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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

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.citation	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.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.subject	Materials compostos
dc.subject	Termoplàstics
dc.title	Protection of high-density polyethylene-silicon composites from ultraviolet-visible photodegradation
dc.type	journal article	es_ES
dc.date.updated	2019-10-22T12:52:23Z
dc.identifier.doi	10.1002/app.45439
dc.identifier.idgrec	124461
dc.rights.accessRights	open access	es_ES