CN113551559B - Multi-cellular soft material filled with shear thickening fluid, laminated protective structure and preparation method - Google Patents
Multi-cellular soft material filled with shear thickening fluid, laminated protective structure and preparation method Download PDFInfo
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- CN113551559B CN113551559B CN202110702612.5A CN202110702612A CN113551559B CN 113551559 B CN113551559 B CN 113551559B CN 202110702612 A CN202110702612 A CN 202110702612A CN 113551559 B CN113551559 B CN 113551559B
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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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
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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
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
- F41H5/04—Plate construction composed of more than one layer
- F41H5/0492—Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
Abstract
The invention discloses a multi-cell soft material filled with shear thickening fluid, a laminated protection structure design of a multi-cell hard surface layer and a preparation method thereof, so that in the process of impact load on the structure, the impact toughness effect of the hard surface layer and the shear thickening fluid can effectively resist impact penetration, the impact damage of single cells of the hard surface layer cannot be transmitted to other hard cells, and the integral structure can be ensured to bear secondary or multiple impact resistance at different cell location points. Meanwhile, when the impact load acts, the structure of the multi-cell soft material deforms, the whole hard multi-cell surface layer moves along with the soft layer, and the flow of the shear thickening liquid can effectively consume impact energy, so that the subsequent damage to a human body caused by the impact action is avoided. The overall structural form can effectively resist the impact action and ensure certain flexibility.
Description
Technical Field
The invention relates to the technical field of protective articles, in particular to a multi-cell soft material filled with shear thickening fluid, a laminated protective structure and a preparation method.
Background
Along with the improvement of the requirement on the safety protection of the human body in the anti-terrorism, anti-explosion and other emergency disposal processes, new requirements are provided for the structural form and the performance of the human body protection equipment. Although the existing human body protection equipment with the structure can protect gunshot and stabs to a certain degree, the existing human body protection equipment still has many defects. The body protective equipment of traditional stereoplasm structural style is mostly heavier, and the main part protective area is more hard, can influence the mobility of wearer to a certain extent. Body protection equipment in the form of a purely rigid structure also has the disadvantage that, even if it is effective against penetration of bullets, it does not allow rapid dissipation of the impact energy, i.e. does not inhibit non-penetrating impact damage to the body. The protective structure made of high-strength fiber fabric materials such as para-aramid and the like has certain flexibility, but is also insufficient in the aspect of avoiding non-penetrating impact damage.
Disclosure of Invention
The invention aims to provide a multi-cellular soft material filled with shear thickening fluid, a laminated protective structure and a preparation method, and aims to solve the problems that the existing human body protective equipment made of materials and structural forms in the background art is not flexible and cannot avoid non-penetrating damage.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-cellular soft material filled with shear thickening fluid comprises the shear thickening fluid, wherein the shear thickening fluid adopts hydrophilic gas phase nano silicon dioxide as a disperse phase and consists of spherical primary particles, the maximum average particle size of the primary particles is 40nm, and the specific surface area is 50 +/-15 m < 2 >/g; polyethylene glycol is selected as a dispersion medium, and the average molecular weight is 200; the mass fraction of the hydrophilic gas phase nano silicon dioxide is 35 to 45 percent based on 100 percent of the mass of the shear thickening fluid;
preparing addition type silica gel with a multi-cell soft material structure, wherein the addition type silica gel consists of two parts, namely an A-component base gel and a B-component platinum catalyst, wherein the ratio of the base gel component to the platinum catalyst is 1:1;
the utility model provides a multiloc software lamination protective structure that shear thickening liquid was filled, includes through in the aforesaid multiloc software laminating material that a shear thickening liquid was filled still includes multiloc software material structure and polyethylene panel, multiloc software material structure passes through the adhesive and bonds fixedly with the polyethylene panel that forms the light surface course of stereoplasm, the avris of multiloc software material structure is equipped with a plurality of UNICOM's formula filling holes that are used for the intercommunication each other of multiloc software and realize shear thickening liquid and fill, the filling hole passes through packaging structure encapsulation.
