郑振荣^1,2,韩晨晨¹,张楠楠¹,赵晓明^1,2

• 1:天津工业大学 纺织学院，天津 300387
• 2:天津工业大学 先进纺织复合材料教育部重点实验室，天津 300387

摘要(Abstract)：

建立聚合物涂层液固化过程中溶剂扩散的数值模型，揭示固化成膜过程中溶剂的扩散过程，可为涂膜固化条件设置、涂膜缺陷的预防及新型干燥设备的优化设计提供理论指导。根据菲克第二定律及Vrentas-Duda自由体积理论建立了涂覆于玻璃基体上聚甲基丙烯酸甲酯（PMMA）/丙酮涂层液固化过程的传质传热模型，并运用伽辽金有限元方法对模型方程求解，计算得到涂膜固化期间丙酮和聚甲基丙烯酸甲酯的浓度分布，利用拉曼光谱对模型的有效性进行了实验验证。结果表明：在固化初期阶段（0~700 s），模型预测值与实验值有良好的一致性，两者相对误差范围为0.37%~4.5%；而在固化后期阶段（844 s~），丙酮浓度预测值大都高于实验值，表明模型预测的涂膜固化过程比实际扩散过程要慢一些。

关键词(KeyWords)： 共焦拉曼光谱;聚合物涂层;自由体积理论;传质传热模型;固化过程;丙酮浓度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（51206122）；天津科委自然科学基金（17JCTPJC47800）。

作者(Author): 郑振荣^1,2,韩晨晨¹,张楠楠¹,赵晓明^1,2

DOI: 10.3969/j.issn.1003-9015.2018.01.014

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