Cure kinetics characterization and monitoring of an epoxy resin using DSC, Raman spectroscopy, and DEA
Cure kinetics characterization and monitoring of an epoxy resin using DSC, Raman spectroscopy, and DEA
复制标题
DOI：
10.1016/j.compositesa.2013.01.021
复制
发表时间：
2013-06-01
影响因子：
8.7
通讯作者：
Kessler, Michael R.
中科院分区：
文献类型：
--
作者：
Hardis, Ricky;Jessop, Julie L. P.;Kessler, Michael R.
厚截面纤维增强聚合物(FRP)的使用越来越多地用于许多工业应用，如风力涡轮机叶片。现场固化监测对于直观观察玻璃钢生产过程中的固化过程具有重要意义。在这项工作中，研究了拉曼光谱和介电分析(DEA)，以现场监测的固化环氧树脂。首先用差示扫描量热法(DSC)表征了固化行为，并确定了描述环氧树脂固化行为和动力学参数的最佳唯象反应模型。并建立了T-g与固化程度的关系。比较了拉曼光谱和DEA在等温条件下得到的固化程度与DSC得到的固化程度。在三种方法之间观察到了很好的一致性，支持了这些在线固化监测方法在制造过程中的潜力。文中还讨论了厂内监测的实施方案。(C)2013爱思唯尔有限公司。保留所有权利。
The use of thick sections of fiber-reinforced polymers (FRPs) is increasing for numerous industrial applications such as wind turbine blades. In situ cure monitoring is very important to directly observe the cure process of FRPs during the manufacturing process. In this work, Raman spectroscopy and dielectric analysis (DEA) are investigated for in situ cure monitoring of an epoxy resin. The cure behavior is first characterized using differential scanning calorimetry (DSC) as a baseline comparison, and the best-fit phenomenological reaction model is determined to describe the cure behavior of the epoxy resin as well as the kinetic parameters. The relationship between T-g and degree of cure is also established. The degree of cure obtained from Raman spectroscopy and DEA under isothermal conditions is compared to that obtained from DSC. A good agreement is observed among the three methods, supporting the potential of these in situ cure monitoring methods during manufacturing. An implementation plan for in-plant monitoring is also discussed. (C) 2013 Elsevier Ltd. All rights reserved.