Nanomaterials, nanocomposite materials, and methods thereof

Patent metadata

Field	Value
Publication number	US-11814291-B2
Application number	US-201917415987-A
Country	US
Kind code	B2
Filing date	Dec 18, 2019
Priority date	Dec 21, 2018
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

The present invention relates to a nanomaterial comprising a nanoclay having a layered structure and carbon nanotubes being intercalated between layers of the layered of the nanoclay, and manufacturing method thereof.

First claim

What is claimed is:

1. A nanomaterial, comprising:
a nanoclay,
the nanoclay having a layered structure; and
carbon nanotubes,

the carbon nanotubes being intercalated between layers of the layered structure of the nanoclay, and wherein:
(a) the carbon nanotubes comprise an I D /I G Raman intensity ratio or A D /A G Raman area ratio that is less than 2; or less than 1.5; or less than 1;
(b) the carbon nanotubes comprise approximately 75% to approximately 90% sp 2 carbon bonding; or approximately 80% to approximately 90% sp 2 carbon bonding; or approximately 85% to approximately 90% sp 2 carbon bonding;
(c) the carbon nanotubes comprise an I G′ /I G Raman intensity ratio that is about 0.2 to about 1;
(d) the carbon nanotubes have a high aspect ratio of about 300 to about 1000; or
(e) the nanomaterial has a powder conductivity of about 10-8 S/cm to about 100 S/cm.

2. The nanomaterial of claim 1 , wherein the carbon nanotubes comprise approximately 75% to approximately 90% sp 2 carbon bonding; or approximately 80% to approximately 90% sp 2 carbon bonding; or approximately 85% to approximately 90% sp 2 carbon bonding.

3. The nanomaterial of claim 1 , wherein the carbon nanotubes comprise the I G′ /I G Raman intensity ratio of about 0.2 to about 1.

4. The nanomaterial of claim 1 , wherein the carbon nanotubes have the high aspect ratio of about 300 to about 1000.

5. The nanomaterial of claim 1 , wherein the nanomaterial has the powder conductivity of about 10 −8 S/cm to about 100 S/cm.

6. The nanomaterial of claim 1 , wherein the nanoclay is a montmorillonite nanoclay, a bentonite nanoclay, a hectorite nanoclay, a saponite nanoclay, a halloysite nanoclay, a kaolin nanoclay, a laponite nanoclay, a vermiculite nanoclay, or a combination thereof.

7. A nanocomposite material comprising:
a polymer; and
a nanomaterial comprising a nanoclay and carbon nanotubes, wherein the nanoclay has a layered structure and the carbon nanotubes are intercalated between layers of the layered structure of the nanoclay,
wherein the nanomaterial is dispersed throughout the polymer; and wherein:
(a) the nanocomposite material exhibits a percolation threshold at a nanomaterial concentration of about 0.1 wt % to about 2 wt %; or about 0.1 wt % to about 5 wt %;
(b) the nanocomposite material exhibits an EMI shielding of about 8 to about 10; or
(c) the nanocomposite material has a loss tangent that is less than 1; or less than 0.8; or less than 0.5.

8. The nanocomposite material of claim 7 , wherein the nanocomposite material exhibits the EMI shielding of about 8 to about 10.

9. The nanocomposite material of claim 7 , wherein the nanocomposite material has the loss tangent that is less than 1; or less than 0.8; or less than 0.5.

10. The nanocomposite material of claim 7 , wherein the nanomaterial is at a concentration of about 0.1 wt % to about 5 wt %.

11. The nanocomposite material of claim 7 , wherein the polymer is a thermoplastic, an engineering thermoplastic, an elastomer, a thermoplastic elastomer, a thermoset material, or a combination thereof.

Assignees

• Uti Lp

Inventors

• Sundararaj Uttandaraman
• Asgari Mohammad

Classifications

• C01B32/168 Primary

  After-treatment · CPC title

• B01J31/2239

  Bridging ligands, e.g. OAc in Cr2(OAc)4, Pt4(OAc)8 or dicarboxylate ligands · CPC title

• B01J37/08

  Heat treatment {(B01J37/0009, B01J37/0018 take precedence)} · CPC title

• B01J37/16

  Reducing · CPC title

• C01B32/162

  characterised by catalysts · CPC title