CN111267429A - UHMWPE fiber reinforced resin-based soft bulletproof material - Google Patents

UHMWPE fiber reinforced resin-based soft bulletproof material Download PDF

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Publication number
CN111267429A
CN111267429A CN202010175731.5A CN202010175731A CN111267429A CN 111267429 A CN111267429 A CN 111267429A CN 202010175731 A CN202010175731 A CN 202010175731A CN 111267429 A CN111267429 A CN 111267429A
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China
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layer
hot
bullet
soft
cloth
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CN202010175731.5A
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曹海建
田鹭新
黄晓梅
陈红霞
杨维维
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Nantong University
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Nantong University
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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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • 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
    • 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
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • 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

Abstract

The invention provides an UHMWPE fiber reinforced resin-based soft bulletproof material, and relates to the technical field of protective equipment. The soft bulletproof material provided by the invention comprises a middle layer, an elastic-facing surface layer superposed on one side surface of the middle layer, and a back elastic surface layer superposed on the other side surface of the middle layer. The invention takes a woven composite material as a bullet-facing surface layer material and a bullet-backing surface layer material of a soft bulletproof material, wherein the woven composite material is formed by preparing UHMWPE fibers into plain cloth or twill cloth and then hot-pressing and compounding the plain cloth or the twill cloth with a hot-melt resin adhesive film; the invention takes a plurality of UD sheets as an intermediate layer material, the UD sheets are formed by hot-pressing and compounding a plurality of UD single sheets, two adjacent UD single sheets are orthogonally arranged, and the UD single sheets are prepared by UHMWPE fibers and thermoplastic resin according to a UD cloth forming method. The soft bulletproof material provided by the invention is light and has excellent bulletproof performance.

Description

UHMWPE fiber reinforced resin-based soft bulletproof material
Technical Field
The invention relates to the technical field of protective equipment, in particular to an UHMWPE fiber reinforced resin-based soft bulletproof material.
Background
The development of weaponry has led to corresponding advances in body armor. The bulletproof clothes are mainly hard bulletproof materials made of special steel, aluminum alloy and other metals, have certain bulletproof performance, are thick and uncomfortable to wear, have large limitation on human activities, and are easy to generate secondary fragments. In order to improve the wearing comfort of the bulletproof clothes, soft bulletproof materials are produced. The soft bulletproof material has light weight, soft texture, good fitness and good concealment when worn inside. In terms of bulletproof capability, the existing soft bulletproof material (generally, the multiple sheets have the surface density of 160 g/m)2The right and left UD sheets are stacked) generally can prevent bullets shot by pistols and submachine guns of 5m or more, but the depth of the back projection is large (close to the critical value specified by the standard), and the bulletproof performance is still to be improved.
Disclosure of Invention
In view of the above, the present invention aims to provide a UHMWPE fiber reinforced resin based soft ballistic material. The soft bulletproof material provided by the invention is light and has excellent bulletproof performance.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides an UHMWPE fiber reinforced resin-based soft bulletproof material, which comprises a middle layer, a bullet-facing surface layer superposed on one side surface of the middle layer material, and a bullet-backing surface layer superposed on the other side surface of the middle layer material;
the middle layer is formed by overlapping a plurality of UD sheets, a single UD sheet is formed by hot-pressing and compounding a plurality of UD single sheets, and two adjacent UD single sheets are orthogonally arranged; the UD single sheet is prepared from first UHMWPE fibers and a thermoplastic resin according to a UD cloth forming method; the areal density of the UD single sheet is 20-40 g/m2；
The bullet-facing surface layer and the bullet-backing surface layer are independently woven composite materials, the woven composite materials are formed by overlapping a plurality of woven single-layer materials, the woven single-layer materials are formed by manufacturing second UHMWPE fibers into plain cloth or twill cloth, and then hot-pressing and compounding the plain cloth or the twill cloth with a hot-melt resin adhesive film; the surface density of the woven single-layer material is 80-300 g/m2；
The mass of the bullet-facing surface layer, the mass of the middle layer and the mass of the bullet-backing surface layer respectively account for 5-10%, 50-80% and 20-50% of the mass of the soft bulletproof material; the soft bulletproof material has an areal density of 3.5 to 5.5kg/m2。
Preferably, the linear density of the first UHMWPE fibers and the second UHMWPE fibers is independently 400-1000D.