A method for preparing a shear thickening fluid-filled multi-cellular soft laminate protective structure, comprising the steps of preparing a shear thickening fluid-filled multi-cellular soft laminate protective structure as described above, and further comprising:
s1, preparing a shear thickening liquid;
s2, preparing a multi-cell soft material structure;
s3, preparing a multi-cell soft material structure filled with the shear thickening fluid;
and S4, preparing the multi-cell soft material filled with the shear thickening fluid and the laminated protective structure.
In order to prepare the structure of the multi-cell soft material, the invention adopts a preferable scheme that: the preparation of the shear thickening fluid in the step S1 comprises the following steps: the first step is as follows: weighing the mass of each raw material correspondingly required by taking the mass as percentage; the second step is that: pouring polyethylene glycol 200 into a beaker, reserving a part of the polyethylene glycol, placing the beaker under a stirrer, and immersing a stirring paddle; the third step: adding a small amount of hydrophilic fumed silica into a beaker filled with polyethylene glycol 200, starting a stirrer to stir continuously, and adding the hydrophilic fumed silica into the beaker again after stirring uniformly; the fourth step: in the later stage of adding silicon dioxide, the stirring resistance is continuously increased along with the increase of the mass fraction, and at the moment, a small amount of the reserved polyethylene glycol 200 is added in batches until the silicon dioxide powder is completely dissolved in the polyethylene glycol 200; the fifth step: placing the prepared shear thickening fluid into a reagent bottle for sealed preservation; the preparation of the multicellular soft material structure in the step S2 comprises the following steps: firstly, preparing a paraffin mold by adopting a paraffin wax melting mold technology, placing paraffin in a vacuum drying box, setting the temperature to be 150 ℃, taking out the paraffin from the vacuum drying box after the paraffin is melted, quickly injecting the paraffin into a mold, cooling and solidifying the paraffin, and stripping to obtain the paraffin mold; mixing the base rubber component of the addition type silica gel and the platinum catalyst component according to the proportion of 1:1, stirring for about 5 minutes by hand or by using stirring equipment such as an electric drill and the like, slowly pouring the stirred silicon rubber into a container provided with a paraffin mold, placing the container in a relatively closed environment, and curing at room temperature or heating; after the silicon rubber is vulcanized and molded, the silicon rubber is placed into a vacuum drying oven, the temperature is set to be 150 ℃, paraffin is melted out at high temperature, and the multi-cell soft material structure is obtained.
In order to fill the shear thickening fluid, as a preferred embodiment of the present invention: and in the process of preparing the multi-cell soft material structure in the step S2, a perfusion hole of the shear thickening fluid is reserved.
In order to prepare the multi-cell soft material structure filled with the shear thickening fluid, the invention is a preferable scheme that: the preparation of the multicellular soft material structure filled with the shear thickening fluid in the step S3 comprises the following steps: the shear thickening liquid is filled into a multi-cell soft structure with a porous communication structure by using a booster, and the filling holes of the shear thickening liquid are sealed by silica gel made of the same material through a special adhesive for the silica gel to form a packaging structure.
In order to prepare the multi-cell soft laminated protective structure filled with the shear thickening fluid, the invention adopts a preferable scheme that: the preparation of the multi-cell soft laminated protective structure filled with the shear thickening fluid in the step S4 comprises the following steps: and adhering a polyethylene panel to the outer surface of the multi-cell soft material structure filled with the shear thickening fluid by using an adhesive, and curing the adhesive to obtain the multi-cell soft laminated protective structure filled with the shear thickening fluid.
