KR20110114008A - Body armour using shear thickening fluid - Google Patents
Body armour using shear thickening fluid Download PDFInfo
- Publication number
- KR20110114008A KR20110114008A KR1020100033404A KR20100033404A KR20110114008A KR 20110114008 A KR20110114008 A KR 20110114008A KR 1020100033404 A KR1020100033404 A KR 1020100033404A KR 20100033404 A KR20100033404 A KR 20100033404A KR 20110114008 A KR20110114008 A KR 20110114008A
- Authority
- KR
- South Korea
- Prior art keywords
- shear thickening
- polyamide
- thickening fluid
- hybrid
- silica particles
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H1/00—Personal protection gear
- F41H1/02—Armoured or projectile- or missile-resistant garments; Composite protection fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/08—Reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2571/00—Protective equipment
- B32B2571/02—Protective equipment defensive, e.g. armour plates, anti-ballistic clothing
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- Laminated Bodies (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The present invention relates to a hybrid bulletproof material made of a polyamide fabric impregnated with a shear thickening fluid and a body armor including the same, wherein the bulletproof material and the body armor have a light and excellent ballistic performance.
Description
The present invention relates to a hybrid anti-ballistic material made of a polyamide fabric impregnated with a shear thickening fluid and a body armor including the same. In addition, the present invention relates to a bulletproof material and a body armor including the hybrid bulletproof material and polyamide fabric laminated.
The conventional body armor is made of a laminated structure in which a plurality of layers of polyamide-based fibers are stacked. This is because the bulletproof performance increases as the lamination increases, but the wearer feels uncomfortable due to the slow motion and the poor activity due to the thick and heavy body armor. Because of this, most body armor was manufactured in the form of a vest to free limbs, but only the torso was protected and there was a risk that other parts, such as arms or legs, were unprotected.
Accordingly, the present inventors have continued to research thin and excellent ballistic resistance, and found that the impregnated shear thickening fluid in polyamide fabric increases the ballistic performance, the shear thickening fluid most suitable for use as a body armor. The composition and impregnation and the production of bulletproof materials were checked.
The present invention provides a bulletproof material having improved light and bulletproof performance.
In another aspect, the present invention provides a body armor comprising the anti-ballistic material.
In order to achieve the above object, the present invention provides a hybrid ballistic material characterized in that the shear thickening fluid is impregnated in the polyamide fabric made of polyamide multifilament. In another aspect, the present invention provides a body armor including the hybrid body bulletproof material.
In addition, the present invention provides a bulletproof material characterized in that the amide fabric made of the hybrid bulletproof material and polyamide multifilament are laminated with each other, and provides a body armor including the bulletproof material.
The anti-ballistic material of the present invention is light and improved ballistic performance, when manufacturing a body armor using this, it is possible to produce a thinner than the conventional body armor. Therefore, while the conventional body armor was only able to manufacture the body part due to the thick and active problem, the body armor of the present invention can be applied to parts of the body with a lot of movement such as arms or legs without great inconvenience to protect a wider body. Can be.
1 shows the structure of a bulletproof material in which a shear thickening fluid is impregnated in a kevlar fabric with a hybrid
Hereinafter, the present invention will be described in detail.
The present invention provides a hybrid antiballistic material characterized in that a shear thickening fluid is impregnated into a polyamide fabric made of polyamide multifilament.
In another aspect, the present invention provides a hybrid ballistic material impregnated with a shear thickening fluid in a polyamide fabric made of polyamide multifilament, and a polyamide fabric made of polyamide multifilament is laminated with each other.
The polyamide may be an aliphatic polyamide or an aromatic polyamide, but is preferably an aromatic polyamide.
Preferably, the polyamide is para-based polyamide, and is Nomax, Twaron, Technora, or Kevlar. Even more preferably, the polyamide is Kevlar.
The shear thickening fluid is a form in which silica particles in powder form are filled in a nonvolatile and nontoxic dispersion solvent. At this time, the silica particles preferably have a size of 10 to 1,000 nm, more preferably has a size of 10 to 500 nm, even more preferably has a size of 10 to 300 nm, even more preferably 10 To 200 nm in size. However, considering the ballistic performance, it is more preferable that the silica particles have a size of 10 to 100 nm, and when the size of 10 to 50 nm, the shear thickening phenomenon started at the lowest shear strain. Excellent The dispersion solvent is not particularly limited as long as it is volatile, non-toxic, and maintains the shear thickening properties of the shear thickening fluid. However, it is preferable to use ethylene glycol or polyethylene glycol.
