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Functionalized boron carbide for enhancement of anticorrosion performance of epoxy resin
Author(s) -
Wang Jizhuang,
He Yi,
Xie Zhengfeng,
Chen Chunlin,
Yang Qiangbin,
Zhang Chunli,
Wang Binyan,
Zhan Yingqing,
Zhao Tianhong
Publication year - 2018
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.4181
Subject(s) - epoxy , materials science , coating , scanning electron microscope , dielectric spectroscopy , composite material , microstructure , x ray photoelectron spectroscopy , transmission electron microscopy , fourier transform infrared spectroscopy , boron carbide , surface modification , dispersion (optics) , chemical engineering , electrochemistry , nanotechnology , optics , chemistry , physics , electrode , engineering
In this study, epoxy coatings were modified by adding various compositions of B 4 C particles. In order to achieve proper dispersion of particles in the epoxy coating and increasing chemical interactions between particles and polymeric coating, the surface of the B 4 C particles was treated with γ‐(2,3‐epoxypropoxy) propytrimethoxysilane (KH560). The surface modification and microstructure of B 4 C were characterized by Fourier transform infrared, X‐ray diffraction, X‐ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. Electrochemical impedance spectroscopy was also used to evaluate the impedance of coatings. The results revealed that the KH560 not only enhanced the interaction between B 4 C particles and epoxy resin but also exhibited a remarkable ability to improve the anticorrosion performance of epoxy resin. The epoxy coating with the 3 wt% B 4 C‐KH560 particles exhibited the best anticorrosion performance, which can be attributed to the best uniform dispersion of the B 4 C‐KH560 particles, and the particles effectively block the aggressive species (Cl − , O 2 , and H 2 O) from the coating.