Description of phenomenological process during thermal formation of an epoxy system in presence of metal nanoparticles using advanced kinetics analysis

作者：Zabihi Omid^*; Aghaie Mehran; Aghaie Hossein; Zare Karim; Saghapour Yadollah

来源：Journal of Thermal Analysis and Calorimetry, 2014, 117(1): 53-61.

DOI：10.1007/s10973-014-3658-x

• Curing reaction
• Kinetic parameters
• Diffusion control
• Metal nanoparticles
• Epoxy resin

The curing process of diglycidyl ether of bisphenol A (DGEBA)-isophoronediamine (IPDA) system filled with different contents of Fe nanoparticles (nano-Fe) has been investigated by differential scanning calorimetry and Fourier transform infrared spectroscopy analysis in order to understand the effect of nano-Fe. These studies revealed that high percentage of the nanofiller, i.e. 10 %, results in improved epoxy matrix as evidenced by increasing in the reaction heat and conversion degree. Kinetics of DGEBA/IPDA/10 % nano-Fe cure was studied by calorimetry measurements at isothermal mode. Isothermal kinetic parameters, including k (1), k (2), m, and n were determined and it was shown that the reaction kinetics could be expressed well by d alpha/dt = (k (1) + k (2) alpha (m))(1-alpha)(n) which called Kamal model. The results also showed that the diffusion control does not occur. The excellent fitting Kamal model with experimental data at the end of the isothermal cure process could be mentioned as evidences here. The dispersion of 10 % nano-Fe into epoxy matrix was analyzed by atomic force microscopy observations.

• 出版日期2014-7