CN116616516A - Danger avoiding garment with nickel plating magnetized hollow glass microsphere armor plate - Google Patents

Abstract

The invention belongs to the technical field of protective clothing, and provides danger avoiding clothing with nickel-plated magnetized hollow glass microsphere armor sheets. The core of the risk-avoiding suit is a armor sheet covered by an outer layer, the armor sheet consists of an upper interlayer, a lower interlayer, a sandwich and a binder, the sandwich is made of aluminum foil composite glass fiber reinforced plastic materials, the sandwich is made of nickel plating magnetized hollow glass microsphere composite foam materials, the binder is made of high-strength epoxy resin, the armor sheet is compositely formed by a VARI (vacuum assisted resin infusion molding) process, and the armor sheet is processed into a specific specification for use, so that the armor sheet can provide comprehensive protection for wearing personnel, and meanwhile, the influence on the activity flexibility of personnel is reduced. The nickel plating magnetization hollow glass microsphere technology adopted in the composite foam material ensures that the strength of the monomer microsphere is improved to a certain extent, and the microsphere surface has the same magnetism through magnetization, so that aggregation or the condition of a relatively short distance of the microsphere in the stirring process with resin can be reduced, and the strength of the composite foam material is further improved.

Description

A nickel-plated magnetized hollow glass microsphere armor sheet for hazard protection

technical field

The invention belongs to the technical field of protective clothing, and relates to a protective clothing of nickel-plated magnetized hollow glass microsphere armor sheets.

Background technique

The ocean contains rich and diverse resources, occupying 71% of the earth's area. Against the background of rapid development of science and technology, increasing demand for resources, and increasingly frequent global trade, the concept of ocean platforms is changing day by day, and activities on the sea are increasing day by day. At the same time, it also brings more security risks.

Generally speaking, offshore platforms carry a large amount of fossil fuels and complex electrical equipment. Affected by the harsh natural environment of the ocean, unexpected problems such as short circuit of wires and equipment failures are prone to occur, which in turn lead to various uncontrollable fire accidents. Typical examples are fossil and natural gas energy mining platforms, flammable and explosive transport ships, etc., which are prone to explosions and large-scale fires when encountering fire sources. On the other hand, offshore platforms are generally far away from the land, and it is difficult to rescue them. People who fall into the water may face various accidents such as fainting and lack of physical strength, which pose a huge threat to the safety of offshore workers. Therefore, at the present stage, when facing dangers such as drowning, fire, explosion, etc., a kind of hedging suit that can provide buoyancy, fire prevention and certain impact resistance is badly needed to protect people's life safety.

The patent CN202110270316.2 of Dalian University of Technology Ma Zhe et al. is a fire-proof buoyant marine work suit based on HGM/ER. Epoxy resin and hollow glass microspheres are used to compound foam materials that can simultaneously provide buoyancy and fire resistance. , the higher the filling rate of the hollow glass microspheres, the lighter the overall composite. But at present, the strength of hollow glass microspheres is lower than that of epoxy resin materials. The increase of the filling rate of hollow glass microspheres will cause the decline of the strength of the overall composite material, and in the case of epoxy resin and hollow glass microspheres In the process of mixing, it is difficult to fully stir the hollow glass microspheres to make them evenly distributed in the resin, and the aggregation and bonding of the hollow glass microspheres will further cause a decrease in the strength of the composite foam material.

