ABSTRACT

Functional or smart coatings (organic, inorganic, or hybrid) are formed by materials that can be adapted for many applications where they should be able to perform a well-defined set of functions, such as improving chemical, mechanical, electrical, and magnetic properties of the substrate. This project studied the anticorrosive efficiency of nanoaditivated pigment-free epoxy coating by the addition of rGOL in the contents of 0.1 and 0.5 wt%. XRD, AFM, FTIR, and Raman spectroscopies were employed to obtain relevant information on the molecular structure and interaction between epoxy resin and rGOL. Thermogravimetry results did not indicate a significant change in polymer matrix T_g. This could be related to an incomplete curing process of the resin and/or the presence of defects in the rGOL sample. All the corrosion tests results indicated that the rGOL addition promotes improvements to the epoxy corrosion resistance reached by a barrier mechanism.

摘要

功能性或智能涂层（有机、无机或混合）由可适用于许多应用的材料形成，在这些应用中，它们应该能够执行一组明确的功能，例如改善化学、机械、电气和磁性能的基板。本项目通过添加 0.1 和 0.5 wt% 的 rGOL 研究了纳米添加剂无颜料环氧涂料的防腐效果。采用 XRD、AFM、FTIR 和拉曼光谱仪获得了环氧树脂与 rGOL 之间的分子结构和相互作用的相关信息。热重分析结果未表明聚合物基质T _{g发生显着变化}. 这可能与树脂的不完全固化过程和/或 rGOL 样品中存在缺陷有关。所有腐蚀测试结果表明，rGOL 的添加促进了通过屏障机制达到的环氧树脂耐腐蚀性的改善。