CN112923793A - Bulletproof curtain and preparation method thereof - Google Patents

Bulletproof curtain and preparation method thereof Download PDF

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Publication number
CN112923793A
CN112923793A CN202110264557.6A CN202110264557A CN112923793A CN 112923793 A CN112923793 A CN 112923793A CN 202110264557 A CN202110264557 A CN 202110264557A CN 112923793 A CN112923793 A CN 112923793A
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curtain
layer
bulletproof
shear
fabric
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CN112923793B (en
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龚兴龙
周建宇
王胜
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University of Science and Technology of China USTC
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University of Science and Technology of China USTC
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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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/08—Impregnating
    • 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
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0034—Polyamide fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0038—Polyolefin fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
    • 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
    • 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
    • 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
    • B32B2262/0261—Polyamide 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/202—Conductive
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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 relates to a bulletproof curtain and a preparation method thereof, wherein the structure of the bulletproof curtain comprises an inner protective layer, a conductive layer and an outer protective layer from inside to outside, and the curtain is connected with a Bluetooth module; the preparation method comprises the following steps: a. dissolving shear stiff glue, b, dipping the protective layer fabric in the solution obtained in the step a and drying, c, laminating a conductive layer on the product obtained in the step b, and d, laminating another part of the product obtained in the step b and the product obtained in the step c. The bulletproof curtain integrates protection, alarming and heat management, has protection and power-on heating performance, can be widely applied to various important buildings, can protect buildings and indoor personnel from being injured by impact and low temperature, can transmit impact signals to a wireless mobile phone when the bulletproof curtain is impacted, and prompts a user to keep away from the impacted area, thereby escaping from danger in time.

Description

Bulletproof curtain and preparation method thereof
Technical Field
The invention relates to the technical field of protection, in particular to a bulletproof curtain and a preparation method thereof.
Background
The intelligent protection technology is a novel technology which combines the traditional protection means with new materials, new structures and new methods to improve the protection performance and make the protection multifunctional. In the past, the traditional protection means for important parts of human bodies and weak parts of buildings is usually realized by adding thick and heavy protective layers. The designed protective equipment is often heavy and inflexible, and is greatly limited in practical application. In addition, the function of the traditional protective equipment is often very single, and along with the complication of external stimulation and the diversification of application requirements, the protective equipment with single function can not meet the actual application requirements far away. Based on this, researchers have gradually expanded the development work of multifunctional protective equipment.
Mechanical impacts harmful to buildings are common in everyday life. Therefore, it has become a research focus in recent years to enhance the protection of people in buildings. Researches find that glass in a building is often fragile and has sharp cracks after being broken, and the glass is extremely easy to hurt indoor personnel, so that some researchers play a role in protection by increasing the mechanical strength of the glass. Chinese patent publication No. CN207044838U discloses a bulletproof glass window with a replaceable glass supplement layer, which has bulletproof performance and can replace glass with various other functions, so as to achieve the purpose of multiple combined uses of one kind of glass. The chinese patent publication No. CN210000093U discloses a bulletproof glass sealing structure, wherein a rubber plate is further disposed between the connection surface of the fixed section of the bulletproof glass pressing frame and the front windshield body, the rubber plate is also fixed on the front windshield body in a pressing manner, and the fixed section of the bulletproof glass pressing frame and the end of the rubber plate are provided with a glass sealing glue layer for sealing. However, these bullet-proof glasses are inconvenient to transport and install, which limits their practical use. The invention provides a bulletproof curtain concept, which has the excellent characteristics of softness, bulletproof property, multifunction and the like, better solves the existing problems and has no similar design temporarily.
In addition, the indoor temperature is also an important factor for determining the comfort level of human bodies in buildings, the existing heaters such as air conditioners, indoor heating and the like are often heavy and are not easy to move, and the novel curtain provided by the invention also has the function of electrifying and heating, so that the effect of carrying out indoor heat management is achieved. From the presently disclosed patents, there has been little research on smart protective devices that can respond to external impacts, and in particular, there is a great lack of protective devices that can simultaneously perform protection and thermal management.