Preferably, the total number of UD single sheets in the single UD sheet is even and is less than or equal to 10; the areal density of each single UD sheet is 80-320 g/m2。
Preferably, the UD single sheet hot-pressing compounding temperature is 50-130 ℃, the time is 0.5 min-1 h, and the pressure is 0.5 MPa-2.5 MPa.
Preferably, the middle layer is formed by overlapping 10-25 UD sheets; the total areal density of the intermediate layer is 1.75-4.5 kg/m2。
Preferably, the thermoplastic resin is a polyurethane resin or an ethylene-vinyl acetate copolymer resin; the first UHMWPE fibers and the thermoplastic resin respectively account for 60-90% and 10-40% of the mass of the UD single sheet.
Preferably, the surface density of the plain or twill cloth is 50-200 g/m2(ii) a The hot-melt resin adhesive film is made of polyurethane or polyethylene; the surface density of the hot-melt resin adhesive film is 20-40 g/m2。
Preferably, the hot-pressing compounding temperature of the plain cloth or the twill cloth and the hot-melting resin adhesive film is 100-150 ℃, the time is 0.5-1.5 h, and the pressure is 0.5-2.5 MPa.
Preferably, the bullet-facing surface layer is formed by overlapping 1-2 layers of woven single-layer materials; the total areal density of the bullet-facing surface layer is 0.175-0.55 kg/m2。
Preferably, the back elastic surface material is formed by superposing 2-8 layers of woven single-layer materials; the total areal density of the back elastic surface layer is 0.7-2.75 kg/m2。
The invention provides an UHMWPE fiber reinforced resin-based soft bulletproof material, which comprises a middle layer, an elastic-facing surface layer superposed on one side surface of the middle layer material, and a back elastic surface layer superposed on the other side surface of the middle layer. The woven composite material is respectively used as a bullet-facing surface layer and a bullet-backing surface layer of the soft bulletproof material, and is formed by superposing a plurality of woven single-layer materials, wherein UHMWPE (ultra-high molecular weight polyethylene) fibers are made into plain cloth or twill cloth, and then the plain cloth or the twill cloth is compounded with a hot-melt resin adhesive film in a hot-pressing manner; the woven composite material has a compact structure and good rigidity, can improve the bearing load of the bullet-facing surface and slow down the back-convex phenomenon of the bullet-facing surface. The invention takes a plurality of UD sheets as the middle layer, the UD sheets are formed by hot-pressing and compounding a plurality of UD single sheets, two adjacent UD single sheets are orthogonally arranged, and the UD single sheets are prepared by UHMWPE fibers and thermoplastic resin according to a UD cloth forming method; the UD sheet material is capable of rapidly dissipating the shock wave and absorbing a substantial portion of the kinetic energy of the bullet. Therefore, the soft bulletproof material provided by the invention is light in weight, has excellent bulletproof performance, can meet the requirements of GA2 level and GA3 level protection in China and the requirements of NIJ IIIA level protection in America, and has small back convex depth.
The results of the examples show that the soft bulletproof material provided by the invention can completely prevent all 5 bullets through GA2 level bulletproof performance tests, and the average value of the back convex depth is less than or equal to 18mm and is far less than 25mm specified by the standard; the soft bulletproof material provided by the invention is tested by GA3 level bulletproof performance, not only can completely prevent all 5 bullets, but also has the average value of the back convex depth less than or equal to 18mm and is far less than 25mm specified by the standard; the soft bulletproof material provided by the invention is tested by NIJIIIA level bulletproof performance, not only can completely prevent all 5 bullets, but also has the average value of the back convex depth less than or equal to 20mm and is far smaller than 44mm specified by the standard; in addition, compared with the traditional soft bulletproof material, the soft bulletproof material provided by the invention has smaller surface density and lighter weight.
