Diffusion and reaction model in deoxidizing resin layers of oxygen absorbing multi-layer films
A variety of deoxidizing resin films were prepared, which were key layers of the oxygen absorbing multi-layer films.The effects of iron content, iron particle size, metal halide content, coupling agent, inorganic filler, and moisture regulating time on oxygen-absorbing rate were investigated.A model of oxygen-absorbing rate in deoxidizing resin films was developed based on the quasi-steady state assumption. According to the model, if M 3, the process was a rapid reaction,and the film thickness had no effect on oxygen-absorbing rate.But when M 0.3,the process was a slow reaction, the diffusion coefficient D _e showed no effect on oxygen-absorbing rate, and the oxygen concentration in the film was uniform and equal to that at gas-solid interface.The experimental results of oxygen-absorbing rate in deoxidizing resin films agreed well with the model proposed.