Disclosure of Invention
The invention improves the defects of the traditional technology and provides a bulletproof curtain and a preparation method thereof. The bulletproof curtain integrates protection, alarming and heat management, and has the performances of electric conduction, protection and power-on heating. Can play the functions of protection and temperature rise, and protect the user from being injured by impact and low temperature. In addition, the bulletproof curtain is connected with the Bluetooth module, so that a signal can be remotely transmitted to the mobile phone when the bulletproof curtain is impacted, and the user can be assisted to avoid risks urgently.
Specifically, the invention is realized by the following technical scheme:
a bulletproof curtain is characterized in that the structure of the bulletproof curtain comprises an inner protective layer, a conductive layer and an outer protective layer from inside to outside; preferably, the curtain is connected with a Bluetooth module.
Further, the inner protective layer comprises a bulletproof fabric layer and a shear-hardening glue layer formed by hydroxyl silicone oil and boride, wherein the shear-hardening glue layer optionally partially or completely impregnates the bulletproof fabric layer; preferably, the mass ratio of the silicone oil to the boride is 10:1 to 40: 1; preferably, the shear-hardened glue layer is formed at a temperature of 30 to 200 degrees celsius.
Further, the outer protective layer comprises a layer of ballistic fabric and a shear hardened glue layer formed from a hydroxy silicone oil and a boride, the shear hardened glue layer optionally partially or fully impregnating the layer of ballistic fabric; preferably, the mass ratio of the silicone oil to the boride is 10:1 to 40: 1; preferably, the shear-hardened glue layer is formed at a temperature of 30 to 200 degrees celsius.
Further, the conductive layer is formed of one or more of a conductive metal carbide, a carbon nanotube film, a graphene film, and a copper foil.
Further wherein the conductive layer is formed at a temperature of-196 degrees Celsius to-30 degrees Celsius; preferably, the conductive layer is formed at a temperature of-196 degrees celsius to-50 degrees celsius.
Further wherein the boride is selected from one or more of boron oxide, boric acid, borate or boron halide.
Further wherein the ballistic fabric is selected from one or more of kevlar and ultra high molecular weight polyethylene.
Further, the crossing angle of the fiber bundle direction of the inner protective layer is 0-90 degrees; preferably, the crossing angle is 90 degrees.
Further, the crossing angle of the fiber bundle direction of the outer protective layer is 0-90 degrees; preferably, the crossing angle is 90 degrees.
The present invention also provides a method of making a ballistic resistant window covering as described in any of the above, comprising the steps of:
a. dissolving the shear hard glue to obtain a solution; preferably, the preparation method of the shear stiff adhesive comprises the following steps: (1) mixing silicone oil with boride; (2) carrying out heat treatment on the mixture obtained in the step (1) at the temperature of room temperature to 200 ℃;
b. b, dipping the bulletproof fabric in the solution obtained in the step a and drying;
c. c, laminating a conductive layer on the product obtained in the step b;
d. and c, pressing and pasting the other part of the product obtained in the step b and the product obtained in the step c together, wherein in the product obtained after pressing, the conductive layer is positioned between the two parts of the dried impregnated bulletproof fabric.
In particular, the invention provides a method for preparing a bulletproof window curtain, which comprises the following steps:
a. mixing silicone oil with boride;
b. heat treating the mixture obtained in step a at 180 ℃;
c. dissolving the product obtained in the step b to obtain a solution;
d. immersing the bulletproof fabric into the solution obtained in the step c and drying;
e. d, attaching a conductive layer to the bulletproof fabric obtained in the step d;
f. pressing another layer of the bulletproof fabric obtained in the step d against the product obtained in the step e. Wherein in the product obtained after pressing, the conductive layer is positioned between the two dried impregnated bulletproof fabrics.
g. And f, fixing one side of the bulletproof curtain obtained in the step f on the upper edge of the inner side of the window, and thus obtaining the novel intelligent bulletproof curtain.