Drawings
Fig. 1 is a schematic structural decomposition diagram of an UHMWPE fiber-reinforced resin-based soft ballistic material provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a UD single sheet stacking system in the present invention.
Detailed Description
The invention provides an UHMWPE fiber reinforced resin-based soft bulletproof material, which comprises a middle layer, an elastic-faced surface layer superposed on one side surface of the middle layer, and a back elastic surface layer superposed on the other side surface of the middle layer, wherein the elastic-faced surface layer is a composite material of a composite material and a composite material;
the middle layer material is formed by overlapping a plurality of UD sheets, a single UD sheet is formed by hot-pressing and compounding a plurality of UD single sheets, and two adjacent UD single sheets are orthogonally arranged; the UD single sheet is prepared from first UHMWPE fibers and a thermoplastic resin according to a UD cloth forming method; the areal density of the UD single sheet is 20-40 g/m2；
The bullet-facing surface layer and the bullet-backing surface layer are independently woven composite materials, the woven composite materials are formed by overlapping a plurality of woven single-layer materials, the woven single-layer materials are formed by manufacturing second UHMWPE fibers into plain cloth or twill cloth, and then hot-pressing and compounding the plain cloth or the twill cloth with a hot-melt resin adhesive film; the surface density of the woven single-layer material is 80-300 g/m2；
The mass of the bullet-facing surface layer, the mass of the middle layer and the mass of the bullet-backing surface layer respectively account for 5-10%, 50-80% and 20-50% of the mass of the soft bulletproof material; the soft bulletproof material has an areal density of 3.5 to 5.5kg/m2。
The structure of the UHMWPE fiber reinforced resin-based soft bulletproof material provided by the invention is shown in figure 1.
The UHMWPE Fiber (ultra high molecular weight polyethylene Fiber ) reinforced resin-based soft bulletproof material comprises a middle layer; the middle layer accounts for 50-80% of the mass of the soft bulletproof material, and preferably accounts for 60-70%. In the invention, the middle layer is formed by overlapping a plurality of UD (unidirectional Fabric) sheets, each UD sheet is formed by hot-press compounding a plurality of UD single sheets, and two adjacent UD single sheets are orthogonally arranged, namely the UD single sheets are overlapped according to the sequence of 0 degrees (UD single sheet fiber parallel arrangement direction) → 90 degrees → 0 degrees → 90 degrees → … … and then are subjected to hot-press compounding; the stacking of the UD monoliths is shown in fig. 2.
In the present invention, the UD monolith is prepared from the first UHMWPE fibers and the thermoplastic resin according to a UD cloth molding method. In the invention, the linear density of the first UHMWPE fibers is preferably 400-1000D, and more preferably 600-800D; the thermoplastic resin is preferably a polyurethane resin (PU resin) or an ethylene-vinyl acetate copolymer resin (EVA resin); the first UHMWPE fibers and the thermoplastic resin preferably account for 60-90% and 10-40% of the mass of the UD single sheet respectively, and preferably account for 70-80% and 20-30% respectively. The present invention has no particular requirements as to the origin of the first UHMWPE fibers and the thermoplastic resin, and said parameter requirements may be met using commercially available products well known to the person skilled in the art.
