Method for affixing water-and-oil-repellent layer to amorphous carbon film layer, and laminated body formed by said method
One object is to provide a method for providing a water- and oil-repellent layer on an amorphous carbon film with excellent fixity. A method according to an embodiment of the present disclosure includes the steps of: preparing a substrate; providing, directly or indirectly on the substrate, an amorphous carbon film layer containing silicon and nitrogen in at least a surface thereof; and providing a water- and oil-repellent layer containing fluorine on the amorphous carbon film layer via a coupling agent capable of forming, with the amorphous carbon film layer, hydrogen bonds based on polarity and/or —O-M bonds (M is any one element selected from the group consisting of Si, Ti, Al, and Zr) by condensation reaction with functional groups of the amorphous carbon film.
1. A method comprising the steps of:
preparing a substrate;
providing, directly or indirectly on the substrate, an amorphous carbon film layer containing silicon and nitrogen in at least a surface thereof; and
providing a water- and oil-repellent layer on the amorphous carbon film layer via a coupling agent capable of forming, with the amorphous carbon film layer, hydrogen bonds based on polarity and/or —O-M bonds (M is any one element selected from a group consisting of Si, Ti, Al, and Zr) by condensation reaction with functional groups of the amorphous carbon film layer.
2. The method of claim 1 wherein the coupling agent is a silane coupling agent.
3. The method of claim 1 further comprising the step of performing a plasma process with nitrogen on the amorphous carbon film layer.
4. The method of claim 1 wherein the amorphous carbon film layer comprises two or more layers, of which a topmost layer contains silicon and nitrogen in at least a surface thereof.
5. A method comprising the steps of:
preparing a substrate;
providing, directly or indirectly on the substrate, an amorphous carbon film layer containing silicon and nitrogen in at least a surface thereof; and
providing, on the amorphous carbon film layer, a water- and oil-repellent layer comprising a fluorine-based coupling agent capable of forming, with the amorphous carbon film layer, hydrogen bonds based on polarity and/or —OM bonds (M is any one element selected from a group consisting of Si, Ti, Al, and Zr) by condensation reaction with functional groups of the amorphous carbon film layer.
6. The method of claim 5 wherein the fluorine-based coupling agent is a fluorine-containing silane coupling agent.
7. The method of claim 5 further comprising the step of performing a plasma process with nitrogen on the amorphous carbon film layer.
8. A laminated body comprising:
a substrate;
an amorphous carbon film layer containing silicon and nitrogen and provided directly or indirectly on at least one surface of the substrate; and
a water- and oil-repellent layer provided on the amorphous carbon film layer via a coupling agent capable of forming, with the amorphous carbon film layer, hydrogen bonds based on polarity and/or —O-M bonds (M is any one element selected from a group consisting of Si, Ti, Al, and Zr) by condensation reaction with functional groups of the amorphous carbon film layer.
9. The laminated body of claim 8 wherein the coupling agent is a silane coupling agent.