Nano Graphene Platelets – Properties of NGPs

By AZoNano

Table of Contents

Nano Graphene Platelets
Characteristics and Advantages of NGPs
NGPs vs. Carbon Nanotubes
Angstron Materials Product Line
About Angstron Materials

Nano Graphene Platelets

Nano Graphene Platelets (NGP) are also known as Graphene Nano Platelets (GNP). They are similar to carbon nanotubes but have exceptional characteristics compared to other nanomaterials. They are suitable for industries such as:

  • Automotive
  • Aerospace
  • Energy
  • Electronics
  • Marine
  • Construction
  • Medical and
  • Telecommunications

Characteristics and Advantages of NGPs

Angstron Materials' NGPs offer several performance characteristics such as:

Conductivity
  • NGPs have a very high thermal conductivity of up to 5,300 W/(mK), which is five times that of the thermal conductivity of copper, while their density is four times lower than that of copper
  • Excellent in-plane electrical conductivity of up to 20,000 S/cm
Strength
  • NGPs are about 50 times stronger compared to steel
  • They have a very high Young’s modulus of about 1,000 GPa and extremely high intrinsic strength of approximately 130 GPa
Surface Area
  • NGPs have a specific surface area of up to 2,675 m2/g, which is twice the surface area of CNTs
Density
  • NGPs have a low density of about 2.25 g/cm3
Dimensions
  • NGPs are available in a broad range of platelet lengths of 1 to 20 µm and thicknesses range of approximately 0.34 to 100 nm
  • Single layer graphene is very thin with a thickness of just 0.34 nm

The figure below provides a graphical representation of the cost/perfromance benefits of NGPs of other competing material types.

Figure 1. Cost/performance comparison of some engineering materials including nano graphene platelets.

Angstron Materials' nano graphene solutions take care of problems related to viscosity and dispersion associated with processing of advanced materials that make use of carbon fibers and nanotubes.

NGPs vs. Carbon Nanotubes

The differences between NGPs and carbon nanotubes are provided below:

Properties Nano Graphene Platelets (NGPs) Carbon Nanotubes
Single Wall Multi Wall
Low Density XXX XXX XXX
Low Percolation Threshold XXX XXX XX
Defect-Free Surface XXX XXX XX
High Tensile Strength XXX XXX XX
Electrical Conductivity XXX XXX XX
High Purity XXX XX XX
Easily Functionalized XXX XX XX
High Surface Area XXX XX X
High Thermal Conductivity XXX XX X
Minimal Viscosity Impact XXX X X
Uniform Dispersion XXX X X
Price < $100/kg XXX   XX
High Loading > 10% XXX    
Excellent Barrier Properties XXX    
Minimal Capital Investment XXX    

Figure 2. Micrographs of NGPs (left) and carbon nanotubes (right).

Angstron Materials Product Line

The different types of NGPs offered by Angstron are tabulated below:

Product/Number Average X-Y Dimensions (µm) Average Thickness (nm) Oxygen (%) Surface Area (m2/gm) Form
N002-PS <1 1.0-1.2 ≤46 N/A Liquid
N002-PDR ≤23 <1 ≤2.1 400-800 Powder
N006-P ≤14 10-20 ≤1.5 ≤21 Powder
N008-P-(40) ≤44 50-100 ≤1.4 ≤15 Powder
N008-P-(10) ≤10 50-100 ≤1.4 ≤15 Powder
N008-N ≤5 50-100 ≤.80 ≤13 Powder

About Angstron Materials

Angstron Materials Inc., the world’s largest producer of nano graphene platelets (NGPs) specializes in helping companies engineer graphene solutions with mechanical, electrical and conductive performance advantages. They have the expertise to partner with customers throughout the commercialization process from initial screening to market launch.

This information has been sourced, reviewed and adapted from materials provided by Angstron Materials

For more information on this source, please visit Angstron Materials

Date Added: Sep 19, 2011 | Updated: Jun 11, 2013
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