▎ 摘 要
NOVELTY - Medical flexible electromagnetic shielding film comprises copolyester substrate and electromagnetic shielding material uniformly dispersed in copolyester substrate, where the melting point of copolyester substrate is 200-230 degrees C, the intrinsic viscosity is 0.70-0.90 dl/g, the copolyester substrate is obtained by polymerizing co-monomer, and the co-monomer comprises 65-89 pts. wt. bis(2-hydroxyethyl) terephthalate monomer, 5-10 pts. wt. 2,2-dimethyl-1,3-propanediol, 1-10 pts. wt. 1,4-cyclohexanedimethanol and 5-15 pts. wt. 1,4-butanediol. USE - Medical flexible electromagnetic shielding film useful in medical darkrooms and/or cables (claimed). ADVANTAGE - The flexible electromagnetic shielding film is conveniently compounded on outside of medical darkrooms or cables, and solves the problem of seam pores of electromagnetic shielding plates. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the medical flexible electromagnetic shielding film, involving sequentially performing esterification reaction and polycondensation reaction on co-monomer to obtain copolyester substrate, performing organic process on electromagnetic shielding material, melting and plasticizing copolyester substrate and organic-treated electromagnetic shielding material, performing extrusion molding to obtain cast sheet, stretching cast sheet, and shaping to form flexible electromagnetic shielding film.