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Photodegradation of Polypropylene with sorbitol-based nucleating agent

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dc.title Photodegradation of Polypropylene with sorbitol-based nucleating agent en
dc.contributor.author Čermák, Roman
dc.contributor.author Navrátilová, Jana
dc.contributor.author Vašek, Lubomír
dc.relation.ispartof Latest Trends on Engineering Mechanics, Structures, Engineering Geology
dc.identifier.isbn 978-960-474-203-5
dc.date.issued 2010
dc.citation.spage 424
dc.citation.epage 428
dc.event.title 3rd WSEAS International Conference on Engineering Mechanics, Structures, Engineering Geology/International Conference on Geography and Geology
dc.event.location Corfu Island
utb.event.state-en Greece
utb.event.state-cs Řecko
dc.event.sdate 2010-07-22
dc.event.edate 2010-07-24
dc.type conferenceObject
dc.language.iso en
dc.publisher World Scientific and Engineering Academy and Society (WSEAS) en
dc.relation.uri http://www.wseas.us/e-library/conferences/2010/Corfu/EMEGEO/EMEGEO-72.pdf
dc.subject polypropylene en
dc.subject nucleating agent en
dc.subject sorbitol en
dc.subject photodegradation en
dc.subject polymorphism en
dc.description.abstract The paper deals with the effects of nucleation on photodegradation of isotactic polypropylene. The starting polymer was modified by a specific alpha-nucleating/clarifying agent Millad 3988 based on 1,3;2,4-bis(3,4-dimethylbenzylidene) sorbitol. Several concentrations were applied. Samples prepared by compression moulding were then exposed to UV-irradiation. Infrared spectroscopy showed that the degradation kinetics is similar for all the samples. Melting and crystallization behaviour of irradiated samples was followed using a differential scanning calorimetry. In all cases UV-irradiation led to decrease of melting/crystallization temperature as a result of polymer degradation. The surface cracking was observed using polarized light microscopy. The network of the surface cracking was significantly different for neat and nucleated samples. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1001749
utb.identifier.rivid RIV/70883521:28110/10:63509304!RIV11-MSM-28110___
utb.identifier.obdid 43863761
utb.identifier.scopus 2-s2.0-79958846876
utb.identifier.wok 000288686900077
utb.source d-wok
dc.date.accessioned 2011-08-09T07:33:47Z
dc.date.available 2011-08-09T07:33:47Z
utb.contributor.internalauthor Čermák, Roman
utb.contributor.internalauthor Navrátilová, Jana
utb.contributor.internalauthor Vašek, Lubomír
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