SIGRATHERM® Water Based Graphite Dispersions Grade B

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Description

Dispersions based on expanded graphite powders and graphite nanoplates.


Expanded graphite nanoplates consist of small, 1-15 nanometer thick, single or multilayer graphite layers, with diameters up to 100 micrometers. They constitute a new class of graphite nanoparticles with multifunctional properties. In order to obtain a graphite dispersion, small graphite particles and nanoplates produced by secondary treatment of our expanded graphite are mixed with a dispersant in water. Depending on the application, the viscosity of the dispersion can be adjusted by means of different concentrations of solids. The maximum dispersible solid content is 5.5% by weight.


Key characteristics of our graphite nanoplates are:

  • Excellent layer formation on a variety of substrates, e.g. copper foil or PET film
  • The high aspect ratio of the graphite nanoplates allows high electrical and thermal conductivity
  • Freestanding graphite foils with a thickness between 5 and 15 μm can be produced

This material data has been provided by SGL Carbon.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyTemperatureValueComment

Particle size D50

10 μm

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liquid form

Specific surface area

20 m²/g

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solid form

Viscosity

23.0 °C

1.4 Pa·s

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liquid form

Thermal

PropertyTemperatureValueComment

Ash content

23.0 °C

0.01 %

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liquid form, DIN 51903 (max)

Chemical properties

PropertyValueComment

Carbon

5.5 %

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liquid form

Oxygen

0.5 %

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solid form (max)

Sulfur

0.1 %

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solid form (max)

Technological properties

Property
Other

Ratio of dispersion agent <1% (in water).