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ID:36809667
大小:2.41 MB
页数:67页
时间:2019-05-15
《PETTiO,2纳米复合材料的制备及性能研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、AllthephenomenontoldUSthattheadditionoftheTi02promotedthephotodegradationofPET.TheeffectofTi02paniclesonthenon-isothermalcrystallizationbehaviourofPETwasinvestigatedbydifferentialscanningcalorimetry(DSC).Threemethods,namely,Avrami,OzawaandMe,wereadopte
2、dtoanalyzethenon—isothermalcrystallizationdata.TheresultsshowedthattheTie2inPETactedaseffectivenucleationagent,andPETⅢ012crystallizedathighertemperaturebecauseofthepresenceofTie2.AlsoTi02acceleratedthecrystallizationofPET,shortedcrystallizationtime,and
3、improvedthedegreeofcrystallization.TGthermalanalyzerwasusedtoexaminethethermaldegradationbehaviorsofPETandPET/Ti02.ThethermaldegradationkineticswereanalyzedbyFriedmanmethodandOzawamethod.TheresultsshowedthatthethermalstabilityofPETfri02nanocompositeswa
4、sbetterthanthatofpurePET.TheCombustionPropertiesofpurePETandPET厂ri02compositewereinvestigatedbycombustion.Theresultsshowedthatthemassloss(%)andtheheatreleaserate(HRR)ofPE们i02a他alllowerthanthoseofpurePET.Atthesametime,Thethetotalsmokeproduction(TSP)ands
5、mokeproductionrate(SPR)ofPET厂ri02nanocopositeswerealinlelowerthanthoseofpurePET-AllthephenomenonshowedUSthatadditionofTi02improvedtheflameretardationofPET.Keywords:PET;Ti02;in—situpolymerization;nanocomposite:舞}】目录㈩IIIIIIIIIIIllItIIfY1733792第一章绪论⋯⋯⋯⋯⋯⋯
6、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l1.1引言⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..11.2纳米材料和无机纳米复合材料的特性⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21.2.1纳米材料的特性⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.31.2.2无机纳米复合材料的特性⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.41.3纳米Ti02的概述⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯51.3.1纳米Ti02的性质⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
7、⋯⋯.71.3.2纳米q'i02的制备⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯71.3.3纳米Ti02的应用⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯91.3.4纳米Ti02的表面改性⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ll1.4PET/Ti02纳米复合材料研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯131.5聚合物的降解⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.141.5.1可降解高分子的分类⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯151.5.2PET聚酯环境可降解性的目的与意
8、义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯161.6本论文研究的目的及意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。17第二章PET/Ti02纳米复合材料的制备及表征⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯192.1引言⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.192.2PETFFi02纳米复合材料的制备⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..192.2.1原料与仪器⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l92.2.2PET/Ti02纳米复合材
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