Graphene NMP 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 dispersion.
   • Purity: 99.5% graphene.
     • High-purity graphene ensures minimal impurities and optimal performance.
   • Dispersion Medium: N-Methyl-2-pyrrolidone (NMP).
     • A high-boiling-point solvent compatible with advanced coating and film applications.
2. Physical Properties:
   • Appearance: Black liquid.
   • Graphene Flake Size: Typically <1 µm, consisting of single or few-layer graphene sheets.
   • Viscosity: Medium to high, depending on graphene concentration and formulation.
   • Density: Similar to that of NMP, approximately 1.03 g/cm³.
3. Electrical and Thermal Properties:
   • Electrical Conductivity:
     • High, owing to graphene’s exceptional conductivity.
   • Thermal Conductivity:
     • Excellent, enabling heat dissipation in coatings and composites.
4. Chemical Stability:
   • Compatible with a range of substrates, including metals, polymers, and ceramics.
   • High stability in the dispersion prevents graphene agglomeration.
5. Packaging:
   • Delivered in sealed, solvent-resistant containers of varying sizes (e.g., 100 mL to 10 liters).

Applications:

1. Primary Applications:
   • Energy Storage Devices:
     • Used in lithium-ion batteries, supercapacitors, and fuel cells to enhance electrode performance.
   • Conductive Coatings:
     • Enables uniform, conductive films for flexible electronics and printed circuits.
   • Composites:
     • Integrates into polymer matrices to improve electrical and mechanical properties.
2. Industries:
   • Electronics:
     • Develops conductive films, sensors, and flexible circuits.
   • Automotive:
     • Used in battery systems and lightweight conductive components.
   • Energy:
     • Enhances efficiency and durability in energy storage systems like supercapacitors and lithium-ion batteries.
   • Aerospace:
     • Improves material properties for lightweight, conductive composites.
3. Advantages for Applications:
   • Enhanced Conductivity:
     • Improves electrical and thermal performance in various devices.
   • Solvent Compatibility:
     • NMP ensures good adhesion and uniform film formation in coating applications.
   • High Stability:
     • Prevents graphene aggregation, ensuring consistent performance.
   • Versatile Integration:
     • Suitable for spray, spin, or dip coating techniques.
4. Specialized Uses:
   • Advanced Coatings:
     • Used in transparent conductive films for touchscreens, photovoltaics, and sensors.
   • Nanotechnology:
     • Enables precision fabrication of graphene-based nanostructures.
   • 3D Printing:
     • Serves as a conductive ink for additive manufacturing.
   • Electromagnetic Shielding:
     • Provides EMI shielding for sensitive electronic devices.
5. Challenges and Mitigation:
   • Handling of NMP:
     • NMP is a hazardous solvent requiring careful handling and ventilation.
       • Solution: Use appropriate personal protective equipment (PPE) and handle in well-ventilated areas.
   • Sedimentation:
     • Graphene may settle over time.
       • Solution: Shake or ultrasonicate before use.
   • Low Concentration:
     • 0.5 wt% graphene may require multiple applications for desired properties.
       • Solution: Layer or optimize coating techniques to achieve the desired effect.

Storage Guidelines:

• Temperature: Store in a cool, dry place away from heat or flame, as NMP is flammable.
• Container: Use sealed, solvent-resistant containers to prevent evaporation and contamination.
• Agitation: Shake or mix thoroughly before use to ensure uniform dispersion.

Summary:

The Graphene NMP Dispersion with 99.5% purity and 0.5 wt% graphene is an advanced material ideal for applications in energy storage, conductive coatings, and composite development. Its compatibility with NMP ensures excellent film-forming properties, making it suitable for high-performance devices in electronics, automotive, and aerospace industries. Proper storage and handling are essential for maintaining its stability and usability.