eprintid: 14945
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/49/45
datestamp: 2023-11-10 03:29:32
lastmod: 2023-11-10 03:29:32
status_changed: 2023-11-10 01:58:14
type: article
metadata_visibility: show
creators_name: Ullah, S.
creators_name: Ahmad, F.
creators_name: Al-Sehemi, A.G.
creators_name: Assiri, M.A.
creators_name: Raza, M.R.
creators_name: Irfan, A.
title: Effect of expandable graphite and ammonium polyphosphate on the thermal degradation and weathering of intumescent fire-retardant coating
ispublished: pub
keywords: Blowing agents; Boric acid; Coatings; Expansion; Graphite; Morphology; Uranium metallography; Vanadium metallography; Weathering; X ray diffraction; X ray photoelectron spectroscopy, Ammonium polyphosphates; Expandable graphite; Gaseous compounds; Humid environment; Intumescent coating; Intumescent fire retardant coatings; Substrate temperature; Weathering tests, Epoxy resins
note: cited By 17
abstract: This research aims to study the effect of ammonium polyphosphate and expandable graphite on the intumescent coating formulations (ICF). The coating presented in this research article is based on carbon source expandable graphite (EG), blowing agent melamine, acid source ammonium polyphosphate (APP), epoxy resin as a binder with polyamide amine. The stability of the developed coating was verified at 950°C for 1-hour fire test. The results showed that the coating is stable and well bond with the steel substrate. The char was characterized by using FESEM, XRD, FTIR, DTA, TGA, XPS, Py-GCMS and Weathering Test. The morphology of the char was studied by SEM of the coating after furnace fire test. XRD and FTIR show the presence of graphite, borophosphate; boron oxide and sassolite in the residual char. TGA and DTG disclosed that EG improved the residual mass of coating. XPS analysis showed the char residue of IF5-APP-EG contains carbon and oxygen contents 47.50 and 40.70, respectively. Py-GCMS analysis described that the IF5-APP-EG released less gaseous compounds. The weathering test illustrated that's the char expansion of coatings samples was decreased due to the presence of a humid environment and UV light. The IF5-APP-EG showed the maximum char expansion, lower substrate temperature and high residual weight among the studied formulations. © 2020 Wiley Periodicals LLC.
date: 2021
publisher: John Wiley and Sons Inc
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096868797&doi=10.1002%2fapp.50310&partnerID=40&md5=000358915725d2dd1cae9740433dbb6e
id_number: 10.1002/app.50310
full_text_status: none
publication: Journal of Applied Polymer Science
volume: 138
number: 17
refereed: TRUE
issn: 00218995
citation:   Ullah, S. and Ahmad, F. and Al-Sehemi, A.G. and Assiri, M.A. and Raza, M.R. and Irfan, A.  (2021) Effect of expandable graphite and ammonium polyphosphate on the thermal degradation and weathering of intumescent fire-retardant coating.  Journal of Applied Polymer Science, 138 (17).   ISSN 00218995