The invention has no special requirements on the UD cloth forming method, and the method known by the technical personnel in the field can be adopted, in particular, the first UHMWPE fiber is orderly arranged in one direction, then the UHMWPE fiber is impregnated with thermoplastic resin, and then the UHMWPE fiber is dried to form UD single sheets. In the invention, the UD single sheet has an area density of 20-40 g/m2Preferably 25 to 35g/m2。
In the present invention, the total number of UD single sheets in the single UD sheet is preferably an even number and 10 or less, and specifically may be 2, 4, 6, 8, or 10; the areal density of the single UD sheet is preferably 80-320 g/m2(ii) a The temperature of UD single-sheet hot-pressing compounding is preferably 50-130 ℃, more preferably 100-120 ℃, and the time is preferably 0.5min ∞1h, more preferably 30-40 min, and the pressure is preferably 0.5-2.5 MPa, more preferably 1.5-2 MPa. The invention has no special requirement on the specific operation method of the hot-press compounding, and the hot-press compounding method which is well known to the technical personnel in the field can be adopted. In the invention, the intermediate layer is preferably formed by overlapping 10-25 UD sheets; the total areal density of the intermediate layer is preferably 1.75-4.5 kg/m2。
The UHMWPE fiber reinforced resin-based soft bulletproof material provided by the invention comprises an elastic-facing surface layer superposed on one side surface of the middle layer. In the invention, the bullet-facing layer accounts for 5-10% of the mass of the soft bulletproof material, and preferably 6-8%. In the invention, the bullet-facing surface layer is a woven composite material, the woven composite material is formed by overlapping a plurality of woven single-layer materials, and the woven single-layer materials are formed by preparing second UHMWPE fibers into plain cloth or twill cloth and then hot-pressing and compounding the plain cloth or twill cloth and a hot-melt resin adhesive film. In the present invention, the linear density of the second UHMWPE fibers is preferably 400 to 1000D, and more preferably 600 to 800D. The invention has no special requirements on the method for manufacturing plain cloth or twill cloth, and can adopt a corresponding method well known by the technical personnel in the field; the surface density of the plain or twill cloth is preferably 50-200 g/m2More preferably 100 to 1500g/m2. In the invention, the material of the hot-melt resin adhesive film is preferably Polyurethane (PU) or Polyethylene (PE); the surface density of the hot-melt resin adhesive film is preferably 20-40 g/m2. The source of the hot-melt resin adhesive film is not particularly required in the invention, and the corresponding hot-melt resin adhesive film well known to those skilled in the art can be adopted. In the invention, the hot-pressing compounding temperature of the plain cloth or the twill cloth and the hot-melt resin adhesive film is preferably 100-150 ℃, and more preferably 120-140 ℃; the time for hot-pressing compounding is preferably 0.5-1.5 h, and more preferably 0.5-1 h; the pressure of the hot-pressing compounding is preferably 0.5-2.5 MPa, and more preferably 1.5-2 MPa; the hot-pressing compounding is preferably carried out according to the form of 1 layer of hot-melting resin adhesive film +1 layer of plain cloth or twill cloth +1 layer of hot-melting resin adhesive film. In the present invention, the plain or twill isThe mass of the hot-melt resin adhesive film accounts for 60-80% and 20-40% of the mass of the woven single-layer material respectively. In the invention, the surface density of the woven single-layer material is 80-300 g/m2Preferably 100 to 250g/m2(ii) a The bullet-facing surface layer is preferably formed by overlapping 1-2 layers of woven single-layer materials; the total areal density of the bullet-facing surface layer is preferably 0.175-0.55 kg/m2。
The UHMWPE fiber reinforced resin-based soft bulletproof material comprises a backfire surface layer which is superposed on the other side surface of the intermediate layer material; the mass of the back elastic surface layer accounts for 20-50% of the mass of the soft bulletproof material, and preferably 30-40%. In the present invention, the backface signature layer is a woven composite material; the woven composite material is formed by superposing a plurality of layers of woven single-layer materials; the woven single-layer material is selected from the woven single-layer materials in the technical scheme, and the details are not repeated. In the invention, the back elastic surface material is preferably formed by overlapping 2-8 layers of woven single-layer materials; the total areal density of the back elastic surface layer is preferably 0.7-2.75 kg/m2。
The UHMWPE fiber reinforced resin-based soft bulletproof material provided by the invention is prepared by stacking the bullet-facing surface layer, the middle layer and the bullet-backing surface layer according to the structural composition of the layers.
