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© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Ethylenediamine modified ammonium polyphosphate (EDA-MAPP) and charring-foaming agents (CFA) were prepared using a simple chemical method and further used to make intumescent flame retardant coatings based on epoxy resin. The content of MAPP and CFA was fixed at a ratio of 2:1. Nanoparticles of magnesium aluminate (MgAl2O4 NPs) have been introduced into the flame retardant coating formulation in various quantities to evaluate the promotional action of MgAl2O4 NPs with a flame retardant coating system. The promotional action of MgAl2O4 NPs on the flame retardant coating formulation was studied using a vertical burning test (UL-94V), limiting oxygen index (LOI), thermogravimetric analysis (TGA) and Fourier transform infra-red spectroscopy (FTIR). The UL-94V results indicated that the addition of MgAl2O4 effectively increased flame retardancy and met the V-0 rating at each concentration. The TGA results revealed that the incorporation of MgAl2O4 NPs at each concentration effectively increased the thermal stability of the flame retardant coating system. Cone-calorimeter experiments show that MgAl2O4 NPs effectively decreased peak heat release rate (PHRR) and total heat release (THR). The FTIR results indicated that MgAl2O4 NPs can react with MAPP and generate a dense char layer that prevents the transfer of oxygen and heat.

Details

Title
Influence of Magnesium Aluminate Nanoparticles on Epoxy-Based Intumescent Flame Retardation Coating System
Author
Abuhimd, Hatem 1 ; Rao, Tentu Nageswara 2   VIAFID ORCID Logo  ; Jung-il, Song 3 ; Yarasani, Prashanthi 4 ; Ahmed, Faheem 5 ; Parvatamma, Botsa 6 ; Alothman, Asma A 7   VIAFID ORCID Logo  ; Murefah Mana AL-Anazy 8 ; Ifseisi, Ahmad A 7 

 National Nanotechnology Center, King Abdulaziz City for Science and Technology, P.O. Box 6086, Riyadh 11442, Saudi Arabia 
 Department of Chemistry, Krishna University, Machilipatnam, Andhra Pradesh 521001, India; [email protected] 
 Department of Mechanical Engineering, Changwon National University, Changwon 51140, Korea; [email protected] 
 Department of Chemistry, Mahatma Gandhi University, Nalgonda, Telangana 508254, India; [email protected] 
 Department of Physics, College of Science, King Faisal University, Hofuf, Al-Ahsa 31982, Saudi Arabia 
 Department of Organic Chemistry, Gayathri P.G Courses, Gotlam, Vizianagaram 535003, India; [email protected] 
 Chemistry Department, College of Science, King Saudi University, Riyadh 11451, Saudi Arabia; [email protected] (A.A.A.); [email protected] (A.A.I.) 
 Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia; [email protected] 
First page
968
Publication year
2020
Publication date
2020
Publisher
MDPI AG
e-ISSN
20796412
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2548334136
Copyright
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.