Epoxy/Nano-SiO2 Anticorrosion Coatings Synthesized by Different Molar Ratio of Tetraethyl orthosilicate (TEOS) and Tetramethyl orthosilicate (TMOS)

Epoxy/nano-SiO2 composite coatings were carried out by using epoxy with different TEOS/TMOS molar ratio. Nano-silica particles, which were synthesized by different molar ratio of tetraethyl orthosilicate (TEOS) and tetramethyl orthosilicate (TMOS), manifested different characteristics in particle si...

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Bibliographic Details
Published inInternational journal of electrochemical science Vol. 14; no. 12; pp. 10641 - 10650
Main Authors Li, Shaoxiang, Wang, Jiaping, Qu, Wenjuan, Cheng, Jiaji, Lei, Yunna, Liu, Meng, Wang, Dong
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2019
Subjects
Corrosion
Epoxy coatings
Nano-silica
Nanoparticles
Epoxy coatings
Nanoparticles
Corrosion
Nano-silica
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Summary:Epoxy/nano-SiO2 composite coatings were carried out by using epoxy with different TEOS/TMOS molar ratio. Nano-silica particles, which were synthesized by different molar ratio of tetraethyl orthosilicate (TEOS) and tetramethyl orthosilicate (TMOS), manifested different characteristics in particle size and modifier graft coverage. The structure was analyzed by FT-IR, XRD and SEM. The particle size of the silica was correspondingly reduced and the surface coverage of the APTES decreased with the TMOS content reduced. Thus, the particle size and surface coverage of the APTES play an important role in corrosion resistant of epoxy/nano-SiO2 composite coatings. The results showed that the composite coating had the best anticorrosion effect when the molar ratio of TEOS / TMOS was 1: 1.
ISSN:1452-3981
1452-3981
DOI:10.20964/2019.12.06