Effective non-halogen flame-retardants combined with nSiO2 particles to improve thermal stability and fire resistance of high-performance polyurethane nanocomposite foams

Lam H.Pham ¹Ngoc Thuy Nguyen ¹Dang Mao Nguyen ²Tuan An Nguyen ¹Tan Binh Nguyen ³Jonghwan Suhr ⁴Tien Dung Nguyen ⁵Mourad Rahim ²Anh Dung Tran-Le ⁶Lucas Terrei ⁷Rabah Mehaddi ⁷Yuri Ferreira da Silva ⁸Patrick Perré ⁸DongQuy Hoang¹

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作者信息

1. Faculty of Materials Science and Technology,University of Science,Vietnam National University,Ho Chi Minh 700000,Vietnam;Vietnam National University,Ho Chi Minh City 700000,Vietnam
2. Université de Lorraine,LERMAB,186 Rue de Lorraine 54400 Cosnes-et-Romain,France
3. Department of Polymer Science and Engineering,Sungkyunkwan University,Suwon-si 16419,Republic of Korea
4. Department of Polymer Science and Engineering,Sungkyunkwan University,Suwon-si 16419,Republic of Korea;School of Mechanical Engineering,Sungkyunkwan University,Suwon-si 16419,Republic of Korea
5. Institute of Applied Materials Science,Vietnam Academy of Science and Technology,01B TL29 District 12,Ho Chi Minh City 700000,Vietnam
6. Laboratory of Technologies Innovative(LTI),University of Picardie Jules Verne,Le Bailly 80025 Amiens Cedex,France
7. Université de Lorraine,CNRS,LEMTA,Nancy F-54000,France
8. Université Paris-Saclay,CentraleSupélec,Laboratoire de Génie des Procédés et Matériaux,SFR Condorcet FR CNRS 3417,Centre Européen de Biotechnologie et de Bioéconomie(CEBB),3 rue des Rouges Terres 51110 Pomacle,France
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Abstract

This study focuses on the improvement of the thermal stability and flame-retardant performance of polyurethane(PU)foam by using effective flame-retardant additives and nano silica(nSiO2)particles from rice husk.The addition of non-halogen flame retardants(FRs)including aluminum trihydroxide(ATH),triphenyl phosphate(TPP),and diammonium phosphate(DAP)leads to markedly enhanced thermal sta-bility and fire resistance of the PU/nSiO2/FRs nanocomposites,resulting in achieving UL-94 HB standard.In particular,the nanocomposites met the UL-94 V-0 criteria thanks to the inclusion of DAP at 25 phr.The LOI value of the nanocomposites reached 26％which is much higher than that of PU/nSiO2 nanocompos-ite,about 20％.In order to further understand the fire-proof mechanism,the residue char layer remaining of the PU/nSiO2/FRs nanocomposites after being burned was also investigated by scanning electron mi-croscopy(SEM)and Fourier transform infrared(FTIR).In addition,the microstructure,thermal stability,thermal conductivity,and mechanical properties of nanocomposites were also evaluated in this study.

Key words

Flame retardancy/Polyurethane/nsio2 nanocomposite/Aluminum hydroxide/Diamonium hydrogen phosphate/Thermal stability/Nano silica from rice husk

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出版年

2024

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCD

影响因子：0.657

ISSN：1005-0302

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