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Resistance of poly(lactic acid)/starch composites to weathering effects

dc.date.accessioned2024-01-22T15:44:08Z
dc.date.available2024-01-22T15:44:08Z
dc.date.issued2023-10-06
dc.identifierdoi:10.17170/kobra-202401229395
dc.identifier.urihttp://hdl.handle.net/123456789/15378
dc.description.sponsorshipGefördert im Rahmen des Projekts DEAL
dc.language.isoeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectagingeng
dc.subjectbiopolymerseng
dc.subjectdurabilityeng
dc.subjecthydrlysiseng
dc.subjectPLAeng
dc.subjectstarcheng
dc.subject.ddc620
dc.titleResistance of poly(lactic acid)/starch composites to weathering effectseng
dc.typeAufsatz
dcterms.abstractIn order to produce a completely bio-based and cost-effective filled polymer, PLA and native potato starch as a filler were compounded by twin screw extrusion. Subsequently injection molded test specimens were manufactured and subjected to artificial weathering as well as different storages (high temperature, high humidity, freeze, water) for 504 h with a view to long-term resistance. Depending on the starch content a significant reduction of up to 100% in tensile strength can be seen, as the starch accelerates or inhibits the triggered aging effects. As a result of the influence of humidity and water as well as artificial weathering, stress cracks are formed in starch-containing samples. Storage at an elevated temperature (70°C, 50% RH) leads to polymer degradation of the PLA. This degradation can be inhibited by the addition of starch. Freezing storage has no significant influence on the mechanical and structural properties of the PLA starch composites.eng
dcterms.accessRightsopen access
dcterms.creatorGoetjes, Victoria
dcterms.creatorZarges, Jan-Christoph
dcterms.creatorHeim, Hans-Peter
dcterms.extent12 Seiten
dc.relation.doidoi:10.1002/app.54768
dc.subject.swdPermeabilitätger
dc.subject.swdBiopolymereger
dc.subject.swdHydrolyseger
dc.subject.swdStärkeger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1097-4628
dcterms.source.issueIssue 2
dcterms.source.journalJournal of Applied Polymer Scienceeng
dcterms.source.volumeVolume 141
kup.iskupfalse
dcterms.source.articlenumbere54768


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