The effect of different exposure conditions on the pull-off strength of various epoxy resins SCIE SCOPUS

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Title
The effect of different exposure conditions on the pull-off strength of various epoxy resins
Author(s)
Park, Jun Kil; Kim, Min Ook
KIOST Author(s)
Park, Jun Kil(박준길)Kim, Min Ook(김민욱)
Publication Year
2021-06
Abstract
This study aims to investigate the interfacial bond between epoxy resin coatings and concrete substrates exposed to different exposure conditions. As test variables, five different epoxy resins, three exposure conditions, and four exposure times were selected and investigated. The exposure conditions significantly affected the pull-off strength. As the exposure times increased, the pull-off strength decreased, except for bisphenol A with cresyl glycidyl ether (BGEI). BGEI showed the highest pull-off strength during exposure to tap water (3.78 MPa) and seawater (3.66 MPa). However, adding phenolic novolac resin and hexanediol diglycidyl ether, which were reactive diluents, reduced the pull-off strength during tap water exposure compared to that observed during seawater exposure, owing to the penetration of tap water. Therefore, the pull-off strength in the exposure environment must be considered before using reactive diluents and fillers in epoxy coatings.
ISSN
2352-7102
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/39670
DOI
10.1016/j.jobe.2021.102223
Bibliographic Citation
Journal of Building Engineering, v.38, 2021
Publisher
Elsevier BV
Subject
Coatings; Ethers; Phenolic resins; Seawater; Concrete substrates; Diglycidyl ether; Exposure conditions; Exposure environment; Interfacial bonds; Pull off strengths; Reactive diluents; Seawater exposures; Epoxy resins
Keywords
Interfacial bond; Epoxy resin; Concrete substrate; Exposure condition; Exposure period
Type
Article
Language
English
Publisher
Elsevier BV
Related Researcher
Research Interests

Marine Structures,Recycling,Ocean Energy,해양구조물,해양쓰레기 재활용,해양에너지

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