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ID:32505388
大小:6.60 MB
页数:361页
时间:2019-02-09
《【7A文】胶体化学专业英语.ppt》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、ColloidChemistry(胶体化学专业英语)ContentChapter1.ColloidandInterfaceChemistryChapter2.SedimentationanddiffusionandtheirequilibriumChapter3.OsmoticPressureandDonnanEquilibriumChapter4.TheRheologyofDispersionsChapter6.SurfaceTensionandContactAngleChapter7.AdsorptionfromsolutionandmonolayerformationCha
2、pter8.ColloidalstructuresinsurfactantsolutionChapter9.AdsorptionatGas-SolidinterfaceChapter10.wanderWaalsForcesChapter11.ElectricaldoublelayerandDoublelayerinteractionsChapter12.ElectrophoresisandotherelectrokineticphenomenaChapter13.Electrostaticandpolymer-inducedcolloidstabilityChapter1.Col
3、loidandInterfaceChemistry1.1ColloidChemistry1.Colloid(胶体)?Colloid:Adispersionoftheparticlethathassomelineardimensionbetween1and1000(100)nm.Definitionofdispersion:Dispersion(dispersionsystem)dispersedphase(分散相)continuousphase(连续相)ordispersionmedium(分散介质)Anysolid,liquidandgascanbeasadispersedph
4、aseorcontinuousphase.2.Classificationofdispersions(分散体系分类)Truesolution(分子分散体系):Thereisnotinterfacebetweendispersedphaseanddispersionmedium.Colloiddispersion(colloidsolution)(胶体分散体系:Lineardimensionofparticlesisbetween1and1000(100)nm.Coarsedispersion(粗分散体系):Dimensionofparticles>1000nm.3.Classif
5、icationofcolloids(胶体体系分类)Lyophiliccolloids(亲液胶体)ColloidsLyophobiccolloids(憎液胶体)Colloidsareclassifiedonthebasisoftheaffinityofthesurfaceoftheparticlestothecontinuousphase.Lyophilic(solventloving)orhydrophilic(wateristhemediumorsolvent)Lyophobic(solventfearing)orhydrophobic(wateristhemediumorso
6、lvent)(1)Lyophiliccolloids:MacromolecularsolutionPolymersolution.B.Micelle(胶束、胶团)solutionMicellesareclusters(团、束)ofsmallmoleculesthatformspontaneously(自发的)inaqueoussolutionmostly.Micellesolutionisoftencalledassociationcolloids(缔合胶体).TypeofmicelleCylindricalmicelleBilayerBilayervesicleInverted
7、micelleMicrotubuleWhy?A.Thesizeofmacromoleculesandmicellesisintherangeof1-1000nm.B.Thereisnotinterfacebetweendispersedphaseandcontinuousphase.Thesolutionisstablethermodynamiclly(热力学).C.Propertiesofthesolutionslikecolloids.suchasoptical(光学的),r
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