The invention discloses an anti-
radiation and shock-resistant
polycarbonate sheet for a protective window and a preparation method of the
polycarbonate sheet. The anti-
radiation and shock-resistant
polycarbonate sheet is prepared from raw materials in parts by weight as follows: 120-130 parts of polycarbonate, 10-12 parts of
graphene nanofibers, 3-5 parts of dialkyl cyclohexanedicarboxylate, 10-14 parts of cyclic butylene terephthalate, 8-10 parts of a
tetrafluoroethylene-
hexafluoropropylene copolymer, 5-7 parts of dihydroxyaluminium
stearate, 10-12 parts of an
acrylonitrile-
styrene-
acrylate copolymer, 6-8 parts of oxidized paraffin, 5-7 parts of triisononyl trimellitate, 6-8 parts of flocking
powder, 2-4 parts of dipentaerythritol hexacarboxylate and the like. Through blending of cyclic butylene terephthalate, the
tetrafluoroethylene-
hexafluoropropylene copolymer and the like with polycarbonate, the
toughness, the abrasion resistance, the
chemical stability, the
impact strength and the
radiation resistance of the sheet are improved, polycarbonate is modified with the raw materials including the flocking
powder, the
graphene nanofibers,
magnesium oxide whiskers and the like, so that the anti-radiation performance and the
shock resistance of the sheet can be improved, and the sheet has very high
shock resistance and anti-radiation performance.