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Flowtherm®
Phase Change Materials
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Description
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Kerafol's Flowtherm films are a combination of
fiberglass reinforced hot-setting waxes with or without a carrier material.
The wax mixture of Flowtherm melts at various temperatures depending
on its dimensions and so can fill even the smallest irregularities
between the power module and the heat sink. This creates an improved
contact between the surfaces and increases heat transfer. It's special
design makes it easy to use and to store. Flowtherm films are optionally
available with single-side adhesive.
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Applications
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notebooks |
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desktop CPU's |
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IGBT units |
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Graphs
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Comparison of the Thermal Resistance of
Different PCM's in Dependence on the Contact Pressure
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click
on image to
view full-sized
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Flowtherm®: Phase
Change Materials (PCM)
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Unit
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PCM
441
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PCM
442
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PCM
471
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| Color |
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black
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black
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gray
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| Compound |
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filled hot-setting wax
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filled hot-setting wax
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filled hot-setting wax
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| Thermal
Properties |
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K/W
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0.02
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0.02
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0.01
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W/mK
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3.9
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4.0
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8.0
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| Electrical
Properties |
| Dielectric Breakdown |
Ed;ac
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kV/mm
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0.2
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0.2
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5.0
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| Mechanical
Properties |
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mm
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0.075
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0.055
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0.070
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without
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without
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without
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°C
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56
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60
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46
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| Continuous Operation Temperature |
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°C
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+125
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+125
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+125
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*
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- Youngs Modulus sample size
30x30x2.5mm3;
- variable contact pressure;
- compression 50% of measured thickness ; |
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Overview
Datasheet
