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Ion‐leaching behaviors and corrosion morphology of glass fiber reinforced vinyl ester composites in sulfuric acid solution
Author(s) -
Li Yanan,
Yu Yunhua,
Jia Xiaolong,
Duan Shun,
Yang Xiaoping
Publication year - 2011
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.21225
Subject(s) - materials science , sulfuric acid , vinyl ester , composite material , corrosion , composite number , scanning electron microscope , leaching (pedology) , glass fiber , fiber , polymer , metallurgy , copolymer , environmental science , soil science , soil water
The corrosion mechanism of glass‐fiber reinforced vinyl ester composites was investigated by immersing composite samples in 40 wt% sulfuric acid solution at constant temperature of 35°C, 55°C, 65°C, and 75°C for periods up to 10,500 h. Results were characterized through weight gain tests, inductively coupled plasma analysis, and scanning electron microscope (SEM). Weight gains and ion‐leaching behaviors show that the composite interface has undergone significant changes due to a long corrosive environment, and the interface corrosion of composite increases with increasing the temperature. SEM images of surface and cross‐section of samples indicated that there exit in irreversible degradation reaction on resin matrix and interface in composite, which lead to the increase of weight gain and ion leachability, especially at high temperatures. POLYM. COMPOS., 2011. © 2011 Society of Plastics Engineers