Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire

This research demonstrated the impact of ammonium polyphosphate (APP) content on corrosion resistance and flame retardancy properties of hybrid graphene oxide/halloysite/intumescent flame retardant (GO-HNT-IFR) coatings. Electrochemical impedance spectroscopy studied indicates that the GO0.6-H0.3 co...

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Main Authors: Siti Maznah, Kabeb, Azman, Hassan, Faiz, Ahmad
Format: Article
Language:English
English
Published: Wiley 2024
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/40938/1/8.%20Synergistic%20enhancement_%20Ammonium%20Polyphosphate%27s%20impact%20on%20hybrid%20coating%20performance%20against%20corrosion%20and%20fire.pdf
http://umpir.ump.edu.my/id/eprint/40938/2/Synergistic%20enhancement_%20Ammonium%20polyphosphates%20impact%20on%20hybrid%20coating.pdf
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author Siti Maznah, Kabeb
Azman, Hassan
Faiz, Ahmad
author_facet Siti Maznah, Kabeb
Azman, Hassan
Faiz, Ahmad
author_sort Siti Maznah, Kabeb
collection UMP
description This research demonstrated the impact of ammonium polyphosphate (APP) content on corrosion resistance and flame retardancy properties of hybrid graphene oxide/halloysite/intumescent flame retardant (GO-HNT-IFR) coatings. Electrochemical impedance spectroscopy studied indicates that the GO0.6-H0.3 coating exhibited superior corrosion resistance (Rct = 2.490 × 109 Ω·cm) compared with hybrid GO-HNT-IFR coatings. Tafel polarization data revealed a decrease in polarization resistance, Rp simultaneously increases the corrosion rate, Rcorr of the epoxy coatings containing APP compare with GO0.6-H0.3 coating. Salt spray test result demonstrated that all epoxy coating filled with hybrid nanofillers maintained excellent surface integrity, preventing corrosion for up to 500 h under controlled accelerated corrosive conditions. A reasonable increment of limited oxygen index up to 12.5% was reported by the addition of 1 phr APP, indicating its best flame retardancy and thermal stability properties among coating samples. The appropriate addition of APP (1 phr) enhanced the flame retardancy and thermal stability properties of hybrid GO-HNT-IFR coatings to a certain extent but it is impaired by increasing the APP loading. Transmission electron microscopy results validated the formation of aggregation at high APP loading, consequently affecting coating performances as well as its adhesion strength.
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spelling UMPir409382024-04-16T02:41:32Z http://umpir.ump.edu.my/id/eprint/40938/ Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire Siti Maznah, Kabeb Azman, Hassan Faiz, Ahmad QD Chemistry TP Chemical technology This research demonstrated the impact of ammonium polyphosphate (APP) content on corrosion resistance and flame retardancy properties of hybrid graphene oxide/halloysite/intumescent flame retardant (GO-HNT-IFR) coatings. Electrochemical impedance spectroscopy studied indicates that the GO0.6-H0.3 coating exhibited superior corrosion resistance (Rct = 2.490 × 109 Ω·cm) compared with hybrid GO-HNT-IFR coatings. Tafel polarization data revealed a decrease in polarization resistance, Rp simultaneously increases the corrosion rate, Rcorr of the epoxy coatings containing APP compare with GO0.6-H0.3 coating. Salt spray test result demonstrated that all epoxy coating filled with hybrid nanofillers maintained excellent surface integrity, preventing corrosion for up to 500 h under controlled accelerated corrosive conditions. A reasonable increment of limited oxygen index up to 12.5% was reported by the addition of 1 phr APP, indicating its best flame retardancy and thermal stability properties among coating samples. The appropriate addition of APP (1 phr) enhanced the flame retardancy and thermal stability properties of hybrid GO-HNT-IFR coatings to a certain extent but it is impaired by increasing the APP loading. Transmission electron microscopy results validated the formation of aggregation at high APP loading, consequently affecting coating performances as well as its adhesion strength. Wiley 2024-04 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/40938/1/8.%20Synergistic%20enhancement_%20Ammonium%20Polyphosphate%27s%20impact%20on%20hybrid%20coating%20performance%20against%20corrosion%20and%20fire.pdf pdf en http://umpir.ump.edu.my/id/eprint/40938/2/Synergistic%20enhancement_%20Ammonium%20polyphosphates%20impact%20on%20hybrid%20coating.pdf Siti Maznah, Kabeb and Azman, Hassan and Faiz, Ahmad (2024) Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire. Polymers for Advanced Technologies, 35 (4). pp. 1-8. ISSN 1625-1636. (Published) https://doi.org/10.1002/pat.6398 https://doi.org/10.1002/pat.6398
spellingShingle QD Chemistry
TP Chemical technology
Siti Maznah, Kabeb
Azman, Hassan
Faiz, Ahmad
Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire
title Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire
title_full Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire
title_fullStr Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire
title_full_unstemmed Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire
title_short Synergistic enhancement: Ammonium polyphosphate's impact on hybrid coating performance against corrosion and fire
title_sort synergistic enhancement ammonium polyphosphate s impact on hybrid coating performance against corrosion and fire
topic QD Chemistry
TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/40938/1/8.%20Synergistic%20enhancement_%20Ammonium%20Polyphosphate%27s%20impact%20on%20hybrid%20coating%20performance%20against%20corrosion%20and%20fire.pdf
http://umpir.ump.edu.my/id/eprint/40938/2/Synergistic%20enhancement_%20Ammonium%20polyphosphates%20impact%20on%20hybrid%20coating.pdf
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AT azmanhassan synergisticenhancementammoniumpolyphosphatesimpactonhybridcoatingperformanceagainstcorrosionandfire
AT faizahmad synergisticenhancementammoniumpolyphosphatesimpactonhybridcoatingperformanceagainstcorrosionandfire