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Biodegradable blends of poly(lactic acid) and poly (butylenes succinate) with improved compatibility, mechanical and thermal properties  
Biodegradable blends of poly(lactic acid) and poly (butylenes succinate) with improved compatibility, mechanical and thermal properties
資料類(lèi)型: PDF文件
關(guān)鍵詞: poly(lactic  acid)  poly  (butylenes  succinate)  epoxy  functional  
styrene-acrylic  oligomers  compatibility  biodegradable  
資料大?。?/td> 1285K
所屬學(xué)科: 分子表征
來(lái)源: ICAFPM 2011先進(jìn)纖維與聚合物材料國(guó)際學(xué)術(shù)會(huì)議(2011.8.15~17,上海)
簡(jiǎn)介:
FullybiodegradableblendsofPLA/PBSwithdifferentcontentofhighlytailoredepoxyfunctionalstyrene-acrylicoligomers(EFSAO)werepreparedbyalaboratory-scaletwin-screwextruderat170℃.TheeffectofEFSAOcontentonthemorphology,mechanicalproperties,thermalbehaviorwasinvestigatedbymechanicaltest,DSC,andSEMrespectively.PercentageelongationatbreakandnotchedIzodimpactstrengthofPLA/PBS/EFSAOincreasedwithEFSAOadditionincreasedfrom0.1phrto1.5phr.However,tensilestrengthandmodulusvalueschangedslightly.TheresultofDSCthermogramsofblendsshowedthattheblendshadmorepartsofamorphousphases.Morphologyshowedagreatimprovedcompatibilitycomparedagainstthetwopolymerswithoutcompatibilizerwhichhadclearpartialphaseimmiscibility.Withthereactivecompatibilizer,PBSparticlesdispersedwellinPLAandchangedtosmallersize,suggestingthattheepoxyfunctionalgroupreactwith–OHbetweenPLAandPBS.Withtheimprovmentoftoughnessandotherproperties,thematerialwouldhavemoreextensiveapplicationsinthenearfuture.
作者: PAN Licun, MENG Tao, YOU Wei, YANG Chun, YU Muhuo, HAN Keqing
上傳時(shí)間: 2011-09-26 14:01:48
下載次數(shù): 1
消耗積分: 4  
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