Impact of bimodal particle size distribution ratio of functional calcium carbonate filler on thermal and flowability properties of polyamide 12

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorIppolito, Fabio
dc.contributor.authorHübner, Gunter
dc.contributor.authorClaypole, Tim
dc.contributor.authorGane, Patrick
dc.contributor.departmentOmya International AG
dc.contributor.departmentUniversity of Media Stuttgart
dc.contributor.departmentSwansea University
dc.contributor.departmentDepartment of Bioproducts and Biosystems
dc.date.accessioned2021-01-27T09:10:51Z
dc.date.available2021-01-27T09:10:51Z
dc.date.issued2021-01-02
dc.description.abstractIn previous investigations, it was shown that the melting, as well as crystallization behavior of polyamide 12, could be manipulated by adjusting the particle size distribution of calcium carbonate as a functional filler. It was demonstrated that the melt properties of this compound show a significant dependency on the filler volume-based particle size. As finer and narrower the calcium carbonate particles in the polymer matrix become, the less influence the filler has on the melting properties, influencing the melt flow less significantly than the same surface amount of broad size distribution coarse calcium carbonate filler particles. However, due to increased nucleation, the crystallization behavior on cooling showed a markedly more rapid onset in the case of fine sub-micrometer filler particle size. To control further and optimize the thermal response properties of a filling compound for improved properties in additive manufacturing processing through selective laser sintering, the possibility to combine precisely defined particle size distributions has been studied, thereby combining the benefits of each particle size range within the chosen material size distribution contributes to the matrix. The melt flow at 190◦ C, the melting speed, melting and crystallization point as well as crystallization time at 170◦ C were analyzed. The thermal and flow properties of a polyamide 12 matrix can potentially be optimized with a combination of a precise amount of coarse and fine calcium carbonate filler. The improvements were exemplified using a twin-screw extruder for compounding, indicating the potential for optimizing functionally filled polymer in additive manufacturing.en
dc.description.versionPeer revieweden
dc.format.extent13
dc.format.extent1-13
dc.format.mimetypeapplication/pdf
dc.identifier.citationIppolito , F , Hübner , G , Claypole , T & Gane , P 2021 , ' Impact of bimodal particle size distribution ratio of functional calcium carbonate filler on thermal and flowability properties of polyamide 12 ' , Applied Sciences (Switzerland) , vol. 11 , no. 2 , 641 , pp. 1-13 . https://doi.org/10.3390/app11020641en
dc.identifier.doi10.3390/app11020641
dc.identifier.issn2076-3417
dc.identifier.otherPURE UUID: 59ced743-389b-4817-a55c-41a367f51d62
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/59ced743-389b-4817-a55c-41a367f51d62
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85099249103&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/55459720/applsci_11_00641.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/102338
dc.identifier.urnURN:NBN:fi:aalto-202101271649
dc.language.isoenen
dc.publisherSpringer International Publishing AG
dc.relation.ispartofseriesApplied Sciences (Switzerland)en
dc.relation.ispartofseriesVolume 11, issue 2en
dc.rightsopenAccessen
dc.subject.keywordAdditive manufacturing
dc.subject.keywordFunctional calcium carbonate
dc.subject.keywordPolymer composites
dc.titleImpact of bimodal particle size distribution ratio of functional calcium carbonate filler on thermal and flowability properties of polyamide 12en
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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