Polymeric coatings for fortification of visible, infrared, and laser optical devices

摘要

A method for coating a surface of a material involves contacting a surface of a material with a surface activator containing a fluoride-containing compound and an organic solvent to form an activated surface, contacting the activated surface with a protective reagent to form an initial coated surface, and contacting the initial coated surface with a thinning agent containing a fluoride-containing compound and a surfactant to from a final coated surface, wherein the final coated surface is coated with a protective coating that is covalently bonded to the surface of the material.

主权项

1. A method for producing a covalently bound, monolayer protective coating on the surface of a material, the method comprising:
(i) activating the surface of the material by contacting the surface with a surface activator that increases the concentration of polar binding sites on the surface to form a polar surface, wherein the surface activator comprises an organic solvent and a first fluoride-containing compound selected from the group consisting of barium fluoride (BaF2), hydrogen fluoride (HF), ammonium fluoride (NH4F), sodium fluoride (NaF), sodium bifluoride (NaHF2), potassium fluoride (KF), potassium bifluoride (KHF2), ammonium difluoride (NH4HF2), any hydrate thereof, and any mixture thereof; (ii) coating the activated polar surface of (i) with a protective reagent that reacts with the activated surface of (i) to form a covalently bound protective coating; and (iii) thinning the covalently bound protective coating by contacting the covalently bound protective coating with a thinning agent that removes additional outer layers of coating and contaminants, wherein the thinning agent comprises a surfactant and a second fluoride-containing compound selected from the group consisting of barium fluoride (BaF2), hydrogen fluoride (HF), ammonium fluoride (NH4F), sodium fluoride (NaF), sodium bifluoride (NaHF2), potassium fluoride (KF), potassium bifluoride (KHF2), ammonium difluoride (NH4HF2), any hydrate thereof, and any mixture thereof;to form a covalently bound monolayer protective coating on the surface.