碳纤维/环氧树脂复合材料拉挤固化过程的数值模拟研究  

Numerical simulation study on the pultrusion curing process of carbon fiber/epoxy resin composite materials

作　　者：冯京 张鹏翔 姜悦 朱立平 李爽 席剑飞[3] FENG Jing;ZHANG Pengxiang;JIANG Yue;ZHU Liping;LI Shuang;XI Jianfei(Nanjing Fiberglass Research&Design Institute Co.,Ltd.,Nanjing 210012,China;Sinoma Wind Power Blade(Funing)Co.,Ltd.,Yancheng 224400,China;School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210023,China)

机构地区：[1]南京玻璃纤维研究设计院有限公司,南京210012 [2]中材科技(阜宁)风电叶片有限公司,盐城224400 [3]南京师范大学能源与机械工程学院,南京210023

出　　处：《复合材料科学与工程》2025年第3期63-70,共8页Composites Science and Engineering

基　　金：江苏省碳达峰碳中和科技创新专项资金(BE2022008)。

摘　　要：在复合材料拉挤成型过程中,其内部温度与树脂的固化速率的变化呈现出一组强耦合关系。根据复合材料固化过程的非稳态热传导和固化动力学理论建立二维模型,系统开展了不同拉挤工况对固化过程的影响研究。数值模拟结果表明,在相同条件下,增大树脂体积分数、提升壁面温度、适当提升拉挤速度均可以促进固化过程。相较于基准案例,当树脂体积分数增大为0.5、壁面温度提高到220℃、拉挤速度提升到0.9 m/min时,固化时间分别缩短了约25%、67%、47%。复合材料的有效热导率和固化反应动力学参数对材料的温度场和固化度场影响很大,主导着复合材料的拉挤固化过程。本文研究结果为优化拉挤工艺、确定合理的工艺参数提供了一定的理论依据。In the pultrusion process of composite materials,the internal temperature and the curing rate of the resin show a set of strong coupling relationships.According to the theory of unsteady heat conduction and curing dynamics during the curing process of composite materials,a two-dimensional model was established,and systematically carried out different working condition of pultrusion research on the influence of the curing process.The numerical simulation results showed that under the same conditions,increasing the volume fraction of resin,increasing the wall temperature and increasing the pultrusion speed can promote the curing process.Compared with the benchmark case,when the volume fraction of resin increases to 0.5,wall temperature to 220℃,pultrusion speed up to 0.9 m/min,the curing time was reduced by about 25%,67%and 47%respectively.The effective thermal conductivity and curing reaction kinetic parameters of the composite have great influence on the temperature field and curing degree field,which dominate the pultrusion curing process of the composite.The research results in this paper provide a theoretical basis for optimizing pultrusion process and determining reasonable process parameters.

关 键 词：碳纤维 拉挤固化工艺 固化反应动力学 数值模拟 

分 类 号：TB332[一般工业技术—材料科学与工程]