Intumescent flame retardant coating based graphene oxide and halloysite nanotubes

Epoxy nanocomposites coatings filled with hybrid graphene oxide/halloysites (GO/HNT) based intumescent flame-retardant additives (IFR) have been fabricated and investigated in terms of flame retardancy property, thermal stability, and adhesion strength. The dispersion and interaction of the nanofill...

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Main Authors: Kabeb, Siti Maznah, Hassan, Azman, Mohamad, Zurina, Sharer, Zalilah, Ahmad, Faiz
Format: Article
Published: Elsevier Ltd 2022
Subjects:
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author Kabeb, Siti Maznah
Hassan, Azman
Mohamad, Zurina
Sharer, Zalilah
Ahmad, Faiz
author_facet Kabeb, Siti Maznah
Hassan, Azman
Mohamad, Zurina
Sharer, Zalilah
Ahmad, Faiz
author_sort Kabeb, Siti Maznah
collection ePrints
description Epoxy nanocomposites coatings filled with hybrid graphene oxide/halloysites (GO/HNT) based intumescent flame-retardant additives (IFR) have been fabricated and investigated in terms of flame retardancy property, thermal stability, and adhesion strength. The dispersion and interaction of the nanofillers with the matrix were characterized by transmission electron microscopy (TEM) and Fourier transform infrared (FTIR). The synergistic flame-retardant effects of ammonium polyphosphate (APP) on flame retardancy properties and thermal stability were investigated by limiting oxygen index (LOI) and thermogravimetric analysis (TGA), respectively. The result shows that the epoxy coating with hybrid GO/HNT based IFR achieve an LOI of 26 % at 1 phr of APP (EGO0.6H0.3APP1). Meanwhile, the maximum mass loss of the EGO0.6H0.3APP1 coating sample is 391.0 °C which showing an increment by 1.3 % compared with neat epoxy coating, demonstrating excellent thermal stability performance. The char residue also suggests, APP played a synergistic flame-retardant mechanism with a combination of hybrid GO/HNT. The presence of hybrid GO/HNT/IFR considerably enhances adhesion strength between the coating material and metal substrate. The EGO0.6H0.3APP1 showed the maximum LOI value, thermal stability, and adhesion strength among the studied formulations.
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spelling utm.eprints-1011062023-06-01T08:17:58Z http://eprints.utm.my/101106/ Intumescent flame retardant coating based graphene oxide and halloysite nanotubes Kabeb, Siti Maznah Hassan, Azman Mohamad, Zurina Sharer, Zalilah Ahmad, Faiz Q Science (General) Epoxy nanocomposites coatings filled with hybrid graphene oxide/halloysites (GO/HNT) based intumescent flame-retardant additives (IFR) have been fabricated and investigated in terms of flame retardancy property, thermal stability, and adhesion strength. The dispersion and interaction of the nanofillers with the matrix were characterized by transmission electron microscopy (TEM) and Fourier transform infrared (FTIR). The synergistic flame-retardant effects of ammonium polyphosphate (APP) on flame retardancy properties and thermal stability were investigated by limiting oxygen index (LOI) and thermogravimetric analysis (TGA), respectively. The result shows that the epoxy coating with hybrid GO/HNT based IFR achieve an LOI of 26 % at 1 phr of APP (EGO0.6H0.3APP1). Meanwhile, the maximum mass loss of the EGO0.6H0.3APP1 coating sample is 391.0 °C which showing an increment by 1.3 % compared with neat epoxy coating, demonstrating excellent thermal stability performance. The char residue also suggests, APP played a synergistic flame-retardant mechanism with a combination of hybrid GO/HNT. The presence of hybrid GO/HNT/IFR considerably enhances adhesion strength between the coating material and metal substrate. The EGO0.6H0.3APP1 showed the maximum LOI value, thermal stability, and adhesion strength among the studied formulations. Elsevier Ltd 2022 Article PeerReviewed Kabeb, Siti Maznah and Hassan, Azman and Mohamad, Zurina and Sharer, Zalilah and Ahmad, Faiz (2022) Intumescent flame retardant coating based graphene oxide and halloysite nanotubes. Materials Today: Proceedings, 51 (2). pp. 1288-1292. ISSN 2214-7853 http://dx.doi.org/10.1016/j.matpr.2021.10.321 DOI:10.1016/j.matpr.2021.10.321
spellingShingle Q Science (General)
Kabeb, Siti Maznah
Hassan, Azman
Mohamad, Zurina
Sharer, Zalilah
Ahmad, Faiz
Intumescent flame retardant coating based graphene oxide and halloysite nanotubes
title Intumescent flame retardant coating based graphene oxide and halloysite nanotubes
title_full Intumescent flame retardant coating based graphene oxide and halloysite nanotubes
title_fullStr Intumescent flame retardant coating based graphene oxide and halloysite nanotubes
title_full_unstemmed Intumescent flame retardant coating based graphene oxide and halloysite nanotubes
title_short Intumescent flame retardant coating based graphene oxide and halloysite nanotubes
title_sort intumescent flame retardant coating based graphene oxide and halloysite nanotubes
topic Q Science (General)
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