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时间:2020-05-01
《不同淀粉类型TPS/PBS共混体系的形貌与黏弹行为.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第64卷第6期化工学报Vo1.64No.62013年6月CIESCJournalJune2O13不同淀粉类型TPS/PBS共混体系的形貌与黏弹行为李纪伟。,罗学刚,林晓艳。,黄永华(西南科技大学材料科学与工程学院,四川绵阳621010;西南科技大学生物质材料教育部工程研究中心,四川绵阳621O1O)关键词:直链淀粉含量;热塑性淀粉;聚丁二酸Tz醇酯;微观形貌;黏弹行为DOI:10.3969/j.issn.0438-1157.2013.06.053中图分类号:TK02文献标志码:A文章编号:O438—115
2、7(2013)06—23OO—O6MorphologyandviscoelasticbehaviorofPBS/TPSblendscontainingvaryingamylosecontentsLIJiwei,LUOXuegang,LINXiaoyan.一。HUANGYonghua(EngineeringResearchCenterofBiomassMaterials,MinistryofEducation,SouthwestUniversit.y0_厂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—增强以及石油资源的日益枯竭,生物质基高分子材口料的研究价值日益凸显引。其中淀粉由于来源广自20世纪70年代以来,随着环保意识的不断泛、价格低廉以及完全生物降解引起了人们的广泛2012—1O—O5收到初稿,2013-01—24收到修改稿。Receiveddate:2012—1O—O5.联系人:罗学刚。第一作者:李纪伟(1988一),男,硕士研Correspondingauthor:Prof.LUOXuegang,lxg-2
8、007@163.corn究生。Foundationitem:supportedbytheNationalScience8LTechnology基金项目:国家“十一五”科技支撑计划项目(2007BAFA2B04);PillarProgramduringtheEleventhFive—YearPlanPeri0d西南科技大学研究生创新基金项目(1gycjj09)。(2007BAE42B04)andthePostgraduateIn
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