PREPARATION AND PROPERTIES OF POLYESTER BASED NANOCOMPOSITES FOR BARRIER PACKING MATERIALS，2008纳米填充阻燃聚合物及复合材料国际学术研讨会（10.16-10.17，北京）-中国聚合物网,论文下载

PREPARATION AND PROPERTIES OF POLYESTER BASED NANOCOMPOSITES FOR BARRIER PACKING MATERIALS

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关键词：

nylon MXD6T oligomer silicon dioxide PET nanocomposite

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389K

所属学科：

分子表征

来源：

2008纳米填充阻燃聚合物及复合材料国际学术研讨会（10.16-10.17，北京）

简介：

Thepermeabilityofpolymerisdeterminedbyitschainconfiguration,phasemorphologyandtheinteractionwiththepenetrant.Basedontheseprinciples,thepermeabilityofthepolyesterofpoly(ethyleneterephthalate)isenhancedthroughdifferentmodifiersinordertoapplyittobarrierpackingbottle.Inthispaper,poly(m-xylyleneadipamide-terephthalylamide)(MXD6T)-nanometersilicondioxide(SiO2)nanocomposite(NMXD6T)oligomerwithSiO2loadfrom5%to30%(bymass)waspreparedandusedtoimprovethebarrierpropertyofpolyesterbottlematerials.InpreparingNMXD6T,silicaisin-situpolymerizedwithhexanediacid,terephthalicacid(TPA),alkylandaromaticdiamine.Thedifferentmolarratioofhexanediacidtoterephthalicacidwiththesamemolardiamineisdesignedtogivethecompositeswithdifferentviscosity,thermalperformanceandthebarrierproperties.The3-10timesofenhancedpermeabilityofthesepolyestermatrixnanocompositeswiththisaboveMXD6Ttopurepolyesterresinsarereported.TherelationshipofNMXD6T’sconfigurationandthepermeabilitypropertiesofpolyesternanocompositeischaracterizedbytechniquesofthedynamicscanningcalorimeter(DSC),FTInfrared,andTransmissionElectronicMicroscopy(TEM).DSCshowsthatNMXD6Tistotallyamorphous.FTIRshowstheexistenceofsilicon-oxygenbondformedinthenanocomposite,andTEMindicatesanaveragesizefrom30nmto100nmofSiO2particlesbeingphaseseparatedfromMXD6Tmatrix,whilewellbondedtothepolyesterchains.ItisconcludedthattheNMXD6T-PETnanocompositesmaybeoneofthebestwaytoenhancethebarrierpropertiesofpolyestersfortheirpackingapplication.

作者：

Fusheng Luo

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2009-02-16 15:23:37

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gl-xu 2009-03-03 20:21:32

还是有点麻烦啊

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