Table of Contents
IntroductionNGPs -
Properties and AdvantagesNGP Solutions for Automotive
ApplicationsAbout Angstron Materials
Introduction
Nano
Graphene Platelets (NGPs) are similar to carbon nanotubes but have excellent
performance characteristics compared to other nanomaterials. They are suitable
for applications in industries such as:
- Automotive
- Aerospace
- Energy
- Electronics
- Marine
- Construction
- Medical and
- Telecommunications
NGPs - Properties and Advantages
Some of the performance characteristics of Angstron Materials' NGPs are
outlined below:
| 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.
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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.
NGP Solutions for Automotive Applications
NGPs
from Angstron Materials are ideal for applications in automotive components such
as fuel systems and also applications that require electrostatic spray painting
(ESP). Angstron’s NGP-resin systems permit two-dimensional platelets to slide
over each other, and this helps in attaining low resistance to shear flow at
relatively high NGP proportion. This allows easy application of structural
adhesives and convenient melt processing of polymer nanocomposites having a high
NGP
loading.
NGPs
are electrically conductive additives, which improve electrical conductivity for
polymers which can be directly painted by ESP. The process aids in reduction of
volatile organic compounds (VOC). NGPs from
Angstron can also enhance Class-A surface finish by reducing short-term waviness
caused by inter-fiber matrix shrinkage by allowing for the same CTE between
macro fibers, while platelets get rid of surface defects such as sub-surface out
gassing and secondary operations in polymer processing. Because of the high
thermal conductivity of NGPs, nano graphene materials are suitable for Li-Ion battery,
supercapacitor electrode, and fuel cell bipolar plate applications in the
automotive industry.
Other benefits of NGPs include enhanced thermo- mechanical properties, improved
barrier properties and flame retardancy.
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.
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This information has been sourced, reviewed and adapted from
materials provided by Angstron Materials
For more information on this source, please visit Angstron
Materials