The UHMWPE fiber reinforced resin-based soft bulletproof material provided by the invention is light in weight, has excellent bulletproof performance, and can meet the requirements of GA2 level and GA3 level protection in China and the requirements of NIJIIIA level protection in the United states. The surface density of the UHMWPE fiber reinforced resin-based soft bulletproof material provided by the invention is 3.5-5.5 kg/m2When the areal density of the soft bulletproof material is 3.5 to 4.5kg/m2The protection requirement of China GA2 level can be met; when the areal density of the soft bulletproof material is 4.5 to 5.5kg/m2And meanwhile, the protective agent can meet the requirements of China GA3 grade protection and American NIJ IIIA grade protection.
The UHMWPE fiber-reinforced resin-based soft ballistic material provided by the present invention is described in detail below with reference to examples, but these should not be construed as limiting the scope of the present invention.
Example 1
UHMWPE (Linear Density 800D) fiber is made into plain cloth (surface Density is 190 g/m)2) Then, the plain cloth and PE hot-melt resin adhesive film (the surface density is 40 g/m)2) The woven single-layer material is prepared by hot-pressing and compounding in a mode of '1 layer of glue film +1 layer of plain cloth +1 layer of glue film', the hot-pressing temperature is 130 ℃, the time is 0.5h, and the pressure is 2 MPa; the areal density of the woven single-layer material is 270g/m2；
And (2) mixing the components in a mass ratio of 4: 1 UHMWPE fiber (Linear Density 800D) and thermoplastic resin (PU) were formed into a UD sheet by a UD cloth molding method, and the UD sheet had an areal density of 40g/m2Superposing 4 layers of UD single sheets in the order of 0 ° → 90 ° → 0 ° → 90 ° → … …, and carrying out hot-press compounding at a temperature of 120 ℃, a time of 0.5h and a pressure of 2MPa to obtain UD sheets;
taking a layer of woven single-layer material as a bullet facing layer, superposing five layers of woven single-layer materials as a bullet backing layer, and superposing 18 UD sheets as a middle layer; stacking the bullet-facing surface layer, the middle layer and the bullet-back surface layer in sequence to obtain the UHMWPE fiber reinforced resin-based soft bulletproof material; the bullet-facing surface, the middle layer and the back bullet surface respectively account for 7 percent, 65 percent and 28 percent of the mass of the soft bulletproof material.
The surface density of the UHMWPE fiber reinforced resin-based soft bulletproof material is 4.5kg/m2The GA2 level bulletproof performance test result shows that the material has excellent bulletproof performance, can completely prevent all 5 bullets, and has the average value of the back convex depth less than or equal to 18mm which is far less than 25mm specified by the standard.
Comparative example 1
And (2) mixing the components in a mass ratio of 4: 1 UHMWPE fiber (Linear Density 800D) and thermoplastic resin (PU resin) were formed into a UD sheet by a UD cloth molding method, and the UD sheet had an areal density of 40g/m2The 4-layer UD single sheet was subjected to hot press lamination in the order of 0 ° → 90 ° → 0 ° → 90 ° → … … to obtain a UD sheet having an areal density of 160g/m2；
Stacking 29 UD sheets in the order of top to bottom to obtain soft bulletproof material with the areal density of 4.64kg/m2(ii) a The GA2 level bulletproof performance test result shows that the material can preventAll 5 bullets are stopped, but the average depth of the back projection is more than or equal to 22 mm.