Secondly, the composite foam material is a hard material and does not have the characteristics of flexibility. It cannot be bent like our common fabrics and rubber products. Therefore, the application in hazard clothing needs to adopt a modular form. For the division and design of modules, the traditional ordinary life jacket is only a vest style, which is used for emergency purposes and has no special requirements. It abandons the flexibility required for human activities and adopts several large modules for simple division; the paper by Wang Huiling and others of Nantong University The protective performance and research progress of explosion-proof clothing [J]. Textile Report, 2016, (05): 33-37. In the general hard explosion-proof clothing or special clothing such as police and military, the modules are divided into chest protection and elbow protection The protective effect of other parts is relatively poor, the joints are relatively stiff, the weight is heavy, not flexible enough, and it is inconvenient to wear and move, which may delay the escape process and self-rescue after falling into the water, thereby threatening personnel. life safety.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned technologies, the present invention proposes a nickel-plated magnetized hollow glass microsphere armor piece for a hazard suit. Hollow glass microspheres are relatively weak in strength compared to resin materials. By coating the outer surface of hollow glass microspheres with a layer of metallic nickel, the compressive strength of hollow glass microspheres can be improved, thereby improving the strength of the overall composite foam material. Therefore, in the design, it can Further increase the filling rate of the hollow glass microspheres and reduce the density of the composite foam material. Secondly, magnetize the nickel-plated hollow glass microspheres, so that different nickel-plated magnetized hollow glass microspheres have a certain repulsion to each other, so that the hollow glass microspheres can reduce aggregation and bond better in the process of stirring with epoxy resin materials. In the near case, the overall distribution is more uniform, increasing the strength of the overall syntactic foam. Finally, the composite foam material module is designed as a fish-scale bionic armor sheet with a sandwich structure. The armor sheet is designed to be of appropriate size and uniform specifications. The chain and aramid thread are fixed on the outer surface of the hazard suit, and the overall hazard suit can achieve the effect of not affecting the normal activities of the personnel after wearing it.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A nickel-plated magnetized hollow glass microsphere armor sheet for a hazard suit, the hazard suit is composed of a plurality of armor sheets with the same structure stacked armor sheet surface layer 1, airgel cotton middle layer 2, sandwich Mesh nylon inner layer 3-composition. The airgel cotton middle layer has certain heat insulation, flame retardant and impact resistance properties, and the sandwich mesh nylon inner layer is soft and comfortable, which can improve the contact between the suit and the human body, and buffer the impact force on the human body through its own elastic deformation.

Each of the armor pieces is a disc structure (the circular sheet protruding from the center of the upper and lower surfaces, the upper and lower surfaces are cut to have a certain angle), including an upper interlayer 4, a middle sandwich layer 5, a lower interlayer 6, Adhesive 7, the upper and lower sandwich layers and the middle sandwich core layer 5 are fixedly connected by adhesive 7. The edges of the upper interlayer 4 and the lower interlayer 6 are inclined planes, and the inclination angle is α. All the armor pieces are fixed on the airgel cotton middle layer 2 through the inclined plane of the lower interlayer 6, and the adjacent armor pieces are stacked by the inclined planes. , and finally the armor sheet is stacked on the surface of the airgel cotton middle layer 2 in a scale manner. details as follows:

The upper interlayer of the armor sheet is designed with connecting holes 8, and the lower interlayer is designed with connecting holes 9 and 10. The adjacent armor sheets are connected by ring-shaped thin metal chains 11, so that they can be stacked according to the principle of bionics. The high-strength aramid fiber thread 12 is used to constrain and fix between the armor piece and the airgel cotton middle layer 2 . Specifically: the upper interlayer 4 of the single piece of armor is provided with through connection holes 8 , and the lower interlayer 6 is provided with connection holes, which are respectively through holes 9 and a pair of adjacent holes 10 . The inclined surface of the lower interlayer 6 of the armor sheet and the airgel cotton middle layer 2 pass through a pair of holes 10 through the high-strength aramid fiber thread 12 inside, and are sewn on the airgel cotton middle layer 2 the same as the button form. Adjacent overlapping armor pieces, use thin metal chain 11 to pass through the upper interlayer hole 8 of one armor piece and the lower interlayer hole 9 of another armor piece to be connected to form a ring, so that there is a gap between adjacent armor pieces. A certain relative activity space can meet the normal activity needs of the wearer.

The core of the surface layer 1 of the armor sheet is a nickel-plated magnetized hollow glass microsphere composite material, the upper interlayer 4 and the lower interlayer 6 are made of aluminum foil composite FRP material, and the middle sandwich layer 5 is made of nickel-plated magnetized hollow glass microspheres composite material. The VARI (Vacuum Assisted Resin Infusion Technology) process is used to fill the high-strength binder matrix into the upper and lower interlayers and sandwich layers to obtain high-strength composite armor sheets.