The bulletproof curtain provided by the invention can be widely applied to various essential buildings, the functional categories of the traditional protective equipment are expanded, the bulletproof curtain has good sensing and feedback capabilities on external impact, and the bulletproof curtain has a sensing function, and simultaneously can play good protection and warm-keeping roles due to the existence of shear ebonite and a conductive layer, so that indoor personnel are prevented from being injured by impact and low temperature. In addition, the bulletproof curtain is connected with the Bluetooth module, so that when the bulletproof curtain is impacted, the impact signal can be wirelessly transmitted to the mobile phone, and a user is assisted to avoid danger in time. Therefore, the novel bulletproof curtain has great potential in the aspects of alarming, protection and the like in the field of intelligent protection equipment.
Drawings
Fig. 1 shows the microstructure of the non-impregnated Kevlar fibres of example 7 under a scanning electron microscope.
Fig. 2 shows the microstructure of the Kevlar fibres impregnated with shear-hardening glue prepared in example 7 under a scanning electron microscope.
Figure 3 is a ballistic testing system of the present invention.
FIG. 4 is a graph of the correspondence between the initial velocity of the bullet and the residual velocity after penetration of Kevlar when no impregnated Kevlar is impacted by the bullet and the corresponding fitted curve in example 7.
FIG. 5 is a graph of the initial energy of a bullet when the bullet impacts Kevlar without impregnated shear-shear ebonite of example 7 versus the residual energy after penetration of the Kevlar and a corresponding fit.
Fig. 6 shows the destruction process of the window covering of example 9 when impacted.
FIG. 7 shows the failure of Kevlar fibers of example 7 that have not been impregnated with shear stiff glue when impacted.
Fig. 8 is a graph showing the change in electrical resistance when the window covering of example 9 is impacted by a bullet.
Fig. 9 is a schematic view of a house model used in the test of the bulletproof curtain of the present invention.
Fig. 10 is a schematic diagram of the alarm function of the bulletproof curtain connected with the bluetooth module.
Fig. 11 shows the appearance of ordinary glass after penetration by bullets.
Fig. 12 shows that after the bulletproof window covering of example 9 is assembled by ordinary glass, bullets cannot penetrate through and sharp glass fragments are blocked.
Fig. 13 is a graph showing the temperature change in the room after the bullet-proof window curtains of example 9 are arranged in the model house and heated by electricity.
Detailed Description
The following examples were prepared to test the performance parameters of the samples according to the following test methods:
A. the specific manner of measuring the protective properties of the samples under ballistic impact is as follows: ballistic impact test systems used included air guns, laser velocimeters, digital oscilloscopes (Tektronix DPO 2014B) and high speed cameras (PHANTOMs 2701090-1650). A spherical bullet 8.1 mm in diameter and 2 grams in weight was placed in the bore of the air gun. The initial velocity is controlled by the air pressure and the depth of the bullet in the bore. A laser velocimeter is mounted on the muzzle of the air gun launcher and an oscilloscope is connected to measure the initial velocity of the bullet. The test specimen was fixed to the holder opposite the muzzle, the distance between the muzzle and the holder being 15 cm.
B. The specific way to test the resistance change of the bulletproof curtain when being impacted by a bullet is as follows: the bullet was loaded at high speed in the same manner as test method a. In addition, the bulletproof curtain is connected with a constant-value resistor through a lead and forms a loop with a program-controlled power supply (Idex electronics, Inc. IT 8500). And recording the voltage on two sides of the constant value resistor by using an oscilloscope. When the power supply supplies voltage from the outside, the bullet impacts the curtain to cause the resistance of the curtain to change, so that the voltage division of the constant value resistance in the circuit changes. According to the voltage division condition of the constant value resistor recorded by the oscilloscope, the method can be characterized by comprising the following steps of:
Figure BDA0002971723110000041
and (6) calculating. Wherein R in the formulaM、U、U0、R0The resistance (unit: ohm) of the curtain, the total voltage (unit: volt), the voltage (unit: volt) recorded by an oscilloscope and the fixed value resistance (unit: ohm) are respectively.
