WO2012018180A2

WO2012018180A2 - Hard bulletproof plate for personal use

Info

Publication number: WO2012018180A2
Application number: PCT/KR2011/005225
Authority: WO
Inventors: 이건철
Original assignee: Lee Kon-Chol
Priority date: 2010-08-02
Filing date: 2011-07-15
Publication date: 2012-02-09
Also published as: KR20120012546A; WO2012018180A3; KR101231616B1

Abstract

The present invention relates to a hard bulletproof plate for personal use which includes: a CNTRPCP layer formed of a carbon nanotube reinforced polycarbonate high molecular weight polymer; a CNTRPUP layer formed of a carbon nanotube reinforced polyurethane high molecular weight polymer, heated and pressure-bonded to the lower surface of the CNTRPCP layer by using a bonding agent; an ultra-high molecular weight polyethylene layer heated and pressure-bonded to the lower surface of the CNTRPUP layer by using a bonding agent so as to absorb impact and prevent a gunshot wound and blunt force trauma; a spall liner layer heated and pressure-bonded to the lower surface of the ultra-high molecular weight polyethylene layer by using a bonding agent so as to prevent the crushing of the rear and the case; a Kevlar bulletproof fabric layer surrounding the abovementioned layers so as to absorb the final impact energy while surrounding the spall liner layer; and a Nomex heat resistant layer surrounding the Kevlar bulletproof fabric layer to block heat transfer to the inside and prevent ignition caused by an accidental fire or an enemy bullet/shell.

Description

Personal Hard Bulletproof Board

The present invention relates to a personal hard bulletproof plate, and more particularly, to a personal hard bulletproof plate that has innovatively improved the bulletproof performance of bulletproof clothing, bulletproof helmets, etc., which are provided to each soldier so as to properly protect the body of each soldier from red coal on the battlefield. It is about.

As is well known, US soldiers in operations in Iraq and Afghanistan are all wearing armored armor with NIJ Level IV bulletproof armor such as Improved Outer Tactical Vest (IOTV) and Combat Integrated Releasable Armor System (CIRAS). For example, the US Army is wearing the latest Kevlar helmet, MSA's Modular Integrated Communications Helmet (MICH) -TC2000 Advanced Combat Helmet (ACH), developed by the US Army and produced in France.

Of course, this helmet is easier to attach to night vision and communication equipment than the previous PASGT bulletproof helmet. Instead of separating the heads of the heads, they have multiple cushions and the chin strap also has the advantage of wearing a four-point chin strap like the conventional safety helmet for bicycles. In the prone shooting position, the entire helmet rotates forward and the front part is too low to narrow the watch, striking the scale that is higher than the barrel axis of the M-16 type rifle and struggling when shooting. It is a new design to solve various problems.

However, it has been pointed out that the overall defense area has become smaller and more head injuries have increased since the helmet began to be worn.

In the case of the ROK military, the troops sent to Iraq are polyethylene-based bulletproof fibers and bulletproof equipment using Dyneema UD produced by DSM company in the Netherlands. I am wearing a domestic Kevlar body armor that mimics the PASGT defense suit.

In Dyneema UD, UHMWPE (Ultra High Molecular Polyethylene), UD is an abbreviation of the arrangement of fibers in one direction (Uni-Directional), which is a bulletproof fiber of the same ultra high molecular weight polyethylene series produced by Honyewll, USA. It has almost the same performance as Spectra.

Unlike Kevlar's method of weaving fabrics with fibers and combining them as many layers as needed, Dyneema UD's processing method involves arranging a large number of Dyneema UD fibers in one direction and then again Arrange in the other direction, repeat the arrangement in another direction, and apply heat to make the fibers stick together to form a non-woven fabric that can withstand the external force applied in all directions.

In the simplest case, in the case of bulletproof plates inserted into the front and back of the body armor worn by the troops stationed in Iraq by our troops, the Dyneema UD fibers are arranged in one square to form a layer, and the next layer is arranged in the other direction Layers can be arranged in a different way so that the layers are stacked together and then applied to each other by applying heat and pressure so that the resulting bulletproof board does not have any weakness in a particular direction.

In addition, the new military bulletproof helmet is also made using Dyneema UD fiber, and the manufacturing principle is the same as the bulletproof plate, except that the material is placed on the outer mold of the bulletproof helmet shape and pressed to the inner mold to apply heat. .

On the other hand, the red coals that each soldier may be exposed to the greatest risk include the 7.62 x 39 mm M-43 and 7.62 x 54 mm R (Russian) bullets illustrated in FIG.

First, look at the characteristics of the 7.62 x 39 mm M-43 bomb, unlike the Western-produced ammunition due to the lack of lead and copper, which are classified as strategic resources, which is a problem for Russia and other former Soviet Union countries that produce it. Instead of soft iron, the core is made of brass shell so that the inside of the total steel and the steel wire are not damaged, and the case of the casing is made of soft iron instead of brass due to the lack of brass due to the lack of copper resources. Unlike the ammunition with brass casings produced in the West, it is not waterproof only by applying pressure, so to reduce the loss of ammunition due to water or moisture, lacquer paint is applied to the shelled part of the shell. .

Therefore, if the bullet core is soft iron, not lead, the impact of the unprotected human body at high speed is less likely to cause the bullet to break and cause less injury than the Western ammunition. Breaking through without breaking is higher than Western ammunition.

The 7.62 x 54mm R ammunition for the Russian Mossin-Nagant rifle developed in the 19th century was used as ammunition for the Mossin-Nagant rifle and SVT-40 semi-automatic rifle until World War II, but it protrudes into the bottom of the casing with old ammunition. The rounded rims do not have round rims these days, requiring more complicated munitions than rim-loaded bullets and rimless munitions that are easy to fire in guns, but the US 30.06 (7.62mm caliber M-1903 rifle and M-1 rifle). Ammunition of the M-43, making it possible to make up for the lack of power of the M-43. It is used as ammunition for the Dragunov SVD and PKM general machine guns.

