纳米复合材料-英文版-01.pdf

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1、2011/2/7IntroductionofIntroductionofNanotechnology&PolymerNanocompositesMECH548DepartmentofMechanicalEngineeringHongKongUniversityofScience&Technology1Outline¾DefinitionofNanotechnologyandNanocomposites¾FundamentalsofCfCompositesTechnology¾TheBenefitsofDevelopingPolymerNanocomposites¾TheDiffer

2、encebetweenNanocompositesandTraditionalFillerEnhancedPolymers¾TheStructureandClassificationofPolymerTheStructureandClassificationofPolymerNanocomposites¾TheHistoryandMajorProgressoverthePastOneandHalfDecades212011/2/7WorldwidePolymerNanocompositesMarkettoExceed$211Millionby2008CompositeNewsSup

3、ersite:http://www.compositesnews.com/articles.asp?ArticleID=4951March3,2004-Mineralfillers,metals,andfibershavebeenaddedtothermoplasticsandthermosetsfordecadestoformcomposites.CdComparedtttoneatresiins,tthhesecomposiitteshhaveanumbberoffidimprovedpropertiesincludingtensilestrength,heatdistorti

4、ontemperature,andmodulus.Thusforstructuralapplications,compositeshavebecomeverypopularandaresoldinbillion-poundquantities.Thesefilledthermoplasticsareevensoldinlargervolumesthanneatthermoplastics.Furthermore,thevolumeoffillerssoldisroughlyequaltothevolumeofthermoplasticresinsold.Morerecently,a

5、dvancesinsynthetictechniquesandtheandtheabilitytocharacterizematerialsabilitytocharacterizematerialsreadilyonanreadilyonanatomicscalehasledtointerestinnanometersizedmaterials.Thesenanometer-sizedgrains,fibers,andplateshavedramaticallyincreasedsurfaceareacomparedtotheirconventionallysizedcounte

6、rparts.Polymernanocomposites(thermoplasticsandthermosets)combinethesetwoconceptsofincreasedsurfaceareaandsynergiesbetweenfillersandmatrices.3PolymerNanocompositemarkettogrowwellglobally,particularlyinUSAhttp://www.plastemart.com/upload/Literature/Polymer-Nanocomposites-grow-globally-in-USA.asp

7、?LiteratureID=1262•By2011,nanocompositedemandwillreach150,000tpa(tonnesperannum)inUSAasperFreedonia.Growthwillbefueledbydecliningpricesofnanomaterialsandcomposites,asproductionlevelsincreaseandtechnicalissuesconcerningthedispersionofnan