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http://dx.doi.org/10.7473/EC.2015.50.2.103

Determination of Epoxy/Anhydride Mixing Ratio for the Highly Silica Filled Compounds with Chromium (III) Octoate Catalyst  

Lee, Noori (Department of Chemical Engineering, Pusan National University)
Lee, Dong-Hoon (Department of Chemical Engineering, Pusan National University)
Lee, Jung Hoon (Composites & Communication Device Materials Business Division, Kukdo Chemical, Co., Ltd.)
Min, Kyeong-sik (Composites & Communication Device Materials Business Division, Kukdo Chemical, Co., Ltd.)
Kang, Sung Yun (Research & Development Institute, Hanwha Corporation)
Seo, Seungkil (Research & Development Institute, Hanwha Corporation)
Rho, Byung Lae (Defense Industry Technology Center, Agency for Defense Development)
Kim, Wonho (Department of Chemical Engineering, Pusan National University)
Publication Information
Elastomers and Composites / v.50, no.2, 2015 , pp. 103-109 More about this Journal
Abstract
In this study, epoxy/anhydride mixing ratio for the highly silica filled compounds with chromium (III) octoate catalyst was investigated at a low curing temperature ($71^{\circ}C$ for 40 hr) by evaluating the compressive strength with the weight ratio ranges from 0.3/1.0 to 1.0/1.0 of epoxy part (Part A)/anhydride part (Part B). In case of epoxy/anhydride compounds used surface unmodified silica by coupling agent, these compounds need excess anhydride unlike the weight ratio in the conventional epoxy/anhydride compounds. In curing behavior, the epoxy/anhydride compounds containing chromium (III) octoate showed high conversions at $71^{\circ}C$ for 40 hr, even if a dipropylene glycol (DPG) was not used as a polymerization initiator. Also, DPG leads to a poor epoxy network structure. In conclusion, the appropriate weight ratio of Part A/Part B of highly silica filled epoxy/anhydride compounds with chromium (III) octoate catalyst is 0.5/1.0 and the maximum amounts of silica is 1470 phr of epoxy resin.
Keywords
epoxy-anhydride compounds; chromium (III) octoate catalyst; silica; mechanical properties; curing behavior;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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