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Effect of platy and tubular nanoclays on behaviour of biodegradable PCL/PLA blend and related microfibrillar composites
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SYSNO ASEP 0468292 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Effect of platy and tubular nanoclays on behaviour of biodegradable PCL/PLA blend and related microfibrillar composites Tvůrce(i) Kelnar, Ivan (UMCH-V) RID, ORCID
Kratochvíl, Jaroslav (UMCH-V) RIDČíslo článku 020013 Zdroj.dok. AIP Conference Proceedings 1736. - Melville : American Institute of Physics, 2016 / D’Amore A. ; Acierno D. ; Grassia L. - ISSN 0094-243X - ISBN 978-0-7354-1390-0 Rozsah stran s. 1-4 Poč.str. 4 s. Forma vydání Tištěná - P Akce International Conference on "Times of Polymers (TOP) & Composites" /8./. From Aerospace to Nanotechnology Datum konání 19.06.2016 - 23.06.2016 Místo konání Ischia Země IT - Itálie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova poly (epsilon-caprolactone) ; poly (lactic acid) ; microfibrillar composites Vědní obor RIV JI - Kompozitní materiály CEP GA13-15255S GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000387931100013 EID SCOPUS 84984559205 DOI 10.1063/1.4949587 Anotace Blending of ductile poly(epsilon-caprolactone) (PCL) and rigid polylactic acid (PLA) is a promising way to tailor biodegradable materials with broad range of properties. But the mutual incompatibility of both polyesters leads to compromised behaviour only. Alternative to PCL/PLA blends is application of PLA in the form of short fibres, however, difficult dispergation of flexible fibres including their poor adhesion and limited processing is a significant restriction. More effective is in situ formation of polymeric fibre-reinforced materials using microfibrillar composites (MFC) concept based on melt- or cold-drawing of a polymer blend. Important advantage of MFC is efficient dispersion and bonding of in-situ formed reinforcing fibres This work deals with combination of structure-directing and reinforcing effects of montmorillonite (oMMT) and halloysite nanotubes (HNT) in the PCL/PLA 80/20 blend with in-situ formation of PLA fibrils in the PCL matrix. In the resulting microfibrillar composite, reinforcement by rigid PLA fibrils is combined with strengthening of both components by the nanofiller (NF). Moreover, PLA fibrils formation via melt-drawing is only possible after nanofiller addition due to favourable affecting of rheological parameters of the polymer components. The structure-properties relationship and complex effect of NF on microfibrillar composite performance, causing e.g., quite comparable parameters of both microfibrillar composites in spite of lower reinforcing effect of halloysite nanotubes on components, are discussed. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2017
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