Further, the high-strength adhesive is epoxy resin plus curing agent.

Further, the thickness of the airgel cotton middle layer 2 is 6mm, the thickness of the sandwich mesh nylon inner layer 3 is 4mm, the arc diameter of the armor sheet is 6cm, and the equivalent thickness is 2cm. The equivalent thickness ratio of the middle sandwich layer 5 is 1:3, the ratio of the diameter to thickness of the armor sheet is 1:3, and the inclination angle of the upper interlayer 4 and the lower interlayer 6 of the armor sheet is 20°, that is, when the armor sheet is installed The inclination angle is 20°, and the coverage angle (the coverage angle refers to the center angle formed by the circular overlapping intersection of the two armor pieces and the center of the armor piece) is 56° for laying.

Further, the specific preparation method of the nickel-plated magnetized hollow glass microsphere composite material is as follows: after surface pretreatment and activation treatment of the hollow glass microspheres, soaking in a nickel ion electrolyte to form a layer of nickel film, Then it is cleaned to remove the residual activator and electrolyte on the surface. Finally, the nickel-plated hollow glass microspheres are placed in a stable strong magnetic field for magnetization. After the production is completed, they are fully stirred with the resin, and the curing agent is added to form a composite foam material. , cut into the shape of the sandwich layer 5 in the middle of the armor sheet.

The beneficial effects of the present invention are:

1) The use of nickel-plated magnetic hollow glass microspheres can increase the compressive strength of a single hollow glass microsphere, make its distribution in the resin more uniform, reduce the aggregation and bonding, and improve the strength of the overall composite material. The initial estimate is 2cm The thick composite foam material can withstand the 1.1g high-speed fragments of 1600m/s produced by the explosion.

2) On the premise of meeting the strength requirements, the filling rate of nickel-plated magnetic hollow glass microspheres can be further increased to 40-60%, so that the density of the overall composite foam material can be reduced to 0.3-0.5g/cm ³ . Syntactic foam is lighter and provides greater buoyancy.

3) The armor sheet made of composite foam material not only has excellent impact resistance and buoyancy performance, but also has a low thermal inertia. Effectively resist the transfer of heat to the human body in a fire or explosion.

4) The armor pieces are designed according to the small-sized bionic fish scales, and are stacked and arranged in a special form, which can provide more comprehensive protection. At the same time, the adjacent armor pieces are connected by rings, and the armor pieces and airgel cotton are High-strength aramid fibers are restrained and fixed, which can ensure that the armor pieces have a certain degree of mobility and meet the rotation needs of normal human activities.

Description of drawings

Figure 1 is a schematic diagram of the hazard suit.

Figure 2 is a schematic diagram of the results of the armor sheet.

Figure 3 is a schematic plan view of the armor sheet stacking method.

Figure 4 is a schematic diagram of the overall structure of the armor piece.

Figure 5 is a diagram of the connection mode of the armor sheet.

Figure 6 is a schematic structural view of the surface layer of the armor sheet.

In the figure: 1 armor sheet surface layer, 2 airgel cotton middle layer, 3 sandwich mesh nylon inner layer, 4 upper interlayer, 5 middle sandwich core layer; 6 lower interlayer, 7 adhesive, 8 upper interlayer hole, 9 lower Interlayer hole a, 10 lower hole b, 11 circular thin metal chain, 12 high-strength aramid fiber wire.

Detailed ways

The specific implementation manners of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

A nickel-plated magnetized hollow glass microsphere armor sheet for hazard protection, its specific clothing style is shown in Figure 1, the clothing body fabric layer is divided into armor sheet surface layer 1, 6mm airgel cotton middle layer 2 and 4mm Thick sandwich mesh nylon inner layer3.

The surface armor sheet is mainly composed of upper and lower layers and a sandwich core. The core is a middle sandwich core 5 of a nickel-plated magnetized hollow glass microsphere composite material. Resin infusion molding technology) technology, the high-strength binder matrix is filled into the upper and lower interlayers and sandwich layers to obtain a high-strength composite material armor sheet.

