| abstract |
The invention belongs to the field of polymer composite materials, and discloses a marine environment-resistant electromagnetic shielding composite film and a preparation method thereof, comprising the following steps: (1) using electron beam irradiation technology to irradiate a polyether ether ketone film; (2) ) after immersing the irradiated polyether ether ketone film in Tris-HCl buffer for ultrasonic dispersion, then adding dopamine hydrochloride to continue ultrasonic dispersion; then, soaking at 50-70° C. for 8-16 hours to obtain modified polyether ether ketone film; (3) Finally, using ultrasonic spraying process, the electromagnetic shielding slurry is sprayed on the surface of the modified polyether ether ketone film, and after drying, the electromagnetic shielding composite film resistant to marine environment is obtained. The marine environment-resistant electromagnetic shielding composite film prepared by the invention has excellent electromagnetic shielding performance, and the electromagnetic shielding efficiency retention rate is greater than 95% after 1000 hours in a simulated marine environment. service life in the environment. |