Titre : |
A facile strategy to fabricate an intumescent fire-retardant coating with improved fire resistance and water tolerance for steel structure |
Type de document : |
texte imprimé |
Auteurs : |
Siqi Huo, Auteur ; Chen Wang, Auteur ; Qinghua Hu, Auteur ; Shi Liu, Auteur ; Qi Zhang, Auteur ; Zhitian Liu, Auteur |
Année de publication : |
2020 |
Article en page(s) : |
p. 1401–1411 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Catégories : |
Borate de zinc Caractérisation Combustion Encapsulation IgnifugeantsComposé chimique utilisé pour réduire l'inflammabilité. Il peut être incorporé au produit durant sa fabrication ou appliqué ultérieurement à sa surface. Intumescence (chimie) Morphologie (matériaux) Polyphosphate d'ammonium Résistance à l'humidité:Résistance à l'eau Revêtements -- Propriétés thermiques Revêtements protecteurs Stabilité thermique
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
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. |
Note de contenu : |
- EXPERIMENTAL : Materials - Sample preparation - Characterization
- RESULTS AND DISCUSSION : Characterization of MFBZ - Thermal properties of coatings - Fire resistance and combustion behaviors of coatings - Char morphology - Water resistance of coatings |
DOI : |
https://doi.org/10.1007/s11998-020-00360-1 |
En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-020-00360-1.pdf |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34582 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 5 (09/2020) . - p. 1401–1411