The silica particles are preferably 40 to 70% by weight, preferably 50 to 70% by weight of the dispersion solvent. The higher the concentration of silica particles, the better the antiballistic effect, but the weight and thickness increase, reducing the wearer's movement. In view of both practicality and antiballistic performance, the silica particles are either ethylene glycol or polyethylene glycol. It is most preferable to fill in a dispersion solvent such as 55 to 65% by weight.
The polyamide multifilament is preferably composed of a filament having a single yarn fineness of 0.5 to 1.8 denier, the tensile strength of the polyamide multifilament is preferably 34 g / d, but is not necessarily the single yarn fineness and tensile strength. .
The hybrid bulletproof material impregnated with the shear thickening fluid in the polyamide fabric made of the polyamide multifilament of the present invention, and the bulletproof material in which the polyamide fabric made of the polyamide multifilament is laminated to each other have a ballistic effect according to the laminated structure of the laminate. Will be different. The laminate is preferably laminated with at least 15 layers of the hybrid anti-ballistic material (structure impregnated with a shear thickening fluid in the polyamide fabric) and polyamide fabric, and in consideration of practicality as a body armor, 1 to 15 layers are laminated. Preferably, more preferably, 1 to 10 layers are stacked, even more preferably 1 to 5 layers.
In another aspect, the present invention provides a body armor including a hybrid anti-ballistic material, or a anti-ballistic material in which the hybrid anti-ballistic material and polyamide fabric is laminated to each other. The body armor may be made in the form of a vest to protect only the torso area, but may be made in the form of a short-sleeved T-shirt, shorts or a suit to protect a wider body part.
Hereinafter, the present invention will be described in more detail by the following examples and experimental examples. However, the following examples and experimental examples are intended to illustrate the contents of the present invention, but the scope of the invention is not limited by the examples and the experimental examples.
Example 1 Evaluation of Bulletproof Performance of Hybrid Bulletproof Material
<1-1> Shear Thickening Fluid
300 to 500 nm silica particles, 200 to 300 nm silica particles, 100 to 200 nm silica particles, 50 to 100 nm silica particles, 10 to 50 nm silica particles were dispersed in methanol, respectively, and these were respectively ethylene Redispersed in glycol to prepare shear thickening fluid. As a result of measuring the shear strain and viscosity of each of the shear thickening fluids, it was confirmed that the smaller the particle size, the larger the shear strain, which is the starting point of the shear thickening phenomenon.
<1-2> Preparation of Hybrid Bulletproof Material
Thereafter, the shear thickening fluid was impregnated into a Kevlar fabric made of Kevlar multifilament to have 60% by weight to prepare a hybrid bulletproof material.
<1-3> Bulletproof Performance Evaluation of Hybrid Bulletproof Material
A low-speed drop impact test was performed on a kevlar fabric (control group) composed of only the hybrid bulletproof materials and the kevlar multifilament prepared in 1-1. The impactor weight was 3.4 kg and the test was performed by changing the magnitude of the impact energy by changing the free fall height of the impactor. As a result, in the case of the control group, the impact load increased until just before the impactor was penetrated, but the impact load decreased rapidly after the penetration. However, the hybrid bulletproof materials impregnated with the shear thickening fluid increased the impact load and then decreased rapidly, and then the impact load increased again. I could confirm it. In addition, the maximum impact load was inversely proportional to the size of the silica nanoparticles, and the maximum impact load of the silica particles of 10 to 50 nm was confirmed to be the greatest.
Example 2 Evaluation of Bulletproof Performance of Hybrid Bulletproof Material and Polyamide Fabric Laminate
Experimental Example 1 Preparation of Shear Thickening Fluid
In the same manner as in Example 1, silica particles of 10 to 50 nm were dispersed in methanol, and each of them was redispersed in ethylene glycol to prepare a shear thickening fluid.
Experimental Example 2 Manufacture of Laminate
A hybrid bulletproof material was prepared by impregnating the shear thickening fluid prepared in Experimental Example 1 into a Kevlar fabric made of Kevlar multifilament to have 60% by weight. Then, a Kevlar fabric made of Kevlar multifilament was laminated on one side of the hybrid bulletproof material (FIG. 1). 5, 10, and 15 sheets of such laminates were laminated respectively.
