Effect of graphene oxide on mechanical characteristics of polyurethane foam

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;

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 $\small{-163^{\circ}C}$. 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
1.
유리섬유 강화 폴리이소시아누레이트 폼 개발 및 극저온 환경 하 기계적 성능평가,김정대;김정현;안재혁;박성균;박강현;이제명;

한국마린엔지니어링학회지, 2017. vol.41. 9, pp.813-818
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