葡萄糖改性低密度聚乙烯脫氧塑料制備及其脫氧性能的研究

1、湖北大學(xué)碩士學(xué)位論文葡萄糖改性低密度聚乙烯脫氧塑料制備及其脫氧性能的研究姓名：徐利平申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：葉正濤20090501AbstractThemoistureabsorptionpropertiesoftheglucosegraftedLDPEseriesspecimensweremostlyinvestigatedinthispaper，whereintheglucosegraftedLDPEwas

2、preparedinthepresenceofeerieammoniumnitrate(CAN)Meanwhile，theeffectsofthecontentsofglucoseandCANonthegraftingdegree，meltingtemperature，crystallinityandtensilepropertiesoftheglucosegraftedLDPEwerediscussedOntheotherhand，t

3、heoxygendepletion，tensileanddegradationpropertiesofLDPEandglucose—graftedLDPEfilledwithMFe／SAoxygenscavengerswerecomparedandinvestigatedTheresultssuggestedthatthemoistureabsorptionpropertiesofglucosegraftedLDPEspecimensa

4、resignificantlyhigherthanthoseofLDPEandCANoxidizedLDPEspecimensmeasuredatanytestingtime，respectivelyThegraftingdegreeandmoistureabsorptionpropertiesofglucosegraftedLDPEincreaseinitiallyastheCANcontentsincrease，andreacham

5、aximumvalueastheCANcontentsreach04phrandthenreducereverselyastheCANcontentsincreasesequentiallyBesides，thegraftingdegree，meltingtemperature，crystallinityandtensilepropertiesoftheglucosegraftedLDPEreduceastheCANcontentsin

6、creaseTheoxygendepletionpropertiesL95[SAx(MFe)y]5andML95[SAx(MFe)y】5reachthebestastheweightratiosofSA／MFeapproachto7／3and1／9，respectivelyInfact，theoxygendepletionefficiencyofeachML95[SAx(MFe)y15specimenimprovedevenbetter

7、thanthatofthecorrespondingL95[SAx(MFe)y】5specimenwiththesameloadingofoxygenscavengercompoundThe6fand研valuesoftheL95[SAx(MFe)y]5andML95[SAx(MFe)y]5filmspecimensincreasesignificantlyastheirSAloadingspresentinoxygenscavenge

8、rcompoundsreduceFurthermore，theL95[SA7(MFe)3]sandML95[SAl(MFe)915filmspecimenswerefoundasefficientoxygenabsorbableresinstopreventthelipidoxidationofamodeledfoodsampleMoreoverscanningelectronmicroscopeandenergydispersiveX

9、raysanalysisofthecompositionsonthesurfacesofLgs[SAx(MFe)y]5andML95[SAx(MFe)y]5seriessamplessupposedthattheMFepowdersfoundinL95[SAxMFey]5andML95[SAxMFey]5samplesweresurroundedbutnotfullywrappedbySAasweightratiosofSAtoMFea

10、relessthanorequalto7／3and5／5，butwerenearlywrappedbytheSApowdersasweightratiosofSAtoMFeatefarmorethan7／3and5／5，respectivelyInfact，the6fand￡fvaluesoftheL95[SAx(MFe)y]5filmspecimensarebetterthanthoseofthecorrespondingML95[S