Compared with the prior art, the invention has the beneficial effects that:
1) Through the design of the hard surface layer of the multi-cell, the transmission of single-cell damage is avoided, so that the damage of a single cell caused by strong impact load cannot damage adjacent cells, the local effective penetration resistance can be achieved, the impact energy can be consumed to a certain extent due to the rigid motion of the whole hard cell associated with the flexible layer in response to the whole structure, the effect of the impact load on the human body after-effect damage can be avoided, the multi-cell impact resistance can be realized, and the structure can be ensured to have certain flexibility;
2) The structure form of the multi-cellular soft material can achieve better energy absorption and impact resistance effects, the shear thickening fluid filled in the multi-cellular soft material can improve the impact resistance of the whole structure through impact toughness when being impacted, meanwhile, when the multi-cellular soft material structure is impacted, part of impact energy is converted into extrusion deformation of a cellular cell communicated hole structure and flowing of the shear thickening fluid, the energy dissipation effect is achieved, and the non-loaded multi-cellular soft material structure and the shear thickening fluid with better fluidity ensure that the layer structure has certain flexibility;
3) Through the design of the soft-hard laminated structure of the hard surface layer and the multi-cell soft material structure filled with the shear thickening fluid, the protective structure has the characteristics of high impact resistance, puncture resistance and high impact energy absorption ratio, has the characteristics of convenience and light weight, and provides reference and technical support for the improvement of protective equipment.
Drawings
FIG. 1 is a schematic view of a shear thickening fluid filled multi-cellular soft material, laminated protective structure of the present invention;
FIG. 2 is a flow chart of a method of making a shear thickening fluid-filled cellular soft body material, laminated protective structure of the present invention;
FIG. 3 is a top view of the shear thickening fluid filled multi-cellular soft body material, laminated protective structure of FIG. 1;
FIG. 4 is a half sectional view of the multi-cellular soft body material, laminated protective structure filled with shear thickening fluid of FIG. 1;
FIG. 5 is a schematic view of the structure of a shear thickening fluid filled multi-cellular soft body material in a laminated protective structure according to the present invention;
FIG. 6 is a side view of the structure of the multi-cell soft body material shown in FIG. 5;
FIG. 7 is a top view of the structure of the multi-cellular soft body material shown in FIG. 5;
FIG. 8 is a sectional view of the structure A of the multi-cellular soft body material shown in FIG. 6;
FIG. 9 is a sectional view of the structure B of the multi-cellular soft body material shown in FIG. 7;
FIG. 10 is a schematic diagram of the packaging of the multi-cell soft body material structure;
FIG. 11 is a schematic view of the shear-filled region in the structure of the multi-cellular soft body material shown in FIG. 5.
In the figure: 1. a multi-cell soft material structure; 2. a polyethylene panel; 3. an adhesive; 4. a packaging structure; 5. shearing the thickening fluid.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-11, the present invention provides a technical solution: a multi-cellular soft material filled with shear thickening fluid comprises shear thickening fluid 5, wherein the shear thickening fluid 5 adopts hydrophilic gas phase nano silicon dioxide as a disperse phase and consists of spherical primary particles, the maximum average particle size of the primary particles is 40nm, and the specific surface area is 50 +/-15 m < 2 >/g; polyethylene glycol is selected as a dispersion medium, and the average molecular weight is 200; the mass fraction of the hydrophilic gas-phase nano silicon dioxide is 35 to 45 percent based on 100 percent of the mass of the shear thickening liquid 5;
preparing addition type silica gel of a multi-cell soft material structure 1, wherein the addition type silica gel consists of two parts, namely a base rubber component A and a platinum catalyst component B, wherein the ratio of the base rubber component to the platinum catalyst component is 1:1;
a multi-cell soft body laminating protection structure filled with shear thickening fluid comprises a multi-cell soft body laminating material filled with the shear thickening fluid, and further comprises a multi-cell soft body material structure 1 and a polyethylene panel 2, wherein the multi-cell soft body material structure 1 is fixedly bonded with the polyethylene panel 2 forming a hard light surface layer through an adhesive 3, a plurality of communicated filling holes used for enabling the multi-cell soft bodies to be mutually communicated and realizing the filling of the shear thickening fluid 5 are formed in the side of the multi-cell soft body material structure 1, and the filling holes are packaged through a packaging structure 4.