Example 2
UHMWPE (Linear Density 800D) fiber is made into plain cloth (surface Density is 190 g/m)2) Then, the plain cloth and PE hot-melt resin adhesive film (the surface density is 40 g/m)2) The woven single-layer material is prepared by hot-pressing and compounding in a mode of '1 layer of glue film +1 layer of plain cloth +1 layer of glue film', the hot-pressing temperature is 130 ℃, the time is 0.5h, and the pressure is 2 MPa; the areal density of the woven single-layer material is 270g/m2；
And (2) mixing the components in a mass ratio of 4: 1 UHMWPE fiber (Linear Density 800D) and thermoplastic resin (PU) were formed into a UD sheet by a UD cloth molding method, and the UD sheet had an areal density of 40g/m2Superposing 4 layers of UD single sheets in the order of 0 ° → 90 ° → 0 ° → 90 ° → … …, and carrying out hot-press compounding at a temperature of 120 ℃, a time of 0.5h and a pressure of 2MPa to obtain UD sheets;
taking a layer of woven single-layer material as a bullet-facing surface layer, superposing six layers of woven single-layer materials as a bullet-back surface layer, and superposing 20 UD sheets as an intermediate layer; stacking the bullet-facing surface layer, the middle layer and the bullet-back surface layer in sequence to obtain the UHMWPE fiber reinforced resin-based soft bulletproof material; the bullet-facing surface, the middle layer and the back bullet surface respectively account for 5.3 percent, 62.9 percent and 31.8 percent of the mass of the soft bulletproof material.
The surface density of the UHMWPE fiber reinforced resin-based soft bulletproof material is 5.09kg/m2The GA3 level bulletproof performance test result shows that the material has excellent bulletproof performance, can completely prevent all 5 bullets, and has the average value of the back convex depth less than or equal to 18mm which is far less than 25mm specified by the standard.
Example 3
UHMWPE (Linear Density 800D) fiber is made into plain cloth (surface Density is 190 g/m)2) Then, the plain or twill cloth is mixed with PE hot-melt resin adhesive film (the surface density is 40 g/m)2) The woven single-layer material is prepared by hot-pressing and compounding in a mode of '1 layer of glue film +1 layer of plain cloth +1 layer of glue film', the hot-pressing temperature is 130 ℃, the time is 0.5h, and the pressure is 2 MPa; the areal density of the woven single-layer material is 270g/m2；
Mass ofThe ratio is 4: 1 UHMWPE fiber (Linear Density 800D) and thermoplastic resin (PU resin) were formed into a UD sheet by a UD cloth molding method, and the UD sheet had an areal density of 40g/m2Superposing 4 layers of UD single sheets in the order of 0 ° → 90 ° → 0 ° → 90 ° → … …, and carrying out hot-press compounding at a temperature of 120 ℃, a time of 0.5h and a pressure of 2MPa to obtain UD sheets;
superposing two woven single-layer materials to form a bullet-facing surface layer, superposing five woven single-layer materials to form a bullet-backing surface layer, and superposing 20 UD sheets to form a middle layer; stacking the bullet-facing surface layer, the middle layer and the back bullet-facing material in sequence to obtain the UHMWPE fiber reinforced resin-based soft bulletproof material; the bullet-facing surface, the middle layer and the back bullet surface respectively account for 10 percent, 63 percent and 27 percent of the mass of the soft bulletproof material.
The surface density of the UHMWPE fiber reinforced resin-based soft bulletproof material is 5.1kg/m2The NIJIIIA level bulletproof performance test result shows that the material has excellent bulletproof performance, can completely prevent all 5 bullets, and has the average value of the back convex depth less than or equal to 20mm and far less than 44mm specified by the standard.
