Fire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions

In this work, intumescent coatings were prepared for protection of wood from fire. The fire-retardant chemical ammonium polyphosphate (APP) is known to have poor resistance to water and high humidity as it is hygroscopic in nature. To improve the water resistance, durability and fire resistance of t...

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Autores principales:	Atif Hussain, Véronic Landry, Pierre Blanchet, Doan-Trang Hoang, Christian Dagenais
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	intumescent coating microencapsulation fire resistance cone calorimeter Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/3594a2b31c104805bfa289e6934830f9
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id	oai:doaj.org-article:3594a2b31c104805bfa289e6934830f9
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spelling	oai:doaj.org-article:3594a2b31c104805bfa289e6934830f92021-11-25T17:15:26ZFire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions10.3390/coatings111112722079-6412https://doaj.org/article/3594a2b31c104805bfa289e6934830f92021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1272https://doaj.org/toc/2079-6412In this work, intumescent coatings were prepared for protection of wood from fire. The fire-retardant chemical ammonium polyphosphate (APP) is known to have poor resistance to water and high humidity as it is hygroscopic in nature. To improve the water resistance, durability and fire resistance of the intumescent coating, APP was modified using a hybrid organic-inorganic polysiloxane encapsulation shell prepared by the sol–gel method. The physical and chemical properties of the intumescent mix containing microencapsulated ammonium polyphosphate (EAPP) particles were characterized by X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR), water absorption, dynamic vapor sorption (DVS) and thermogravimetric analysis (TGA). The EAPP mix showed 50% reduction in water absorption, 75% reduction in water vapor sorption and increased thermal stability when compared to the APP mix. The intumescent coatings were applied on wood samples, and their fire performance was evaluated using a cone calorimeter test. The intumescent coatings containing EAPP mix showed better fire retarding properties with longer time to ignition, lower heat release rate and shorter heat release peak when compared to the coating without EAPP mix. The prepared intumescent coating shows higher resistance to water and moisture, and it has great potential to be used in bio-based construction industry for enhancing the fire resistance of wood.Atif HussainVéronic LandryPierre BlanchetDoan-Trang HoangChristian DagenaisMDPI AGarticleintumescentcoatingmicroencapsulationfire resistancecone calorimeterEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1272, p 1272 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	intumescent coating microencapsulation fire resistance cone calorimeter Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	intumescent coating microencapsulation fire resistance cone calorimeter Engineering (General). Civil engineering (General) TA1-2040 Atif Hussain Véronic Landry Pierre Blanchet Doan-Trang Hoang Christian Dagenais Fire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions
description	In this work, intumescent coatings were prepared for protection of wood from fire. The fire-retardant chemical ammonium polyphosphate (APP) is known to have poor resistance to water and high humidity as it is hygroscopic in nature. To improve the water resistance, durability and fire resistance of the intumescent coating, APP was modified using a hybrid organic-inorganic polysiloxane encapsulation shell prepared by the sol–gel method. The physical and chemical properties of the intumescent mix containing microencapsulated ammonium polyphosphate (EAPP) particles were characterized by X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR), water absorption, dynamic vapor sorption (DVS) and thermogravimetric analysis (TGA). The EAPP mix showed 50% reduction in water absorption, 75% reduction in water vapor sorption and increased thermal stability when compared to the APP mix. The intumescent coatings were applied on wood samples, and their fire performance was evaluated using a cone calorimeter test. The intumescent coatings containing EAPP mix showed better fire retarding properties with longer time to ignition, lower heat release rate and shorter heat release peak when compared to the coating without EAPP mix. The prepared intumescent coating shows higher resistance to water and moisture, and it has great potential to be used in bio-based construction industry for enhancing the fire resistance of wood.
format	article
author	Atif Hussain Véronic Landry Pierre Blanchet Doan-Trang Hoang Christian Dagenais
author_facet	Atif Hussain Véronic Landry Pierre Blanchet Doan-Trang Hoang Christian Dagenais
author_sort	Atif Hussain
title	Fire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions
title_short	Fire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions
title_full	Fire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions
title_fullStr	Fire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions
title_full_unstemmed	Fire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions
title_sort	fire performance of intumescent waterborne coatings with encapsulated app for wood constructions
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3594a2b31c104805bfa289e6934830f9
work_keys_str_mv	AT atifhussain fireperformanceofintumescentwaterbornecoatingswithencapsulatedappforwoodconstructions AT veroniclandry fireperformanceofintumescentwaterbornecoatingswithencapsulatedappforwoodconstructions AT pierreblanchet fireperformanceofintumescentwaterbornecoatingswithencapsulatedappforwoodconstructions AT doantranghoang fireperformanceofintumescentwaterbornecoatingswithencapsulatedappforwoodconstructions AT christiandagenais fireperformanceofintumescentwaterbornecoatingswithencapsulatedappforwoodconstructions
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Fire Performance of Intumescent Waterborne Coatings with Encapsulated APP for Wood Constructions

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