SIGRATHERM® ePCM Composite Materials

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Description

SIGRATHERM® ePCM Composite Materials guarantee high storage density and fast charge/discharge cycles.


Phase Change Materials (PCM) are materials whose latent heat produced mainly at the solid-liquid phase transition point (heat of fusion), is used in technical applications. Water/ice is the best-known example of a PCM. Salt hydrates as well as paraffins are among the PCMs widely used for other temperature requirements. Pure PCM show high storage density, long charging and discharging cycles and low thermal conductivity.


SIGRATHERM ePCM is a graphite/PCM compound material made from expanded graphite with encapsulated PCM material. It is supplied in plates and sheets.

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.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

0.85 g/cm³

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Dimension

PropertyValue

Length

300 mm

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Thickness

12 mm

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Width

300 mm

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Mechanical

PropertyTemperatureValue

Elastic modulus

23.0 °C

105 GPa

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Flexural strength

23.0 °C

2 MPa

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Thermal

PropertyTemperatureValueComment

Melting point

28 °C

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Specific heat capacity

23.0 °C

140 J/(kg·K)

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Thermal conductivity

23.0 °C

5 W/(m·K)

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in plane

Thermal conductivity, through-plane

23.0 °C

2.5 W/(m·K)

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through plane