Improved flame resistance properties of unsaturated polyester resin with TiO2-MXOY solid superacid

作     者：Xuexi Chen Mei Wan Ming Gao Yanxia Wang Deqi Yi Xuexi Chen;Mei Wan;Ming Gao;Yanxia Wang;Deqi Yi

作者机构：School of Safety EngineeringNorth China Institute of Science and TechnologyBeijing 101601China School of Environmental EngineeringNorth China Institute of Science and TechnologyBeijing 101601China National Laboratory of Flame Retardant MaterialsSchool of Materials Science and EngineeringBeijingInstitute of TechnologyBeijing 100081China 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2020年第28卷第9期

页      面：2474-2482页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Supported by the National Natural Science Foundation of China(51803057) Hebei Province Science Foundation for Youths(E2019508144) Fundamental Research Funds for the Central Universities(3142017099) 

主　　题：Flame retardance Unsaturated polyester resin(UPR) Solid super acid Cone calorimeter 

摘      要：Five SO4^2-/TiO2-MXOY solid super acids(SSA:Cu@Ti:SSA,Zr@Ti:SSA,Fe@Ti:SSA,Mn@Ti:SSA,Mo@Ti:SSA)were successfully prepared by sol-gel method,and its chemical structure and element content were characterized by X-ray diffraction(XRD)analysis,Fourier transform infrared spectroscopy(FHIR)and energy dispersive spectroscopy(EDS).Then,a compound flame retardant system containing SSA and ammonium polyphosphate/montmorillonite(AM)were was introduced into an unsaturated polyester resin(UPR)to enhance the flame *** effect of SSA on the flammability and thermal stability of the UPR was evaluated by the limiting oxygen index(LOI),cone calorimeter te st(CCT)and thermogravimetric analysis(TGA).The LOI results showed that the flame retardance of the UPR composites was significantly improved with the addition of ***,their heat release rate(HRR),total heat release(THR),the smoke production rate(SPR)and CO and CO2 yield were much *** addition,the initial decomposition temperature of UPR/AM/S SA was delayed,indicating that their thermal stability was increased,and the residual char of UPR/AM/SSA was also increa sed due to strong catalytic of SSA ability for esterification and ***,the microstructure of the residual char after combustion of the UPR composites was studied by the scanning electron microscopy(SEM),and it was found that the char layer structure was more continuous and dense after the addition of the *** sum up,the synergistic effect between SSA and AM was the main factor for the great improvement of flame retardant of UPR composites.