Rate-sensitive protective apparel

Patent metadata

Field	Value
Publication number	US-2024008564-A1
Application number	US-202318346873-A
Country	US
Kind code	A1
Filing date	Jul 5, 2023
Priority date	Jul 6, 2022
Publication date	Jan 11, 2024
Grant date	—

Abstract

A rate-sensitive protective apparel including an outer fabric shell, first and second sealing material layers positioned within the outer fabric shell, and a shear thickening fluid core disposed between the first and second sealing material layers is provided. The sealing material layers have fibers extending towards the apparel interior and enmeshing the shear thickening fluid core, and the shear thickening fluid directly contacts with the sealing material and the fibers.

First claim

1 . A rate-sensitive protective apparel comprising:
an outer fabric shell; a first sealing material layer positioned within the outer fabric shell; a second sealing material layers positioned within the outer fabric shell; and a shear thickening fluid core disposed between the first and second sealing material layers,
wherein the first and second sealing material layers have fibers extending towards the apparel interior and enmeshing the shear thickening fluid core, and the shear thickening fluid core comprises a shear thickening fluid and the shear thickening fluid directly contacts the sealing material and the fibers.

2 . The rate-sensitive protective apparel of claim 1 , wherein the first and second sealing material layers are treated with a coupling agent selected from 3-triethoxysilylpropyl isocyanate or 3-aminopropyltriethoxysilane.

3 . The rate-sensitive protective apparel of claim 1 , wherein the first and second sealing material layers are treated with 2-hydroxyethyl acrylate.

4 . The rate-sensitive protective apparel of claim 1 , wherein the outer fabric shell has a width greater than the first sealing material layer, the second sealing material layer, and the shear thickening fluid core.

5 . The rate-sensitive protective apparel of claim 1 , wherein each of the fiber has a length ranging from 1 to 12 mm.

6 . The rate-sensitive protective apparel of claim 1 , wherein the fibers have a density on the first and second sealing material layers ranging from 1 to 20 per cm 2 .

7 . The rate-sensitive protective apparel of claim 1 , wherein the shear thickening fluid core comprises nanoparticles or nanowires suspended in a polyethylene glycol.

8 . The rate-sensitive protective apparel of claim 7 , wherein a mass ratio of the nanoparticles or nanowires and the polyethylene glycol ranging from 1:1 to 2.5:1.

9 . The rate-sensitive protective apparel of claim 1 , wherein the first and second sealing material layers are selected from silicone, latex, neoprene rubber, styrene-butadiene rubber, EPDM rubber, or a combination thereof.

10 . The rate-sensitive protective apparel of claim 1 , wherein the outer fabric is an elastic fabric capable of conforming to complex curvature.

11 . A method of manufacturing a rate-sensitive protective apparel, comprising:
providing a first outer fabric shell; coating a first sealing material onto the first outer fabric shell to form a first sealing material layer; flocking first fibers on the first sealing material; providing a second outer fabric shell; coating a second sealing material onto the second outer fabric shell to form a second sealing material layer; flocking second fibers on the second sealing material; gluing the edges of the first and the second sealing material layers together; and injecting or printing a shear thickening fluid between the first and second sealing material layers to form a shear thickening fluid core.

12 . The method of manufacturing a rate-sensitive protective apparel of claim 11 , further comprising:
treating the rate-sensitive protective apparel with a coupling agent selected from 3-triethoxy silylpropyl isocyanate or 3-aminopropyltriethoxysilane.

13 . The method of manufacturing a rate-sensitive protective apparel of claim 11 , further comprising:
treating the rate-sensitive protective apparel with 2-hydroxyethyl acrylate.

14 . The method of manufacturing a rate-sensitive protective apparel of claim 11 , wherein the first and second outer fabric shell have a width greater than the first sealing material layer, the second sealing material layer, and the shear thickening fluid core.

15 . The method of manufacturing a rate-sensitive protective apparel of claim 11 , wherein the first fibers and the second fibers have a length ranging from 1 to 12 mm.

16 . The method of manufacturing a rate-sensitive protective apparel of claim 11 , wherein the first and second fibers have a density ranging from 1 to 20 per cm 2 on the first and second sealing material layers.

17 . The method of manufacturing a rate-sensitive protective apparel of claim 11 , wherein the shear thickening fluid comprises nanoparticles or nanowires suspended in polyethylene glycol.

18 . The method of manufacturing a rate-sensitive protective apparel of claim 17 , wherein a mass ratio between the nanoparticles or nanowires and polyethylene glycol ranging from 1:1 to 2.5:1.

19 . The method of manufacturing a rate-sensitive protective apparel of claim 11 , wherein the first and second sealing materials are selected from silicone, latex, neoprene rubber, styrene-butadiene rubber, or EPDM rubber.

Assignees

• Nano & Advanced Materials Inst Ltd

Inventors

• Zhang Kang
• Zhang Shilong
• Lau Pak Chung
• Chan Meishan
• Li Jifan

Classifications

• F41H5/0478

  Fibre- or fabric-reinforced layers in combination with plastics layers · CPC title

• B32B2262/00

  Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives · CPC title

• B32B2437/00

  Clothing · CPC title

• B32B2307/56

  Damping, energy absorption · CPC title

• B32B2255/26

  Polymeric coating · CPC title