系统仿真学报 ›› 2015, Vol. 27 ›› Issue (3): 486-493.

• 仿真建模与仿真算法及数值仿真 • 上一篇    下一篇

碳纤维凝固过程的径向扩散模型与仿真分析

任立红1,2, 徐峰1, 丁永生1,2, 张韬1   

  1. 1.东华大学信息科学与技术学院, 上海 201620;
    2.数字化纺织服装技术教育部工程研究中心, 上海 201620
  • 收稿日期:2013-11-19 修回日期:2014-04-10 出版日期:2015-03-08 发布日期:2020-08-20
  • 作者简介:任立红(1966-),女,内蒙古赤峰人,博士,副教授,研究方向为智能系统、网络智能、物联网、数字化纺织等。
  • 基金资助:
    国家自然科学基金重点项目(61134009);国家自然科学基金(61473077)

Simulation Analysis on Radial Diffusion Model for Solidification Process of Carbon Fiber Production

Ren Lihong1,2, Xu Feng1, Ding Yongsheng1,2, Zhang Tao1   

  1. 1. College of Information Sciences and Technology, Donghua University, Shanghai 201620, China;
    2. Engineering Research Center of Digitized Textile and Fashion Technology of Ministry of Education, Shanghai 201620, China
  • Received:2013-11-19 Revised:2014-04-10 Online:2015-03-08 Published:2020-08-20

摘要: 在以聚丙烯腈二甲基亚砜溶液为纺丝液、二甲基亚砜水溶液为凝固液的纺丝体系中,研究碳纤维纺丝的凝固过程,提出求解径向的扩散数学模型,得到各径向的浓度分布及浓度随时间变化的曲线,通过改变模型参数考察纺丝条件对凝固过程的影响。仿真结果表明,增加纺丝液中的固含量,延长凝固时间,使用较粗纺丝条会延长凝固时间,有利于获得结构均匀、致密的纤维。提出的数学模型求解方法通用性好,可用于求解其他纤维纺丝过程的数学模型。

关键词: 聚丙烯腈, 凝固过程, 径向扩散, 纺丝系统

Abstract: Considering that Polyacrylonitrile Dimethyl Sulfoxide solution and Dimethyl Sulfoxide aqueous solution were used as the spinning dope and coagulating liquid respectively, the solidification process in spinning system of carbon fiber was studied. The radial concentration distribution and the curve of time-dependence concentration were proposed. The influence of the spinning conditions on the solidification process was investigated by changing the parameters of the model. The results show that extending the coagulation time by using coarser article spinning or increasing the solid content in dope can help to obtain the fiber with uniform structure and densification. The proposed method has good generality and can be used for solving the mathematical models of other spinning systems.

Key words: Polyacrylonitrile, solidification process, radial diffusion, spinning system

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