Resumo

DELGADO, A. E; APERADOR, W  e  BAUTISTA RUIZ, J. H. Optical properties of ldpe films with different additives mixtures. ing.cienc. [online]. 2011, vol.7, n.14, pp.49-70. ISSN 1794-9165.

This article presents the results of processing different formulations of linear low density polyethylene (LDPE) formulations, mixed it with five kind of different additives whose objective was analyzing the additives effects in the optical properties of LDPE films on greenhouse cover structure in protected cultivation for tropical environments. The results of ultra violet and visible region showed that the light transmission from the reference film was higher than additives films mixtures in the visible region, effect of some elements and synergistic action from additives contributing to decrease the light transmission in the ultra violet and visible region.

Palavras-chave : linear low density polyethylene (LDPE); additives; optical properties; plasticulture.

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