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Novel engineering approaches on composite materials (part I): Effect of low temperature air plasma treatment on physico-chemical properties of kaolinite/polyethylene composites

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dc.title Novel engineering approaches on composite materials (part I): Effect of low temperature air plasma treatment on physico-chemical properties of kaolinite/polyethylene composites en
dc.contributor.author Lapčík, Lubomír
dc.contributor.author Lapčíková, Barbora
dc.contributor.author Krásný, Ivo
dc.contributor.author Kupská, Ivana
dc.relation.ispartof Engineering Against Failure - Proceedings of the 3rd International Conference of Engineering Against Failure, ICEAF 2013
dc.identifier.isbn 9789608810433
dc.date.issued 2013
dc.citation.spage 9
dc.citation.epage 13
dc.event.title 3rd International Conference of Engineering Against Failure, ICEAF 2013
dc.event.location Kos
utb.event.state-en Greece
utb.event.state-cs Řecko
dc.event.sdate 2013-06-26
dc.event.edate 2013-06-28
dc.type conferenceObject
dc.language.iso en
dc.publisher University of Patras, Laboratory of Technology and Strength of Materials
dc.subject Composites en
dc.subject Kaolinite en
dc.subject Mechanical properties, poly(ethylene) (PE) en
dc.description.abstract It was found in this study that air plasma treatment of particular kaolinite has led to the change of its wettability. This was reflected in the decreased values of water contact angles of wetting. There were determined yield locus and flow function dependencies at different stress levels for virgin and different time plasma treated samples (flow index - ffc, effective angle of internal friction - phie, unconfined yield strength - sigmac). It was found that by plasma treatment the character of the flow was shifting from region of very cohesive (ffc = 2.39) to the cohesive (ffc = 3.19). For untreated samples effective angle of internal friction was decreased with increasing applied consolidation stress, while for plasma treated kaolinite it was increased. As a result of the latter powder rheological changes was a notable improvement of the fracture toughness of prepared HDPE composites as found in the whole concentration range of degree of filling under study (from 5 to 25 w.% filler concentration) and tensile strength increase found for 5 w.% virgin kaolinite filled polyethylene composites. This improvement to the fracture toughness became more marked as the filler loading increased, indicating an improved degree of filler/matrix interaction. en
utb.faculty University Institute
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1004654
utb.identifier.obdid 43873619
utb.identifier.scopus 2-s2.0-84905717455
utb.source d-scopus
dc.date.accessioned 2015-06-04T12:54:44Z
dc.date.available 2015-06-04T12:54:44Z
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Lapčík, Lubomír
utb.contributor.internalauthor Lapčíková, Barbora
utb.contributor.internalauthor Krásný, Ivo
utb.contributor.internalauthor Kupská, Ivana
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