CAJ | 학술논문

采用傅里叶变换红外（FT-IR）研究了聚叠氮缩水甘油醚（GAP）与多异氰酸酯（N100）之间的反应动力学。得到60、70、80、90℃下分别用 TPB（三苯基铋）和 T12（二月桂酸二丁基锡）作催化剂时体系的反应机理函数和表观活化能。结果表明，GAP/N100体系的固化反应为一级动力学反应；当两种固化催化剂质量分数均为0．015％，以TPB 为催化剂时体系整个固化过程遵循一级动力学规律；以 T12为催化剂时，在转化率达80％之前，体系遵循一级反应规律，反应机理函数为 g（α）＝-ln（1-α），之后反应机理函数转变为三维（球对称）扩散 g（α）＝[1-（1-α）1/3]2；用 T12作催化剂时，GAP/N100固化反应结束时间远低于用 TPB 作催化剂时所用时间。
채용부리협변환홍외（FT-IR）연구료취첩담축수감유미（GAP）여다이청산지（N100）지간적반응동역학。득도60、70、80、90℃하분별용 TPB（삼분기필）화 T12（이월계산이정기석）작최화제시체계적반응궤리함수화표관활화능。결과표명，GAP/N100체계적고화반응위일급동역학반응；당량충고화최화제질량분수균위0．015％，이TPB 위최화제시체계정개고화과정준순일급동역학규률；이 T12위최화제시，재전화솔체80％지전，체계준순일급반응규률，반응궤리함수위 g（α）＝-ln（1-α），지후반응궤리함수전변위삼유（구대칭）확산 g（α）＝[1-（1-α）1/3]2；용 T12작최화제시，GAP/N100고화반응결속시간원저우용 TPB 작최화제시소용시간。
The reaction kinetics of glycidyl azide polymer (GAP)with polyisocyanate (N100)was studied by the FT-IR method.Using triphenyl bismuth(TPB)and di-n-butyltin dilaurate (T12)as catalysts,the reaction mecha-nism function and activation energies of the two systems at 60,70,80 and 90℃ were obtained.The results show that the curing reaction of GAP/N100 system is determined as first order reaction.When the content of TPB and T12 is 0.015%,respectively,the whole curing reaction process using TPB as catalyst obeys the first-order kinetic law,the system using T12 as catalyst obeys the first-order kinetic law and the reaction mechanism function is g(α)=-ln(1 -α)when the degree of conversation is less than 80%,while the system obeys three-dimensional (spheri-cal symmetric)diffusion and the reaction mechanism function is g(α)=[1 -(1-α)1/3 ]2 when the degree of conver-sation is over 80%.The curing reaction time of GAP/N100 using T12 as catalyst is much less than that of GAP/N100 using TPB as catalyst.