Improvement of anticorrosion ability of epoxy matrix in simulate marine environment by filled with superhydrophobic POSS-GO nanosheets

Yuwei Ye; Dawei Zhang; Tong Liu; Zhiyong Liu; Wei Liu; Jibin Pu; Hao Chen; Haichao Zhao; Xiaogang Li

doi:10.1016/j.jhazmat.2018.10.040

Improvement of anticorrosion ability of epoxy matrix in simulate marine environment by filled with superhydrophobic POSS-GO nanosheets

J Hazard Mater. 2019 Feb 15:364:244-255. doi: 10.1016/j.jhazmat.2018.10.040. Epub 2018 Oct 16.

Authors

Yuwei Ye¹, Dawei Zhang², Tong Liu³, Zhiyong Liu², Wei Liu², Jibin Pu³, Hao Chen⁴, Haichao Zhao⁵, Xiaogang Li⁶

Affiliations

¹ Corrosion & Protection Center, University of Science & Technology Beijing, Beijing, 100083, China; Key Laboratory of Marine Materials and Related Technology, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
² Corrosion & Protection Center, University of Science & Technology Beijing, Beijing, 100083, China.
³ Key Laboratory of Marine Materials and Related Technology, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.
⁴ School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China. Electronic address: chenhao_168168@163.com.
⁵ Key Laboratory of Marine Materials and Related Technology, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China. Electronic address: zhaohaichao@nimte.ac.cn.
⁶ Corrosion & Protection Center, University of Science & Technology Beijing, Beijing, 100083, China; Key Laboratory of Marine Materials and Related Technology, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo, 315201, China. Electronic address: lixiaogang@ustb.edu.cn.

PMID: 30368062
DOI: 10.1016/j.jhazmat.2018.10.040

Abstract

Super-hydrophobicity polyhedral oligomeric silsesquioxane-modified graphene oxide (POSS-GO) was synthesized by one-step reaction between graphene oxide (GO) and aminopropylisobutyl polyhedral oligomeric silsesquioxane (POSS-NH₂). Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) spectra indicated that the POSS were successfully connected to the edge and surface of GO nanosheets. Scanning probe microscope (SPM) and transmission electron microscope (TEM) images demonstrated that the POSS-GO with a thickness of 1.58 nm presented a stably dispersion in anhydrous ethanol. Results from electrochemical behaviors showed that the proper incorporation of POSS-GO could availably improve the anticorrosion ability of epoxy based coatings in simulate marine environment (3.5 wt% NaCl solution). The good dispersion of POSS-GO helped to fill the original defect and enhanced the complication of penetration path. The super-hydrophobicity of POSS-GO was beneficial to the reduction of actual contact zone. The synergistic effect of good dispersion and super-hydrophobicity promoted the enhancement of anticorrosion ability for composite coatings.

Keywords: Barrier effect; Corrosion; Dispersion; POSS-GO; Super-hydrophobicity.

Publication types

Research Support, Non-U.S. Gov't