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EVALUACIÓN DE UN RECUBRIMIENTO ANTICORROSIVO A BASE DE POLIESTIRENO EXPANDIDO RECICLADO

Authors: Parada Rivera, Mabel; Cárdenas Valencia, Tanya; Palmay Paredes, Paul; Borja Mayorga, Danielita; Ramos Flores, María Eugenia;

EVALUACIÓN DE UN RECUBRIMIENTO ANTICORROSIVO A BASE DE POLIESTIRENO EXPANDIDO RECICLADO

Abstract

El desarrollo de recubrimientos anticorrosivos en la actualidad busca la reutilización de las grandes cantidades de polímeros desechados, entre los que destaca el poliestireno. Esta investigación tuvo como objetivo evaluar un recubrimiento anticorrosivo formulado en base a poliestireno expandido reciclado. Se desarrollaron dos formulaciones patrón con poliestireno expandido reciclado como resina, D-limoneno como disolvente, TiO2 pigmento carga, ZnO agente anticorrosivo y octoato de cobalto como secante. Se evaluaron sus propiedades físicas, químicas y reológicas en referencia a la Norma Técnica Ecuatoriana NTE INEN 1045 “Pinturas anticorrosiva. Esmalte alquídico brillante. Requisitos”. Los resultados muestran que la formulación 2 da mejores resultados en función de su un tiempo de secado al tacto (63,84 min), viscosidad (715,80 cP), porcentaje de adherencia (96,00 %), limpieza en vidrio y porcentaje de sólidos (39,50 %). Adicionalmente, se comparó la resistencia a la corrosión del recubrimiento obtenido versus un recubrimiento comercial, mediante la exposición al ambiente salino de la playa las Palmas de la ciudad de Esmeraldas de placas de acero al carbono, acero inoxidable 304L y tol negro tratadas con ambos recubrimientos y aplicando la técnica de pérdida de peso. La velocidad de corrosión en las muestras donde se aplicó el recubrimiento de poliestireno, en milésimas de pulgadas por año (mpy), fueron 0,859 para el tol negro, 0,259 para acero al carbono y 0,064 para acero inoxidable 304L en base a la norma ADTM D-610 usando imágenes estandarizadas. Lo que evidencia el potencial del polímero reciclado como resina para recubrimiento anticorrosivo.

Keywords

RECUBRIMIENTO, POLIESTIRENO EXPANDIDO, EXPANDED POLYSTYRENE, ANTICORROSIVO, COATING, CORROSION, ANTICORROSIVE, CORROSIÓN

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green
gold