Study on Physical Properties and Corrosion Kinetics of Dopamine Modified GO-TiO2 Nanocomposites in Waterborne Epoxy Resin

  • SHU Jian-Kang ,
  • WANG Sun-Wei ,
  • RAO Yong-Tiao ,
  • BO Hao-Ran ,
  • FENG Tai-Cheng ,
  • DIAO Shu-Hua ,
  • LI Bei-Bei
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  • 1. School of Petroleum Engineering,Changzhou University,Changzhou,Jiangsu 213100,China;
    2. School of Chemistry and Chemical Engineering,Yulin University,Yulin,Shaanxi 719000,China

Received date: 2019-03-06

  Revised date: 2019-07-08

  Online published: 2019-08-01

Abstract

A nano-PDA@GO-TiO2 composite was prepared with dopamine(DA)modified graphite oxide(GO)and GO loaded with nano-TiO2. The structure and micro-morphology of the nano-PDA@GO-TiO2 composites was charicterized by FT-IR,XRD,Raman,XPS and TEM.The modified nano-PDA@GO-TiO2 composite was dispersed into waterborne epoxy resinby combination of ultrasonic dispersion and mechanical stirring,to prepare the nano-PDA@GO-TiO2 composite waterborne epoxy resin coatings(PGT / WEP). The physical properties of the coatings film,such as hardness,impact resistance,adhesion were tested and electrochemical properties of PGT/WEP coatings were also evaluated.The results showed thatthe addition of the nano-PDA@GO-TiO2 composite into waterborne epoxy resin provided better physical properties than those of the coatings only using GO or TiO2 under the same percentage.Both the coating film properties and corrosion kinetical analyses indicated that thetechnique of PDA modified GO-TiO2 provided a potential application future as an additive into waterborne epoxy coatings.

Cite this article

SHU Jian-Kang , WANG Sun-Wei , RAO Yong-Tiao , BO Hao-Ran , FENG Tai-Cheng , DIAO Shu-Hua , LI Bei-Bei . Study on Physical Properties and Corrosion Kinetics of Dopamine Modified GO-TiO2 Nanocomposites in Waterborne Epoxy Resin[J]. Paint & Coatings Industry, 2019 , 49(8) : 1 -9 . DOI: 10.12020/j.issn.0253-4312.2019.8.1

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