A method for preparing a shear thickening fluid-filled multi-cellular soft laminate protective structure, comprising the steps of preparing one of the shear thickening fluid-filled multi-cellular soft laminate protective structures, and further comprising:
s1, preparing a shear thickening liquid 5;
s2, preparing a multi-cell soft material structure 1;
s3, preparing a multi-cell soft material structure 1 filled with the shear thickening fluid 5;
and S4, preparing the multi-cell soft laminated protective structure filled with the shear thickening liquid 5.
In this embodiment: the preparation of the shear thickening fluid 5 in the step S1 comprises the following steps: the first step is as follows: weighing the mass of each raw material correspondingly required by mass percentage; the second step is that: pouring polyethylene glycol 200 into a beaker, reserving a part of the polyethylene glycol, placing the beaker under a stirrer, and immersing a stirring paddle; the third step: adding a small amount of hydrophilic fumed silica into a beaker filled with polyethylene glycol 200, starting a stirrer to stir continuously, and adding the hydrophilic fumed silica into the beaker again after stirring uniformly; the fourth step: in the later stage of adding silicon dioxide, the stirring resistance is continuously increased along with the increase of the mass fraction, and at the moment, a small amount of the reserved polyethylene glycol 200 is added in batches until the silicon dioxide powder is completely dissolved in the polyethylene glycol 200; the fifth step: placing the prepared shear thickening liquid 5 into a reagent bottle for sealed preservation; the preparation of the multi-cell soft material structure 1 in the step S2 comprises the following steps: preparing a paraffin mold by adopting a paraffin wax melting mold technology, placing paraffin in a vacuum drying oven at a set temperature of 150 ℃, taking out the paraffin from the vacuum drying oven after the paraffin is melted, quickly injecting the paraffin into a mold, cooling and solidifying, and stripping to obtain the paraffin mold; mixing a base rubber component of the addition type silica gel and a platinum catalyst component according to the proportion of 1:1, stirring for about 5 minutes by hand or by using stirring equipment such as an electric drill and the like, slowly pouring the stirred silicon rubber into a container provided with a paraffin mold, placing the container in a relatively closed environment, and curing at room temperature or heating; after the silicon rubber is vulcanized and molded, the silicon rubber is placed into a vacuum drying oven, the temperature is set to be 150 ℃, paraffin is melted out at high temperature, a multi-cell soft material structure 1 is obtained, and in the process of preparing the multi-cell soft material structure 1 in the step S2, an injection hole of the shear thickening fluid 5 is reserved.
Specifically, the structure adopted by the multi-cell soft material structure 1 can avoid the transmission of single-cell damage, so that the damage of a single cell subjected to strong impact load can not damage adjacent cells, the effect of locally and effectively resisting penetration is achieved, the impact energy can be effectively consumed on the whole, the effect of causing aftereffect damage to a human body is avoided, the multi-cell soft material structure has the performance of multiple times of impact resistance, and the structure can be ensured to have certain flexibility
In this embodiment: the preparation of the multicellular soft material structure 1 filled with the shear thickening fluid 5 in the step S3 comprises the following steps: the shear thickening liquid 5 is filled into a multi-cell soft material structure 1 with a porous communication structure by using a booster, and the filling hole of the shear thickening liquid 5 is sealed by silica gel made of the same material through a silica gel special adhesive 3 to form a packaging structure 4.
Specifically, the structure form of porous UNICOM can reach better energy-absorbing and shock resistance effect, and shear thickening liquid 5 of filling in inside can be with the multilocular structure receive impact action when with partial impact energy conversion for the extrusion deformation of pore structure and the flow of viscous fluid, play the effect of energy dissipation.
In this embodiment: the preparation of the multi-cell soft laminated protective structure filled with the shear thickening fluid 5 in the step S4 comprises the following steps: the polyethylene panel 2 is adhered to the outer surface of the multi-cell soft material structure 1 filled with the shear thickening fluid 5 by using the adhesive 3, and the multi-cell soft material laminated protective structure filled with the shear thickening fluid 5 is obtained after the adhesive 3 is cured.
