Effective non-halogen flame-retardants combined with nSiO_(2)particles to improve thermal stability and fire resistance of high-performance polyurethane nanocomposite foams  

作　　者：Lam H.Pham Ngoc Thuy Nguyen Dang Mao Nguyen Tuan An Nguyen Tan Binh Nguyen Jonghwan Suhr Tien Dung Nguyen Mourad Rahim Anh Dung Tran-Le Lucas Terrei Rabah Mehaddi Yuri Ferreira da Silva Patrick Perré DongQuy Hoang 

机构地区：[1]Faculty of Materials Science and Technology,University of Science,Vietnam National University,Ho Chi Minh 700000,Vietnam [2]Vietnam National University,Ho Chi Minh City 700000,Vietnam [3]Universitéde Lorraine,LERMAB,186 Rue de Lorraine 54400 Cosnes-et-Romain,France [4]Department of Polymer Science and Engineering,Sungkyunkwan University,Suwon-si 16419,Republic of Korea [5]School of Mechanical Engineering,Sungkyunkwan University,Suwon-si 16419,Republic of Korea [6]Institute of Applied Materials Science,Vietnam Academy of Science and Technology,01B TL29 District 12,Ho Chi Minh City 700000,Vietnam [7]Laboratory of Technologies Innovative(LTI),University of Picardie Jules Verne,Le Bailly 80025 Amiens Cedex,France [8]Universitéde Lorraine,CNRS,LEMTA,Nancy F-54000,France [9]UniversitéParis-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

出　　处：《Journal of Materials Science & Technology》2024年第36期1-13,共13页材料科学技术(英文版)

基　　金：funded by the Vietnam National University Ho Chi Minh City(VNU-HCM)under grant number C2022-18-41.

摘　　要：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(nSiO_(2))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/nSiO_(2)/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/nSiO_(2)nanocompos-ite,about 20%.In order to further understand the fire-proof mechanism,the residue char layer remaining of the PU/nSiO_(2)/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.

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

分 类 号：TQ3[化学工程]