Analysis and optimization of temperature distribution in carbon fiber reinforced composite materials during microwave curing process
Analysis and optimization of temperature distribution in carbon fiber reinforced composite materials during microwave curing process
复制标题
碳纤维增强复合材料微波固化过程温度分布分析与优化
DOI：
10.1016/j.jmatprotec.2013.10.012
复制
发表时间：
2014-03-01
影响因子：
6.3
通讯作者：
Gao, James
中科院分区：
文献类型：
--
作者：
Li, Nanya;Li, Yingguang;Gao, James
采用真空辅助微波固化技术和改进的光学传感系统，研究了碳纤维增强复合材料层合板的层向和厚度对层合板的温度分布的影响。研究了两种不同类型的环氧树脂体系。结果表明，层向对复合材料的温度分布没有影响。而厚度是重要的影响因素。在22.5 mm厚的层压板上发现了近10℃的温差。通过对微波固化过程物理机理的分析，发现降低表面层合板的热损失，提高中心层合板对微波能量的吸收，从而降低了层合板的温级差。采用改性微波固化技术制备的层压板最大温差为2.1℃，与热加热工艺制备的层压板最大温差为5.29℃相比，改性微波固化工艺制备的层压板最大温差降低了60%，固化时间缩短了25%。(C) 2013 Elsevier B.V.版权所有
Vacuum assisted microwave curing technologies and modified optical sensing systems have been employed to investigate the influence of ply orientation and thickness on through-thickness temperature distribution of carbon fiber reinforced composite laminates. Two different types of epoxy systems have been studied. The results demonstrated that the ply orientation did not affect the temperature distribution of composite materials. However, the thickness was an important influencing factor. Nearly 10 C temperature difference was found in 22.5 mm thick laminates. Through analyzing the physical mechanisms during microwave curing, the temperature difference decreased when the heat-loss in surface laminates was reduced and the absorption of microwave energy in the center laminates was improved. The maximum temperature difference of the samples formed using the modified microwave curing technologies in this research could be reduced by 79% to 2.1 C. Compared with the 5.29 C temperature difference of laminates using thermal heating process, the maximum temperature difference in laminates using modified microwave curing technologies was reduced by 60%, and the curing time was cut down by 25%. (C) 2013 Elsevier B.V. All rights reserved.