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Description of degradation influence on the plasticized PVB during its re-working by kneading

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dc.title Description of degradation influence on the plasticized PVB during its re-working by kneading en
dc.contributor.author Měřínská, Dagmar
dc.contributor.author Tupý, Michael
dc.contributor.author Popelková, Jana
dc.contributor.author Pištěk, David
dc.contributor.author Zvoníček, Josef
dc.relation.ispartof IVth International Conference on Times of Polymers (Top) and Composites
dc.identifier.issn 0094-243X Scopus Sources, Sherpa/RoMEO, JCR
dc.identifier.isbn 978-0-7354-0570-7
dc.date.issued 2008
utb.relation.volume 1042
dc.citation.spage 327
dc.citation.epage 329
dc.event.title 4th International Conference on Times of Polymers TOP and Composites
dc.event.location Ischia
utb.event.state-en Italy
utb.event.state-cs Itálie
dc.event.sdate 2008-09-21
dc.event.edate 2008-09-24
dc.type conferenceObject
dc.language.iso en
dc.publisher American Institute of Physics (AIP) en
dc.identifier.doi 10.1063/1.2989050
dc.relation.uri http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=APCPCS001042000001000327000001&idtype=cvips&gifs=yes&ref=no
dc.subject polyvinyl butyral en
dc.subject degradation en
dc.subject recycling en
dc.subject kneading en
dc.subject thermooxidation process en
dc.description.abstract PVB sheet (type Butacite 3GO) with polymer chains containing butyraldehyde, hydroxyl- and small amount of acetate groups, was tested. These sheets were highly plasticized, with the content of plasticizer 28%. Studied material was tested at different kneading conditions; especially the influence of temperature, oxygen, mechanical energy and created heat of dissipation was studied. PVB sheet was kneaded at their usual humidity oca 0.5%. Because PVB in known as the material with high hydroscopity, next tests were done on PVB sheets macerated in water. By this operation the humidity of sheets increases to the content 8.0%. High humidity influenced all observed properties. Simultaneously, samples of PVB sheets re-worked by calendaring and pressing. At the calendaring the sheets were thermally stressed. The calendaring represents shear stress at low temperature. The degradation was evaluated as the change of optical properties, like the light transmittance through the re-worked material, created haze and yellowing. Next evaluated data were the change of mechanical properties - melt flow index and stress-strain behaviour. Summarized data were used for the choice of the optimal conditons for re-working of PVB sheets. The optimal conditions should bring the lowest energetic costs, minimal shear and thermo-oxidative degradation. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1001860
utb.identifier.rivid RIV/70883521:28110/08:43865847!RIV12-MSM-28110___
utb.identifier.obdid 43865864
utb.identifier.scopus 2-s2.0-52249093989
utb.identifier.wok 000259023500112
utb.source d-wok
dc.date.accessioned 2011-08-09T07:34:06Z
dc.date.available 2011-08-09T07:34:06Z
dc.rights.access openAccess
utb.contributor.internalauthor Měřínská, Dagmar
utb.contributor.internalauthor Tupý, Michael
utb.contributor.internalauthor Popelková, Jana
utb.contributor.internalauthor Pištěk, David
utb.contributor.internalauthor Zvoníček, Josef
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