C. The specific manner of measuring the shear ebonite storage modulus is as follows:
the shear-cut ebonite was compression molded into a cylinder having a thickness of 1 mm and a diameter of 20 mm. The rheological properties were characterized using a commercial rheometer (Physica MCR 301, Anton Paar co., austria).
D. The specific way to measure the exothermic effect of the sample is as follows:
the sample was placed in the house model. Two copper wires are led out from the conductive layer of the sample and are respectively connected with two ends of a program control power supply (IT 8500 of Edx electronics Co., Ltd.). By applying different external voltages, the sample reaches different saturation temperatures. The probe of the thermocouple (CEM Huashengchang four-channel multi-channel patrol instrument 4-way thermocouple) was placed in the center of the house model. The computer is connected with the thermocouple, records temperature change in real time and derives data.
E. The concrete mode of the intelligent curtain that test and bluetooth module are connected is as follows:
and attaching a bulletproof curtain to the window of the house model. Two wires are led out from the conducting layer of the curtain and connected to a Bluetooth module (a holder 01RC), the Bluetooth module measures resistance, and signals are transmitted to the mobile phone. And hammering the window by a small hammer. The mobile phone is placed on one side, and the change of the resistance signal when the mobile phone is impacted is recorded in real time. According to the serial number of the transmission channel with the resistance change, which window is impacted can be specifically determined, and then the alarm function is played.
F. The specific way of observing the change of the microstructure of the bulletproof fabric before and after dipping the shear hardening glue is as follows:
the microstructure was characterized by scanning electron microscopy (Gemini SEM 500, ZEISS).
Example 1:
the preparation method of the shear hard glue comprises the following steps:
taking the following raw materials in percentage by mass:
silicone oil: boric acid 40:1
100g of silicone oil and 2.5g of boric acid are mixed and stirred, the mixture is put into a drying oven with the temperature of 180 ℃, 250 mu L of n-caprylic acid is added after the silicone oil is coagulated into blocks, and the blocks are softened by the n-caprylic acid and stirred again. The mixture is put back into an oven with the temperature of 180 ℃ to continue heating for 15 minutes and then taken out.
Wherein: the silicone oil is QK-501 hydroxyl silicone oil of Shenzhen Qianjinkae technical development Limited, the viscosity is 15-30 at 25 ℃, and the hydroxyl content is 8-9.
Example 2:
the preparation method of the shear hard glue comprises the following steps:
taking the following raw materials in percentage by mass:
silicone oil: boric acid 30:1
100g of silicone oil and 3.33g of boric acid are mixed and stirred, the mixture is put into an oven with the temperature of 180 ℃, 250 mu L of n-caprylic acid is added after the silicone oil is coagulated into blocks, and the blocks are softened by the n-caprylic acid and stirred again. The mixture is put back into an oven with the temperature of 180 ℃ to continue heating for 15 minutes and then taken out.
Wherein: the silicone oil is QK-501 hydroxyl silicone oil of Shenzhen Qianjinkae technical development Limited, the viscosity is 15-30 at 25 ℃, and the hydroxyl content is 8-9.
Example 3:
the preparation method of the shear hard glue comprises the following steps:
taking the following raw materials in percentage by mass:
silicone oil: boric acid 20:1
100g of silicone oil and 5g of boric acid are mixed and stirred, the mixture is put into a drying oven with the temperature of 180 ℃, 250 mu L of n-caprylic acid is added after the silicone oil is coagulated into blocks, and the blocks are softened by the n-caprylic acid and stirred again. The mixture is put back into an oven with the temperature of 180 ℃ to continue heating for 15 minutes and then taken out.
