WHAT IS Single-layer Graphene Oxide Powder?
The graphene oxide powder is formed from the formation of monolayer graphene oxide. The existence of the pleat structure makes the graphene oxide powders many mi crop ores and mesopores between the sheets, reduces the stacking between the graphene sheets and finally improves the dispersibility and wetting quality. Traditional multi-layer graphene powder is prepared by liquid exfoliation of graphite, oxiding pyrolytic graphite or conversed by biomass. Properties, such as the density, specific surface area, oxygen content and defect degree, of the graphene oxide-based graphene powder can be regulated by controlling the preparation process to meet the application requirements of different fields.
WHAT IS Ultra-high thermal conductive yet super-flexible graphene films
Graphene, the most studied two-dimensional (2D) carbon allotrope, consists of only one plain layer of conjugated atoms arra11ged in a honeycomb lattice The low atomic mass, strong bonding, simple crystal structure and low anharmonicity of graphene endow it a distinguished K, ≈ 5300 W m-1 K-1. Meanwhile, the single-layer structure renders graphene possible flexibility. These unique properties make graphene promising as a kind of alternative building block for fabricating ultra-high thermal conductive yet super-flexible macroscopic material. The defects-free and giant graphene units (100-200 µm) endow the graphene film a higher thermal conductivity than that of conventional polyimide carbonized films. In addition, large micro-folds in it make the film super flexible.
Reduced of graphene oxide powder Properties
• It has the characteristics of loose structure, porous and curved, large specific surface area and good electrical conductivity;
• In addition to its excellent properties such as heat and cold resistance, corrosion resistance and self-lubrication, it also has the characteristics of softness, compression resilience, adsorption, ecological environment coordination, biocompatibility, and radiation resistance that natural graphite does not have.
Applications of Graphene oxide powder
Graphene oxide powder can be compounded with most polymer materials with good dispersion to improve the performance of strength, modulus, UV resistance, corrosion resistance, wear resistance, far infrared emission performance. It can be used in the super capacitor, battery, catalyst carrier and many other fields due to the abundant wrinkles and porous structure. It can be used as lubricating oil additives to improve the durability of lubricants because its better dispersion compared to multi-layer graphene/graphite. It can be used to prepare graphene-based paint, air purification filter, oil-absorbing materials
Applications of Reduced of graphene oxide powder
Because of its softness, impermeability, adsorption and low density, it has a wide range of applications in the fields of environmental protection, sealing materials, biomedicine, high-energy battery materials, phase-change heat storage materials, and fire safety materials.
In high-tech fields such as high speed, corrosion resistance, wear resistance and energy saving, some metal materials and organic synthetic materials are gradually replaced.
Graphene can achieve effective electromagnetic shielding at lower mass and lower thickness.
With the dispersibility and flexibility of graphene, graphene can be used in thousands of coatings, films, fibers and composite materials, such as electromagnetic shielding paint, electromagnetic shielding baffles, radiation protection maternity clothing, satellites, radar, aerospace vehicles, precision instruments Wait.
In coating application, the use of graphene's physical barrier and high stability properties can improve the coating's anti-corrosion, anti-fouling, and burn-off effects.
Storage
Should be sealed in a cool and dry place.
Single-layer Graphene Oxide Powder
| Product | Lateral Size | Single Layer Rate | Degree of Oxygen-containing | Density(g/cm3) | Diameter µm | Specific surface area(m2/g) |
| GK-1 | 3~5 | ≥99% | 30%~40% | 0.01~1 | 1~10 | 100~300 |
| GK-2 | 20~30 | |||||
| GK-3 | ~50 |
Reduced of graphene oxide powder
High temperature reduction of graphene oxide powder | High temperature reduction at 400℃ |
High temperature reduction at 1300℃ | |
High temperature reduction at 2800℃ |
Model | specifications | Notes | |||
Appearance |
| Carbon/oxygen |
| Specifications can be adjusted according to requirements | |
HtRGP-400 | Black powder | 100-700 | 4.0±0.5 | 0.1-1 | |
HtRGP-1300 | Black powder | 100-700 | 20.0±0.5 | 0.005-0.020 | |
HtRGP-2800 | Black powder | 50-500 | 50.0±1 | 0.002-0.010 | |
Ultra-high thermal conductive yet super-flexible graphene films
| Product | Strength (MPa) | Break Elongation | Electrical conductivity (Siem) | Thermal conductivity (W/mK) |
| GK | 20~80 | 8~16 | 3000~10000 | 1200~2000 |