RUIZ, C.S.B.MACHADO, L.D.B.2014-07-152014-07-302014-07-152014-07-302005RUIZ, C.S.B.; MACHADO, L.D.B. Accelerated weathering of UV/EB curable clearcoats. <b>Nuclear Instruments and Methods in Physics Research</b>, v. 236, n. 1-4, p. 599-605, 2005. Section B. DOI: <a href="https://dx.doi.org/10.1016/j.nimb.2005.04.050">10.1016/j.nimb.2005.04.050</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/5551.0168-583Xhttp://repositorio.ipen.br/handle/123456789/5551This study provides data regarding the behaviour of four UV- and EB-curable clearcoats – with or without light stabiliser additives – under accelerated weathering. The experimental data obtained from the weathered samples were evaluated and correlated to the formulation composition, type of radiation (UV or EB), radiation dose, and time in the ageing chamber. The results show that the EB-cured films have a better resistance to photoinduced weathering effects than do UV cured films. The UV/EB films with light stabilisers have shown greater stability than their counterparts with no additives. The ageing effects were evaluated by assessing parameters such as hardness, gloss, yellowness index, and changes in the Fourier transform infrared spectroscopy absorption bands.599-605openAccessabsorptionadditivesagingelectron beamsfilmsfourier transform spectrometershardnesspolymersradiation curingradiation dosesweatheringArtigo de periódico1-4236Section B10.1016/j.nimb.2005.04.050