With the wide spread of electronic information and the emergence of urban maglev high-speed train, the requirements of various electronic communication equipment electromagnetic shielding and human body electromagnetic radiation protection are increasingly high, and closed-cell foamed aluminum material has a good shielding effect on electromagnetic wave, is a sound-absorbing electromagnetic shielding material.Its shielding performance is much better than that of conductive coatings and magnetic materials.Therefore, Closed-cell foamed aluminum has a broad application prospect in the anti-interference of electronic equipment and the anti-leak of computer information.
