Synthesis of effective carbon nanoreinforcements for structural applications

Patent metadata

Field	Value
Publication number	US-10086539-B2
Application number	US-201514669378-A
Country	US
Kind code	B2
Filing date	Mar 26, 2015
Priority date	Mar 25, 2014
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

A methodology is disclosed to produce nanostructured carbon particles that act as effective reinforcements. The process is conducted in the solid state at close to ambient conditions. The carbon nanostructures produced under this discovery are nanostructured and are synthesized by mechanical means at standard conditions. The benefit of this processing methodology is that those carbon nanostructures can be used as effective reinforcements for composites of various matrices. As example, are to demonstrate its effectiveness the following matrices were including in testing: ceramic, metallic, and polymeric (organic and inorganic), as well as bio-polymers. The reinforcements have been introduced in those matrices at room and elevated temperatures. The raw material is carbon soot that is a byproduct and hence abundant and cheaper than pristine carbon alternatives (e.g. nanotubes, graphene).

First claim

The invention claimed is:

1. A reinforced polymer matrix, the polymer matrix made by combining carbon soot with a liquid polymer matrix to form a complex and hardening the complex to form a reinforced structure;
wherein the elongation at break of the polymer structure reinforced with soot is at least 40% greater than a hardened polymer structure that has not been reinforced with soot.

2. The reinforced polymer matrix of claim 1 , wherein at least 90% of the carbon soot is sp2 bonded.

3. The reinforced polymer matrix of claim 1 , wherein the density of the carbon soot is about 0.2-2 g/cm3.

4. The reinforced polymer matrix of claim 3 , wherein the reinforced structure comprises 0.2 to 1% by weight of soot.

5. The reinforced polymer matrix of claim 4 , wherein the soot increases the tensile strength of the reinforced structure as compared to a hardened polymer structure that has not been reinforced with soot.

6. The reinforced polymer matrix of claim 5 , wherein a measurement of Young's modulus is at least 10% greater than the hardened polymer structure that has not been reinforced with soot.

7. The reinforced polymer matrix of claim 5 , wherein the soot increases the average elastic modulus by at least 15% over the hardened polymer structure that has not been reinforced with soot.

8. The reinforced polymer matrix of claim 5 , wherein the soot increases the hardness by at least 20% over the hardened polymer structure that has not been reinforced with soot.

9. The reinforced polymer matrix of claim 5 , wherein the soot increases the average elastic modulus by at least 8% over the hardened polymer structure that has not been reinforced with soot.

Assignees

• Univ Houston System

Inventors

• Robles Francisco C
• Calderon Hector A
• Okonkwo Anderson

Classifications

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• C03C2214/16

  Microcrystallites, e.g. of optically or electrically active material · CPC title

• C22C26/00

  Alloys containing diamond {or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes} · CPC title

• C04B2235/425

  Graphite · CPC title

• C04B35/6261

  Milling · CPC title