The U.S. Army is wearing the Army's new IOTV body armor, which is classified as Hard Armor with Soft Armor made of multiple layers of Kevlar KM2 woven bulletproof fabric. Two Arms Protection Inserts are inserted into the front and back, 10 "x 12", 2 x 5 "x 8" on each side, and 4 in total. The attached handle is hidden and weighs as heavy as 35 lbs (35 lbs, about 16 kgs) for large-size wearers weighing approximately 90 kg in height of about 6 feet.

If equipped with both Soft Armor and Hard Armor, it will protect the wearer from direct hits of the Soviet Union's 7.62mm ammunition, and Soft Armor alone will only protect 9mm pistols or grenades. The defense level is known to be almost the same as that of the nylon body armors of M-52, M-55, and M-69 used in the Korean War and Vietnam War, or the PASGT Kevlar body armor that replaced them.

The body armor that the ROK military supplied to the front soldiers in part was a replica of the PASGT body armor produced in Korea. The original US military PASGT body armor had a bulletproof capability (only a pistol defense if new) that is hard to be classified as NIJ Level. Our Marine Corps has some body armor that has a pocket on the front to hold a 10 "x 12" aluminum oxide bulletproof board, but several layers of Kevlar (or Twaron) bulletproof fabric are made without a bulletproof body like PASGT. When bullets and grenades debris are impacted on body armor containing only soft armor, severe deformations occur on the rear of the bulletproof panel, and this deformation causes the body to break into a blunt force trauma, or baseball bat. Injuries from being hit by blunt objects can cause large, severe bruises when the trauma is weak. This may end up causing severe trauma, which can lead to broken ribs, damage to internal organs due to impact, or severe broken ribs, which can damage the heart or the large blood vessels leading to the heart and lungs, leading to death. .

In order to prevent this, the trauma pad is simply made of a shock absorbing material to have a bulletproof performance, and the military is used as a trauma pad having a bulletproof performance as a hard armor plate. Are classified as).

In addition, the ESAPI (Enhanced Small Arms Protection Insert) bulletproof plate, which is classified as a hard armor plate, is made of aluminum oxide ceramic, etc., and the AP (Armor Piercing) bullet, that is, the inner core of the bullet is steel Defensive armor can be defended.

When a high speed bullet hits the front of the ceramic bulletproof plate, a very hard ceramic bulletproof plate breaks the bullet, but since the ceramic is also a brittle material, the bulletproof plate is broken together and absorbs a large part of the impact energy, but it is about 1 to 2 shots. It is broken by the bullets and is incapacitated.

In the case of a bulletproof plate, there is a bulletproof plate made by compressing a bulletproof fiber made of ceramic and a bulletproof fiber. A bulletproof plate made by compressing a plurality of layers of woven fabrics or nonwoven fabrics of bulletproof fibers is maintained even when multiple bullets are hit.

In order to make up for the shortcomings of ceramic bulletproof boards, it is used by the U.S. Army to supplement the shortcomings easily described above by attaching multiple layers of woven fabrics with bulletproof fibers on the back.

However, it was known in the current Iraq war and Afghanistan war that it could not defend multiple rifle bullets, and two or three M-43 ammunitions fired from AK-47 and AKM rifle also killed IOTV soldiers. However, if you were caught in an explosion of an Improvised Explosive Device (IED) explosion, your arms or legs would fall off because your body was relatively well protected, even if you were saved.

And even if the Kevlar bulletproof fabric is supplemented with multiple layers of bulletproof material on the back of the ceramic bulletproof material, the thin bulletproof fabric on the back will barely fall off when the ceramic material breaks on the first or second bullet that impacts the bulletproof board. In this state, if you continue to be exposed to rifle bullets without replacing the bulletproof plate, bullet stretching will occur momentarily when the bullet hits the bulletproof fabric. Is broken and penetrates.

In addition, the AN-94 ABAKAN rifle, which had become a Russian rifle to replace the AK-74, was capable of two-point firing at 1,800 rounds per minute. The Hecklet Koch G-11 bulletless rifle was also capable of very fast three-point firing, so if these bullets were fired into bullet-proof fabrics, they could easily penetrate through shear stretching. .

The present invention was created in view of the above-mentioned problems in the prior art as described above, the carbon nanotube-reinforced polyurethane polymer, carbon nanotube-reinforced polycarbonate polymer polymer reinforced with specific properties using carbon nanotubes It effectively combines Dyneema UD or Spectra fiber bulletproof nonwoven fabric and Kevlar bulletproof fabric, which is ultra high molecular weight polyethylene, to improve the anti-ballistic performance, mechanical properties, and shock absorption ability. Its main purpose is to provide a personal hard bulletproof plate that can be raised to more reliably protect the soldier's body from red coal.

The present invention as a means for achieving the above object, CNTRPCP layer made of carbon nanotube-reinforced polycarbonate polymer; A CNTRPUP layer made of a carbon nanotube-reinforced polyurethane polymer polymer bonded to the bottom surface of the CNTRPCP layer by heat pressing through a bonding agent; An ultra-high molecular weight polyethylene layer bonded to the lower surface of the CNTRPUP layer by being heated and pressurized with a binder and absorbing an impact to prevent a gunshot wound and a blunt force trauma; Spline liner layer (Spall Liner Layer) is bonded to the lower surface of the ultra-high molecular weight polyethylene layer by heat and pressure bonding to prevent the back and scab fracture; A Kevlar ballistic fabric layer wrapped in a form surrounding the layers so as to surround the spooler layer and finally absorb impact energy; It provides a personal hard bulletproof board (Hard Armor) consisting of a Nomex (Homex) heat-resistant fabric layer is provided to block the heat transfer to the inside in the form of wrapping the Kevlar bulletproof fabric layer again and to prevent burning by misfire or red coal. do.

