# US 2014/0154412 A1 · System and method for surface treatment and barrier coating of fibers for in situ cnt growth

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- Number: US 2014/0154412 A1
- Document ID: US20140154412A1
- Status: Published application
- Kind: A1
- Application number: 14/174,715
- Filed: 2014-02-06
- Published: 2014-06-05
- Earliest claimed: 2010-02-25
- Assignees: Applied Nanostructured Solutions, LLC
- Applicants: Applied Nanostructured Solutions, LLC
- Inventors: Harry C. MALECKI; Mark R. Alberding; Brandon K. Malet; Tushar K. Shah
- Web page: https://patentgrep.com/patent/US20140154412A1

## CPC

- C01B 32/16: Preparation
- B01J 21/185: {Carbon nanotubes (carbon nanotubes per se C01B32/15)}
- B01J 23/745: Iron
- B01J 35/45: Nanoparticles
- B01J 37/0219: {the coating containing organic compounds}
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- B82Y 40/00: Manufacture or treatment of nanostructures
- C01B 32/162: characterised by catalysts
- D06B 1/02: by spraying or projecting (D06B1/08 takes precedence)
- D06B 3/10: of fabrics (D06B3/24, D06B3/28, D06B3/32 take precedence; jiggers D06B3/32)
- D06B 19/00: Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
- D06M 11/74: with carbon or graphite; with carbides; with graphitic acids or their salts
- Y10S 977/842: for carbon nanotubes or fullerenes
- Y10T 428/2495: Thickness [relative or absolute]
- Y10T 428/25: Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- D06B: TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS (mechanical treatment of natural fibrous or filamentary material to obtain fibres or filaments D01B)
- D06M: TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A system for synthesizing carbon nanotubes (CNT) on a fiber material includes a surface treatment system adapted to modify the surface of the fiber material to receive a barrier coating upon which carbon nanotubes are to be grown, a barrier coating application system downstream of the surface treatment system adapted to apply the barrier coating to the treated fiber material surface, and a barrier coating curing system downstream of the barrier coating application systems for partially curing the applied barrier coating to enhance reception of CNT growth catalyst nanoparticles.

## Claims

### Claim 1

A method comprising:
depositing a barrier coating on a substrate comprising a plurality of fibers, the barrier coating being deposited in a liquid form that is uncured;
applying a plurality of metal nanoparticles to the substrate;
embedding the plurality of metal nanoparticles in the barrier coating;
curing the barrier coating; and
growing a plurality of carbon nanotubes on the substrate, the carbon nanotubes extending born the cured barrier coating.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
partially curing the barrier coating before applying the plurality of metal nanoparticles to the substrate.

### Claim 3 (depends on 1)

The method of claim 1, wherein the plurality of metal nanoparticles are applied to the substrate before partially curing the barrier coating.

### Claim 4 (depends on 3)

The method of claim 3, further comprising:
treating the substrate with a plasma before applying the plurality of metal nanoparticles thereto.

### Claim 5 (depends on 1)

The method of claim 1, wherein the barrier coating and the plurality of metal nanoparticles are deposited on the substrate concurrently.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
treating the substrate with a plasma before depositing the barrier coating thereon.

### Claim 7 (depends on 1)

The method of claim 1, wherein the substrate is provided from a payout system and is rewound following growth of the plurality of carbon nanotubes thereon.

### Claim 8 (depends on 1)

The method of claim 1, wherein the barrier coating has a thickness ranging between about 10 nm to about 100 nm.

### Claim 9 (depends on 1)

The method of claim 1, wherein the barrier coating comprises a substance selected from the group consisting of an alumina, an alumoxane, alumina nanoparticles, spin on glass, glass nanoparticles, a siloxane, a silane, and any combination thereof.

### Claim 10 (depends on 1)

The method of claim 1, wherein the barrier coating is cured while growing the plurality of carbon nanotubes on the substrate.

### Claim 11 (depends on 1)

The method of claim 1, further comprising:
spreading the plurality of fibers before depositing the barrier coating thereon.

### Claim 12 (depends on 1)

The method of claim 1, wherein the barrier coating is deposited by spray coating or dip coating.

### Claim 13 (depends on 1)

The method of claim 1, wherein the carbon nanotubes are oriented perpendicular to the substrate.

### Claim 14 (depends on 1)

The method of claim 1, wherein the carbon nanotubes share common nanotube walls with one another.