Wherein: the silicone oil is QK-501 hydroxyl silicone oil of Shenzhen Qianjinkae technical development Limited, the viscosity is 15-30 at 25 ℃, and the hydroxyl content is 8-9.
Example 4:
the preparation method of the shear hard glue comprises the following steps:
taking the following raw materials in percentage by mass:
silicone oil: boric acid 10:1
100g of silicone oil and 10g of boric acid are mixed and stirred, the mixture is put into a drying oven with the temperature of 180 ℃, 250 mu L of n-caprylic acid is added after the silicone oil is coagulated into blocks, and the blocks are softened by the n-caprylic acid and stirred again. The mixture is put back into an oven with the temperature of 180 ℃ to continue heating for 15 minutes and then taken out.
Wherein: the silicone oil is QK-501 hydroxyl silicone oil of Shenzhen Qianjinkae technical development Limited, the viscosity is 15-30 at 25 ℃, and the hydroxyl content is 8-9.
The storage modulus of the shear ebonite prepared in examples 1 to 4 was measured, and the test method was performed according to the specific method of C and measurement of the storage modulus of the shear ebonite in the test method described above, and the test results are as follows:
silicone oil: boric acid 10:1 20:1 30:1 40:1
Minimum storage modulus (Pa) 136.5 232.2 823.6 1047.9
Maximum storage modulus (Pa) 82483.6 104291.7 265363.6 321260.4
The minimum storage modulus was measured at a shear frequency of 0.1Hz, and the maximum storage modulus was measured at a shear frequency of 10 Hz.
Boric acid is the most common boride in the process of making shear-hardened glues. Similarly, a series of borides such as boron oxide, boron boride salts, boron halides, etc. can participate in the reaction to introduce boron elements into the boron-oxygen bonds in the final product, which is not listed here.
Example 5:
preparation of Mxene solution:
1. 2g of lithium fluoride are stirred with 40ml of 9M hydrochloric acid in a Teflon beaker for 30 minutes at 400 rpm.
2. 2g of phase ceramic titanium aluminide carbon (Jilin, 11technology Co., Ltd. MAX-Ti3AlC2 particle size: 74 microns; molecular mass: 194.6; density: 4.2 g/cc) was slowly added to the first step beaker followed by magnetic stirring at 400 rpm at 35 ℃ for 24 hours.
3. And (3) pouring the reaction product obtained in the step (2) into a centrifuge tube, centrifuging at the rotating speed of 3500 rpm, and pouring out the supernatant serving as waste liquid.
4. And (3) adding 30 ml of deionized water into the centrifugal tube in the step 3, performing ultrasonic treatment for 20 minutes, centrifuging at the rotating speed of 3500 rpm, and pouring out the supernatant serving as waste liquid. This procedure was repeated five times, at which time the solution reached a pH of between 5.5 and 6.5.
5. 30 ml of deionized water was added to the centrifuge tube of step 4 and sonicated for 2 hours. The centrifugation was carried out at 3500 rpm for 1 hour, and the upper solution was collected as a product which was used in example 6. This procedure was repeated four times, with a useless gray reaction residue at the bottom.
Example 6:
the conductive layer is prepared by the following steps:
1. the product obtained in example 5 was poured into a glass petri dish, and placed in a freeze-dryer (Ningbo New Zephygzi scientz-10N/A) to be freeze-dried at-50 ℃ for 36 hours.
2. The titanium carbide obtained in step 1 was taken out to obtain spongy titanium carbide, which was used in examples 9 and 10.
Example 7:
the protective layer is prepared by the following steps:
1. placing 100g of the shear hardening gum prepared in example 2 into 300 ml of ethanol solution for ultrasonic dissolution at room temperature to obtain solution;
2. repeatedly dipping Kevlar textile cloth (with the size of 2 cm multiplied by 3 mm) in the solution prepared in the step 1 for 6 times at room temperature, and drying to obtain dipped cloth. Wherein the Kevlar textile fabric is Kevlar-129 in model, 0.3 mm in thickness and 200 g/m in surface density.
