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US 9,925,559 B2Granted
Graphene-containing coating film, and method for preparing the same
AssigneesHyundai Motor Company, Korea Institute of Ceramic Engineering and Technology
InventorsKyu Geol Lee, Kwang Il Chang, Seung Hun Hur
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Abstract
A graphene-containing coating film includes at least one hydrate represented by Chemical Formula 1 as described herein, a graphene positioned in a shape on the surface of the hydrate represented by Chemical Formula 1, and a silica particle positioned on the surface of the hydrate of Chemical Formula 1 and positioned on the surface of the graphene in a shape of discontinuous island. Particularly, the silica particle includes agglomeration of a plurality of silica nanoparticles. A method of preparing the graphene-containing coating film and a vehicle part such as a head lamp including the same are also provided.
Claims25
A graphene-containing coating film, comprising:
- at least one hydrate represented by Chemical Formula 1;
- a graphene positioned on the surface of the hydrate represented by Chemical Formula 1;
- and
- a silica particle positioned on the surface of the hydrate of Chemical Formula 1 and positioned on the surface of the graphene in a shape of discontinuous island,
- wherein the silica particle include agglomeration of a plurality of silica nanoparticles:
- Xn-M-(OH)4-n [Chemical Formula 1]
- wherein, in Chemical Formula 1,
- M is selected from the group consisting of Si, Ti, Ag, Sn, In, and Zn, and a combination thereof,
- X is:
- a) a C1 to C30 alkyl group substituted or unsubstituted with at least one functional group selected from the group consisting of an epoxy group, a glycidoxy group, a vinyl group, an acryl group, a methacryl group, a carboxyl group, an amino group, a thiol group, a phosphoric acid group, a fluoro group, a chloro group, a bromo group, an iodine group, a hydroxy group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C1 to C10 ketone group, a substituted or unsubstituted C1 to C10 amine group, a substituted or unsubstituted C1 to C10 sulfur group, a substituted or unsubstituted C1 to C10 ester group, and a substituted or unsubstituted C1 to C10 silyl group;
- b) a C1 to C30 alkenyl group substituted or unsubstituted with at least one functional group selected from the group consisting of an epoxy group, a glycidoxy group, a vinyl group, an acryl group, a methacryl group, a carboxyl group, an amino group, a thiol group, a phosphoric acid group, a fluoro group, a chloro group, a bromo group, an iodine group, a hydroxy group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C1 to C10 ketone group, a substituted or unsubstituted C1 to C10 amine group, a substituted or unsubstituted C1 to C10 sulfur group, a substituted or unsubstituted C1 to C10 ester group, and a substituted or unsubstituted C1 to C10 silyl group;
- or
- c) a C1 to C30 alkynyl group substituted or unsubstituted with at least one functional group selected from the group consisting of an epoxy group, a glycidoxy group, a vinyl group, an acryl group, a methacryl group, a carboxyl group, an amino group, a thiol group, a phosphoric acid group, a fluoro group, a chloro group, a bromo group, an iodine group, a hydroxy group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C1 to C10 ketone group, a substituted or unsubstituted C1 to C10 amine group, a substituted or unsubstituted C1 to C10 sulfur group, a substituted or unsubstituted C1 to C10 ester group, and a substituted or unsubstituted C1 to C10 silyl group, and
- n is an integer of 1 to 3.
11 more elements
A method of preparing a graphene-containing coating film comprising
- dispersing a graphene;
- mixing and dispersing a silica nanoparticle and the precursor of the hydrate represented by Chemical Formula 1 in a hydrophilic solvent and mixing the same with the dispersed graphene;
- performing hydrolysis and condensation reactions of the mixed dispersed solution to prepare a graphene-containing sol solution;
- coating the graphene-containing sol solution on a substrate and drying the same at a temperature of about 25° C. to 400° C.;
- and
- heat-treating the dried film at a temperature of about 50° C. to 900° C.,
- Xn-M-(OH)4-n [Chemical Formula 1]
- wherein, in Chemical Formula 1,
- M is selected from the group consisting of Si, Ti, Ag, Sn, In, and Zn, and a combination thereof,
- X is:
- a) a C1 to C30 alkyl group substituted or unsubstituted with at least one functional group selected from the group consisting of an epoxy group, a glycidoxy group, a vinyl group, an acryl group, a methacryl group, a carboxyl group, an amino group, a thiol group, a phosphoric acid group, a fluoro group, a chloro group, a bromo group, an iodine group, a hydroxy group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C1 to C10 ketone group, a substituted or unsubstituted C1 to C10 amine group, a substituted or unsubstituted C1 to C10 sulfur group, a substituted or unsubstituted C1 to C10 ester group, and a substituted or unsubstituted C1 to C10 silyl group;
- b) a C1 to C30 alkenyl group substituted or unsubstituted with at least one functional group selected from the group consisting of an epoxy group, a glycidoxy group, a vinyl group, an acryl group, a methacryl group, a carboxyl group, an amino group, a thiol group, a phosphoric acid group, a fluoro group, a chloro group, a bromo group, an iodine group, a hydroxy group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C1 to C10 ketone group, a substituted or unsubstituted C1 to C10 amine group, a substituted or unsubstituted C1 to C10 sulfur group, a substituted or unsubstituted C1 to C10 ester group, and a substituted or unsubstituted C1 to C10 silyl group;
- or
- c) a C1 to C30 alkynyl group substituted or unsubstituted with at least one functional group selected from the group consisting of an epoxy group, a glycidoxy group, a vinyl group, an acryl group, a methacryl group, a carboxyl group, an amino group, a thiol group, a phosphoric acid group, a fluoro group, a chloro group, a bromo group, an iodine group, a hydroxy group, a substituted or unsubstituted C1 to C10 alkoxy group, a substituted or unsubstituted C1 to C10 ketone group, a substituted or unsubstituted C1 to C10 amine group, a substituted or unsubstituted C1 to C10 sulfur group, a substituted or unsubstituted C1 to C10 ester group, and a substituted or unsubstituted C1 to C10 silyl group, and
- n is an interger of 1 to 3.
12 more elements
Dependencies are inferred from the claim text.