In this case, the ultra-high molecular weight polyethylene layer is infiltrated in the form of filling the D3o shock absorbing material tightly by applying temperature and pressure between Dyneema UD or Spectra fiber nonwoven fabrics stacked in multiple layers to obtain a sufficient thickness. It is also characterized by being molded to have.

In addition, the spooler layer is characterized in that it consists of a Kevlar bulletproof fabric laminated in several layers, and the shock absorbing D3o infiltrated between the Kevlar bulletproof fabric.

In addition, by using the ultra-high molecular weight polyethylene layer among the hard armor constituent layers of the layered hybrid armor material for personnel armor for ballistic protection, having a ballistic, sword, anti-fog, and shock absorption performance Create Soft Armor. This ultrahigh molecular weight polyethylene layer is susceptible to heat, so a Nomex heat resistant fabric is used again as a packaging material to protect it.

In addition, a hard bulletproof board made of the layered hybrid armor material for personnel armor and an ultra high molecular weight polyethylene layer, which is one of the layered hetero armor materials, are wrapped with a Nomex heat resistant fabric. Armor is based on the type of outer vest made of 1000 Denier Cordura Kotura nylon fabric, with these two types of bulletproof plates, or one of the two. It is inserted into one to form a body armor.

According to the present invention, by combining the body armor, bulletproof helmet, etc. worn by each soldier to have a structural bond with a layered heterogeneous armor to reduce the impact energy of the red coal step by step and at the same time prevent the fragments by the bullet to penetrate the wound, By suppressing the back can be obtained the effect of protecting the body of each soldier as safely as possible.

Figure 1 is an exemplary photograph of 7.62 x 39 mm M-43 and 7.62 x 54 mm R (Russian) ammunition of the appropriate country ammunition for explaining the present invention.

2 is an exemplary diagram of 3-D Random Orientation of carbon nanotubes in a bulk polymer matrix applied to the present invention.

3 is an exemplary structural diagram of a carbon nanotube-reinforced polyurethane polymer polymer applied to the present invention.

4 are exemplary structural diagrams of a personal hard armor plate according to the present invention and a soft armor plate to be introduced next.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

The present invention targets a composite material using nanotechnology, that is, a nanocomposite material.

Here, the nanocomposite material is a material in the field of unit length of 1 Nano-meter = 10 ^-9 , which is also an area where general physics does not apply well.

Therefore, composite materials in this field, that is, nanocomposites, are a new word that is modified from FRP (Fibers-Reinforced-Polymer), an English abbreviation for general composite materials, that is, micro composite materials (NRP, Nanoparticles or Nanofibers-Reinforced-Polymer). It is called).

Nanocomposites, like microcomposites, also include a reinforcement material called Nanofiber and a polymer called the bulk polymer matrix (Bulk Polymer Matrix) that surrounds a significant portion of the NRP.

Nanoparticles added to the nanocomposites as reinforcing materials include nanotubes and nanoclays, and nanotubes include carbon nanotubes and boron nanotubes.

In the present invention, carbon nanotubes are used. Carbon nanotubes are derived from C ⁶⁰ particles, which are similar to the shape of a soccer ball, which is called Bucky Ball in the field of material chemistry, and synthesizes hemispherical C ⁶⁰ particles on one side. After long stretch, the other end is closed like a hemispherical C ⁶⁰ particle.

These carbon nanotubes are classified by their appearance only, so that the surface walls are separated by one layer, that is, single-walled nanotubes (SWNT), and carbon nanotubes are continuously contained in the carbon nanotubes like onions. Multi-Walled Carbon-Nanotubes With multi-walled carbon nanotubes, which have almost no friction between each wall, the inner carbon nanotubes can be easily removed from the outer carbon nanotubes. Single-Walled Nanotubes Bundle, which consists of several layers of carbon nanotubes with a single layer attached to the wall, among which one can take advantage of the excellent mechanical properties of carbon nanotubes. Tubes (Single-Walled Carbon Nanotubes).

The carbon nanotubes can be added to polyurethane, which is a bulk polymer matrix, to make light and excellent mechanical properties. Polyurethane has been used as a material for making transparent bulletproof equipment together with polycarbonate and acrylic for a long time.

Polycarbonate is a material that is hard, hard to scratch (protected by special coating) instead of high hardness, and is less brittle than glass but easily brittle and brittle. Because it is high, it is used as armor material of tank and bulletproof plate of body armor worn by soldiers, but when high speed shells or bullets are impacted, the ceramic plate itself is broken as a brittle material and absorbs impact energy instead of breaking them with high hardness. .

After all, in the near future, polyurethane will replace polycarbonate, which is now the representative transparent BTS material, and in order to use the excellent ballistic performance of polyurethane together with the excellent mechanical properties of carbon nanotubes described above, Add a certain amount of tube and mix it well so that the carbon nanotube particles are well dispersed throughout the polyurethane. This makes the mechanical properties surprisingly excellent. One disadvantage is that the transparent carbonaceous material is lost.

In the present invention, transparency is beyond the scope of the present invention, and it is to obtain surprisingly excellent mechanical properties obtained through such a combination.

In general, fiber-reinforced composite materials (Fibre-Reinforced-Plastic) is a synthetic material that is reinforced with mechanical properties of the fiber material is a material having a strong weight, that is, excellent mechanical properties, light weight.

