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http://dx.doi.org/10.12654/JCS.2012.28.2.131

Tuning Exothermic Curing Reaction of Hydrogenated Bisphenol A Epoxy Resins for Stone Conservation  

Choi, Yong-Seok (Department of Chemical Engineering, Hanyang University)
Park, You-Jin (WCU Program Department of Energy Engineering, Hanyang University)
Kang, Yong-Soo (WCU Program Department of Energy Engineering, Hanyang University)
Won, Jong-Ok (Department of Chemistry, Sejong University)
Kim, Jeong-Jin (Department of Earth and Environmental Sciences, Andong University)
Kim, Sa-Dug (Conservation Science Center, National Research Institute of Cultural Heritage)
Publication Information
Journal of Conservation Science / v.28, no.2, 2012 , pp. 131-139 More about this Journal
Abstract
The exothermic cure kinetics of epoxy resin was controlled by hardener containing fast and slow curing agents. The epoxy risen comprises hydrogenated bisphenol A-based epoxide (HBA), fast curing agent (FH) and slow curing agent poly(propyleneglycol)bis(2-aminopropylether) (SH). Talc was used as an inorganic additive. In the process of curing, cure kinetics along with temperature was monitored by differential scanning calorimeter (DSC) and thermocouple to show that the temperature increase was well controlled by adjusting the hardener mixture. Additionally, bending and tensile strengths of the epoxy/talc composites were also measured to be lower and higher with the amount of the talc inorganic additive, respectively. It is thus concluded that the increase in the temperature during exothermic curing reaction and mechanical properties of epoxy resins are tuned by optimizing hardener mixture for successful stone conservation.
Keywords
Epoxy; Curing agent; Inorganic additive; Exothermic reaction;
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Times Cited By KSCI : 1  (Citation Analysis)
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