文献类型：期刊文献

中文题名：聚碳酸酯连续熔融终缩聚过程两相稳态模型分析

英文题名：Two-phase model for continuous final stage melt polycondensation of polycarbonate in steady-state analysis

作者：毕丰雷[1];李伟[1];奚桢浩[1];赵玲[1]

机构：[1]华东理工大学化工学院上海多相结构材料化学工程重点实验室,上海200237

年份：2018

卷号：47

期号：12

起止页码：1299

中文期刊名：石油化工

外文期刊名：Petrochemical Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

基金：十三五国家重点研发计划项目(2016YFB0302701);国家自然科学基金项目(21676083);中央高校基本科研业务费专项资金资助项目(22221818014);上海市启明星计划项目(16QB140130)

语种：中文

中文关键词：聚碳酸酯;熔融缩聚;两相模型;稳态分析;反应条件

外文关键词：polycarbonate;melt polycondensation;two-phase model;steady state;reaction conditions

摘要：针对卧式圆盘反应器中聚碳酸酯熔融终缩聚反应过程,建立了聚碳酸酯连续熔融终缩聚的圆盘反应器两相稳态模型,考察了反应温度、反应真空度、停留时间、传质系数、催化剂含量等对聚碳酸酯平均聚合度、不同端基摩尔浓度及小分子苯酚含量的影响。实验结果表明,在反应温度250～290℃、压力10～200 Pa、停留时间80～160 min、传质系数0.011～0.54 s-1、催化剂含量(以双酚A为基准)为0.02%～0.1%(w)的条件下,随温度、真空度、停留时间、传质系数和催化剂含量的增加,聚碳酸酯产物的聚合度逐渐增大,活性反应端基的浓度逐渐降低;熔体相中苯酚的浓度随反应温度和催化剂含量的增加先增加后降低,随反应真空度、停留时间和传质系数的增加逐渐降低。
The two-phase steady-state model was built for the continuous polycarbonate(PC)polycondensation process in a horizontal disk reactor.The effects of different reaction conditions including the reaction temperature,pressure,residence time,mass-transfer coefficient and catalyst content on the polymerization degree and the concentrations of various end groups and phenol were investigated.The twophase steady-state modeling results showed that the polymerization degree of PC products increased and the concentration of reactant end groups decreased with the increas of temperature,vacuum degree,residence time,mass-transfer coefficient and catalyst content under the conditions of the temperature 250-290℃,the vacuum degree 10-200 Pa,the residence time 80-160 min,the mass-transfer coefficient 0.011-0.54 s^-1,and the catalyst mass percent 0.02%-0.1%(w).Additionally,the concentration of phenol in melt had a change from increas to decreasing gradually with increasing temperature or catalyst content and decreased with the increasing of vacuum degree,residence time and mass-transfer coefficient.