淀粉/PVA可降解片材动态挤出制备及其塑化机理的开题报告摘要：本文研究了淀粉/PVA可降解片材的动态挤出制备方法及其塑化机理。通过对不同比例的淀粉和PVA混合物的挤出试验，确认了最佳的材料配比以及挤出工艺参数。同时，采用DSC和热重分析仪对淀粉/PVA混合物的熔体性能进行了研究，探讨了材料的塑化机理。结果表明，淀粉和PVA的加入可以显著提高材料的熔融温度和熔融峰值，同时延长材料的稳定熔化时间，并促进挤出后的成型和硬化。关键词：淀粉/PVA；可降解片材；动态挤出；塑化机理Abstract:Thispaperstudiesthedynamicextrusionpreparationmethodandplasticizationmechanismofstarch/PVAbiodegradablefilm.Throughtheextrusionexperimentofstarch/PVAmixtureswithdifferentproportions,theoptimalmaterialratioandextrusionprocessparameterswereconfirmed.Atthesametime,themeltpropertiesofstarch/PVAmixtureswerestudiedusingDSCandTGA,andtheplasticizationmechanismofthematerialswasexplored.TheresultsshowthattheadditionofstarchandPVAcansignificantlyincreasethemeltingtemperatureandmeltingpeakofthematerials,prolongthestablemeltingtimeofthematerials,andpromotetheformingandhardeningofthematerialsafterextrusion.Keywords:starch/PVA;biodegradablefilm;dynamicextrusion;plasticizationmechanism