CAJ | 학술논문

以石墨为原料，经XRD、T EM 及IR表征证明采用强氧化法在实验室成功合成了氧化石墨烯。经亲水性实验表明该氧化石墨烯产品为亲水性材料，其接触角为316．°；SEM 表征表明该氧化石墨烯产品在乙二醇中的分散性好。在没有分散剂的情况下合成了氧化石墨烯／乙二醇导热纳米流体，并确定出氧化石墨烯在常温下分散在乙二醇中的最佳质量分数为01．％，其稳定时间可达15 d以上。在25℃时测得分别以蒸馏水、乙二醇和丙二醇为基液的质量分数为01．％的氧化石墨烯纳米流体的热导率分别增加27．2％，54．2％和556．％。
이석묵위원료，경XRD、T EM 급IR표정증명채용강양화법재실험실성공합성료양화석묵희。경친수성실험표명해양화석묵희산품위친수성재료，기접촉각위316．°；SEM 표정표명해양화석묵희산품재을이순중적분산성호。재몰유분산제적정황하합성료양화석묵희／을이순도열납미류체，병학정출양화석묵희재상온하분산재을이순중적최가질량분수위01．％，기은정시간가체15 d이상。재25℃시측득분별이증류수、을이순화병이순위기액적질량분수위01．％적양화석묵희납미류체적열도솔분별증가27．2％，54．2％화556．％。
Graphene oxide was successfully synthesized in the laboratory by the strong oxidation method using graphite as raw materials ,and that was proved by XRD ,TEM and IR .The tests show that graphene oxide is a hydrophilic material ,and the contact angle of 31 6.° .SEM show that the dispersion of graphene oxide in ethylene glycol is good .graphene oxide/ethylene glycol nanofluids was synthesized without chemical dispersants at room temperature ,and it was determined that the optimum mass fraction of graphene oxide which dispersed in ethyl‐ene glycol was 0 1.% .and stability time of nanofluids is up to half a month .The enhancement of thermal con‐ductivity for graphene oxide nanofluids at 25 ℃ for a mass fraction of 0 .1% are up to 27 .2% ,54 .2% ,and 55 6.% ,when the base fluids are distilled water ,ethylene glycol and propyl glycol ,respectively .