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测试与分析 樊洋 等·端羟基聚丁二烯基聚氨酯的制备及其阻燃性能
[19] 苑吉河，张曦，李新田，等 .4pment of a 力学模拟 [J]. 四川师范大学学报 ( 自然科学版 )，2018,41(01):102-
ReaxFF Reactive Force Field for Tetrabutylphosphonium Glycinate/ 109.
Preparation of hydroxyl-terminated polybutadiene-based polyurethane
and its flame retardant properties
Fan Yang, Li Minghao, Fu Xuesong, Chen Guoqing *
(School of Materials Science and Engineering, Dalian University of Technology, Liaoning Provincial Key
Laboratory of Solidification Control and Digital Fabrication Technology, Dalian 116085, Liaoning, China)
Abstract: Using HTPB, PPG, PCL and MDI as raw materials and DOPO as flame retardant, a hydroxyl-
terminated polybutadiene-based polyurethane was prepared, and its mechanical and flame retardant
properties were studied. The results show that with the increase of DOPO content, the mechanical and flame
retardant properties of polyurethane gradually improve. When the DOPO content is 10%, its hardness, tensile
strength and elastic modulus are Shore 92D, and , respectively. enhanced, the carbon
residue rate increased by %, and the heat release amount was suppressed by %. Molecular dynamics
simulation results show that DOPO increases its flame retardan