Provided are a nanocomposite body, a method of manufacturing the nanocomposite body, and a nanocomposite film including the nanocomposite body. The nanocomposite body includes: inorganic particles; a polymer matrix; and grafting polymer chains each of which includes a polyol structure, wherein the inorganic particles and the polymer matrix are linked by the grafting polymer chains.

There are provided a surface-modified nanodiamond exhibiting easy dispersibility in an organic solvent, an organic solvent dispersion thereof, and a method for producing the surface-modified nanodiamond. The surface-modified nanodiamond according to the present invention includes a nanodiamond, and a group bound to a particulate surface of the nanodiamond and represented by formula (1):
NHCOR (1) R is an organic group having a carbon atom at a binding site with a neighboring carbonyl carbon atom indicated in the formula; and the left end, in the formula, of the group serves to form bonding to the nanodiamond. The nanodiamond is preferably a detonation nanodiamond or a high-temperature high-pressure nanodiamond.

The modified graphene includes a structure represented by the following formula (I), wherein the modified graphene has a ratio (g/d) of an intensity g of a G band to an intensity d of a D band of 1.0 or more in a Raman spectroscopy spectrum thereof:

Gr1-Ar1-X1-(Y1).sub.n1(I)

in the formula (I), Gr1 represents a single-layer graphene or a multilayer graphene, Ar1 represents an arylene group having 6 to 18 carbon atoms, X1 represents a single bond, a linear, branched, or cyclic alkylene group having 1 to 20 carbon atoms, or a group obtained by substituting at least one carbon atom in a linear, branched, or cyclic alkylene group having 1 to 20 carbon atoms with at least one structure selected from the group consisting of O, NH,

##STR00001##

CO, COO, CONH, and an arylene group.

The modified graphene includes a structure represented by the following formula (I), wherein the modified graphene has a ratio (g/d) of an intensity g of a G band to an intensity d of a D band of 1.0 or more in a Raman spectroscopy spectrum thereof:

Gr1-Ar1-X1-(Y1).sub.n1(I)

in the formula (I), Gr1 represents a single-layer graphene or a multilayer graphene, Ar1 represents an arylene group having 6 to 18 carbon atoms, X1 represents a single bond, a linear, branched, or cyclic alkylene group having 1 to 20 carbon atoms, or a group obtained by substituting at least one carbon atom in a linear, branched, or cyclic alkylene group having 1 to 20 carbon atoms with at least one structure selected from the group consisting of O, NH,

##STR00001##

CO, COO, CONH, and an arylene group.

The invention relates to an anticorrosive grafted graphene filler for an organic coating, consisting of the following materials by weight: 0.1-0.2 parts of triterpenoid saponin, 2-3 parts of phytic acid hexaphosphate, 0.6-1 part of anticorrosive additive, 2-4 parts of dodecafluoroheptylpropyltrimethoxysilane, 10-15 parts of precursor, 110-120 parts of graphene oxide, 1-2 parts of 3-aminopropyltriethoxysilane. The composite of the present invention exhibits better performance, can be applied to an organic coating material and has good corrosion resistance to the metal substrate. The composite material of the invention has good stability and superior comprehensive performance.

The invention relates to an anticorrosive grafted graphene filler for an organic coating, consisting of the following materials by weight: 0.1-0.2 parts of triterpenoid saponin, 2-3 parts of phytic acid hexaphosphate, 0.6-1 part of anticorrosive additive, 2-4 parts of dodecafluoroheptylpropyltrimethoxysilane, 10-15 parts of precursor, 110-120 parts of graphene oxide, 1-2 parts of 3-aminopropyltriethoxysilane. The composite of the present invention exhibits better performance, can be applied to an organic coating material and has good corrosion resistance to the metal substrate. The composite material of the invention has good stability and superior comprehensive performance.

The present invention is to provide a surface-modified nanodiamond having excellent affinity for an organic solvent and a resin and having high dispersibility in an organic solvent and in a resin. The surface-modified nanodiamond according to an embodiment of the present invention has a structure in which a surface of a nanodiamond particle is modified by a group represented by Formula (1) below. In Formula (1), R.sup.1 represents an aliphatic hydrocarbon group having 6 or more carbons. R.sup.2 and R.sup.3 may be the same or different and are each a hydrogen atom, an aliphatic hydrocarbon group having from 1 to 3 carbons, or a group represented by Formula (2) below.

##STR00001##

There are provided a surface-modified nanodiamond exhibiting easy dispersibility in an organic solvent, an organic solvent dispersion thereof, and a method for producing the surface-modified nanodiamond. The surface-modified nanodiamond according to the present invention includes a nanodiamond, and a group bound to a particulate surface of the nanodiamond and represented by formula (1):

NHCOR (1)

R is an organic group having a carbon atom at a binding site with a neighboring carbonyl carbon atom indicated in the formula; and the left end, in the formula, of the group serves to form bonding to the nanodiamond. The nanodiamond is preferably a detonation nanodiamond or a high-temperature high-pressure nanodiamond.

In one embodiment, a composition of matter includes a crystalline porous structure having a density in a range from about 30 to about 50 mg/cm.sup.3. In another embodiment, a kit includes an amorphous, porous material, an inert pressure medium, a heating source, and a sample chamber configured to withstand an applied pressure of at least about 20 GPa. Other aspects and embodiments of the present invention will become apparent from the following detailed description, which, when taken in conjunction with the drawings, illustrate by way of example the principles of the invention.

In one embodiment, a composition of matter includes a crystalline porous structure having a density in a range from about 30 to about 50 mg/cm.sup.3. In another embodiment, a kit includes an amorphous, porous material, an inert pressure medium, a heating source, and a sample chamber configured to withstand an applied pressure of at least about 20 GPa. Other aspects and embodiments of the present invention will become apparent from the following detailed description, which, when taken in conjunction with the drawings, illustrate by way of example the principles of the invention.