石墨烯泡沫应用于宽屏电磁波屏蔽ppt file wentao zha

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1、1Microcellulargraphenefoamforimprovedbroadbandelectromagneticinterferenceshielding石墨烯泡沫应用于宽屏电磁波屏蔽WentaoZhai翟文涛NingboInstitute,CAS中科院宁波材料所2016－10－18Ourresearchinterests我们的研究兴趣Developmentofextrusionfoamingtechnology开发连续挤出发泡技术ExtrusionfoamingsystemwithusingCO2astheblowingagent;以超临界CO2流体为发泡剂Re

2、gularPPwasusedtoproducePPfoam通用PP用作发泡体系Developmentofautoclavefoamingtechnology开发釜压发泡技术EPPEPPEPLAEPIETPUOurresearchinterests我们的研究兴趣4Developmentofmulti-functionalpolymerfoamfilm开发多功能聚合物发泡薄膜Polymer/filler/DMFPrecipitationDryingRedissolvingWatervaporinducedphaseseparationWatervaporH2OSolutionb

3、lendingPolymernanocompositePolymerfoamfilmDryingFilmcastingOurresearchinterests我们的研究兴趣5Advantagesof(microcellar)foaming微发泡的优势lightweight/轻量化;Thermalinsulation/隔热;Soundinsulation/隔音；Improvedimpact/cushionproperties/提高了冲击/缓冲性能；Reduceddielectricproperties/降低了介电性能Absorbingthemicrowaveasamazest

4、ructure;为电磁波提供迷宫结构；EMIshieldingmaterials电磁屏蔽材料Advantagesof(microcellar)foaming微发泡的优势EMinterferenceeffects电磁干扰CompromisetheperformanceandlifetimeofdevisesInterferewiththefunctionofothernearbycomponentsEMinformationleakage电磁泄露Computer,cellphone,Todamagethehumanbody危害人体HarmfuleffectsofEMwave电

5、磁波的危害8Radardetection雷达探测ElectromagneticstealthmaterialsRadardetection:BroadbandEMwavetransmittedorreceivedbyradarClassicalprotectionagainstEMIMetalsheetsBut:highdensityPoormechanicalflexibilityCorrosionLimitedtuningoftheshieldingeffectiveness(SE)AdvantagesbroughtbypolymersEasyshapingLightw

6、eightLowcostButmostpolymersaretransparenttotheEMIwaveMethodstoimprovetheEMISEofpolymersTodisperseelectricallyconductivefillersinpolymermatrixThecarbonmaterialssuchascarbonblack,graphite,carbonnanotube,graphenenanosheetsareusuallyselectedastheconductivefillers.ClassicalmaterialsforEMIshield

7、ing经典的电磁屏蔽材料NovelcellularstructureofpolymercompositesforEMIshieldingPolymer/conductivefillercompositePolymer/conductivefillercompositefoam金属材料的电磁屏蔽机制为反射损耗；聚合物复合材料以反射损耗为主；均易导致电磁波二次污染问题。入射波能量反射波能量透射波能量聚合物发泡材料以吸收损耗为主，有效避免电磁波的二次污染问题透射波能量入射波能量反射波能量TendencyofEMIs