Specifically, through the soft-hard laminated structure design of the polyethylene panel 2 of the hard light surface layer and the multi-cell soft material structure 1 filled with the shear thickening liquid 5, the protective structure is ensured to have the characteristics of high impact resistance and puncture resistance and high impact energy absorption ratio, convenience and light weight, and reference and technical support are provided for the improvement of protective equipment.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes, modifications, equivalents, and improvements may be made without departing from the spirit and scope of the invention.
Claims (3)
1. A preparation method of a multi-cell soft body laminating protective structure filled with shear thickening fluid is characterized in that: the method comprises the following steps:
s1, preparing a shear thickening liquid (5);
s2, preparing a multi-cell soft material structure (1);
s3, preparing a multi-cell soft material structure (1) filled with the shear thickening fluid (5);
s4, preparing a multi-cell soft laminated protective structure filled with the shear thickening liquid (5);
the preparation of the shear thickening fluid (5) in the step S1 comprises the following steps: the first step is as follows: weighing the mass of each raw material correspondingly required by taking the mass as percentage; the second step: pouring polyethylene glycol 200 into a beaker, reserving a part of the polyethylene glycol, placing the beaker under a stirrer, and immersing a stirring paddle; the third step: adding a small amount of hydrophilic fumed silica into a beaker filled with polyethylene glycol 200, starting a stirrer to stir continuously, and adding the hydrophilic fumed silica into the beaker again after stirring uniformly; the fourth step: in the later stage of adding silicon dioxide, the stirring resistance is continuously increased along with the increase of the mass fraction, and then the polyethylene glycol 200 reserved in advance is added in batches in small amount until the silicon dioxide powder is completely dissolved in the polyethylene glycol 200; the fifth step: placing the prepared shear thickening liquid (5) into a reagent bottle for sealed preservation; the preparation of the multi-cell soft material structure (1) in the step S2 comprises the following steps: preparing a paraffin mold by adopting a paraffin wax melting mold technology, placing paraffin in a vacuum drying oven at a set temperature of 150 ℃, taking out the paraffin from the vacuum drying oven after the paraffin is melted, quickly injecting the paraffin into a mold, cooling and solidifying, and stripping to obtain the paraffin mold; mixing a base rubber component of the addition type silica gel and a platinum catalyst component according to the proportion of 1:1, stirring for about 5 minutes by hand or by using electric drill stirring equipment, slowly pouring the stirred silicon rubber into a container provided with a paraffin mold, placing the container in a relatively closed environment, and curing at room temperature or heating for curing; after the silicon rubber is vulcanized and molded, putting the silicon rubber into a vacuum drying oven, setting the temperature at 150 ℃, and melting paraffin at high temperature to obtain a multi-cell soft material structure (1);
in the process of preparing the multi-cell soft material structure (1) in the step S2, a perfusion hole of the shear thickening liquid (5) is reserved;
the preparation of the multi-cell soft material structure (1) filled with the shear thickening fluid (5) in the step S3 comprises the following steps: the shear thickening liquid (5) is filled into a multi-cell soft material structure (1) with a porous communication structure by using a booster, and the filling hole of the shear thickening liquid (5) is sealed by silica gel of the same material through a silica gel special adhesive (3) to form a packaging structure (4);
the preparation of the multi-cell soft laminated protective structure filled with the shear thickening fluid (5) in the step S4 comprises the following steps: the polyethylene panel (2) is adhered to the outer surface of the multi-cell soft material structure (1) filled with the shear thickening fluid (5) by using the adhesive (3), and the multi-cell soft laminated protective structure filled with the shear thickening fluid (5) is obtained after the adhesive (3) is solidified.
