Intumescent flame retardant coating based graphene oxide and halloysite nanotubes

Siti Maznah, Kabeb and Azman, Hassan and Zurina, Mohamad and Zalilah, Sharer and Faiz, Ahmad (2021) Intumescent flame retardant coating based graphene oxide and halloysite nanotubes. In: Materials Today: Proceedings. Materials Today: Proceedings; 3rd Symposium on Industrial Science and Technology, SISTEC 2021 , 25 - 26 August 2021 , Kuantan, Pahang. pp. 1288-1292., 51. ISSN 2214-7853

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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.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Carbon; Coating; Intumescent; Nanoclay; Non-flammable
Subjects: Q Science > Q Science (General)
T Technology > TP Chemical technology
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Dr. Siti Maznah Kabeb
Date Deposited: 15 Feb 2024 06:30
Last Modified: 15 Feb 2024 06:30
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