Graphene NMP Dispersion, Purity: 99.5%, Graphene: 2,0 wt%

Technical Specification:

1. Material Composition:
   • Graphene Content: 2.0 wt%.
     • Contains 2% graphene by weight in the dispersion.
   • Purity: 99.5% graphene.
     • High-purity graphene ensures minimal impurities, enhancing electrical and mechanical properties.
   • Dispersion Medium: N-Methyl-2-pyrrolidone (NMP).
     • A high-boiling-point solvent that ensures excellent graphene dispersion and compatibility with advanced manufacturing processes.
2. Physical Properties:
   • Appearance: Black liquid.
   • Graphene Flake Size: Typically <1 µm, consisting of single-layer or few-layer graphene sheets.
   • Viscosity: Higher viscosity compared to lower concentration dispersions, suitable for various coating and film-forming methods.
   • Density: Approximately 1.03 g/cm³, typical for NMP-based dispersions.
3. Electrical and Thermal Properties:
   • Electrical Conductivity:
     • High, owing to the increased graphene content.
   • Thermal Conductivity:
     • Excellent, suitable for applications requiring efficient heat dissipation.
4. Chemical Stability:
   • Dispersion Stability:
     • Uniformly dispersed graphene with minimal sedimentation under proper storage conditions.
5. Packaging:
   • Supplied in sealed, solvent-resistant containers, with sizes ranging from 100 mL to 5 liters.

Applications:

1. Primary Applications:
   • Energy Storage:
     • Improves performance of electrodes in lithium-ion batteries, supercapacitors, and fuel cells.
   • Conductive Coatings:
     • Creates highly uniform conductive films on various substrates.
   • Advanced Composites:
     • Enhances the mechanical, electrical, and thermal properties of polymers and resins.
2. Industries:
   • Electronics:
     • Applied in flexible circuits, transparent conductive films, and sensors.
   • Automotive:
     • Enhances lightweight conductive parts and advanced battery systems.
   • Energy:
     • Improves the performance of renewable energy storage systems and high-capacity batteries.
   • Aerospace:
     • Reinforces lightweight materials for structural and electronic components.
3. Advantages for Applications:
   • High Graphene Content:
     • 2 wt% dispersion provides enhanced conductivity and material reinforcement compared to lower concentrations.
   • NMP Solvent Compatibility:
     • Ensures good adhesion and uniform film formation in coatings and advanced manufacturing processes.
   • Processing Flexibility:
     • Suitable for spray, dip, spin-coating, and printing applications.
   • Stable and Uniform:
     • Maintains consistent graphene distribution for reliable results.
4. Specialized Uses:
   • Battery and Supercapacitor Development:
     • Enhances charge transfer and energy density in advanced energy storage devices.
   • Electromagnetic Shielding:
     • Provides effective EMI shielding for electronics and enclosures.
   • 3D Printing:
     • Serves as a conductive ink for additive manufacturing of advanced devices.
   • Nanotechnology:
     • Facilitates the fabrication of graphene-based nanostructures for specialized applications.
5. Challenges and Mitigation:
   • Handling of NMP:
     • NMP is a hazardous solvent that requires proper ventilation and protective measures.
       • Solution: Use appropriate PPE and handle in a well-ventilated area.
   • Sedimentation:
     • Graphene may settle during storage.
       • Solution: Shake or ultrasonicate thoroughly before use.
   • Drying and Application:
     • NMP’s slow evaporation rate can extend drying times.
       • Solution: Optimize application conditions with controlled environments or heat-assisted drying.

Storage Guidelines:

• Temperature: Store at room temperature in a cool, dry place, away from heat sources and open flames as NMP is flammable.
• Container: Use tightly sealed, solvent-resistant containers to prevent evaporation and contamination.
• Agitation: Shake or stir thoroughly before use to ensure uniform dispersion.

Summary:

The Graphene NMP Dispersion with 99.5% purity and 2.0 wt% graphene content is a high-performance material ideal for energy storage, conductive coatings, and composite development. Its compatibility with NMP ensures excellent film-forming properties and stability, making it suitable for applications in electronics, automotive, aerospace, and renewable energy industries. Proper handling and storage ensure consistent quality and optimal performance.