Experimental Example 3 Evaluation of Bulletproof Performance of Laminates
A low-speed drop impact test was performed on the laminate prepared in Experimental Example 2 and the hybrid bulletproof material (control group) impregnated in Kevlar fabric with 60% by weight of the shear thickening fluid prepared in Experimental Example 1. The impactor weight was 3.4 kg and the test was performed by changing the magnitude of the impact energy by changing the free fall height of the impactor. As a result, the impact load of the laminate was larger than the maximum impact load of the control group. It was also confirmed that the impact load of the laminate increased as the number of laminated sheets of the laminate increased. However, the impact load itself was the largest when the number increased from 10 to 15, but the increase in the impact load increased from 5 to 10.
The anti-ballistic material and the body armor of the present invention is expected to be a great help for the safety and convenience of the wearer bar light and excellent ballistic performance.
(1) Hybrid Bulletproof Material Impregnated with Kevlar Fabric with Shear Thickening Fluid
(2) kevlar fabric
Claims (9)
The shear thickening fluid is ballistic material, characterized in that the silica particles in the form of powder is filled in a non-volatile and non-toxic dispersion solvent.
The silica particles are ballistic material, characterized in that the particle size of 10 to 1,000 nm.
The anti-ballistic material, characterized in that the hybrid bulletproof material and the polyamide multifilament laminate are laminated in 1 to 10 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20100033404A KR101282550B1 (en) | 2010-04-12 | 2010-04-12 | body armour using shear thickening fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20100033404A KR101282550B1 (en) | 2010-04-12 | 2010-04-12 | body armour using shear thickening fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20110114008A true KR20110114008A (en) | 2011-10-19 |
| KR101282550B1 KR101282550B1 (en) | 2013-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20100033404A KR101282550B1 (en) | 2010-04-12 | 2010-04-12 | body armour using shear thickening fluid |
Country Status (1)
| Country | Link |
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| KR (1) | KR101282550B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101234525B1 (en) * | 2011-04-29 | 2013-02-19 | 한국생산기술연구원 | Shear Thickening Fluid and method of manufacturing the same |
| CN103359740A (en) * | 2012-03-27 | 2013-10-23 | 浩华科技实业有限公司 | Preparation method of silica shear thickening liquid |
| WO2014088145A1 (en) * | 2012-12-06 | 2014-06-12 | 한국생산기술연구원 | Shear thickening fluid and armor material comprising same |
| KR102078477B1 (en) | 2018-11-06 | 2020-02-17 | 부산대학교 산학협력단 | Shear thickening fluid with high-performance shear thickening behavior comprising polystyrene particles with polyacrylamide on their surfaces and its manufacturing method |
| CN115386338A (en) * | 2022-08-19 | 2022-11-25 | 中山莱圃新材料有限公司 | Ultrahigh-concentration shear thickening fluid and preparation method and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101187652B1 (en) * | 2008-03-10 | 2012-10-11 | 국방과학연구소 | Hybrid bulletproof cloth |
| KR101156127B1 (en) * | 2008-04-24 | 2012-06-20 | 국방과학연구소 | Hybrid sheet and protecting products comprising the same |
-
2010
- 2010-04-12 KR KR20100033404A patent/KR101282550B1/en active IP Right Grant
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101234525B1 (en) * | 2011-04-29 | 2013-02-19 | 한국생산기술연구원 | Shear Thickening Fluid and method of manufacturing the same |
| CN103359740A (en) * | 2012-03-27 | 2013-10-23 | 浩华科技实业有限公司 | Preparation method of silica shear thickening liquid |
| WO2014088145A1 (en) * | 2012-12-06 | 2014-06-12 | 한국생산기술연구원 | Shear thickening fluid and armor material comprising same |
| KR102078477B1 (en) | 2018-11-06 | 2020-02-17 | 부산대학교 산학협력단 | Shear thickening fluid with high-performance shear thickening behavior comprising polystyrene particles with polyacrylamide on their surfaces and its manufacturing method |
| CN115386338A (en) * | 2022-08-19 | 2022-11-25 | 中山莱圃新材料有限公司 | Ultrahigh-concentration shear thickening fluid and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101282550B1 (en) | 2013-07-04 |
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