Graphene NMP Dispersion, Purity: 99.5%, Graphene: 1,0 wt%

Technical Specification:

1. Material Composition:
   • Graphene Content: 1.0 wt%.
     • Contains 1.0% graphene by weight in the NMP dispersion.
   • Purity: 99.5% graphene.
     • High-purity graphene ensures minimal impurities, enhancing electrical and mechanical properties.
   • Dispersion Medium: N-Methyl-2-pyrrolidone (NMP).
     • High-boiling-point solvent with excellent dispersion properties for uniform graphene distribution.
2. Physical Properties:
   • Appearance: Black liquid.
   • Graphene Flake Size: Typically <1 µm, consisting of single-layer or few-layer graphene sheets.
   • Viscosity: Medium to high, depending on formulation, suitable for coating and film formation.
   • Density: Approximately 1.03 g/cm³, typical for NMP-based solutions.
3. Electrical and Thermal Properties:
   • Electrical Conductivity:
     • High, attributed to graphene’s exceptional conductivity.
   • Thermal Conductivity:
     • Excellent, suitable for heat management in advanced devices.
4. Chemical Stability:
   • Stable Dispersion:
     • Uniform suspension with minimal sedimentation under standard conditions.
5. Packaging:
   • Delivered in sealed, solvent-resistant containers of various sizes (e.g., 100 mL to 5 liters).

Applications:

1. Primary Applications:
   • Energy Storage:
     • Enhances the performance of electrodes in lithium-ion batteries, supercapacitors, and fuel cells.
   • Conductive Coatings:
     • Used for creating thin, uniform conductive films on various substrates.
   • Advanced Composites:
     • Integrates into polymers and resins to improve electrical, mechanical, and thermal properties.
2. Industries:
   • Electronics:
     • Development of flexible circuits, transparent conductive films, and sensors.
   • Automotive:
     • Applied in battery systems and lightweight conductive components.
   • Energy:
     • Enhances performance in renewable energy storage solutions and high-capacity batteries.
   • Aerospace:
     • Reinforces lightweight materials for advanced structural and electronic components.
3. Advantages for Applications:
   • High Graphene Content:
     • 1.0 wt% graphene allows for greater conductivity and mechanical reinforcement compared to lower concentrations.
   • NMP Solvent Compatibility:
     • Ensures good adhesion and uniform film formation in coatings and advanced manufacturing.
   • Stability:
     • Long-lasting dispersion minimizes agglomeration and ensures consistent performance.
   • Ease of Integration:
     • Suitable for spray, dip, and spin-coating applications.
4. Specialized Uses:
   • Battery and Supercapacitor Development:
     • Enhances charge transfer and energy density in advanced energy storage devices.
   • Electromagnetic Shielding:
     • Provides EMI shielding for electronic devices and enclosures.
   • 3D Printing:
     • Used as a conductive ink for additive manufacturing of advanced components.
   • Nanotechnology:
     • Supports the fabrication of graphene-based nanostructures for specialized applications.
5. Challenges and Mitigation:
   • NMP Handling:
     • NMP is a hazardous solvent requiring proper ventilation and handling precautions.
       • Solution: Use personal protective equipment (PPE) and work in a well-ventilated area.
   • Sedimentation:
     • Graphene may settle during storage.
       • Solution: Shake or ultrasonicate the dispersion 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, away from heat and open flames as NMP is flammable.
• Container: Use airtight, solvent-resistant containers to prevent evaporation and contamination.
• Agitation: Shake or stir thoroughly before use to maintain a uniform dispersion.

Summary:

The Graphene NMP Dispersion with 99.5% purity and 1.0 wt% graphene content is a high-performance material ideal for applications in energy storage, conductive coatings, and advanced composites. Its compatibility with NMP ensures excellent film-forming properties and dispersion stability, making it suitable for high-performance electronics, automotive, and renewable energy applications. Proper storage and handling ensure consistent quality and optimal performance.