• 文献标题:   Anti-corrosion performance of pigment-free epoxy novolac/reduced graphene oxide composite coatings
  • 文献类型:   Article
  • 作  者:   BARBOSA MN, KASSAB EJ, QUINTELA JP, OLIVEIRA JL, BATALHA JAFL, FALLA MDH, BOTT IS
  • 作者关键词:   corrosion, pigmentfree epoxy resin, reduced graphene oxide, coating, nanocomposite
  • 出版物名称:   FULLERENES NANOTUBES CARBON NANOSTRUCTURES
  • ISSN:   1536-383X EI 1536-4046
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1080/1536383X.2021.1933956 EA MAY 2021
  • 出版年:   2022

▎ 摘  要

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.