Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated Polyester Resin Modified with L-histidinium Dihydrogen Phosphate-Phosphoric Acid

In this paper, the fire behavior of unsaturated polyester resin (UP) modified with L-histidinium dihydrogen phosphate-phosphoric acid (LHP), being a novel intumescent fire retardant (IFR), was investigated. Thermal and thermomechanical properties of the UP with different amounts of LHP (from 10 to 3...

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Main Authors: Kamila Sałasińska, Maciej Celiński, Kamila Mizera, Mateusz Barczewski, Paweł Kozikowski, Michał K. Leszczyński, Agata Domańska
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/4/932
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author Kamila Sałasińska
Maciej Celiński
Kamila Mizera
Mateusz Barczewski
Paweł Kozikowski
Michał K. Leszczyński
Agata Domańska
author_facet Kamila Sałasińska
Maciej Celiński
Kamila Mizera
Mateusz Barczewski
Paweł Kozikowski
Michał K. Leszczyński
Agata Domańska
author_sort Kamila Sałasińska
collection DOAJ
description In this paper, the fire behavior of unsaturated polyester resin (UP) modified with L-histidinium dihydrogen phosphate-phosphoric acid (LHP), being a novel intumescent fire retardant (IFR), was investigated. Thermal and thermomechanical properties of the UP with different amounts of LHP (from 10 to 30 wt. %) were determined by thermogravimetric analysis (TG) as well as dynamic mechanical thermal analysis (DMTA). Reaction to small flames was studied by horizontal burning (HB) test, while fire behavior and smoke emission were investigated with the cone calorimeter (CC) and smoke density chamber. Further, the analysis of volatile products was conducted (TGA/FT-IR). It was observed that the addition of LHP resulted in the formation of carbonaceous char inhibiting the thermal decomposition, burning rate and smoke emission. The most promising results were obtained for the UP containing 30 wt. % of LHP, for which the highest reduction in maximum values of heat release rate (200 kW/m<sup>2</sup>) and total smoke release (3535 m<sup>2</sup>/m<sup>2</sup>) compared to unmodified polymer (792 kW/m<sup>2</sup> and 6895 m<sup>2</sup>/m<sup>2</sup>) were recorded. However, some important disadvantage with respect to water resistance was observed.
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spelling doaj.art-df84a3d5f15d41c09ffa493e5b5c0cfa2023-12-03T13:12:07ZengMDPI AGMolecules1420-30492021-02-0126493210.3390/molecules26040932Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated Polyester Resin Modified with L-histidinium Dihydrogen Phosphate-Phosphoric AcidKamila Sałasińska0Maciej Celiński1Kamila Mizera2Mateusz Barczewski3Paweł Kozikowski4Michał K. Leszczyński5Agata Domańska6Central Institute for Labour Protection—National Research Institute, Department of Chemical, Biological and Aerosol Hazards, 00-701 Warsaw, PolandCentral Institute for Labour Protection—National Research Institute, Department of Chemical, Biological and Aerosol Hazards, 00-701 Warsaw, PolandCentral Institute for Labour Protection—National Research Institute, Department of Chemical, Biological and Aerosol Hazards, 00-701 Warsaw, PolandInstitute of Materials Technology, Poznan University of Technology, 61-138 Poznań, PolandCentral Institute for Labour Protection—National Research Institute, Department of Chemical, Biological and Aerosol Hazards, 00-701 Warsaw, PolandFaculty of Chemistry, Warsaw University of Technology, 02-507 Warsaw, PolandŁukasiewicz Research Network—Institute for Engineering of Polymer Materials and Dyes, 87-100 Toruń, PolandIn this paper, the fire behavior of unsaturated polyester resin (UP) modified with L-histidinium dihydrogen phosphate-phosphoric acid (LHP), being a novel intumescent fire retardant (IFR), was investigated. Thermal and thermomechanical properties of the UP with different amounts of LHP (from 10 to 30 wt. %) were determined by thermogravimetric analysis (TG) as well as dynamic mechanical thermal analysis (DMTA). Reaction to small flames was studied by horizontal burning (HB) test, while fire behavior and smoke emission were investigated with the cone calorimeter (CC) and smoke density chamber. Further, the analysis of volatile products was conducted (TGA/FT-IR). It was observed that the addition of LHP resulted in the formation of carbonaceous char inhibiting the thermal decomposition, burning rate and smoke emission. The most promising results were obtained for the UP containing 30 wt. % of LHP, for which the highest reduction in maximum values of heat release rate (200 kW/m<sup>2</sup>) and total smoke release (3535 m<sup>2</sup>/m<sup>2</sup>) compared to unmodified polymer (792 kW/m<sup>2</sup> and 6895 m<sup>2</sup>/m<sup>2</sup>) were recorded. However, some important disadvantage with respect to water resistance was observed.https://www.mdpi.com/1420-3049/26/4/932unsaturated polyester resinburning behaviorfire retardantthermal stability
spellingShingle Kamila Sałasińska
Maciej Celiński
Kamila Mizera
Mateusz Barczewski
Paweł Kozikowski
Michał K. Leszczyński
Agata Domańska
Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated Polyester Resin Modified with L-histidinium Dihydrogen Phosphate-Phosphoric Acid
Molecules
unsaturated polyester resin
burning behavior
fire retardant
thermal stability
title Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated Polyester Resin Modified with L-histidinium Dihydrogen Phosphate-Phosphoric Acid
title_full Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated Polyester Resin Modified with L-histidinium Dihydrogen Phosphate-Phosphoric Acid
title_fullStr Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated Polyester Resin Modified with L-histidinium Dihydrogen Phosphate-Phosphoric Acid
title_full_unstemmed Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated Polyester Resin Modified with L-histidinium Dihydrogen Phosphate-Phosphoric Acid
title_short Moisture Resistance, Thermal Stability and Fire Behavior of Unsaturated Polyester Resin Modified with L-histidinium Dihydrogen Phosphate-Phosphoric Acid
title_sort moisture resistance thermal stability and fire behavior of unsaturated polyester resin modified with l histidinium dihydrogen phosphate phosphoric acid
topic unsaturated polyester resin
burning behavior
fire retardant
thermal stability
url https://www.mdpi.com/1420-3049/26/4/932
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