Effect of GO‐TiO 2 to waterborne epoxy resin on microstructure and anti‐corrosion properties

Abstract To enhance the anti‐corrosion of the waterborne epoxy resin coating, we filled GO‐TiO 2 into the coating with ultrasound and stirring method. Results show that coatings rendered optimum properties at GO‐TiO 2 content of 0.4 wt% with a hardness of 3H and rate of thermal weight loss reduce 8....

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Bibliographic Details
Published inJournal of applied polymer science Vol. 140; no. 40; pp. 1 - 11
Main Authors Wan, Tao, Wang, Bo, Wei, Shicheng, Yu, Kailun, Wang, Yujiang, Liang, Yi, Huang, Wei, Chen, Hao, Jiao, Zhongyuan
Format Journal Article
LanguageEnglish
Published 20.10.2023
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Summary:Abstract To enhance the anti‐corrosion of the waterborne epoxy resin coating, we filled GO‐TiO 2 into the coating with ultrasound and stirring method. Results show that coatings rendered optimum properties at GO‐TiO 2 content of 0.4 wt% with a hardness of 3H and rate of thermal weight loss reduce 8.3 wt%. After immersion for 30 days, coating exhibited water absorption ratio of merely 11.25% and open circuit potential of −0.871 V. After 1000 h of scratch‐neutral salt spray test, no obvious signs of corrosion were observed on surface. Moreover, Electrochemical results demonstrated that maximum impedance modulus of 0.4GO‐TiO 2 coating was 2.18 × 10 6  Ω cm 2 , corresponding to superior corrosion resistance. What is more, anticorrosion mechanism was discussed. In conclusion, Filling GO‐TiO 2 improved mechanical properties, thermal stability and corrosion resistance of waterborne epoxy resin coatings.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.54494