECPs due to its inherent high electrical conductivity, resistance to environmental degradation, and ease of synthesis.;The first part of this work was to study the ability of polypyrrole to be synthesized through a novel photochemical process. This method eliminated the need to stabilize particles in a suspension and deposit an electrically conductive film onto a variety of substrates. The second part of this work was to synthesize functional versions of PPy that could further be crosslinked into the coating matrix to improve bulk physical properties through better interaction between the functional filler and the organic coating matrix. The last part of this work is based off prior work at NDSU on AL-flake/PPy composites. This study took the development of these pigments further by incorporating organic anions known to inhibit corrosion and study their efficacy.;Advanced analytical methods such as Conductive Atomic Force Miscroscopy was used to study the electrical properties of PPy. In addition, advanced electrochemical tests such as Electrical Impedance Spectroscopy (EIS), Scanning Vibrating Electrode Technique (SVET), Linear Polarization (LP), and Galvanic Coupling (GP) were conducted alongside traditional accelerated weathering techniques such as ASTM B117 and GM 9540 to determine the corrosion resistance of the synthesized coatings.
机译：随着人们寻求更加环保的材料来解决涂料行业中的一些最大挑战，导电聚合物（ECP）由于其独特的性能而被视为一种灵活的解决方案。 ECP被认为是可印刷电子设备，防静电保护和缓解腐蚀等应用中当前金属材料的有吸引力的替代品。聚吡咯（PPy）由于其固有的高电导率，耐环境降解性和易于合成而被视为一类流行的ECP；该研究的第一部分是研究通过新型方法合成聚吡咯的能力。光化学过程。这种方法消除了将颗粒稳定在悬浮液中并将导电膜沉积到各种基材上的需要。这项工作的第二部分是合成功能型的PPy，该功能型可进一步交联到涂料基质中，以通过功能性填料与有机涂料基质之间的更好相互作用来改善整体物理性能。这项工作的最后一部分是基于NDSU在AL-flake / PPy复合材料上的先前工作。这项研究通过掺入已知可抑制腐蚀并研究其功效的有机阴离子，进一步促进了这些颜料的开发。；先进的分析方法，例如导电原子力显微镜检查法，用于研究PPy的电性能。此外，还进行了先进的电化学测试，例如电阻抗谱（EIS），扫描振动电极技术（SVET），线性极化（LP）和电偶合（GP）以及传统的加速老化技术，例如ASTM B117和GM 9540，确定合成涂层的耐腐蚀性。

著录项

  • 作者

    Byrom, Joseph Robert.;

  • 作者单位

    North Dakota State University.;

  • 授予单位 North Dakota State University.;
  • 学科 Polymer chemistry.;Materials science.
  • 学位 Ph.D.
  • 年度 2018
  • 页码 179 p.
  • 总页数 179
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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