Kinetics modeling of carbon‐fiber‐reinforced bismaleimide composites under microwave and thermal curing
Kinetics modeling of carbon‐fiber‐reinforced bismaleimide composites under microwave and thermal curing
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DOI：
10.1002/app.43770
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发表时间：
2016-09
影响因子：
3
通讯作者：
Nanya Li;Yingguang Li;Linglin Zhang;Xiaozhong Hao
中科院分区：
文献类型：
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作者：
Nanya Li;Yingguang Li;Linglin Zhang;Xiaozhong Hao
本文重点分析了碳纤维增强双马来酰亚胺（BMI）复合材料在微波（MW）固化过程中的固化动力学。非等温差示扫描量热法（DSC）的方法被用来获得一个准确的动力学模型。通过DSC、傅里叶变换红外光谱和动态力学分析，分析了通过热和微波加热固化的树脂和复合材料的固化程度、化学表征和玻璃化转变温度。实验结果表明，分子量的存在加速了BMI树脂的交联反应，并对反应过程产生不同程度的影响，尤其是对玻璃化转变温度和化学键的影响。然而，在热固化和微波固化过程中，当碳纤维加入到BMI树脂中时，BMI树脂的固化反应速率降低。根据实验结果，建立了BMI复合材料的固化动力学模型，为MW固化分析提供了理论依据。© 2016 Wiley Periodicals，Inc. J.应用聚合物Sci.2016，133，43770.
This article focuses on the analysis of the curing kinetics of carbon‐fiber‐reinforced bismaleimide (BMI) composites during microwave (MW) curing. A nonisothermal differential scanning calorimetry (DSC) method was used to obtain an accurate kinetic model. The degree of curing, chemical characterization, and glass‐transition temperature of the resin and composites cured by thermal and MW heating were analyzed with DSC, Fourier transform infrared spectroscopy, and dynamic mechanical analysis. The experimental results indicate that MW accelerated the crosslinking reaction of the BMI resin and had different effects on the reaction processes, especially for the glass‐transition temperature and chemical bonds. However, the curing reaction rate of the BMI resin decreased when the carbon fibers were added to the BMI resin during thermal and MW curing. According to the experimental results, the curing kinetic model of the BMI composite was used to provide a theoretical foundation for MW curing analysis. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci.2016,133, 43770.