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1、第64卷第6期化工學(xué)報(bào)Vo1.64No.62013年6月CIESCJournalJune2O13不同淀粉類型TPS/PBS共混體系的形貌與黏彈行為李紀(jì)偉。,羅學(xué)剛,林曉艷。,黃永華(西南科技大學(xué)材料科學(xué)與工程學(xué)院,四川綿陽621010;西南科技大學(xué)生物質(zhì)材料教育部工程研究中心,四川綿陽621O1O)關(guān)鍵詞:直鏈淀粉含量;熱塑性淀粉;聚丁二酸Tz醇酯;微觀形貌;黏彈行為DOI:10.3969/j.issn.0438-1157.2013.06.053中圖分類號(hào):TK02文獻(xiàn)標(biāo)志碼:A文章編號(hào):O438—115
2、7(2013)06—23OO—O6MorphologyandviscoelasticbehaviorofPBS/TPSblendscontainingvaryingamylosecontentsLIJiwei,LUOXuegang,LINXiaoyan.一。HUANGYonghua(EngineeringResearchCenterofBiomassMaterials,MinistryofEducation,SouthwestUniversit.y0_廠ScienceandTechnology,Miany
3、ang621010,Sichuan,China;。SchoolofMaterialScienceandEngineering.SouthwestUniversityofScienceandTechnology,Mianyang621010,Sichuan。China)Abstract:Thermoplasticwaxycornstarch(WTPS)andmaisestarch(MTPS)werepreparedbymeItblending.Furthermore,WTPS/poly(butyleness
4、uccinate)(PBS)bleadsandMTPS/PBSblendswerepreparedforinvestigatingtheeffectsofstarchtypeonthemorphologyandviscoelasticbehavioroftheblends.TheresultsshowedthatplasticizationofwaxycornstarchwasmoreeasilyperformedthanthatofmaisestarchandWTPShadalowermeltvisco
5、sitythanthatofMTPS.TheWTPS/PBSblendshadabetterhomogeneousfracturesurfacethanthatofMTPS/PBSblends.WhenblendingratioofTPS/PBSwas6o/40,dynamicrheologicalbehavioroftheblendswasmainlyattributedtoTPSphaseandMTPS/PBSblendshadhigherstoragemodulusandcomplexviscosi
6、tythanthoseofWTPS/PBSblends.WhenblendingratioofTPS/PBSwas40/60,PBSphaseplayedanimportantroleindynamicrheologicalbehavioroftheblendsandtheMTPS/PBSblendsinlowshearrates(<1r·s一)showedmoreapparentsolid~likedynamicrheologicalbehavior.Keywords:amylosecontent;TP
7、S;PBS;morphology;dynammrheologicalbehavior—增強(qiáng)以及石油資源的日益枯竭,生物質(zhì)基高分子材口料的研究價(jià)值日益凸顯引。其中淀粉由于來源廣自20世紀(jì)70年代以來,隨著環(huán)保意識(shí)的不斷泛、價(jià)格低廉以及完全生物降解引起了人們的廣泛2012—1O—O5收到初稿,2013-01—24收到修改稿。Receiveddate:2012—1O—O5.聯(lián)系人:羅學(xué)剛。第一作者:李紀(jì)偉(1988一),男,碩士研Correspondingauthor:Prof.LUOXuegang,lxg-2
8、007@163.corn究生。Foundationitem:supportedbytheNationalScience8LTechnology基金項(xiàng)目:國家“十一五”科技支撐計(jì)劃項(xiàng)目(2007BAFA2B04);PillarProgramduringtheEleventhFive—YearPlanPeri0d西南科技大學(xué)研究生創(chuàng)新基金項(xiàng)目(1gycjj09)。(2007BAE42B04)andthePostgraduateIn