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Mezcla de materiales poliméricos I. Evaluación de las mezclas de poliestireno virgen y reciclado.
DOI:
https://doi.org/10.15446/ing.investig.n44.21303Keywords:
Procesamiento de plásticos, Polímeros, Degradación de residuos de poliestireno, Índice de fluidez del poliestireno (es)Plastics Processing, Polymers, Degradation of polystyrene, Polystyrene melt flow index (en)
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Se evaluó la degradación de residuos de posconsumo de poliestireno de alto impacto, el comportamiento mecánico y las propiedades del estado fundido para mezclas de poliestireno virgen y reciclado. El poliestireno de alto impacto, utilizado para vasos desechables, presenta una disminución de los dobles enlaces del grupo butadieno, lo cual le da menor resistencia al impacto si se compara con un poliestireno virgen. Las mezclas de material virgen y reciclado presentan propiedades cuyos valores están en el intervalo de los de las resinas originales. El índice de fluidez del poliestireno reciclado y su resistencia al impacto fueron las propiedades que presentaron mayor diferencia respecto al material virgen.
References
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Rueda, D. et al. “Study of blends based on recycled polyethylene wastes. Part. I. Variation of mechanical properties with composition”. Journal of Materials Science. Vol. 29, (1994); p. 1109-1114
“Study of blends based on recycled polyethylene wastes. Part. II. Thermal behavior and degree of molecular mixing”. Journal of Materials Science. Vol. 31, (1996); p. 3915-3920
Strong, A. B. “Plastics. Materials and Processing”. Prentice Hall, Englewood Cliffs, Estados Unidos. 1996
Wilkes, G. “Characterization of molecular weight and molecular weight distribution”. Memorias Physical Aspects of Polymers. American Chemical Society. 1978. Washington D.C.
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Copyright (c) 1999 Jairo E. Perilla, Luis R. Chaparro, Carlos Escorcia, Nelson López
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