复合抗拉铠装层制备中的固化动力学  

Curing Kinetics in the Manufacture of Composite Tensile Armor Layers

作　　者：鲍蕊 刘军鹏[1] 段梦兰 BAO Rui;LIU Jun-peng;DUAN Meng-lan(College of Safety and Ocean Engineering,China University of Petroleum,Beijing 102249,China;Institute for Ocean Engineering,Tsinghua Shenzhen International Graduate School,Shenzhen 518055,China)

机构地区：[1]中国石油大学(北京)安全与海洋工程学院,北京102249 [2]清华大学深圳国际研究生院海洋工程研究院,深圳518055

出　　处：《科学技术与工程》2025年第9期3613-3619,共7页Science Technology and Engineering

基　　金：国家自然科学基金(52171286)。

摘　　要：为研究复合抗拉铠装层制造成型过程中的高温热固化化学问题,探讨了T700碳纤维增强环氧树脂预浸料的固化动力学特性,通过对预浸料进行差示扫描量热(differential scanning calorimetry,DSC)分析,利用Starink法精确计算了自催化反应固化动力学参数,建立了固化动力学模型。试验结果表明:在更高的加热速率下,预浸料坯的反应速率显著增加,但达到峰值后反应速率下降更快,导致最终反应热的平均值更低。该预浸料的固化反应表观活化能为77.04 kJ/mol,所构建的固化动力学模型与试验数据高度匹配。Considering the high-temperature thermosetting chemical issues in the manufacturing process of composite tensile armor layers,the curing kinetics of T700/epoxy prepregs were explored.Through differential scanning calorimetry(DSC)analysis and the Starink method,the autocatalytic reaction curing kinetic parameters were accurately calculated.Then a curing kinetic model was established.It has been shown by experimental results that the reaction rate of the prepreg is significantly increased at higher heating rates.After the peak is reached,the reaction rate is decreased more rapidly,resulting in a lower average final reaction heat.The apparent activation energy of the curing reaction for this prepreg is 77.04 kJ/mol,and high consistency with the experimental data is exhibited by the constructed curing kinetic model.

关 键 词：碳纤维/环氧树脂 预浸料 固化动力学 DSC分析 

分 类 号：TB332[一般工业技术—材料科学与工程]