Investigation of the Curing Kinetics and Rheological Behavior of Multifunctional Epoxy Resin System

Autor:	Hu Qingping, Sun Jin-liang, Ren Mu-su, Wang Chuanbin, Bai Rui-cheng, Zhou Ze, Zhou Zhengwei
Rok vydání:	2011
Předmět:	Materials science Order of reaction Polymers and Plastics Rheometer Activation energy Epoxy Isothermal process Differential scanning calorimetry Rheology visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Composite material Curing (chemistry)
Zdroj:	Polymers and Polymer Composites. 19:345-350
ISSN:	1478-2391 0967-3911
Popis:	The curing reactivity and viscosity of AG-70 epoxy resin system with MNA as the curing agent and 2,4-EMI as the accelerator promoter were measured by using non-isothermal differential scanning calorimetry (DSC) and RS600 Rotational Rheometer, respectively. According to the DSC curves at different heating rates, the curing parameters such as the gelation temperature, the peak temperature and the treat temperature were obtained by using T-β curve extrapolation, the kinetic parameters of the curing reaction were determined by using Kissinger, Ozawa and Crane equation, including the apparent activation energy, the pre-exponential frequency and the curing reaction order. Then the kinetic model based on an nth order reaction equation was set up. The experimental data of the viscosity behavior were analyzed, and modified dual-Arrhenius viscosity model was established to predict the isothermal rheological behavior. The relationship between gel-time and temperature was also analyzed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::726cb1e85159a970407e02b0c037dc4f https://doi.org/10.1177/0967391111019004-514 Zobrazit plný text záznamu