Example 8:
the protective layer is prepared by the following steps:
1. placing 100g of the shear hardening gum prepared in example 2 into 300 ml of ethanol solution for ultrasonic dissolution at room temperature to obtain solution;
2. repeatedly dipping a super-strong polyethylene fiber textile fabric (with the size of 2 cm multiplied by 3 mm) in the solution prepared in the step 1 for 6 times at room temperature, and drying to obtain the dipped fabric. Wherein, the manufacturer of the ultra-strong polyethylene textile cloth is Beijing Junanta, the single-layer thickness is 0.9 mm, and the surface density is 300 g/square meter.
Example 9:
1. 20 mg of the spongy titanium carbide obtained in example 6 was rolled and pressed against the impregnated cloth obtained in example 7 using a metal rod;
2. another portion of the impregnated cloth from example 7 was rolled with the product from step 1 using a metal rod. And in the product obtained after pressing, the spongy titanium carbide is positioned between the two parts of impregnated cloth to form a structure with the impregnated cloth, the spongy titanium carbide and the impregnated cloth in sequence, so that the bulletproof curtain is obtained.
The bulletproof curtain can be connected with the Bluetooth module to obtain an intelligent bulletproof curtain. Specifically, two wires are led out from a conducting layer of the curtain and connected to a Bluetooth module (a sincere box 01RC), the Bluetooth module measures resistance, and signals are transmitted to a mobile phone. When the curtain is impacted, the resistance signal changes. According to the serial number of the transmission channel with the resistance change, which window is impacted can be specifically determined, and then the alarm function is played.
In the embodiment, the Kevlar textile fabric is replaced by asbestos, acrylic sheets, cotton fabrics, silicone rubber films, terylene, silk, lyocell or non-woven fabrics, and different novel bulletproof curtains can be obtained by repeating the preparation process.
Example 10
1. 20 mg of the spongy titanium carbide prepared in example 6 was rolled and pressed against the impregnated cloth obtained in example 8 using a metal rod;
2. another portion of the impregnated cloth from example 8 was rolled with the product from step 1 using a metal rod. And in the product obtained after pressing, the spongy titanium carbide is positioned between the two parts of impregnated cloth to form a structure with the impregnated cloth, the spongy titanium carbide and the impregnated cloth in sequence, so that the bulletproof curtain is obtained.
The bulletproof curtain can be connected with the Bluetooth module to obtain an intelligent bulletproof curtain. Specifically, two wires are led out from a conducting layer of the curtain and connected to a Bluetooth module (a sincere box 01RC), the Bluetooth module measures resistance, and signals are transmitted to a mobile phone. When the curtain is impacted, the resistance signal changes. According to the serial number of the transmission channel with the resistance change, which window is impacted can be specifically determined, and then the alarm function is played.
In this embodiment, the ultra-strong polyethylene fiber textile fabric is replaced by asbestos, acrylic sheet, cotton fabric, silicone rubber film, polyester, silk, lyocell or non-woven fabric, and different bulletproof curtains can be obtained by repeating the above preparation process.
