化工进展2026，Vol.45Issue(2)：722-732,11.DOI:10.16085/j.issn.1000-6613.2025-0345
连续反应釜中间位芳纶制备过程的数值模拟
Numerical simulation of the polymerization process of poly(m-phenylene isophthalamide)in a continuous reactor
朱俊生 1吕继平 2宋西全 2牟绍伟 2刘定胜1
作者信息
- 1. 大连理工大学化工学院,辽宁 大连 116024
- 2. 泰和新材集团股份有限公司,山东 烟台 264000
- 折叠
摘要
Abstract
Poly(m-phenylene isophthalamide),as a special fiber material,has broad applications in many fields,such as clothing,transportation,sport,and electronics.This work established a model for poly(m-phenylene isophthalamide)polycondensation reaction process using computational fluid dynamics(CFD)methods coupling with polymerization reaction kinetics.The numerical investigation systematically examined the effects of key process parameters on polymer molecular weight,along with spatial distributions of reactant concentration,molecular weight distribution,temperature,and viscosity.The results indicated that increasing the mean residence time and enhancing the solvent's acid absorption capacity were beneficial for rapidly increasing the molecular weight of the polymer.As mean residence time increased,the aggregation phenomenon of the reactant at the bottom of the stirrer reduced;the polymer's molecular weight distribution concentrated towards higher molecular weight,the temperature gradient decreased,and the viscosity changed significantly.The established polycondensation model for the continuous reactor provided theoretical guidance for the continuous production of poly(m-phenylene isophthalamide)and aids in the optimization of process parameters and reactor geometric structure.关键词
间位芳纶/混合/缩聚反应/连续反应釜/数值模拟Key words
poly(m-phenylene isophthalamide)/mixing/polycondensation/continuous reactor/numerical simulation分类
化学化工引用本文复制引用
朱俊生,吕继平,宋西全,牟绍伟,刘定胜..连续反应釜中间位芳纶制备过程的数值模拟[J].化工进展,2026,45(2):722-732,11.
