Preparation and characterization of magnetic response polymer nanocomposites，2005年新型纤维与聚合物材料国际学术会议（10.19-10.21，上海）-中国聚合物网,论文下载

Preparation and characterization of magnetic response polymer nanocomposites

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magnetic response polymer nanocomposites

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分子表征

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2005年新型纤维与聚合物材料国际学术会议（10.19-10.21，上海）

简介：

Themagneticresponsenanometermaterial,anew-typefunctionalandsmartmaterial,isofapplicationpotentialinmanyareassuchasbioengineering,cytology,aviationandspaceflight.Thenano-sizedLa-dopedFe3O4magneticfluidwithstrongermagnetismthanpureFe3O4waspreparedbythetitrationhydrolyzationinaqueoussolutionatroomtemperature.Onthisbasis,themagneticandconductingLa-dopedFe3O4-PANI(polyaniline)polymernanocompositeshavebeensuccessfullyreparedinthepresencepresenceofthenano-sizedLa-dopedFe3O4magneticfluid.Thestructure,particlemorphology,elementcomponentsofresultingcompositeswerecharacterizedwithX-raydiffraction(XRD),transmissionelectronmicroscopy(TEM)andinductively-coupledplasmaatomicemissionspectrometer(ICPAES),andthemagneticpropertieswereevaluatedonavibratingsamplemagnetometer(VSM).TEMimagesofLa-dopedFe3O4andLa-dopedFe3O4-PANIparticlesshowthediametersarefrom20to30and30to40nm,respectively.ThemagneticpropertiesoftheLadopedFe3O4-PANIcompositesdependontheLa-dopedFe3O4content.Inaddition,thesuperparamagneticbehaviorsofthesynthesizedsampleswereconfirmedbymagneticcharacterization.SotheLa-dopedFe3O4-PANIcompositeswouldbemadeaselectrical-magneticshieldsandmicrowaveabsorbingmaterials.

作者：

Jimei Ma Yun Wang Xinyuan Shen

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2007-07-30 16:21:53

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