Coated articles with an anti-fingerprint coating or surface-modifying layer and methods of making the same

A coated article comprising:

• a substrate comprising a first major surface;
• a partial silica-like network disposed on the first major surface, the partial silica network having:
• a molar ratio of hydrogen to silicon from about 0.2 to about 0.45 as determined by secondary-ion mass spectroscopy (SIMS);
• and
• a hydroxyl ratio from about 0.005 to about 0.07 as determined using IR spectroscopy;
• wherein the partial silica-like network is part of surface-modifying layer comprising an exterior surface of the coated article, the surface-modifying layer comprising a thickness from about 10 nanometers to about 600 nanometers, and the surface-modifying layer further comprises an alkyl silane at the exterior surface, and wherein the surface-modifying layer exhibits a water contact angle of about 100° or more.

A coated article comprising:

• a substrate comprising a first major surface;
• a partial silica-like network disposed on the first major surface, the partial silica network having:
• a molar ratio of hydrogen to silicon from about 0.2 to about 0.45 as determined by secondary-ion mass spectroscopy (SIMS);
• a hydroxyl ratio from about 0.005 to about 0.07 as determined using IR spectroscopy;
• and
• wherein:
• the partial silica-like network is part of a surface-modifying layer comprising an exterior surface of the coated article, the surface-modifying layer comprising a thickness from about 10 nanometers to about 600 nanometers, the surface-modifying layer is fluorine-free, and the surface-modifying layer further comprises an alkyl silane at the exterior surface;
• the surface-modifying layer exhibits an abraded water contact angle of about 90° after being abraded for 2,000 cycles in a Steel Wool Abrasion Test;
• the surface-modifying layer comprises silicon atoms, oxygen atoms, carbon atoms, and hydrogen atoms;
• and
• the exterior surface exhibits a coefficient of friction of 0.25 or less.

A method of forming a coated article comprising:

• disposing a solution over a first major surface of a substrate, the solution comprising a polysilazane or a polyhedral oligomeric silsesquioxane;
• heating the solution at a temperature from about 150° C. to about 400° C. for a period of time from about 5 minutes to about 120 minutes;
• and
• reacting material at the first major surface of the substrate with an alkyl silane to form an surface-modifying layer, the alkyl silane comprising 4 or more carbons.