ram-相变微胶囊红外微波隐身复合材料

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1、RAM-相变微胶囊红外微波隐身复合材料基金项目：国家自然科学基金(51465036)；甘肃省青年科技基金（1506RJYA089）作者简介：崔锦峰(1964-)，男，教授；联系人：郭军红，高级工程师，电话：13669348293，E-mail：504675669@qq.com。崔锦峰，邵竞尧，许芬，郭军红*，慕波，杨保平（兰州理工大学石油化工学院，甘肃省化学化工实验教学示范中心，甘肃兰州730050）摘要：采用种子微悬浮聚合法，以月桂酸为相变芯材，苯乙烯-二乙烯基苯共聚物为壁材，分别掺杂纳米Fe3O4和还原

2、氧化石墨烯两种雷达吸波材料(RAM)，制备了具有红外、微波兼容隐身功能的微胶囊材料(RAM-MCPCM)。采用差示扫描量热仪(DSC)、扫描电子显微镜(SEM)、振动样品磁强计(VSM)和矢量网络分析仪等对材料的形貌和性能进行了表征和测量。结果表明：采用种子微悬浮聚合法制备的相变微胶囊(MCPCM)微观形貌呈表面光滑规则球状，芯壁质量比为1.5:1时具有最优的相变潜热和包覆率，分别为99.2J/g和57.4%；RAM-MCPCM微观形貌呈表面微凸球状，仍然具有较高相变潜热；涂层厚度0.5mm时，Fe3O4-

3、MCPCM/环氧涂层在5.25GHz时达到最大吸收峰值-0.54dB，RGO-MCPCM/环氧涂层在8.8GHz时达到最大反射损耗-1.21dB，两种涂层在环境温度升高时都具有一定控温作用，具备红外微波兼容隐身性能。关键词：红外隐身；微波吸收；相变材料；微胶囊；兼容隐身中图分类号：TB34RAM-MCPCMInfraredandMicrowaveStealthCompositesCUIJin-feng，SHAOJing-yao，XUFen，GUOJun-hong*，MUBo，YANGBao-ping(The

4、ExperimentTeachingDemonstrationCenterforChemistryandChemicalEngineeringofGansuProvince,PetrochemistryCollege，LanzhouUniversityofTechnology，Lanzhou730050，China)Abstract:Microcapsuleswithinfraredandmicrowavecompatiblestealthfunction(RAM-MCPCM)arepreparedwith

5、themethodoftheseededmicro-suspensionpolymerization,whichusesPoly(styrene-divinylbenzene)aswallmaterialandlauricacidascorematerial,dopingtwodifferenttypesofradarabsorbingmaterial(RAM),nano-Fe3O4andreducedgrapheneoxide.Themicrostructureandpropertiesofmicroca

6、psulesarecharacterizedandmeasuredthroughdifferentialscanningcalorimeter(DSC),scanningelectronmicroscopy(SEM),vibratingsamplemagnetometer(VSM)andvectornetworkanalyzer.Theresultsindicatethatthephasechangemicrocapsules(MCPCM)preparedbytheseededmicro-suspensio

7、npolymerizationareregularlysphericalwithsmoothsurface.Withthecorewallmassratioof1.5:1,theMCPCMhavethebestthelatentheatofphasechangeandencapsulationratio,99.2J/gand57.4%respectively.ThemorphologyoftheRAM-MCPCMwhichstillhaverelativelyhighlatentheatofphasecha

8、ngeareaslightlyconvexsphericalsurface.Withthecoatingthicknessof0.5mmTheFe3O4-MCPCM/epoxycoatingat5.25GHzreachesthemaximumabsorptionpeakof-0.54dBandtheRGO-MCPCM/epoxycoatingat8.8GHzreachesmaximumreflectivityof