An in-situ sol-gel approach to create functional PET/ nano-TiO2 hybrid resin during PET synthesis，2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）-中国聚合物网,论文下载

An in-situ sol-gel approach to create functional PET/ nano-TiO2 hybrid resin during PET synthesis

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in-situ sol-gel process PET nano-TiO2 Fiber processing
UV shielding function

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576K

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分子表征

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2009先进纤维与聚合物材料国际学术会议（ICAFPM，10.21-10.24，上海）

简介：

In-situsol-gelprocessisoneofthemostimportantmethodsforpreparationoforganic-inorganichybridswithhighperformanceproperties.Inpresentwork,theresultsshownthatintroducingthetetrabutylorthotitanate(TBOT)hasnoeffectsontheesterificationdegree,themolecularweightanditsdistribution,thermalpropertiesandfiberprocessabilityofresultedPETbasehybridresin.Thesphere-likenano-TiO2hasbeenin-situformedandisalmostmono-andwell-dispersedintoPETmatrix.ItisattributedtopartiallyorganicmodificationasshownbyFTIRwhileitisin-situformed.TheresultedPETcompositeswithlowerthan0.5wt%nano-TiO2contentcanbewindedwith800rpmwindingspeedatstablespinpackpressureunder305℃chesttemperatureand35.6g·ml-1pumpdelivery.Theas-spunfibershavegooddrawingabilityandthetensilestrengthatbreakoftheresultedfiberscanamounttoabout3.8cN/dtex.TheseindicatethattheresultedPETresinswithlowerthan0.5wt%nano-TiO2contenthavegoodspinnability.UVshieldingabilityofthefabricisexcellent.ItsUPF(UVprotectionfactor)offabricishigherthan50asitsnano-TiO2containingishigherthan0.3wt%.Therefore,itisapromisingwaytodevelopfunctionalpolyesterbasehybridmaterialsincludingfiber,plasticandcoatingbyourso-calledbothin-situfabricationmethod.

作者：

GUO Cong,SUN Bin, SHI Yuyuan, LI Kaixia, WU Wenhua, YU Hao, WANG Wei，ZHU Meifang

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2010-04-13 16:24:31

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