Effect of Organic–Inorganic Mixed Intumescent Flame Retardants on Fire-Retardant Coatings
Source abstract
Abstract
Expandable graphite (EG) was modified with a charring agent and organic–inorganic hybridized intumescent flame retardants (MEG) were synthesized. This study uses a cone calorimeter (CCT) and a DaqPRO 5300 radiation heat flow meter (Fourtec, Tel Aviv, Israel) to evaluate the fire-resistant properties influenced by MEG on intumescent fire-retardant coatings. The impact of MEG on the thermal degradation of these coatings was investigated through the use of thermogravimetric analysis (TGA). The results obtained by CCT demonstrated that the incorporation of MEG markedly diminished the heat release rate and total heat release rate of the coating, in addition to enhancing the char residue compared to coatings with only expandable graphite (EG). Furthermore, TGA results demonstrate that adding MEG increases the weight of the char residue at elevated temperatures, suggesting improved thermal stability. Based on these findings, MEG exhibits a synergistic flame-retardant effect when combined with intumescent fire-retardant (IFR) systems. This synergy not only improves the flame-retardant properties of the coatings but also enhances their overall thermal stability, making MEG a promising additive for developing more efficient fire-retardant materials. Thus, MEG-modified coatings offer superior protection against fire hazards, highlighting their potential for practical applications in fire safety.
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Research context
OpenAlex topics: Flame retardant materials and properties · Material Properties and Applications · Environmental and Industrial Safety
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering, Hebei University of Architecture, Zhangjiakou 075000, China
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China
State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Light Alloy Research Institute, Central South University, Changsha 410083, China
CRRC Qingdao Sifang Co., Ltd., Qingdao 266000, China
Funding
National Natural Science Foundation of China · State Key Laboratory for High-Performance Complex Manufacturing, Central South University, China · Science and Technology Research and Development Command Plan Project of Zhangjiakou, China · 2024 Graduate Innovation Fund project of Hebei University of Architecture
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