Interfacial reaction kinetics of carbon fiber composite

Abstract:

In order to study the interfacial reaction of carbon fiber surface coating in the process of preparing composite materials, an experimental method based on dynamics was adopted. Different DSC curve will be obtained from the reaction enthalpy measurement of resin and curing agent, resin and sizing agent, sizing agent and curing agent and so on with different heating rate. The pre-exponential factor A, reaction order n and apparent activation energy E and dynamics equations were calculated by the Kissinger, Flynn-Wall-Ozawa and Crane methods. The activation energy of the sizing agent and curing agent is 47.25 kJ／mol, while the activation energy of the resin and curing agent system is 49.64 kJ／mol. It can be concluded that the carbon fiber surface coating reacts with curing agent first than the resin.