Method of Enhancing Carbon Product Performance in Elastomers
AssigneeBeyond Lotus LLC
InventorsFrederick H. Rumpf, Michael D. Morris, Jincheng Xiong, Michael Beaulieu, Michael Zhang
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Abstract
A method of processing particulate carbon comprises combining pyrolysis carbon with water to form a mixture to form an initial slurry having 1-35 wt % solids and milling the pyrolysis carbon to form a milled slurry comprising wet milled reclaimed carbon and water; wherein a volume weighted particle size distribution of the wet milled reclaimed carbon measured via scanning electron microscopy has one or more of D50 no greater than 2700 nm and no more than 15% of particles having a particle diameter greater than 5 microns.
Claims29
A method of processing particulate carbon, comprising:
- combining pyrolysis carbon with water to form a mixture to form an initial slurry having 1-35 wt % solids;
- and
- milling the pyrolysis carbon to form a milled slurry comprising wet milled reclaimed carbon and water;
- wherein a volume weighted particle size distribution of the wet milled reclaimed carbon measured via scanning electron microscopy has one or more of D50 no greater than 2700 nm and no more than 15% of particles having a particle diameter greater than 5 microns.
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Particulate filler comprising at least 10 wt % (dry basis) reclaimed carbon, wherein a volume weighted particle size distribution of the reclaimed carbon measured via scanning electron microscopy has one or more of D50 no greater than 2700 nm and no more than 15% of particles having a particle diameter greater than 5 microns.
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An elastomer composite comprising a mixture of an elastomer and 30-90 phr of a particulate filler, wherein the particulate filler comprises at least 10 wt % reclaimed carbon having one or more of D50 (volume weighted) no greater than 2700 nm and no more than 15% (volume weighted) of particles having a particle diameter greater than 5 microns as measured by scanning electron microscopy.
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An elastomer composite comprising a mixture of an elastomer and 30-90 phr of particulate filler, wherein the particulate filler comprises at least 10 wt % reclaimed carbon, wherein the elastomer composite exhibits a macrodispersion of at most 0.03x+4.4, wherein x is the percentage of reclaimed carbon in the particulate filler and macrodispersion is an area percentage of undispersed filler particles larger than 5 μm determined by optical microscopy in reflection mode.
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Dependencies are inferred from the claim text.