In this case, the representative fibers used as reinforcing materials are glass fibers, carbon fibers, aramid fibers, and the like, and plastics called matrix, such as epoxy, FRP is combined with vinylester and thermosetting polyester resins. Thermoplastic plastics, which are more suitable for the manufacturing process of FRP, are mainly used as plastics used as a matrix.

Recently, to simplify the process of arranging fibers and applying heat and pressure to invade molten plastic, pre-arranged fibers called Prepreg and plastics that are not completely hardened are made of wide tapes to make intermediate products on vinyl paper. According to the shape and the direction of the fiber arrangement required for the production, cut a lot of scissors or a knife and use only a lot of methods to remove and paste.

As mentioned earlier, these materials are used in the manufacture of modern aircraft, spacecraft, modern warships, and Formula-1 racing cars, which are light in weight and require excellent mechanical properties.

Thus, in FRP, the volume fraction of fiber in the total volume is large. However, in the polymer polymer reinforced with nanoparticles or nanofibres-reinforced-polymer (NRP) nanoparticles or nanofibers, in particular carbon nanotubes according to the present invention, to which nano-size reinforcement materials are added, not micro-size, Due to the size difference between the fiber reinforced materials inserted together, the specific surfaces of the carbon nanotubes have much larger specific surfaces than the micro fibers.

Because of this, a new layer with a negligible volume around the nanofibers embedded in the bulk polymer, i.e., the material itself is the same as the bulk polymer polymer, but its mechanical properties are improved by the excellent mechanical properties of the nanofibers. A non-bulk interphase intermediate layer is created.

As such, in the case of carbon nanotube-reinforced polymers (CNTRP: Carbon Nanotubes-Reinforced-Polymer), non-bulk interphase has a great effect on the mechanical properties of the entire CNTRP. In the present invention, one CNTRP layer layer or two It includes CNTRP Layers layers or other Carbon Nanotubes-Reinforced-Material Layers, which have a non-negligible volumetric ratio of non-bulk interphases surrounding the inserted carbon nanotubes.

In particular, the present invention uses a carbon nanotube-reinforced polyurethane polymer (CNTRPUP: Carbon Nanotubes-Reinforced-Polyurethane-Polymer) as the main configuration, and the reason why the polyurethane is selected as the bulk polymer is widely used as a transparent glove material. Because it has better ballistic performance than polycarbonate, it is composed of one layer of wall described above, and considering the amazing mechanical properties of carbon nanotubes separated from each other, it is composed of one layer of wall and separated carbon nano. When the tubes are scattered evenly pointing in various directions in the polyurethane, which is a bulk polymer, homogeneous antiballistic performance in all directions as shown in FIG. 3 due to the same effect as a process similar to the theoretical 3-Dimensional Random Orientation Process as shown in FIG. Ballistic material with high mechanical properties It will be made available on the target.

Above all, the present invention resides in the structural combination of protective equipment that can enhance the personal protection of each soldier.

To this end, the present invention is carbon nanotube-reinforced polyurethane polymer (CNTRPUP: Carbon Nanotubes-Reinforced-Polyurethane-Polymer), carbon nanotube-reinforced polycarbonate polymer (CNTRPCP: Carbon Nanotubes-Reinforced-Polycarbonate-Polymer), ultra high molecular weight Excellent anti-ballistic performance and mechanical properties of ultra high molecular weight polyethylene (UHMWPE), the bulletproof fabric woven from the aforementioned Dyneema UD or Spectra fibers and the latest Kevlar XP. Body armor with D3o shock-absorbing material, front and rear bulletproof pads, shoulder and upper arm protection pads, elbow protection pads, thigh protection pads (for protecting the thigh's Main Artery aorta), knee protection pads, bulletproof helmets, bulletproof soles of combat boots, etc. It is to be prepared.

Here, D3o is a material (Non-Newtonian Fluid) developed by a material research institute called D3o Lab, UK, which has a very good shock absorption ability. After melting the D3o, it is laminated with enough Kevlar ballistic fabric. Invading the layers between layers and the fibers and the fibers in Kevlar bulletproof fabrics with high pressure so that the molten D3o is sufficiently filled and dried, excellent shock absorption in addition to the ballistic performance as a spall liner You can have the ability.

In particular, the first point to be considered in the present invention is to prevent the bulletproof targets from being easily incapacitated by the enemy's ammunition 1 or 2 shots. In other words, when a high-speed bullet hits the bulletproof plate, the hard part of the bulletproof plate (Hard Part) It absorbs the impact energy effectively without considering this easily penetrating (think bullets are stuck in the bulletproof plate), and the remaining energy is absorbed again by ultra high molecular weight polyethylene (UHMWPE) layers such as Dyneema UD and Spectra behind the bulletproof plate. The impact energy of is finally absorbed by the Spall Liner layer made of Kevlar XP ballistic fabrics, and the remaining impact energy is lighter to the ultra high molecular weight polyethylene (UHMWPE) layer (Dyneema UD or Spectra Spectra). The final force is absorbed in the part, eventually causing the Brunt Force Trauma to occur in the body of the soldier wearing it. While we may not be entirely prevented thereby minimized.

That is, as shown in Figure 4, the layered heterogeneous armor according to the present invention includes a CNTRPCP layer 100 forming the surface of the protective equipment of each soldier directly hit by red coal.

The CNTRPCP layer 100 is made of carbon nanotube-reinforced polycarbonate polymer as described above.

The CNTRPUP layer 200 is bonded to the lower surface of the CNTRPCP layer 100, that is, the inner side thereof when worn.

In this case, the CNTRPUP layer 200 is made of a carbon nanotube-reinforced polyurethane polymer as described above.

