Thermally conductive and electrically insulating high temperature polymers
OwnerShahab ZEKRIARDEHANI, Javed Abdurrazzaq MAPKAR +1inventors
InventorsShahab ZEKRIARDEHANI, Javed Abdurrazzaq MAPKAR, Bhavin N. PATEL
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Abstract
Thermally conductive and electrically insulating PAEK nanocomposite materials are provided that can exhibit good mechanical properties at elevated temperatures (up to 200 deg C.). This class of high temperature polymers are thermally conductive and electrically insulating yet have medium viscosity which enables then to be useful for injection molding of thin sections.
Claims21
A thermally conductive polymer composite material prepared from a composition comprising a poly(aryl ether ketone) (PAEK) resin;
- a plurality of thermally conductive ceramic fillers;
- and a dispersing and processing additive.
A thermally conductive polymer composite material, prepared from a composition comprising
- 50-65 wt % of a polyaryletherketone (PAEK);
- 5-20 wt % of a thermally conductive ceramic flake filler;
- 15-30 wt % of a thermally conductive ceramic platelet filler, optionally further comprising thermally conductive ceramic filler clusters;
- and
- 1-5 wt % of a nanostructured flow modifier.
A method of making a PAEK nanocomposite encapsulated stator, the method comprising
- mixing a PAEK nanocomposite composition;
- heating the PAEK nanocomposite composition to a processing temperature to form a melt processed PAEK nanocomposite composition;
- extruding the melt processed PAEK nanocomposite composition around at least a portion of a stator;
- and
- cooling the extruded PAEK nanocomposite to provide the encapsulated stator,
- wherein the PAEK nanocomposite composition comprises a poly(aryl ether ketone) (PAEK) resin;
- a plurality of thermally conductive ceramic fillers;
- and a dispersing and processing additive.
Dependencies are inferred from the claim text.