磁性材料复合热熔胶电磁感应熔融时间分析研究 化学材料专业VIP免费

I摘要本论文用化学共沉淀法制备了Fe3O4纳米粒子，用XRD进行物相分析，用SEM进行形貌分析，并将其与EVA热熔胶复合制备复合热熔胶；通过调整EVA热熔胶制备原料配比制备粘接强度优异的热熔胶，对其进行了剥离强度测试确定出最佳配比；最后改变磁性材料（Fe3O4纳米粒子和铁粉）的百分比含量及目数与EVA热熔胶混合制成复合热熔胶膜，通过电磁感应器测试熔融时间。XRD测试结果表明所制备的产物是Fe3O4，立方系尖晶石结构。SEM分析结果表明，在反应温度为80℃，pH值为9的反应条件下制备出的Fe3O4粒径较小，局部有少量的团聚现象存在。剥离强度测试表明，EVA树脂100%、萜烯树脂100%、邻苯二甲酸丁苄酯15%的配方剥离力最大，其粘接性能最好，剥离强度为5.899KN/m。电磁感应加热测试表明，加入200%Fe3O4的复合热熔胶熔融时间最短，完全熔融时间为67秒；加入200%、150目铁粉的复合热熔胶熔融速度最快，完全熔融时间为46秒。关键词：磁性材料；复合热熔胶；电磁感应；熔融时间IIABSTRACTInthispaper,theFe3O4nanoparticleswerepreparedbychemicalcoprecipitationmethod,PhasewasanalyzedbyXRD,patternwasanalyzedbySEM,andthen,combinedwithEVAhotmeltadhesive.ThehotmeltadhesivewithexcellentbondingstrengthwaspreparedbyadjustingtheratioofrawmaterialpreparedbyEVAhotmeltIIIadhesive.Theoptimumratiowasdeterminedbythestrippingstrengthtest,thepercentagecontentandthemeshnumberofthemagneticmaterial(Fe3O4nanoparticlesandironpowder)werechangedintothecompositehotmeltadhesivefilmbytheEVAhotmeltadhesive,andthenthemeltingtimewastestedbytheelectromagneticinductor.TheresultsofXRDtestshowthatthepreparedproductsareFe3O4,cubicspinelstructure.TheresultsofSEManalysisshowthattheFe3O4particlesizeissmallerwiththereactiontemperatureof80℃andthepHof9,thereisasmallamountofagglomerationinthelocalarea.PeelstrengthtestshowthatEVAresin100%,terpeneresin100%,butylbenzylphthslste15%oftheformulastrippingforceisthelargest,itsadhesiveperformanceisthebest,peelstrengthof5.899kn/m.Theelectromagneticinductionheatingtestshowedthatthemeltingtimeofthecompositehotmeltadhesivewith200%Fe3O4istheshortest,thetotalmeltingtimeis67seconds,themeltingspeedofthecompositehotmeltadhesivewith200%and150meshisthefastest,andthetotalmeltingtimeis46seconds.Keywords:magneticmaterial;compoundhotmeltadhesive;electromagneticinduction;meltingtimeIV目录摘要..............................................................................................I目录.............................................................................................III1绪论............................................................................................11.1热熔胶...............................................................................11.1.1热熔胶简介..............................................................11.1.2EVA热熔胶的简介................................................21.2复合热熔胶国内外研究现状...........................................31.3磁性纳米材料...................................................................41.3.1磁性材料的分类.....................................................51.3.2磁性材料的性能.....................................................51.3.3磁性材料铁粉简介.................................................7V1.3.4磁性Fe3O4简介......................................................81.3.5Fe3O4国内外研究现状.........................................101.4电磁感应简介................................................................111.5课题研究的意义及内容................................................121.5.1课题研...