Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/155333
Title: Intumescent fire-retardant acrylic coatings : effects of additive loading ratio and scale of testing
Authors: Ng, Yan Hao
Dasari, Aravind
Tan, Kang Hang
Qian, Lijun
Keywords: Engineering::Materials
Issue Date: 2021
Source: Ng, Y. H., Dasari, A., Tan, K. H. & Qian, L. (2021). Intumescent fire-retardant acrylic coatings : effects of additive loading ratio and scale of testing. Progress in Organic Coatings, 150, 105985-. https://dx.doi.org/10.1016/j.porgcoat.2020.105985
Project: L2NICCFP1-2013-4
NTU-JTC I3C (RCAs 16/277 and 17/365)
Journal: Progress in Organic Coatings
Abstract: This work explores the importance of varying the ratio of conventional flame-retardant additives and the scale of testing on the thermal and flammability/fire performance of acrylic-based coatings. Ammonium polyphosphate (APP), pentaerythritol (PER), and expandable graphite (EG) are used as intumescent additives by varying their ratios as 1:1:3 or 1:3:1 or 3:1:1. APP, PER and EG are used as acid source, carbonising agent and blowing agent, respectively. Despite the different roles of APP, PER, and EG, in all the compositions, the physical mechanism of exfoliation of graphite played an important role in offering the fire protection. With higher loadings of EG, the fire-resistance time was higher. However, there were clear differences in the protection extent when tested in a furnace under one-dimensional heat transfer conditions (bench-scale) as opposed to three-dimensional large-scale testing. Parameters that are not intrinsic to the coating system like char cohesion, cracking, delamination from the substrate, rapid and non-directional expansion, and even higher heat fluxes experienced by the edges of the I steel section affect the fire performance.
URI: https://hdl.handle.net/10356/155333
ISSN: 0300-9440
DOI: 10.1016/j.porgcoat.2020.105985
Schools: School of Civil and Environmental Engineering 
School of Materials Science and Engineering 
Rights: © 2020 Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles
MSE Journal Articles

SCOPUSTM   
Citations 20

22
Updated on Mar 26, 2024

Web of ScienceTM
Citations 20

21
Updated on Oct 28, 2023

Page view(s)

143
Updated on Mar 28, 2024

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.