Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly

Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly

Fire-retardant chitosan/sodium phytate/MgO nanoparticle (CH/SP/nano-MgO) coatings were loaded on a wood substrate via electrostatic layer-by-layer self-assembly and characterized by scanning electron microscopy and energy-dispersive spectrometry. The flammability and thermal degradation of the origi...

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Bibliographic Details
Main Authors: Feiyue Zhao, Tingli Tang, Sijie Hou, Yanchun Fu
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Coatings
Subjects:
wood
surface modification
fire retardancy
chitosan
sodium phytate
MgO nanoparticles
Online Access:https://www.mdpi.com/2079-6412/10/9/848
id doaj-518a9afb50cb45a5baf8ed99ab029c84
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spelling doaj-518a9afb50cb45a5baf8ed99ab029c842020-11-25T03:53:23ZengMDPI AGCoatings2079-64122020-08-011084884810.3390/coatings10090848Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-AssemblyFeiyue Zhao0Tingli Tang1Sijie Hou2Yanchun Fu3College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, ChinaFire-retardant chitosan/sodium phytate/MgO nanoparticle (CH/SP/nano-MgO) coatings were loaded on a wood substrate via electrostatic layer-by-layer self-assembly and characterized by scanning electron microscopy and energy-dispersive spectrometry. The flammability and thermal degradation of the original wood and wood samples treated with chitosan, chitosan/sodium phytate, chitosan/sodium phytate/MgO nanoparticles were studied by limiting oxygen index (LOI), exposure combustion experiments and thermogravimetric analysis (TGA), respectively. The CH/SP/nano-MgO coating served as an intumescent fire-retardant system that created a physical protection cover and exhibited the best fire retardant performance. The LOI value was 30.2% and required approximately 16–17 s to self-extinguish when exposed to air. The TGA curves also showed that char formation protected the wood from combustion.https://www.mdpi.com/2079-6412/10/9/848woodsurface modificationfire retardancychitosansodium phytateMgO nanoparticles
collection DOAJ
language English
format Article
sources DOAJ
author Feiyue Zhao
Tingli Tang
Sijie Hou
Yanchun Fu
spellingShingle Feiyue Zhao
Tingli Tang
Sijie Hou
Yanchun Fu
Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly
Coatings
wood
surface modification
fire retardancy
chitosan
sodium phytate
MgO nanoparticles
author_facet Feiyue Zhao
Tingli Tang
Sijie Hou
Yanchun Fu
author_sort Feiyue Zhao
title Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly
title_short Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly
title_full Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly
title_fullStr Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly
title_full_unstemmed Preparation and Synergistic Effect of Chitosan/Sodium Phytate/MgO Nanoparticle Fire-Retardant Coatings on Wood Substrate through Layer-By-Layer Self-Assembly
title_sort preparation and synergistic effect of chitosan/sodium phytate/mgo nanoparticle fire-retardant coatings on wood substrate through layer-by-layer self-assembly
publisher MDPI AG
series Coatings
issn 2079-6412
publishDate 2020-08-01
description Fire-retardant chitosan/sodium phytate/MgO nanoparticle (CH/SP/nano-MgO) coatings were loaded on a wood substrate via electrostatic layer-by-layer self-assembly and characterized by scanning electron microscopy and energy-dispersive spectrometry. The flammability and thermal degradation of the original wood and wood samples treated with chitosan, chitosan/sodium phytate, chitosan/sodium phytate/MgO nanoparticles were studied by limiting oxygen index (LOI), exposure combustion experiments and thermogravimetric analysis (TGA), respectively. The CH/SP/nano-MgO coating served as an intumescent fire-retardant system that created a physical protection cover and exhibited the best fire retardant performance. The LOI value was 30.2% and required approximately 16–17 s to self-extinguish when exposed to air. The TGA curves also showed that char formation protected the wood from combustion.
topic wood
surface modification
fire retardancy
chitosan
sodium phytate
MgO nanoparticles
url https://www.mdpi.com/2079-6412/10/9/848
work_keys_str_mv AT feiyuezhao preparationandsynergisticeffectofchitosansodiumphytatemgonanoparticlefireretardantcoatingsonwoodsubstratethroughlayerbylayerselfassembly
AT tinglitang preparationandsynergisticeffectofchitosansodiumphytatemgonanoparticlefireretardantcoatingsonwoodsubstratethroughlayerbylayerselfassembly
AT sijiehou preparationandsynergisticeffectofchitosansodiumphytatemgonanoparticlefireretardantcoatingsonwoodsubstratethroughlayerbylayerselfassembly
AT yanchunfu preparationandsynergisticeffectofchitosansodiumphytatemgonanoparticlefireretardantcoatingsonwoodsubstratethroughlayerbylayerselfassembly
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