V.35,no.4,Dec 2023 https://doi.org/10.5764/TCF. Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2018 / V.30,no.2,Jun Title Study on Thermal and Mechanical Properties of Epoxy Resin Nanocomposites with the Graphene Oxide Authors Ji-hyun Sim, Seong-hun Yu, Jong-hyuk Lee, Gun-soo Kim1, Jin-sung Chon1 and Sung-min Park Institution/Affiliations DYETEC, 1T4L Pages/Total page pp.98 ~ 106 / 9 Language Korean Abstract Abstract In this study, graphene oxide(GO) was synthesized by using Hummer’s method. Then, GO was used as a additive for epoxy resin nanocomposites that were prepared by mixing Tetraglycidyl diamino diphenyl methane(TGDDM) and hardner(MDEA+ M-MIPA). Thermal and mechanical properties of epoxy resin nanocomposites were confirmed by analytical methods such as TG-DTA, DMA, fracture toughness, tensile strength, and flexural strength. The fracture surfaces of epoxy resin nanocomposites with different content of the GO were observed by a Scanning Electron Microscope(SEM). The mechanism for mechanical properties of epoxy resin nanocomposites was analyzed by modeling of nanocomposites with different GO weight. Due to the GO, both the heat resistance and the glass transition temperature of the epoxy resin nanocomposites were improved. Interestingly, when 0.1wt.% of GO was added to the epoxy resin/hardner mixture, the properties of mechanical increased compared with the neat epoxy resin. This results were caused by an aggregation between the GO. Keywords Keywords TGDDM, graphen oxide, epoxy resin nanocomposites, heat resistance, fracture toughness, aggregation Download   Reference http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2018_v30n2_98&ordernum=