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Effect of graphene oxide on mechanical characteristics of polyurethane foam
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 Title & Authors
Effect of graphene oxide on mechanical characteristics of polyurethane foam
Kim, Jong-Min; Kim, Jeong-Hyeon; Choe, Young-Rak; Park, Sung Kyun; Park, Kang Hyun; Lee, Jae-Myung;
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 Abstract
In the present study, graphene oxide based polyurethane foams were manufactured as a part of the development process of mechanically strengthened polyurethane foam insulation material. This material is used in a liquefied natural gas carrier cargo containment system. The temperature of the containment system is . First, graphene oxide was synthesized using the Hummers' method, and it was supplemented into polyol-isocyanate reagent by considering a different amount of graphene oxide weight percent. Then, a bulk form of graphene-oxide-polyurethane foam was manufactured. In order to investigate the cell stability of the graphene-oxide-polyurethane foam, its microstructural morphology was observed, and the effect of graphene oxide on microstructure of the polyurethane foam was investigated. In addition, the compressive strength of graphene-oxide-polyurethane foam was measured at ambient and cryogenic temperatures. The cryogenic tests were conducted in a cryogenic chamber equipped with universal testing machine to investigate mechanical and failure characteristics of the graphene-oxide-polyurethane foam. The results revealed that the additions of graphene oxide enhanced the mechanical characteristics of polyurethane foam. However, cell stability and mechanical strength of graphene-oxide-polyurethane foam decreased as the weight percent of graphene oxide was increased.
 Keywords
Polyurethane foam;Graphen-oxide;Cryogenic test;Liquefied natural gas;
 Language
Korean
 Cited by
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