Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene Copolymer

Multicolor ethylene-norbornene (EN) composites filled with three different spinel pigments (Cobalt Green-PG50, Zinc Iron Yellow-PY 119, Praseodym Yellow-PY159) were prepared by melt mixing and characterized in terms of their stability under destructive environmental conditions. The EN films were sub...

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Main Authors: Małgorzata Kuśmierek, Bolesław Szadkowski, Przemysław Rybiński, Magdalena Śliwka-Kaszyńska, Mirosława Prochoń, Bartłomiej Syrek, Anna Marzec
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/14/14/4050
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author Małgorzata Kuśmierek
Bolesław Szadkowski
Przemysław Rybiński
Magdalena Śliwka-Kaszyńska
Mirosława Prochoń
Bartłomiej Syrek
Anna Marzec
author_facet Małgorzata Kuśmierek
Bolesław Szadkowski
Przemysław Rybiński
Magdalena Śliwka-Kaszyńska
Mirosława Prochoń
Bartłomiej Syrek
Anna Marzec
author_sort Małgorzata Kuśmierek
collection DOAJ
description Multicolor ethylene-norbornene (EN) composites filled with three different spinel pigments (Cobalt Green-PG50, Zinc Iron Yellow-PY 119, Praseodym Yellow-PY159) were prepared by melt mixing and characterized in terms of their stability under destructive environmental conditions. The EN films were subjected to accelerated aging by ultraviolet (UV) photooxidation for 300 h, 600 h, or 900 h. The mechanical performance of the EN composites was investigated in static and dynamic mechanical tests. The morphologies of the EN samples and their color changes during the aging process were evaluated by scanning electron microscopy (SEM) and spectrophotometric measurements. Fourier transform infrared (FTIR) spectroscopy was applied to determine the amount of carbonyl groups resulting from surface oxidation at different aging times. The effects of the spinel pigments on the thermal stability and combustion properties of the multicolor polymer composites were also assessed, and compared with a sample containing the organic Pigment Yellow 139 (PY139). The results show that the color changes (ΔE) in the spinel pigments were minor in comparison to those in the organic pigment (PY139) and the reference film. The Zinc Yellow (PY119) pigment was the most effective stabilizer of EN copolymer. Moreover, the spinel pigments had a positive effect on the flame retardancy of the EN composites. Microcombustion tests (MCC) showed that the incorporation of both the spinels and the organic pigment PY139 into the EN matrix reduced the heat release rate (HRR) and total heat release (THR) parameters.
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spelling doaj.art-ea2bc5aee11443fa82174a74bf06eaa72023-11-22T04:18:58ZengMDPI AGMaterials1996-19442021-07-011414405010.3390/ma14144050Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene CopolymerMałgorzata Kuśmierek0Bolesław Szadkowski1Przemysław Rybiński2Magdalena Śliwka-Kaszyńska3Mirosława Prochoń4Bartłomiej Syrek5Anna Marzec6Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, PolandInstitute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, PolandInstitute of Chemistry, The Jan Kochanowski University, Uniwersytecka 7, 25-369 Kielce, PolandDepartment of Organic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, PolandInstitute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, PolandInstitute of Chemistry, The Jan Kochanowski University, Uniwersytecka 7, 25-369 Kielce, PolandInstitute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, PolandMulticolor ethylene-norbornene (EN) composites filled with three different spinel pigments (Cobalt Green-PG50, Zinc Iron Yellow-PY 119, Praseodym Yellow-PY159) were prepared by melt mixing and characterized in terms of their stability under destructive environmental conditions. The EN films were subjected to accelerated aging by ultraviolet (UV) photooxidation for 300 h, 600 h, or 900 h. The mechanical performance of the EN composites was investigated in static and dynamic mechanical tests. The morphologies of the EN samples and their color changes during the aging process were evaluated by scanning electron microscopy (SEM) and spectrophotometric measurements. Fourier transform infrared (FTIR) spectroscopy was applied to determine the amount of carbonyl groups resulting from surface oxidation at different aging times. The effects of the spinel pigments on the thermal stability and combustion properties of the multicolor polymer composites were also assessed, and compared with a sample containing the organic Pigment Yellow 139 (PY139). The results show that the color changes (ΔE) in the spinel pigments were minor in comparison to those in the organic pigment (PY139) and the reference film. The Zinc Yellow (PY119) pigment was the most effective stabilizer of EN copolymer. Moreover, the spinel pigments had a positive effect on the flame retardancy of the EN composites. Microcombustion tests (MCC) showed that the incorporation of both the spinels and the organic pigment PY139 into the EN matrix reduced the heat release rate (HRR) and total heat release (THR) parameters.https://www.mdpi.com/1996-1944/14/14/4050polymer compositescoloring agentspinel pigmentcomposite propertiesUV aging
spellingShingle Małgorzata Kuśmierek
Bolesław Szadkowski
Przemysław Rybiński
Magdalena Śliwka-Kaszyńska
Mirosława Prochoń
Bartłomiej Syrek
Anna Marzec
Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene Copolymer
Materials
polymer composites
coloring agent
spinel pigment
composite properties
UV aging
title Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene Copolymer
title_full Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene Copolymer
title_fullStr Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene Copolymer
title_full_unstemmed Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene Copolymer
title_short Investigation into the Effect of Spinel Pigments on the Photostability and Combustion Properties of Ethylene-Norbornene Copolymer
title_sort investigation into the effect of spinel pigments on the photostability and combustion properties of ethylene norbornene copolymer
topic polymer composites
coloring agent
spinel pigment
composite properties
UV aging
url https://www.mdpi.com/1996-1944/14/14/4050
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