Scratch-resistant and durable electrophotographic photoreceptor

A scratch-resistant and durable electrophotographic photoreceptor,

• comprising:
• a conductive substrate;
• an undercoat layer disposed on the conductive substrate and capable of conforming to the contour of the conductive substrate;
• a photoconductor charge generation layer disposed on the undercoat layer and capable of conforming to the contour of the undercoat layer;
• a charge transport layer disposed on the photoconductor charge generation layer, wherein the charge transport layer comprises a charge transport material, a binder resin;
• and
• an overcoat layer disposed on the charge transport layer, wherein the overcoat layer comprises a fluorine-containing resin and a plurality of polyhedral oligomeric silsesquioxane (POSS) particles evenly dispersed in the fluorine-containing resin;
• wherein the scratch-resistant and durable electrophotographic photoreceptor has a durability of below 1.0 um/10000 page printing, as determined by standard page printing test according to ISO/IEC 19752;
• wherein the POSS particles have a structure represented by Formula (1-1) or Formula (1-2):
• RaR1SiO3/2 Formula (1-1)
• RaR1R2SiO3/2 Formula (1-2);
• wherein Ra represents at least one fluorine group selected from the group consisting of 12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,19-heptadecafluorononadecyl, 12,12, 13, 13, 14, 14, 15, 15, 15-nonafluoropentadecyl, 12,12,13,13,14,14,15,15,16,16,17,17,17-tridecafluoroheptadecyl, 12,12,13,13,14, 14, 15,15, 15-nonafluoropentadecyl, 12,12,13,13,14,14,15,15,16,16,17,17,18,18,19,19,19-heptadecafluorononadecyl, 12,12,13,13,14,14,15,15,16,16,17,17,17-tridecafluoroheptadecyl, 3,3,3-trifluoropropyl, heptadecafluorodecyl, tridecafluorooctyl, 3,3,3-trifluoropropyl, 1H, 1H,2H,2H-perfluorodecyl, heptadecafluorooctyl, heptadecafluoro-1,1,2,2-tetradecyl, and tridecafluoro-1,1,2,2-tetrahydrooctyl;
• wherein R1 represents a first non-fluoridated group, and R2 represents a second non-fluoridated group;
• wherein the second non-fluoridated group has a long chain of CH2 of more than 1CH2;
• wherein the first non-fluoridated group is selected from the group consisting of propyl methacrylate, propylaniline, phenyl, 2-phenylethyl, 1-phenylethenyl, methylphenyl group, and diphenyl group;
• and
• wherein the second non-fluoridated group is selected from the group consisting of octadecyl, dodecyl, and polyethylene glycol (PEG).