Cargando…

Investigation of Flame Retardant Flexible Polyurethane Foams Containing DOPO Immobilized Titanium Dioxide Nanoparticles

In this work, a multi-functional nanoparticle (TiO(2)-KH570-DOPO) has been successfully synthesized through the attachment of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-methacryloxy propyl trimethoxyl silane on the surface of titanium dioxide (TiO(2)). Supercritical carbon dioxide was...

Descripción completa

Detalles Bibliográficos
Autores principales: Dong, Quanxiao, Chen, Keyu, Jin, Xiaodong, Sun, Shibing, Tian, Yingliang, Wang, Feng, Liu, Peng, Yang, Mingshu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6402015/
https://www.ncbi.nlm.nih.gov/pubmed/30960059
http://dx.doi.org/10.3390/polym11010075
_version_ 1783400296098037760
author Dong, Quanxiao
Chen, Keyu
Jin, Xiaodong
Sun, Shibing
Tian, Yingliang
Wang, Feng
Liu, Peng
Yang, Mingshu
author_facet Dong, Quanxiao
Chen, Keyu
Jin, Xiaodong
Sun, Shibing
Tian, Yingliang
Wang, Feng
Liu, Peng
Yang, Mingshu
author_sort Dong, Quanxiao
collection PubMed
description In this work, a multi-functional nanoparticle (TiO(2)-KH570-DOPO) has been successfully synthesized through the attachment of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-methacryloxy propyl trimethoxyl silane on the surface of titanium dioxide (TiO(2)). Supercritical carbon dioxide was used as the solvent in order to increase the grafting level. The chemical structure of TiO(2)-KH570-DOPO was fully characterized using Fourier transform infrared spectra, thermogravimetric analysis and transmission electron microscopy. The modified TiO(2) was incorporated into flexible polyurethane foam (FPUF). The fire performance of FPUF blends was evaluated using microscale combustion calorimetry. Peak heat release rate and total heat release values were reduced from 657.0 W/g and 28.9 kJ/g for neat FPUF sample to 519.2 W/g and 26.8 kJ/g of FPUF specimen containing 10 wt % of TiO(2)-KH570-DOPO. Analysis of thermal stability and the observation of char formation suggests that TiO(2)-KH570-DOPO is active in the condensed phase.
format Online
Article
Text
id pubmed-6402015
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-64020152019-04-02 Investigation of Flame Retardant Flexible Polyurethane Foams Containing DOPO Immobilized Titanium Dioxide Nanoparticles Dong, Quanxiao Chen, Keyu Jin, Xiaodong Sun, Shibing Tian, Yingliang Wang, Feng Liu, Peng Yang, Mingshu Polymers (Basel) Article In this work, a multi-functional nanoparticle (TiO(2)-KH570-DOPO) has been successfully synthesized through the attachment of 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO)-methacryloxy propyl trimethoxyl silane on the surface of titanium dioxide (TiO(2)). Supercritical carbon dioxide was used as the solvent in order to increase the grafting level. The chemical structure of TiO(2)-KH570-DOPO was fully characterized using Fourier transform infrared spectra, thermogravimetric analysis and transmission electron microscopy. The modified TiO(2) was incorporated into flexible polyurethane foam (FPUF). The fire performance of FPUF blends was evaluated using microscale combustion calorimetry. Peak heat release rate and total heat release values were reduced from 657.0 W/g and 28.9 kJ/g for neat FPUF sample to 519.2 W/g and 26.8 kJ/g of FPUF specimen containing 10 wt % of TiO(2)-KH570-DOPO. Analysis of thermal stability and the observation of char formation suggests that TiO(2)-KH570-DOPO is active in the condensed phase. MDPI 2019-01-05 /pmc/articles/PMC6402015/ /pubmed/30960059 http://dx.doi.org/10.3390/polym11010075 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dong, Quanxiao
Chen, Keyu
Jin, Xiaodong
Sun, Shibing
Tian, Yingliang
Wang, Feng
Liu, Peng
Yang, Mingshu
Investigation of Flame Retardant Flexible Polyurethane Foams Containing DOPO Immobilized Titanium Dioxide Nanoparticles
title Investigation of Flame Retardant Flexible Polyurethane Foams Containing DOPO Immobilized Titanium Dioxide Nanoparticles
title_full Investigation of Flame Retardant Flexible Polyurethane Foams Containing DOPO Immobilized Titanium Dioxide Nanoparticles
title_fullStr Investigation of Flame Retardant Flexible Polyurethane Foams Containing DOPO Immobilized Titanium Dioxide Nanoparticles
title_full_unstemmed Investigation of Flame Retardant Flexible Polyurethane Foams Containing DOPO Immobilized Titanium Dioxide Nanoparticles
title_short Investigation of Flame Retardant Flexible Polyurethane Foams Containing DOPO Immobilized Titanium Dioxide Nanoparticles
title_sort investigation of flame retardant flexible polyurethane foams containing dopo immobilized titanium dioxide nanoparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6402015/
https://www.ncbi.nlm.nih.gov/pubmed/30960059
http://dx.doi.org/10.3390/polym11010075
work_keys_str_mv AT dongquanxiao investigationofflameretardantflexiblepolyurethanefoamscontainingdopoimmobilizedtitaniumdioxidenanoparticles
AT chenkeyu investigationofflameretardantflexiblepolyurethanefoamscontainingdopoimmobilizedtitaniumdioxidenanoparticles
AT jinxiaodong investigationofflameretardantflexiblepolyurethanefoamscontainingdopoimmobilizedtitaniumdioxidenanoparticles
AT sunshibing investigationofflameretardantflexiblepolyurethanefoamscontainingdopoimmobilizedtitaniumdioxidenanoparticles
AT tianyingliang investigationofflameretardantflexiblepolyurethanefoamscontainingdopoimmobilizedtitaniumdioxidenanoparticles
AT wangfeng investigationofflameretardantflexiblepolyurethanefoamscontainingdopoimmobilizedtitaniumdioxidenanoparticles
AT liupeng investigationofflameretardantflexiblepolyurethanefoamscontainingdopoimmobilizedtitaniumdioxidenanoparticles
AT yangmingshu investigationofflameretardantflexiblepolyurethanefoamscontainingdopoimmobilizedtitaniumdioxidenanoparticles