，，( 規(guī)律，但其導熱效果要好于Maxwell模型，分析認為是由于石墨烯獨特的片層結構導致的。的廣泛認同[1-11]。1995年，Choi等人[1]首次將納米顆粒添加到流體中發(fā)現(xiàn)其能顯著提高流體基液的換熱性能。Masuda[4]Al2O3-water、SiO2-water、TiO2-water等納米流體進行納米流體具有更好的傳熱性能[7]。湘等[10]通過實驗研究發(fā)現(xiàn)通過球磨處理過后的碳2.79%Wen等[11]0.8%濃度的碳納米管納米25%。的關注[12-18]。Amiri等[12]以水、乙二醇混合液為基液配制成石墨烯納米流體，發(fā)現(xiàn)其在0.1%65%，Baby等[13]以去離子水為基液配50℃0.05%時，相比基液的導熱系數(shù)提高了75%。Naghash等[15]0.1%水基石墨烯納米流體的導熱系數(shù)僅3.8%34%，并認為導熱系數(shù)沒有較大的提升可能是 ）;省教育廳重點科研項SE14301 圖1石墨烯的SEM 圖2石墨烯的XPS（XPS（TGAOH3SE1430450℃

3，50度下進行超聲水浴，配制成不同質量濃度的水基石墨烯納米流體[21]。并通過多功能體視顯微鏡（OM奧林巴斯公司）對溶液進行了簡單的形，

4OM5pHpH6pHpH=2、6pHZeta電勢分界線在+30mv與-30mvZeta電位高于+30v或者低于-圖7-8為兩種濃度溶液的Zeta電勢，從圖中可以看出0.01%濃度的溶液Zeta電勢為-65.41mv，遠低于-30mv0.1%Zeta70.01%Zeta

80.1%Zeta通過改良瞬態(tài)平面熱源法[22在環(huán)境溫度為26下對不同配比的石墨烯納米流體的0.1%1.5%的提升。MeasuredMeasuredMaxwellmodelThermalconductivityratio(kThermalconductivityratio(k/kThermalThermal

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