As can be seen from the examples 1-3 and the comparative example 1, the UHMWPE fiber reinforced resin-based soft bulletproof material provided by the invention has smaller areal density, namely is lighter, and the bulletproof performance is obviously better than that of the traditional soft bulletproof material.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The UHMWPE fiber reinforced resin-based soft bulletproof material comprises a middle layer, an elastic-facing surface layer superposed on one side surface of the middle layer, and a back elastic surface layer superposed on the other side surface of the middle layer;
the middle layer is formed by overlapping a plurality of UD sheets, a single UD sheet is formed by hot-pressing and compounding a plurality of UD single sheets, and two adjacent UD single sheets are orthogonally arranged; the UD single sheet is formed by a first UHMWPE fiber and heatThe plastic resin is prepared according to a UD cloth forming method; the areal density of the UD single sheet is 20-40 g/m2；
The bullet-facing surface layer and the bullet-backing surface layer are independently woven composite materials, the woven composite materials are formed by overlapping a plurality of woven single-layer materials, the woven single-layer materials are formed by manufacturing second UHMWPE fibers into plain cloth or twill cloth, and then hot-pressing and compounding the plain cloth or the twill cloth with a hot-melt resin adhesive film; the surface density of the woven single-layer material is 80-300 g/m2；
The mass of the bullet-facing surface layer, the mass of the middle layer and the mass of the bullet-backing surface layer respectively account for 5-10%, 50-80% and 20-50% of the mass of the soft bulletproof material; the soft bulletproof material has an areal density of 3.5 to 5.5kg/m2。
2. The soft ballistic resistant material according to claim 1, characterized in that the linear density of the first UHMWPE fibers and the second UHMWPE fibers independently is 400-1000D.
3. The soft ballistic resistant material of claim 1 wherein the UD monoliths in said single UD sheet have a total number of layers which is even and a total number of layers which is 10 or less; the areal density of each single UD sheet is 80-320 g/m2。
4. The soft bulletproof material of claim 1 or 3, wherein the UD single sheet hot-press compounding temperature is 50-130 ℃, the time is 0.5 min-1 h, and the pressure is 0.5-2.5 MPa.
5. The soft bulletproof material of claim 1 or 3, wherein the intermediate layer is formed by stacking 10 to 25 UD sheets; the total areal density of the intermediate layer is 1.75-4.5 kg/m2。
6. The soft ballistic resistant material of claim 1 wherein the thermoplastic resin is a polyurethane resin or an ethylene-vinyl acetate copolymer resin; the first UHMWPE fibers and the thermoplastic resin respectively account for 60-90% and 10-40% of the mass of the UD single sheet.
7. The soft ballistic resistant material of claim 1 wherein the plain or twill cloth has an areal density of 50 to 200g/m2(ii) a The hot-melt resin adhesive film is made of polyurethane or polyethylene, and the surface density of the hot-melt resin adhesive film is 20-40 g/m2。
8. The soft bulletproof material of claim 1 or 7, wherein the temperature of the hot-press compounding of the plain or twill cloth and the hot-melt resin adhesive film is 100 to 150 ℃, the time is 0.5 to 1.5 hours, and the pressure is 0.5 to 2.5 MPa.
9. The soft bulletproof material of claim 1, wherein the bullet-facing layer is formed by stacking 1-2 layers of woven single-layer materials; the total areal density of the bullet-facing surface layer is 0.175-0.55 kg/m2。
10. The soft ballistic resistant material of claim 1 wherein the ballistic face layer is formed by the superposition of 2 to 8 layers of woven single layer material; the total areal density of the back elastic surface layer is 0.7-2.75 kg/m2。
CN202010175731.5A 2020-03-13 2020-03-13 UHMWPE fiber reinforced resin-based soft bulletproof material Pending CN111267429A (en)

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CN111909489A (en) * 2020-08-14 2020-11-10 南通大学 Fiber resin composite material and preparation method and application thereof
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CN114932736A (en) * 2022-05-11 2022-08-23 郑州中远防务材料有限公司 Production system and production method of double-layer unidirectional cloth
CN114957989A (en) * 2022-05-19 2022-08-30 江苏先诺新材料科技有限公司 Bulletproof composite material and preparation method thereof
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CN114963875A (en) * 2022-05-20 2022-08-30 江南大学 Bulletproof plate based on expanded UHMWPE fiber heterogeneous structure and preparation method

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