Rheological molecular rebar
AssigneeMolecular Rebar Design, LLC
InventorsClive P. Bosnyak, Kurt W. Swogger
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AssigneeMolecular Rebar Design, LLC
InventorsClive P. Bosnyak, Kurt W. Swogger
Estimating the term…
In various embodiments a carbon nanotube molecular rebar formulation comprising a specific composition is disclosed. The composition comprises discrete carbon nanotubes that have at least a portion of the carbon nanotubes with a number average (ratio of number average contour length to end to end length) of greater than 1.1 and up to about 3. These discrete carbon nanotubes having the specified ratio of number average (tube contour length (TCL) to number average tube end-end length) ratio are not only discrete (separated) from one another, but are also controlled in their alignment such that processability and mechanical strength properties are both enhanced. Utility of the molecular rebar composition includes, but is not limited to improved composites, engineered materials, foams, sealants, coatings and adhesives, energy devices such as photovoltaics, batteries and capacitors, sensors and separation membranes.
A composition comprising discrete carbon nanotubes wherein at least a portion of discrete nanotubes has a ratio of number average value of ((tube contour length (TCL)):(tube end to end length (TEE))) of from about 1.1 to about 3.
A composition comprising discrete carbon nanotubes wherein at least a portion of discrete nanotubes has a number average tube contour length (TCL) of at least 10% greater than, and up to about 300% of, a number average tube end to end length (TEE), wherein the number average TCL and TEE are obtained from the same batch of discrete carbon nanotubes.
In a composition comprising discrete carbon nanotubes having an average actual aspect ratio, the improvement comprising at least about 5% (volume) of the discrete carbon nanotubes having an apparent aspect ratio from about 50% to about 99% of the average actual aspect ratio of the discrete carbon nanotubes.
In a composition comprising discrete carbon nanotubes having a number average contour length TCL, the improvement comprising at least about 5% (volume) of the discrete carbon nanotubes have a number average end-to-end tube length TEE from about 50% to about 99% of the number average TCL.
Dependencies are inferred from the claim text.