Photostabilization of polystyrene/montmorillonite nanocomposite. A factorial experimental design 24

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dc.contributor.authorOliveira C.F.P.
dc.contributor.authorCremm S.R.
dc.contributor.authorCruz G.H.S.
dc.contributor.authorFechine G.J.M.
dc.date.accessioned2024-03-13T01:04:55Z
dc.date.available2024-03-13T01:04:55Z
dc.date.issued2013
dc.description.abstractThe weathering behavior of polystyrene (PS) and PS/montmorillonite nanocomposite with and without addition of ultraviolet (UV) absorber and/or antioxidant was investigated. Samples were exposed to UV radiation in the laboratory for periods of up to approximately 12 weeks. The samples were exposed for various irradiation intervals, and their tensile and impact strength was monitored through a factorial experimental design 24. The molecular weight, yellowness, and fracture surface were also monitored. The results generated by analysis of variance (ANOVA) Table showed that UV absorber and exposure time had the most important effects positive and negative, respectively. These results could be seen for neat PS and PS/MMT nanocomposite. The presence of antioxidant alone did not have any significant effect but when mixed with UV absorber presented a small synergism. These results corroborate with molecular weight, yellowing and fracture surface of tensile and impact samples. © 2012 Wiley Periodicals, Inc.
dc.description.firstpage188
dc.description.issuenumber1
dc.description.lastpage198
dc.description.volume128
dc.identifier.doi10.1002/app.38143
dc.identifier.issn0021-8995
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/36630
dc.relation.ispartofJournal of Applied Polymer Science
dc.rightsAcesso Restrito
dc.subject.otherlanguagefactorial design
dc.subject.otherlanguagenanocomposite
dc.subject.otherlanguagephotodegradation
dc.subject.otherlanguagephotostabilization
dc.titlePhotostabilization of polystyrene/montmorillonite nanocomposite. A factorial experimental design 24
dc.typeArtigo
local.scopus.citations4
local.scopus.eid2-s2.0-84872298445
local.scopus.subjectExposure-time
local.scopus.subjectFactorial design
local.scopus.subjectFactorial experimental design
local.scopus.subjectFracture surfaces
local.scopus.subjectPhotostabilization
local.scopus.subjectUltraviolet absorbers
local.scopus.subjectUV absorbers
local.scopus.subjectWeathering behavior
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84872298445&origin=inward
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