In addition, the CNTRPCP layer 100 and the CNTRPUP layer 200 is preferably firmly bonded in a form that is heated and pressurized after applying the adhesive (adhesive).

In addition, an ultrahigh molecular weight polyethylene layer 300 is bonded to the bottom surface of the CNTRPUP layer 200.

The ultra-high molecular weight polyethylene layer 300 is formed in a form in which D3o is invaded in Dyneema UD or Spectra, and is invasive while applying a high pressure so as not to form a gap.

Further, a spliner layer 400 is bonded to the lower surface of the ultra high molecular weight polyethylene layer 300.

The spooler layer 400 is for shock absorption, in which D3o is invaded in a Kevlar bulletproof fabric (Kevla XP).

Kevlar bulletproof fabric is applied to the structure of the present invention consisting of four layers in this manner to form the entire structure of the Kevlar bulletproof fabric layer 500, and finally wrapped with a heat-resistant fabric (Nomex) to have a heat resistance heat-resistant fabric layer By constructing 600, the hard armor plate of the present invention is completed.

Subsequently, the ultra high molecular weight polyethylene layer 700 basically uses the ultra high molecular weight polyethylene layer 300 in the hard armor plate made of the layered heterogeneous armor described above as a soft armor. UHWPE) Dyneema UD or Spectra (UHWPE) fiber is laminated in four layers of bulletproof nonwoven fabric of specific thickness made by applying high temperature and then absorbed by D3o. It is formed to have a specific thickness in the form of invading while applying a high pressure so as not to occur.

The ultra-high molecular weight polyethylene layer 700 is heat-packed with a Nomex heat-resistant fabric (600) used as a packaging material for the heat resistance performance of the layered armored armor hard bulletproof board (Hard Armor) in order to have heat resistance in a form of packaging. By constructing the fabric layer 800, a soft armor panel is made.

Soft bulletproof panels (Soft Armor) is formed by overlapping 4 to 5 sheets of soft bulletproof panels (Packed by the heat-resistant fabric layer 800),

The outer side is flameproofed to protect and protect the hard armor and soft armor, while the inside is waterproofed and sweated with Gore-Tex or DINTEX. The outer vest 900 is made of 1000 Denier Cordura cordura nylon fabric, and both hard and soft armor can be stored or worn depending on the situation. Holds and wears one type of bulletproof plate.

Details of each layer of such a structure will be described later.

More specifically, in the present invention, hard armor, that is, the hard portion of the bulletproof plate does not use a ceramic material that is hard but easily broken, and has a low ballistic capacity but a higher hardness and higher mechanical strength than CNTRPUP. Carbon nanotubes-Reinforced-Polycarbonate-Polymer (CNTRPCP), a bulletproof material, causes red coal to impact first, causing the bullet to be damaged and at the same time losing some impact energy.

Then, broken bullets or fragments of bullets with lowered impact energy will impact the CNTRPUP with lower hardness, ie softer material, but with higher ballistic resistance, which in turn regains the speed and speed of the fragments. Reduces the impact energy and reduces the speed and impact energy of the damaged bullet or bullet fragments in the layer in which the D3o shock absorbing material is again infiltrated with Dyneema UD or Spectra spectra nonwoven fabric, and finally the D3o shock absorbing material in multiple layers of Kevlar XP ballistic fabric. To minimize the invasive layer.

If a bullet with a high impact energy such as an armored shell impacts the bulletproof plate, the bombardment absorbs D3o in a UHMWPE layer such as Dyneema UD or Spectra Spectra, that is, an ultra high molecular weight polyethylene layer, through the stepwise reduction and deceleration of the impact energy described above. Soft bulletproof board inserted behind the bulletproof board by stopping the bulletproof and shock absorbing layer invading the sufficient amount of D3o shock absorbing material in the bulletproof and shock absorbing layer invading the material and the Kevlar bulletproof fabric layer bonded to the back of the layer. The impact energy applied to the armor can be minimized.

In particular, a sufficient amount of multiple layers of UHMWPE layer, ie ultra high molecular weight polyethylene layer 300 (such as Dyneema UD or Spectra), or multiple layers of Kevlar bulletproof fabric layers, are invasive (pre-melted D3o shock absorbing material Not just immersing the ballistic fabric layers, but applying high pressure to almost eliminate the gap between the ballistic fabric layer and the D3o shock-absorbing material, and a new composite material with a thickness sufficient to exhibit this shock-absorbing performance). It is desirable to have a bulletproof and shock absorbing material layer capable of preventing both the brute force trauma and the bullet wound and the blunt force trauma by absorbing performance. It is one of the main features.

Thus, each bulletproof fabric made to the required size is again packed with Kevlar bulletproof fabric coated with a binder (glue) to prevent breakage during normal wear, and finally heat-proof inside. It is desirable to be wrapped in a heat resistant fabric (Nomex) to prevent flaming due to misfire or enemy weapons (Flame Proof). Finally, a Hard Armor is made that can protect soldiers wearing bulletproof gear from fragments scattered during enemy ammunition, grenades and mortar explosions, which is the object of the present invention.

