Graphene Ethanol Dispersion, Purity: 99.5%, Graphene: 0.5 wt%

Technical Specification:

1. Material Composition:
   • Graphene Content: 0.5 wt%.
     • Contains 0.5% graphene by weight in the ethanol dispersion.
   • Purity: 99.5% graphene.
     • High-purity graphene ensures minimal impurities for enhanced performance.
   • Dispersion Medium: Ethanol.
     • Provides a low-viscosity, volatile, and environmentally friendly solvent.
2. Physical Properties:
   • Appearance: Black liquid.
   • Graphene Flake Size: Typically <1 µm, comprising single or few-layer graphene sheets.
   • Viscosity: Low viscosity due to the ethanol medium, suitable for spray and dip-coating applications.
   • Density: Approximately 0.79 g/cm³, typical for ethanol-based solutions.
3. Electrical and Thermal Properties:
   • Electrical Conductivity:
     • High, owing to the superior conductivity of graphene.
   • Thermal Conductivity:
     • Excellent, suitable for heat dissipation applications.
4. Chemical Stability:
   • Dispersion Stability:
     • Uniform suspension with minimal sedimentation under standard conditions.
5. Packaging:
   • Supplied in sealed, solvent-resistant containers of various sizes (e.g., 100 mL to 5 liters).

Applications:

1. Primary Applications:
   • Energy Storage Devices:
     • Enhances electrode performance in batteries, supercapacitors, and fuel cells.
   • Conductive Coatings:
     • Ideal for creating thin, uniform, conductive films on various substrates.
   • Composites:
     • Improves the electrical, mechanical, and thermal properties of polymers and resins.
2. Industries:
   • Electronics:
     • Used in flexible circuits, sensors, and transparent conductive films.
   • Automotive:
     • Enhances lightweight conductive components and battery systems.
   • Energy:
     • Improves performance in renewable energy storage systems.
   • Aerospace:
     • Reinforces lightweight materials for structural and electronic components.
3. Advantages for Applications:
   • Eco-Friendly Solvent:
     • Ethanol is less hazardous compared to other solvents, making it safer for handling and processing.
   • High Stability:
     • Maintains uniform dispersion for consistent results.
   • Ease of Application:
     • Low viscosity and volatility allow for quick drying and efficient processing.
   • Versatile Integration:
     • Suitable for spray, dip, and spin-coating methods.
4. Specialized Uses:
   • Advanced Coatings:
     • Used in EMI shielding, photovoltaics, and transparent conductive applications.
   • 3D Printing:
     • Serves as a conductive ink for advanced manufacturing technologies.
   • Biomedical Applications:
     • Ethanol dispersion facilitates biocompatible coatings and drug delivery studies.
   • Nanotechnology:
     • Enables precise fabrication of graphene-based nanostructures.
5. Challenges and Mitigation:
   • Ethanol Volatility:
     • Ethanol’s high volatility may lead to rapid drying during application.
       • Solution: Use controlled environments or rapid processing techniques.
   • Sedimentation:
     • Graphene may settle over time.
       • Solution: Shake or ultrasonicate before use.
   • Low Graphene Concentration:
     • 0.5 wt% may require multiple layers for desired conductivity.
       • Solution: Apply repeated coatings or optimize graphene loading in composites.

Storage Guidelines:

• Temperature: Store in a cool, dry place, away from heat and open flames as ethanol is flammable.
• Container: Use tightly sealed, solvent-resistant containers to prevent evaporation.
• Agitation: Shake well before use to ensure uniform dispersion.

Summary:

The Graphene Ethanol Dispersion with 99.5% purity and 0.5 wt% graphene content is a versatile and eco-friendly material for conductive coatings, energy storage, and composite enhancement. Its compatibility with ethanol as a solvent makes it suitable for various applications in electronics, automotive, and renewable energy sectors. Proper handling and storage ensure consistent performance and extended usability.