Protection of high-density polyethylene-silicon composites from ultraviolet-visible photodegradation
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Protection of high-density polyethylene-silicon composites from ultraviolet-visible photodegradation

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Protection of high-density polyethylene-silicon composites from ultraviolet-visible photodegradation

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dc.contributor.author Santonja-Blasco, L.
dc.contributor.author Rodríguez, I.
dc.contributor.author Sánchez-Ballester, S.
dc.contributor.author Badia Valiente, José David
dc.contributor.author Meseguer, F.
dc.contributor.author Ribes Greus, A.
dc.date.accessioned 2019-10-22T12:52:23Z
dc.date.available 2019-10-22T12:52:23Z
dc.date.issued 2017
dc.identifier.uri https://hdl.handle.net/10550/71788
dc.description.abstract The extent of the ultraviolet-visible (UV-vis) photoirradiation effect on high-density polyethylene (HDPE) and HDPE-silicon (Si) composites is reported in terms of the addition of Si microparticles at contents of 0.1, 1, and 5 wt %. A standard accelerated UV-vis exposure was applied over 2750 h, corresponding to 22 months in Florida. Thermogravimetry, differential scanning calorimetry, and Fourier transform infrared spectroscopy were used as reliable techniques for monitoring the quality of the HDPE-Si composites. The increasing addition of Si microparticles delayed the photodegradation of the HDPE-Si composites. Because of their strong lightscattering effects, Si microparticles blocked the degradation of tertiary carbons of the HDPE backbone and reduced the apparition of vinyl groups; this prevented the structural impoverishment of HDPE-Si composites. Consequently, variations in the crystallization temperature (Tc) and melting temperature (Tm), which were indicators of photodegradation, were not modified. In general, the HDPE-Si composite formulation with 5 wt % Si microparticles was useful for protecting the material from photodegradation and, thus, should be an environmentally friendly, reliable alternative UV-vis blocker.
dc.language.iso eng
dc.relation.ispartof Journal of Applied Polymer Science, 2017, vol. 134, num. 45439, p. 1-11
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Santonja-Blasco, L. Rodríguez, I. Sánchez-Ballester, S. Badia Valiente, José David Meseguer, F. Ribes Greus, A. 2017 Protection of high-density polyethylene-silicon composites from ultraviolet-visible photodegradation Journal of Applied Polymer Science 134 45439 1 11
dc.subject Materials compostos
dc.subject Termoplàstics
dc.title Protection of high-density polyethylene-silicon composites from ultraviolet-visible photodegradation
dc.type info:eu-repo/semantics/article
dc.date.updated 2019-10-22T12:52:23Z
dc.identifier.doi https://doi.org/10.1002/app.45439
dc.identifier.idgrec 124461

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