【摘要】 以端羟基聚丁二烯(HTPB)、甲苯二异氰酸酯(TDI)、1,4—丁二醇(BDO)为原料,采用溶液二步法合成了4种硬段含量不同的聚丁二烯聚氨酯弹性体。探讨了反应温度、溶剂对反应速率的影响,并用红外光谱(IR)、差示扫描量热法(DSC)、应力—应变(σ—ε)实验对产物进行了表征。更多还原

【Abstract】 The influences of temperature and solvent on polymerization between hydroxyl terminated polybutadiene liquid rubber and toluene diisocyanate (TDI)were studied. A series of polybutadiene - based polyurethane elastomers were synthesized from the liquid rubber,TDI,1,4 - butanedio,The relationship between the structuer and properties of these polyurethane elastomers was studied.更多还原