On the other hand, in the actual situation, in addition to the layered armor armor hard bulletproof board (Hard Armor) that is the purpose of the present invention to protect the hard armor (Hard Armor) cover, or to support the bulletproof armor bulletproof (Hard Armor) invented above The performance can be enhanced, if the Hard Armor is incapacitated by red coal or debris, or the Hard Armor is not incapacitated, but it is in the inner part by red coal and debris. If a large deformation occurs, such as a large bulge, or a large impact energy is applied to the hard armor of the bullet-dissimilar bullet-proof material due to the impact of red coal and debris, between the hard armor and the wearer's body Bullets passing through the hard bulletproof board or broken fragments of the hard armor plate may be allowed to travel to the wearer's body. It reduces the wearer's injury due to partial deformation of the inner surface of the hard armor plate, and prevents the large impact energy applied to the hard armor plate from being transmitted to the wearer's body. Consideration should be given to a soft armor that can absorb a portion of the. A specific thickness made of ultra high molecular weight polyethylene (UHMWPE) layer 300, which is one layer of a hard armor plate of layered armor armor, invented above, ie Dyneema Dyneema UD or Spectra spectra fibers. Non-woven fabric and a sufficient amount of D3o impact-absorbing material re-use the mixed layer of reinforced concrete as a soft bulletproof sheet.This ultra-high molecular weight polyethylene layer is one of the hard armor as described, but it is a soft armor. It has enough flexibility and light weight to be used as a product. Ultra High Molecular Weight Polyethylene (UHMWPE) fibers have about 40% better tensile strength than Kevlar fibers, have very low hygroscopicity and significantly higher wear resistance and lighter weight. In addition,

This ultrahigh molecular weight polyethylene (UHMWPE) fibrous nonwoven fabric, unlike Kevlar fibrous fabrics, has a strong resistance to being punctured by sharp weapons or cut by swords, and has excellent proof and anti-stable performance.

It is particularly characterized by the fact that it is not easily pierced or cut through enemy rifle (North Korean representation of detected rifle) in hand-to-hand combat.

In addition, special operations units use various swords, crossbows, axes, etc., in addition to firearms attached to silencers, silencers, etc. Quietly kills soldiers and servicemen, while traditional Kevlar lacks defenses against these weapons, but Soft Armor consists of a layer of ultra high molecular weight polyethylene (UHMWPE) consisting of Dyneema Dyneema UD or Spectra spectra nonwovens and D3o shock absorbers ) Will also be able to defend against these special warfare weapons.

Therefore, it is possible to manufacture a device that is lighter than Kevlar and has excellent bullet proof performance and stab proof performance.

However, as can be seen from the manufacturing method of ultra high molecular weight polyethylene (UHMWPE) bulletproof nonwoven fabric, the soft bulletproof plate (Soft bulletproof board) is a method that can compensate for the weakness of ultra high molecular weight polyethylene (UHMWPE) bulletproof fibers in high temperature environment because the resistance to high temperature is very low. Armor) It is an excellent heat-resistant fabric used for space suits, fire suits, etc. It was used to wrap a hard armor made of layered heterogeneous armor, to block heat transfer to the inside, and to prevent burning by fire or red coal. Nomex (Nomex) heat-resistant fabric layer 600 is used as a packaging material of the soft armor (Soft Armor).

In addition, the ultra-high molecular weight polyethylene (UHMWPE) series Dyneema Dyneema UD or Spectra spectra bulletproof nonwoven layer manufactured to a specific thickness is overlapped as many times as necessary, and then the D3o shock absorbing material described above is sufficiently infiltrated to provide specific bulletproof, anti-skid, anti-fog and shock absorbing properties By producing soft bulletproof panels, the weight of the Soft Armor is reduced as much as possible while providing the necessary bulletproof, sword, anti-fogging, shock-absorbing performance, i.e. resistance to all situations that may be applied from the outside. By packaging with a Nomex heat resistant fabric layer to have a resistance, it can have excellent protection characteristics even in a high temperature environment.

In particular, instead of making a layer of ultra high molecular weight polyethylene layer soft armor and wrapping it in a single layer of Nomex fabric, D3o shock-absorbing material on 4 layers of Dyneema UD or Spectra spectra bulletproof nonwoven layer made of specific thickness Bulletproof panel (bulletproof, swordproof, anti-fogging, shock absorbing) made of Nomex fabric for each sheet (800), if 4 ~ 5 sheets of ultra high molecular weight polyethylene layer bulletproof panels are overlapped, the overall soft armor If built in, it can have great protection characteristics.

In addition, if necessary, moisture such as internal sweat emanates, prevents moisture, moisture, etc. caused by external rain and snow, and helps maintain body temperature even at low temperatures below tens of degrees. Gore-Tex Various types of outer vests made of 1000 Denier Cordura cordura nylon fabric with inner side of the furnace are made, and there are hard armor and soft armor, and seams are also Reinforced with Gore-Tex sealing tape. Gore-Tex can be replaced by DINTEX, a lower cost alternative that has almost the same properties to reduce production costs. Among these various types of outer vests, the outer surface of the outer tactical vest vest is a vest with handguns, bullets, grenades, radios, maps, first-aid kits, and combat sheaths. According to the global trend, which combines a load bearing platform that binds Combat Knife Sheath, etc., several 1 inch (2.54 cm) or thick nylon webbings that meet the military and police standards of each country are spaced at regular intervals. PALS (Pouch Attachment Ladder System) sewn at 1 inch intervals is attached. The PALS can be equipped with military storage pouches (described above) with MOLLE (MOdular Lightweight Load Carrying Equipment).

Meanwhile, the production method of each bulletproof material is as follows.

In order to make a hard armor made of layered hybrid armor material for personnel armor in which each bulletproof material is arranged in layers, a mold of bulletproof equipment-hard armors-is made.

The molds must be made separately according to the thickness of each material to be laminated, and each material is formed by extrusion molding with different extrusion machines using the molds, and then arranged in layers with each other in a mold for the final required shape. Pressure is then applied to create the desired bulletproof equipment-Hard Armor-made of Layered Hybrid Armor Material For Personnel Armor.

A binder (adhesive) is applied between each layer just before final molding to ensure that each layer adheres tightly to each other.