Fig. 1 shows the microstructure of the non-impregnated Kevlar fibres of example 7 under a scanning electron microscope. Fig. 2 shows the microstructure of the Kevlar fibres impregnated with shear-hardening glue prepared in example 7 under a scanning electron microscope. Figure 3 is a ballistic testing system of the present invention. FIG. 4 is a graph of the correspondence between the initial velocity of the bullet and the residual velocity after penetration of Kevlar when no impregnated Kevlar is impacted by the bullet and the corresponding fitted curve in example 7. Fig. 5 shows the initial energy of the bullet when no impregnated Kevlar is impacted by the bullet and the residual energy after penetration of Kevlar for example 7, and the corresponding fitted curve. Fig. 6 shows the destruction process of the window covering of example 9 when impacted. FIG. 7 shows the failure of Kevlar fibers of example 7 that have not been impregnated with shear stiff glue when impacted. Fig. 8 is a graph showing the change in electrical resistance when the window covering of example 9 is impacted by a bullet. Fig. 9 is a schematic view of a house model used in the test of the bulletproof curtain of the present invention. Fig. 10 is a schematic diagram of the alarm function of the bulletproof curtain connected with the bluetooth module. Fig. 11 shows the appearance of ordinary glass after penetration by bullets. Fig. 12 shows that after the bulletproof window covering of example 9 is assembled by ordinary glass, bullets cannot penetrate through and sharp glass fragments are blocked. Fig. 13 is a graph showing the temperature change in the room after the bullet-proof window curtains of example 9 are arranged in the model house and heated by electricity.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims (10)

1. A bulletproof curtain is characterized in that the structure of the bulletproof curtain comprises an inner protective layer, a conductive layer and an outer protective layer from inside to outside; preferably, the curtain is connected with a Bluetooth module.
2. The ballistic resistant window covering of claim 1 wherein said inner protective layer comprises a layer of ballistic fabric and a shear-stiffened glue layer formed from a hydroxy silicone oil and a boride, said shear-stiffened glue layer optionally partially or fully impregnating said layer of ballistic fabric; preferably, the mass ratio of the silicone oil to the boride is 10:1 to 40: 1; preferably, the shear-hardened glue layer is formed at a temperature of 30 to 200 degrees celsius.
3. The ballistic resistant window curtain of claim 1 wherein said outer protective layer comprises a layer of ballistic fabric and a shear-stiffened glue layer formed from a hydroxy silicone oil and a boride, said shear-stiffened glue layer optionally partially or fully impregnating said layer of ballistic fabric; preferably, the mass ratio of the silicone oil to the boride is 10:1 to 40: 1; preferably, the shear-hardened glue layer is formed at a temperature of 30 to 200 degrees celsius.
4. The ballistic resistant window covering of claim 1 wherein the conductive layer is formed from one or more of a conductive metal carbide, a carbon nanotube film, a graphene film, a copper foil.
5. The ballistic resistant window curtain of claim 4 wherein the conductive layer is formed at a temperature of from-196 degrees Celsius to-30 degrees Celsius; preferably, the conductive layer is formed at a temperature of-196 degrees celsius to-50 degrees celsius.
6. A ballistic resistant window covering according to claim 2 or claim 3 wherein the boride is selected from one or more of boron oxide, boric acid, a borate or a boron halide.
7. Ballistic resistant window curtain according to claim 2 or 3, wherein the ballistic resistant fabric is selected from one or more of Kevlar and ultra high molecular weight polyethylene.
8. A ballistic resistant window covering according to claim 2 wherein the cross-over angle of the direction of the inner protective layer fibre bundles is from 0 to 90 degrees; preferably, the crossing angle is 90 degrees.
9. A ballistic resistant window covering according to claim 3 wherein the cross-over angle of the outer protective layer fibre bundle direction is from 0 to 90 degrees; preferably, the crossing angle is 90 degrees.
10. A method of making a ballistic resistant window covering according to any one of claims 1 to 9 comprising the steps of:
a. dissolving the shear hard glue to obtain a solution; preferably, the preparation method of the shear stiff adhesive comprises the following steps: (1) mixing silicone oil with boride; (2) carrying out heat treatment on the mixture obtained in the step (1) at the temperature of room temperature to 200 ℃;
b. b, dipping the bulletproof fabric in the solution obtained in the step a and drying;
c. c, laminating a conductive layer on the product obtained in the step b;
d. and c, pressing and pasting the other part of the product obtained in the step b and the product obtained in the step c together, wherein in the product obtained after pressing, the conductive layer is positioned between the two parts of the dried impregnated bulletproof fabric.
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