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Journal of Coatings Technology and Research

Published in:

08-06-2020

A facile strategy to fabricate an intumescent fire-retardant coating with improved fire resistance and water tolerance for steel structure

Authors: Siqi Huo, Cheng Wang, Qinghua Hu, Shi Liu, Qi Zhang, Zhitian Liu

Published in: Journal of Coatings Technology and Research | Issue 5/2020

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Abstract

An intumescent fire-retardant coating (IFRC) with improved fire resistance and water tolerance was prepared in this work, resulting from the introduction of microcapsuled ammonium polyphosphate (MFAPP) and zinc borate (MFBZ). The as-prepared coating exhibited great fire resistance and smoke suppression. In the cone calorimetry test, adding only 6 wt% MFBZ dramatically reduced the peak heat release rate, total heat release, and total smoke release by ~ 23.4%, ~ 54.7%, and ~ 81.1%, respectively. In addition, the water resistance and thermal stability of the coatings were also characterized. The char yield of IFRC noticeably increased to 41.7%, indicating good high-temperature stability. Besides, the IFRC showed a water contact angle of 90.1° and maintained good structure and fire resistance after being soaked by water, indicating great water resistance. The enhanced performance portfolio was mainly due to the synergistic effects of ammonium polyphosphate, pentaerythritol, melamine, and zinc borate, and the hydrophobicity of melamine–formaldehyde resin (MF). This work offers an effective approach for the preparation of waterborne intumescent fire-retardant coatings with great fire resistance and water tolerance.

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previous article Sol–gel hybrid films based on organosilanes with long alkyl chains

next article UV-curable superhydrophobic organosilicon/silica hybrid coating on cotton fabric for oil–water separation

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Title: A facile strategy to fabricate an intumescent fire-retardant coating with improved fire resistance and water tolerance for steel structure
Authors: Siqi Huo
Cheng Wang
Qinghua Hu
Shi Liu
Qi Zhang
Zhitian Liu
Publication date: 08-06-2020
Publisher: Springer US
Published in: Journal of Coatings Technology and Research / Issue 5/2020
Print ISSN: 1547-0091
Electronic ISSN: 1935-3804
DOI: https://doi.org/10.1007/s11998-020-00360-1

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