At this time, the CNTRPCP (Carbon Nanotubes-Reinforced-Polycarbonate-Polymer) layer 100 is first pulverized polycarbonate pellets (polycarbonate intermediate material produced in a synthetic resin factory is made into pellets and sold in bags). After making a state, add a predetermined amount of carbon nanotube particles and mix well so that the carbon nanotube particles are evenly dispersed between the polycarbonate powders.

In this state, each of the unmixed materials, i.e., a predetermined amount of polycarbonate powder and a certain amount of carbon nanotube particles, are mixed in a cylindrical container having a moderate inclination which can be decelerated and stirred through a long cylindrical vessel having drive shafts at both ends. After injection, the cylindrical container is slowly rotated so that the two materials are mixed well enough, that is, the carbon nanotube particles are dispersed well between the polycarbonate powders if they have different orientations, and then preheated with the exhaust in advance. Put it in the inlet.

In addition, the injected carbon nanotubes + polycarbonate powders mixture melts the polycarbonate powder inside the extruder and is mixed again by the rotating screw inside the extruder and pushed to the mold inlet.

In this way, the particles of carbon nanotubes are oriented in all directions and are spread evenly over the polycarbonate, which is a bulk polymer, that is, similar to the theoretical 3-Dimensional Random Orientation Process. It is possible to produce CNTRPCP with homogeneous performance.

Next, carbon nanotubes-reinforced-polyurethane-polymer (CNTRPUP), which is the most bulletproof material in the present invention, may be manufactured as follows.

In the same manner as in the manufacturing method of CNTRPCP, finely grind or grind the intermediate polyurethane material in advance, add a predetermined amount of carbon nanotube particles, and mix well, and then remix with a screw in an extrusion molding machine. The CNTRPUP is finally produced by producing tube particles that are directional in all directions and are uniformly scattered inside the bulk polymer polyurethane, similar to the theoretical 3-Dimensional Random Orientation Process shown in Figure 2. Ensure homogeneous performance in all directions.

In addition, the ultra high molecular weight polyethylene (UHMWPE) layer forms a ballistic layer using a sufficient thickness of Dyneema Dyneema UD or Spectra spectra fiber bulletproof material and a sufficient amount of D3o impact absorbing material.

At this time, the ultra high molecular weight polyethylene (UHMWPE) materials have excellent mechanical performance at room temperature, that is, strong materials with a tensile strength of about 2.4 GPa, and have about 40% or more superior mechanical properties than the latest Kevlar fibers.

The only difference between the Dyneema Dyneema UD and the Spectra Spectra is that the former is produced by DSM in the Netherlands and the latter is produced by Honeywell in the United States, with almost the same mechanical properties.

The method of making a bulletproof material using these ultra high molecular weight polyethylene (UHMWPE) fibers is a Kevlar fiber that is not easily melted or burned, but is not overlapped enough to obtain the required bulletproof performance after weaving with a loom like Kevlar bulletproof fiber. Unlike the low melting point, instead of weaving with a weaving machine, instead of weaving the fibers in one direction, heat is applied to the non-woven fabric (Felt) to make the fibers stick together so that they do not have weakness in external force in a specific direction. A layered layer of fibers can be arranged in various directions and then pressurized and heated to produce a ultra-high molecular weight polyethylene (UHWMPE) nonwoven layer with a specific thickness of bulletproof, anti-skid, and anti-foaming performance. A sufficient amount of D3o impact-absorbing material is infiltrated into this ultra-high molecular weight polyethylene (UHWMPE) nonwoven layer with bulletproof, sword-proof, and anti-fog properties of specific thickness to provide bullet-proof, gum-proof, anti-fog, and shock-absorbing performance of certain thicknesses. Ultra High Molecular Weight Polyethylene (UHWMPE) Layers with High Performance and Impact Absorption

However, as will be discussed later, the fatal drawback of this ultrahigh molecular weight polyethylene (UHWMPE) layer is its weakness in heat.

On the other hand, the bullet-proof layer, the spall liner (spall liner) and the shock absorbing layer using the Kevlar bullet-proof fiber will be described as follows.

Kevlar fiber woven fabrics are piled up to have the necessary anti-ballistic performance and then infiltrate a sufficient amount of D3o shock-absorbing material to form a Spall Liner layer with bulletproof and shock-absorbing performance, which ensures the bulletproof plate It prevents the fragments of the bulletproof plate caused by the fragmentation of the bullet which is not blocked or the reflection of the impact energy, and the fragmentation of the bulletproof plate caused by the fracture of the scab. It also serves to prevent injury.

This suggests that soldiers wearing minimal force trauma (Blunt Force Trauma) with minimal impact energy, which are not sufficiently reduced even in the preceding bulletproof layers, in accordance with the "conceptual reduction of impact energy", an important concept pursued by the present invention. Minimize.

Finally, place the above four materials on the mold of the finished product, apply a bonding agent (adhesive) between the layers, and apply the proper heat and pressure to the mold so that the four layers are completely attached. It is possible to manufacture a layered heterogeneous armor.

Next, a new concept of soft armor to be inserted into various types of outer vests made of the above-described specially treated 1000 Denier Cordura cordura fabric together with the hard armor described above is It can be prepared as follows. Depending on the circumstances, the Hard Armor and the Soft Armor may be used together in the outer tactical vest or casual outer vest or any other type of outer shell that can be worn in casual wear. It may be housed and worn, or only one of the two types of bulletproof plates may be housed and worn in one of the two types of envelopes described above.

Here, soft armor is a layered hybrid armor for bulletproof unlike the previous soft armors made by stacking bulletproof fabrics made of Kevlar and Twaron fibers. Ultra High Molecular Weight Polyethylene (UHMWPE) layer used as one of the layers of Hard Armor made of Material For Personnel Armor, ie Dyneema Dyneema UD or Spectra Spectra nonwovens and D3o impact absorbing material blended like reinforced concrete The used layer again. This ultra-high molecular weight polyethylene layer is used as a layer of hard armor made of layered heterogeneous armor, but it is flexible enough to be used as a soft armor. , And shock absorbing properties.

