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Thermal stability of surface-esterified cellulose and its composite with polyolefinic matrix

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dc.title Thermal stability of surface-esterified cellulose and its composite with polyolefinic matrix en
dc.contributor.author Janíček, Miroslav
dc.contributor.author Krejčí, Ondřej
dc.contributor.author Čermák, Roman
dc.relation.ispartof Cellulose
dc.identifier.issn 0969-0239 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2013
utb.relation.volume 20
utb.relation.issue 6
dc.citation.spage 2745
dc.citation.epage 2755
dc.type article
dc.language.iso en
dc.publisher Springer Netherlands en
dc.identifier.doi 10.1007/s10570-013-0070-9
dc.relation.uri https://link.springer.com/article/10.1007/s10570-013-0070-9
dc.subject Cellulose en
dc.subject Composite en
dc.subject Degradation en
dc.subject Esterification en
dc.subject Hydrophobization en
dc.subject Stability en
dc.description.abstract Thermal stability of hydrophobized cellulose powders was investigated from the perspective of potential use as filler in non-polar polyolefinic matrix. The hydrophobization was done by heterogeneous esterification with three carboxylic acids which differ in chain length (3, 10 and 18 carbons). Data measured by means of thermogravimetry (TG) were recalculated according to model-free isoconversional method to construct time-temperature plots. It was demonstrated that the esterification significantly decreases thermal stability of the material, which reduces feasible processing window. Under non-oxidative atmosphere, the single-step decomposition of materials is prevailing, while the process is more complex in air. In both cases the oleic acid esters showed the lowest stability and the original cellulose was the most stable. Finally, all powders were compounded with polyethylene or polypropylene. Obtained composites were then subjected to color measurement and TG. Even though the materials were partly degraded, which was indicated by the yellowish hue of the composites, virtually no impact of the filler pyrolysis on the polymer matrix decomposition was observed, particularly in case of decanoyl esters. © 2013 Springer Science+Business Media Dordrecht. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1003568
utb.identifier.obdid 43870230
utb.identifier.scopus 2-s2.0-84887964198
utb.identifier.wok 000327123000008
utb.identifier.coden CELLE
utb.source j-scopus
dc.date.accessioned 2013-12-06T15:32:03Z
dc.date.available 2013-12-06T15:32:03Z
utb.contributor.internalauthor Janíček, Miroslav
utb.contributor.internalauthor Krejčí, Ondřej
utb.contributor.internalauthor Čermák, Roman
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