Based on a brief introduction to the gas permeability mechanism of modified atmosphere packaging membrane and the fundamental properties of modified poly(ether ether ketone)(PEEK),this paper provided a detailed review for the physical and chemical modification strategies and their mechanisms that can be used to improve the thermodynamic stability,gas permeability and antibacterial performance of PEEK-based modified atmosphere packaging membrane.The future research direction of modified PEEK in the field of modified atmosphere packaging membrane was prospected,and the possible problems and challenges were proposed.
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