摘要
研究了常规的Sb2 O3 、复合催化剂和C - 94三种催化剂对于PET缩聚反应的宏观动力学。结果表明 ,在相同条件下复合催化剂和C - 94的催化活性明显高于常规的Sb2 O3 催化剂 ;C -94的表观活化能明显高于复合催化剂和常规催化剂 ,其催化PET缩聚反应过程的温度效应显著 ;在有效搅拌条件下 ,三种催化剂在高真空阶段仍有较高的催化活性 ,过程是化学反应控制的。
The reaction kinetics of three catalysts for PET polycondensation are studied. It is indicated from experiments that C-94 and complex catalyst have much higher catalytic activities than Sb 2O 3 under the same condition. The apparent activation energy of C-94 is larger than that of complex catalyst and Sb 2O 3. PET polycondensation process is controlled by the chemical reaction even if in the high vacuum stage by the sufficient stirring.
出处
《合成纤维》
CAS
北大核心
2002年第3期7-9,21,共4页
Synthetic Fiber in China
