# US 11,027,534 B2 · Fiber composite material and manufacturing method thereof

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- Number: US 11,027,534 B2
- Document ID: US11027534B2
- Status: Granted
- Kind: B2
- Application number: 16/162,555
- Filed: 2018-10-17
- Published: 2019-04-18
- Granted: 2021-06-08
- Earliest claimed: 2017-10-18
- Assignees: Industrial Technology Research Institute
- Applicants: Industrial Technology Research Institute
- Inventors: Shir-Joe Liou; Jih-Hsiang Yeh
- Web page: https://patentgrep.com/patent/US11027534B2

## CPC

- B32B 3/08: characterised by added members at particular parts {(layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18)}
- B29C 70/0035: {comprising two or more matrix materials}
- B29C 70/081: {Combinations of fibres of continuous or substantial length and short fibres}
- B29C 70/30: Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C 70/32: on a rotating mould, former or core
- B29D 23/00: Producing tubular articles (B29D24/00 takes precedence)
- B32B 1/08: Tubular products
- B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)}
- B32B 27/08: of synthetic resin
- B32B 27/12: next to a fibrous or filamentary layer
- B32B 37/12: characterised by using adhesives
- B29K 2105/167: {Nanotubes}
- B29K 2307/04: Carbon
- B29K 2995/0091: Damping, energy absorption
- B32B 2250/20: All layers being fibrous or filamentary
- B32B 2260/021: Fibrous or filamentary layer
- B32B 2260/046: Synthetic resin
- B32B 2262/0261: Polyamide fibres
- B32B 2262/0269: Aromatic polyamide fibres
- B32B 2262/0276: Polyester fibres
- B32B 2262/062: Cellulose fibres, e.g. cotton
- B32B 2262/08: Animal fibres, e.g. hair, wool, silk
- B32B 2262/10: Inorganic fibres
- B32B 2262/101: Glass fibres
- B32B 2262/103: Metal fibres
- B32B 2262/105: Ceramic fibres
- B32B 2262/106: Carbon fibres, e.g. graphite fibres
- B32B 2307/56: Damping, energy absorption
- B32B 2307/732: Dimensional properties
- B32B 2307/746: Slipping, anti-blocking, low friction
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES

## Abstract

A fiber composite material and a manufacturing method thereof are provided. The fiber composite material includes: a fiber prepreg layer including a first resin and fibers impregnated with the first resin; and a plurality of strip-shaped composite resin layers including multi-layered carbon nanotubes and a second resin disposed on the fiber prepreg layer, wherein the plurality of the strip-shaped composite resin layers and the fiber prepreg layer together form a hollow tubular body, and a length direction of the plurality of strip-shaped composite resin layer is at an angle of from 0 degree and less than 90 degrees with respect to an extending direction of the fiber prepreg layer.

## Claims

### Claim 1

A fiber composite material, comprising:
a fiber prepreg layer comprising a first resin and fibers impregnated in the first resin; and
a plurality of strip-shaped composite resin layers disposed on the fiber prepreg layer, the plurality of the strip-shaped composite resin layers and the fiber prepreg layer together form a hollow tubular body having a lamination of multi-layer fiber prepreg layers to make the plurality of the strip-shaped composite resin layers interposed between the multi-layer fiber prepreg layers,
wherein the plurality of the strip-shaped composite resin layers comprise multi-layered carbon nanotubes and a second resin, and a length direction of the plurality of the strip-shaped composite resin layers is at an angle of from 0 degree to less than 90 degrees with respect to an extending direction of the fiber prepreg layer.

### Claim 2 (depends on 1)

The fiber composite material of claim 1, wherein a ratio of width a strip-shaped composite resin layer to an interval of the plurality of the strip-shaped composite resin layers is 1:1 to 1:10.

### Claim 3 (depends on 1)

The fiber composite material of claim 1, wherein the first resin and the second resin are the same, and the first resin and the second resin are thermoplastic resins or thermosetting resins.

### Claim 4 (depends on 1)

The fiber composite material of claim 1, wherein the first resin and the second resin are different, and the first resin and the second resin are thermoplastic resins or thermosetting resins.

### Claim 5 (depends on 1)

The fiber composite material of claim 1, wherein the multi- layered carbon nanotube has a specific surface area of 100 m2/g to 300 m2/g.

### Claim 6 (depends on 1)

The fiber composite material of claim 1, wherein a surface of the multi-layered carbon nanotube has reactive functional groups containing an amine group, a carboxyl group, a hydroxyl group or an acyl chloride group.

### Claim 7 (depends on 1)

The fiber composite material of claim 1, wherein an amount of the multi-layered carbon nanotubes in the plurality of the strip-shaped composite resin layers is 0.5 wt % to 8 wt %.

### Claim 8 (depends on 1)

The fiber composite material of claim 1, wherein the fibers comprise carbon fibers, glass fibers, aromatic polyamine (Kevlar) fibers, boron fibers, nylon fibers, Tedron fibers, cotton fibers, wool fibers, steel fibers, aluminum fibers or ceramic silk fibers.

### Claim 9 (depends on 1)

The fiber composite material of claim 1, wherein the angle is from 0 degree to 40 degrees.

### Claim 10

A method for manufacturing a fiber composite material, comprising:
attaching a plurality of strip-shaped composite resin layers on a fiber prepreg layer comprising a first resin and fibers impregnated in the first resin, wherein the plurality of the strip-shaped composite resin layers comprise multi-layered carbon nanotubes and a second resin, and a length direction of the plurality of the strip-shaped composite resin layers is at an angle of from 0 degree to less than 90 degrees with respect to an extending direction of the fiber prepreg layer;
winding the fiber prepreg layer and the plurality of the strip-shaped composite resin layers to form a hollow tubular body having a lamination of multi-layer fiber prepreg layers; and
shaping the hollow tubular body.

### Claim 11 (depends on 10)

The method of claim 10, wherein the plurality of the strip-shaped composite resin layers are between the multi-layer fiber prepreg layers with multiple lamination one another or without any lamination, or with spiral distribution.

### Claim 12 (depends on 10)

The method of claim 10, wherein a ratio of width of the strip-shaped composite resin layer to an interval of the plurality of the strip-shaped composite resin layers is 1:1 to 1:10.

### Claim 13 (depends on 10)

The method of claim 10, wherein the first resin and the second resin are the same, and the first resin and the second resin are thermoplastic resins or thermosetting resins.

### Claim 14 (depends on 10)

The method of claim 10, wherein the first resin and the second resin are different, and the first resin and the second resin are thermoplastic resins or thermosetting resins.

### Claim 15 (depends on 10)

The method of claim 10, wherein the multi-layered carbon nanotube has a specific surface area of 100 m2/g to 300 m2/g.

### Claim 16 (depends on 10)

The method of claim 10, wherein a surface of the multi- layered carbon nanotube has reactive functional groups containing an amine group, a carboxyl group, a hydroxyl group or an acyl chloride group.

### Claim 17 (depends on 10)

The method of claim 10, wherein an amount of the carbon nanotubes in the plurality of the strip-shaped composite resin layers is 0.5 wt % to 8 wt %.

### Claim 18 (depends on 10)

The method of claim 10, wherein the fibers comprise carbon fibers, glass fibers, aromatic polyamine (Kevlar) fibers, boron fibers, nylon fibers, Tedron fibers, cotton fibers, wool fibers, steel fibers, aluminum fibers or ceramic silk fibers.

### Claim 19 (depends on 10)

The method of claim 10, wherein the angle is from 0 degree to 40 degrees.