The manufacturing process of the nickel-plated magnetized hollow glass microspheres is as follows. Firstly, the hollow glass microspheres are subjected to a simple pretreatment. Since the microspheres are extremely small, only simple cleaning is performed to remove the dirt therein; then, the microspheres are left to dry. After drying, evenly spray the activator while turning the microbeads to improve the surface adhesion between the nickel layer and the glass microspheres; secondly, soak the hollow glass microspheres in the electrolyte of nickel sulfate or nickel sulfate for electrodeposition, so that A layer of nickel film is formed on its surface; the hollow glass microspheres after nickel plating are cleaned again to remove the residual activator and electrolyte on the surface; then the dried nickel-plated hollow glass microspheres are put into a stable strong Magnetizing treatment in the magnetic field, so that the magnetic poles of the surface of the microspheres are the same, and there is a certain repulsion between them; finally, the nickel-plated magnetic hollow glass microspheres and epoxy resin are stirred evenly with a filling rate of 40-60%, and made into 0.3-0.5g/ cm ³ composite foam material, and cut into the shape of the armor sheet sandwich layer 5.

The structural stacking form of the armor sheet is as follows, referring to the idea of bionics, referring to the stacking of scales, and determining the parameters of the armor sheet's elevation center angle, elevation arc, central bulge, and edge thickness through mathematical derivation, and obtaining the adjacent The plane position relationship and elevation position relationship between the scales determine the three-dimensional position coordinate expression of the entire protective equipment. By determining the coordinates of a single armor piece, the position coordinates of other armor pieces in the armor system are deduced. In this example, each of the armor pieces described is a circular sheet structure (a circular sheet protruding from the center of the upper and lower surfaces, cutting the upper and lower surfaces to have a certain angle), including an upper sandwich layer 4, a middle sandwich layer 5, The lower interlayer 6, the adhesive 7, the upper and lower interlayers and the middle sandwich layer 5 are fixedly connected by the adhesive 7. The edges of the upper interlayer 4 and the lower interlayer 6 are inclined planes, and the inclination angle is α. All the armor pieces are fixed on the airgel cotton middle layer 2 through the inclined plane of the lower interlayer 6, and the adjacent armor pieces are stacked by the inclined planes. , and finally the armor sheet is stacked on the surface of the airgel cotton middle layer 2 in a scale manner. The specific structural parameters are as follows: the arc diameter of the armor plate is selected as 6cm, the projection length a of the upper and lower interlayer edges in the horizontal direction is a=10mm, the upper surface width b=40mm, the thickness d=3.6mm, and the inclined angle of the edge slope α=20 °, composite Material sandwich thickness c=15mm.

The thickness of the airgel cotton middle layer 2 is 6mm, the thickness of the sandwich mesh nylon inner layer 3 is 4mm, the arc diameter of the armor sheet is 6cm, and the equivalent thickness is 2cm. The equivalent thickness ratio of layer 5 is 1:3, the diameter to thickness ratio of the armor plate is 1:3, the inclination angle of the upper interlayer 4 and the lower interlayer 6 of the armor plate is 20°, that is, the inclination angle of the armor plate when it is installed is 20°, and the coverage angle (the coverage angle refers to the center angle formed by the circular overlapping intersection of the two armor pieces and the center of the armor piece) is 56° for laying.

The upper interlayer of a single armor sheet is provided with a pair of holes 8 that pass through between adjacent ones, and the lower interlayer is provided with a pair of holes 9 and 10 that pass through between adjacent ones. The side of the lower interlayer of the armor piece in contact with the airgel cotton middle layer 2 uses high-strength aramid yarn 12 to pass through a pair of holes 10 through the inside, and is sewn on the airgel cotton middle layer as in the form of conventional buttons. Adjacent lapped armor pieces, use thin metal chains to pass through the upper interlayer hole 8 of one armor piece and the lower interlayer hole 9 of another armor piece to connect to form a ring, so that there is a certain gap between the adjacent armor pieces. The relative activity space can meet the normal activity needs of the wearer.

