The process of chemical crosslinking of resin system and the formation of interstitial polymer by generating heat energy through microwave action is a kind of radiation curing. The mechanism of microwave assimilation reaction can be explained by two factors: "heating effect" and "non heating effect". The "heating effect" refers to the acceleration of the reaction by increasing the temperature of the reaction system; "Non thermal effect" is believed to come from the Lorentz force effect of microwave radiation field on ions and polar molecules. According to the traditional view, the accelerated reaction is mainly due to the "heating effect". Its mechanism is that the polarization vector generated by the polarization of the internal medium lags behind the electric field by an angle, generating a current in the same phase with the electric field, forming a power dissipation to form volume heating. This method has the advantages of uniform heat transfer, high heating efficiency, fast curing speed and easy control.
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