Soft bangtanpan into the latest IOTV Serge Army (Soft Armor) is a former Serge PASGT Kevlar material is Kevlar Kevlar 29 did not create a bullet-proof fabric, the US Army 75 ^th Ranger 75 Commando Regiment was deployed in the 1990s Somalia and Kosovo Made from Kevlar Kevlar KM2 bulletproof fabric, the Soft Armor material of the Ranger Body Armor.

Of course, the Kevlar Kevlar KM2's Soft Armor is actually able to defend against the smallest pieces of 9mm pistol and fragmentation grenades, but the capital of Somalia on 3 October 1993. Ranger crews used to arrest key figures under Warlord Mohamed Paraidd in Russia avoided wearing hard armor due to the weight problems of hard armors made of aluminum oxide ceramics. It also caused cases.

For a long time, armies in the United States and other countries have defined the concept of Body Armor as protection from ricochets, grenades, mortars, etc., rather than blocking enemy rifle bullets. The war has changed, the threat from enemy bullets has increased, and the hard bulletproof bulletproof board of the Trauma Pad, which was developed to prevent the Blunt Force Trauma, has developed with the development of material science and technology such as textile technology. (Hard Armor)

Nevertheless, the Soft Armor still only provides protection against pistol and grenade fragments, and whether it's an old ballistic nylon bulletproof vest or a Kevlar bulletproof vest, swords, ice drills and arrows. It does not have enough Stab Proof for the back.

Because of this, the US military developed an auxiliary device that inserted a head with a ceramic bulletproof board back and forth so that it could be worn over the existing PASGT body armor as a temporary measure to prevent rifle bullets. It was abolished and the front was replaced with Point Blank's Interceptor Body Armor, which houses Kevlar Soft Armor and Hard Armor inside the Tactical Vest Body Armor with PALS (MOLLE). In addition, the quick dismantling function using the cable and the handle attached to it is added, and the internal hard armors are also transferred from the SAPI to the ESAPI.

In the current battle mode, where a high level of special warfare, called low-intensity wars or asymmetrical wars, has a high proportion, a highly trained special warfare unit must maintain a prayer bin to avoid direct engagement with regular troops if it penetrates, destroys, or exits an enemy's main facility. This is why a lot of the weapons used are silent weapons.

Representative silent weapons include firearms with silencers (mostly for killing enemy dogs or soldiers), swords, crossbows, and hand axes. Edo is also often killed by enemy guns.

In recent years, small bullets such as FN Herstal's 5.7mm Five-Seven have been introduced with small caliber high speed bullets that easily penetrate existing body armor at a distance of 200m.

The 5.56 x 45 mm SS-109 (4 g bullet weight), adopted as a NATO standard rifle, also has a portion of the steel core that has a range of up to 600 m when fired with a rifle and a range of about 800 m when fired with a machine gun. In contrast to the existing 5.56 x 45 mm M-193 bullet (tank weight 3.56 g), the bullet core was made of lead only and was easily damaged during impact with a dense object (although the killing power was high). The instrument is easily penetrated and is the most recently deployed 5.56 x 45 mm Mk. The 262 heavy coal (5.0 g of bullet weight) need not be further explained.

For these reasons, ultra-high molecular weight polyethylene, which is one of the layered armored armors of the present invention, has better anti-ballistic performance than Kevlar, and has some degree of protection against sword, strong impact from the outside, etc. Soft Armor fabricated in the form described above.

As described above, the present invention is a body armor, bulletproof helmet, elbow protector, knee protector, upper arm guard, lower arm guard, thigh guard, belly and romance guard, combat shoe sole, shield shield, bulletproof mask, rifle butt, pistol frame, bayonet handle It can be applied to all types of weapons, such as swords, handles, and swords, to individual soldiers, as well as to personal protective equipment.

Claims

CNTRPCP layer 100 made of a carbon nanotube-reinforced polycarbonate polymer;

A CNTRPUP layer 200 made of a carbon nanotube-reinforced polyurethane polymer polymer bonded to the bottom surface of the CNTRPCP layer 100 by heat and pressure bonding through a bonding agent;

An ultra high molecular weight polyethylene layer 300 which is bonded to the bottom surface of the CNTRPUP layer 200 by pressing with a bonding agent and absorbs shock to prevent gunshot wounds and blunt force trauma;

Spline liner layer (400) which is bonded to the lower surface of the ultra-high molecular weight polyethylene layer 300 by pressing with a bonding agent to prevent the back fracture and scab fracture;

Kevlar XP ballistic fabric layer 500 is wrapped in a form applied to the layers to surround the spooler layer 400 and finally absorb the impact energy;

The Kevlar XP bulletproof fabric layer 500 is coated and wrapped in a form, and is made of a Nomex heat-resistant fabric layer 600 is provided to block heat transfer to the inside, and to prevent burning by misfire or red coal Hard bulletproof plate.
The method according to claim 1;

The ultra-high molecular weight polyethylene layer 300 is formed by invading the D3o shock-absorbing material in a sufficient amount to Dyneema UD or Spectra fibers in the form of filling it tightly like reinforced concrete by applying pressure and temperature. Personal hard bulletproof board.
The method according to claim 1;

The spliner layer 400 is a personal hard bulletproof plate, characterized in that made of reinforced concrete as a Kepler bulletproof fabric laminated in multiple layers and a sufficient amount of shock absorbing D3o invaded between the Kevlar bulletproof fabric.