The above-mentioned embodiment only expresses the implementation mode of the present invention, but can not therefore be interpreted as the limitation of the scope of the patent of the present invention, it should be pointed out that, for those skilled in the art, under the premise of not departing from the concept of the present invention, Several modifications and improvements can also be made, all of which belong to the protection scope of the present invention.

Claims (4)

1. a nickel-plated magnetized hollow glass microsphere armor piece for protection, is characterized in that, described protection clothing is formed by the armor sheet surface layer (1) that a plurality of identical structure armor sheets are stacked, Composed of an airgel cotton middle layer (2) and a sandwich mesh nylon inner layer (3); Each armor piece described is a disc structure, including an upper sandwich layer (4), a middle sandwich layer (5), a lower sandwich layer (6), an adhesive (7), the upper and lower sandwich layers and the middle sandwich layer (5) ) are fixedly connected by an adhesive (7); the edges of the upper interlayer (4) and the lower interlayer (6) are inclined planes with an inclination angle of α, and all armor pieces are fixed by the inclined plane of the lower interlayer (6) On the middle layer of airgel cotton (2), adjacent armor pieces are stacked through inclined planes, and finally the armor pieces are stacked in scales on the surface of the middle layer of airgel cotton (2); the details are as follows: The upper interlayer (4) of the single-piece armor sheet is provided with a through connection hole (8), and the lower interlayer (6) is provided with a connection hole, which are respectively a through hole (9) and a pair of adjacent holes (10 ); the inclined surface of the lower interlayer of the armor piece (6) in contact with the airgel cotton middle layer (2) passes through a pair of holes (10) through the interior through the high-strength aramid fiber thread (12), and is sewed on the same airgel cotton as the button form On the middle layer of collodion (2); adjacent overlapping armor pieces, use metal thin chains (11) to pass through the upper interlayer hole (8) of one armor piece and the lower interlayer hole (9) of the other armor piece The connection forms a ring, so that there is a certain relative activity space between adjacent armor pieces to meet the normal activity needs of the wearer; The core of the armor sheet surface layer (1) is a nickel-plated magnetized hollow glass microsphere composite material; the upper interlayer (4) and the lower interlayer (6) are made of aluminum foil composite glass fiber reinforced plastic material; the middle sandwich layer (5) Nickel-plated magnetized hollow glass microsphere composite material is used; a vacuum-assisted resin infusion molding process is used to fill the high-strength binder matrix into the upper and lower interlayers and the sandwich layer (5) to obtain a high-strength composite armor sheet . 2. The hazard suit of a nickel-plated magnetized hollow glass microsphere armor sheet according to claim 1, wherein the high-strength adhesive is an epoxy resin plus a curing agent. 3. the hazard clothing of a kind of nickel-plated magnetized hollow glass microsphere armor sheet according to claim 1, is characterized in that, the thickness of described airgel cotton middle layer (2) is 6mm, and sandwich mesh nylon The thickness of the inner layer (3) is 4mm, the arc diameter of the armor sheet is 6cm, the equivalent thickness is 2cm, the equivalent thickness ratio of the upper and lower interlayers and the middle sandwich layer (5) is 1:3, the armor The ratio of sheet diameter to thickness is 1:3, the inclination angle of the upper interlayer (4) and lower interlayer (6) of the armor sheet is 20°, and it is laid with a coverage angle of 56°. 4. the hazard clothing of a kind of nickel-plated magnetized hollow glass microsphere armor sheet according to claim 1, is characterized in that, the concrete preparation method of described nickel-plated magnetized hollow glass microsphere composite material is: through hollow After surface pretreatment and activation treatment, the glass microspheres are soaked in nickel ion electrolyte to form a layer of nickel film, and then cleaned to remove residual activator and electrolyte on the surface, and finally nickel-plated hollow glass microspheres Put it into a stable strong magnetic field for magnetization, fully stir it with the resin after the production is completed, add a curing agent, solidify to form a composite foam material, and cut it into the shape of the sandwich layer (5) in the middle of the armor sheet.