Exfoliated and functionalized boron nitride nanosheets towards improved fire resistance and water tolerance of intumescent fire retardant coating
Article
Wang, Cheng, Huo, Siqi, Liu, Shi, Zhang, Qi and Liu, Zhitian. 2021. "Exfoliated and functionalized boron nitride nanosheets towards improved fire resistance and water tolerance of intumescent fire retardant coating." Journal of Applied Polymer Science. 138 (15). https://doi.org/10.1002/app.50177
Article Title | Exfoliated and functionalized boron nitride nanosheets towards improved fire resistance and water tolerance of intumescent fire retardant coating |
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ERA Journal ID | 1671 |
Article Category | Article |
Authors | Wang, Cheng, Huo, Siqi, Liu, Shi, Zhang, Qi and Liu, Zhitian |
Journal Title | Journal of Applied Polymer Science |
Journal Citation | 138 (15) |
Number of Pages | 11 |
Year | 2021 |
Publisher | John Wiley & Sons |
ISSN | 0021-8995 |
1097-4628 | |
Digital Object Identifier (DOI) | https://doi.org/10.1002/app.50177 |
Web Address (URL) | https://onlinelibrary.wiley.com/doi/10.1002/app.50177 |
Abstract | In this work, the exfoliated and functionalized boron nitride (f-BN) nanosheets were prepared via facile treatment and used in the intumescent fire retardant (IFR) coatings, which offer passive fire protection to the steel. To acquire the best fire resistance, the formula of the coating was optimized using response surface methodology (RSM) based on central composite design. According to the result, the optimal sample, with 36.2 wt% ammonium polyphosphate (APP), 27.4 wt% pentaerythritol (PER), 16.8 wt% melamine (MEL), and 7.9 wt% f-BN, was prepared and its fire resistance was tested in our lab. At the end of fire resistance test, the backside temperature of optimal sample was only 185.2°C, which was very close to the RSM-predicted result, indicating satisfactory fire resistance. During the test, the coating decomposed to form an intumescent char layer with high graphitization degree and compactness, thus suppressing the transfer of heat and protecting the underlying steel. In addition, the optimal coating possessed great water tolerance and thermal stability, and its water contact angle and char yield reached up to 66.7° and 40.5%, respectively. Hence, this IFR coating with satisfied fire retardancy and water tolerance has broad practical future in the fire safety of steel structure. © 2020 Wiley Periodicals LLC. |
Keywords | coatings |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Wuhan Institute of Technology, China |
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