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首页> 外文期刊>Polymer Composites >Modeling of heat transfer and crystallization kinetics in thermoplastic composites manufacturing: Pultrusion
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Modeling of heat transfer and crystallization kinetics in thermoplastic composites manufacturing: Pultrusion

机译：热塑性复合材料制造中的传热和结晶动力学建模：拉挤成型

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Whereas pultrusion with thermoset resins has been widely analyzed, there is a scarcity of knowledge about pultrusion with thermoplastic resins. The aims of this work were to strive towards deeper knowledge of temperature distribution and degree of crystallinity in the composite during processing, to develop a tool for process simulations with a variety of processing parameters, and to provide input data to models for pressure and matrix flow. The heat transfer model presented herein describes the temperature distribution within the composite throughout the thermoplastic pultrusion process. The transient heat transfer situation is modeled one-dimensionally through a transverse cross section far from the edges of a high aspect ratio composite. Temperature-dependent thermal properties, partly non-infinite contact conductance, and heat contribution from crystallization were taken into consideration. The degree of crystallinity within the composite was determined as well. The analysis also includes an experimental verification of the heat transfer model. Results show good agreement with experimental data. [References: 27]
机译：尽管已经对使用热固性树脂的拉挤成型进行了广泛分析，但是关于使用热塑性树脂的拉挤成型的知识却很少。这项工作的目的是努力加深对复合材料在加工过程中的温度分布和结晶度的了解，为具有各种加工参数的工艺模拟开发工具，并为压力和基体流动模型提供输入数据。 。本文介绍的传热模型描述了整个热塑性拉挤成型过程中复合材料内的温度分布。通过远离高长宽比复合材料边缘的横截面，对一维传热情况进行一维建模。考虑了温度相关的热性能，部分非无限接触电导以及结晶产生的热量。还确定了复合材料内的结晶度。分析还包括对传热模型的实验验证。结果表明与实验数据吻合良好。 [参考：27]

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