2. A multiloc soft material structure that shear thickening fluid was filled which characterized in that: the shear thickening fluid (5) is characterized by comprising a shear thickening fluid (5), wherein the shear thickening fluid (5) selects hydrophilic gas phase nano silicon dioxide as a dispersion phase and consists of spherical primary particles, the maximum average particle size of the primary particles is 40nm, and the specific surface area is 50 +/-15 m < 2 >/g; selecting polyethylene glycol as a dispersion medium, wherein the average molecular weight is 200; the mass fraction of the hydrophilic gas phase nano silicon dioxide is 35 to 45 percent based on 100 percent of the mass of the shear thickening liquid (5); preparing addition type silica gel of a multi-cell soft material structure (1), wherein the addition type silica gel consists of two parts, namely an A-component base gel and a B-component platinum catalyst, wherein the ratio of the base gel component to the platinum catalyst component is 1:1;
the specific preparation of the structure of the multi-cell soft material filled with the shear thickening fluid comprises the following preparation steps:
s1, preparing a shear thickening liquid (5);
s2, preparing a multi-cell soft material structure (1);
s3, preparing a multi-cell soft material structure (1) filled with the shear thickening fluid (5);
the preparation of the shear thickening fluid (5) in the step S1 comprises the following steps: the first step is as follows: weighing the mass of each raw material correspondingly required by taking the mass as percentage; the second step is that: pouring polyethylene glycol 200 into a beaker, reserving a part of the polyethylene glycol, placing the beaker under a stirrer, and immersing a stirring paddle; the third step: adding a small amount of hydrophilic fumed silica into a beaker filled with polyethylene glycol 200, starting a stirrer to stir continuously, and adding the hydrophilic fumed silica into the beaker again after stirring uniformly; the fourth step: in the later stage of adding silicon dioxide, the stirring resistance is continuously increased along with the increase of the mass fraction, and then the polyethylene glycol 200 reserved in advance is added in batches in small amount until the silicon dioxide powder is completely dissolved in the polyethylene glycol 200; the fifth step: placing the prepared shear thickening liquid (5) into a reagent bottle for sealed preservation; the preparation of the multi-cell soft material structure (1) in the step S2 comprises the following steps: firstly, preparing a paraffin mold by adopting a paraffin wax melting mold technology, placing paraffin in a vacuum drying box, setting the temperature to be 150 ℃, taking out the paraffin from the vacuum drying box after the paraffin is melted, quickly injecting the paraffin into a mold, cooling and solidifying the paraffin, and stripping to obtain the paraffin mold; mixing a base rubber component of the addition type silica gel and a platinum catalyst component according to the proportion of 1:1, stirring for about 5 minutes by hand or by using electric drill stirring equipment, slowly pouring the stirred silicon rubber into a container provided with a paraffin mold, placing the container in a relatively closed environment, and curing at room temperature or heating for curing; after the silicon rubber is vulcanized and molded, putting the silicon rubber into a vacuum drying oven, setting the temperature at 150 ℃, and melting paraffin at high temperature to obtain a multi-cell soft material structure (1);
in the process of preparing the multi-cell soft material structure (1) in the step S2, a pouring hole of the shear thickening fluid (5) is reserved;
the preparation of the multi-cell soft material structure (1) filled with the shear thickening fluid (5) in the step S3 comprises the following steps: the shear thickening liquid (5) is filled into a multi-cell soft material structure (1) with a porous communication structure by using a booster, and the filling hole of the shear thickening liquid (5) is sealed by silica gel made of the same material through a special adhesive (3) for the silica gel to form a packaging structure (4).
3. A shear thickening fluid-filled multi-cellular soft body laminate protective structure comprising a shear thickening fluid-filled multi-cellular soft body material structure of claim 2, wherein: still include polyethylene panel (2), the multiloc software material structure passes through adhesive (3) and bonds fixedly with polyethylene panel (2) that form the stereoplasm surface course, the avris of the multiloc software material structure (1) is equipped with a plurality of UNICOM's formula irrigation holes that are used for the intercommunication each other of multiloc software and realize shear thickening liquid (5) and fill, the irrigation hole passes through packaging structure (4) encapsulation.
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| CN107629465B (en) * | 2017-10-18 | 2020-05-22 | 中国工程物理研究院化工材料研究所 | Silicone rubber impact-resistant energy-absorbing material and preparation method thereof |
| CN207600298U (en) * | 2017-12-21 | 2018-07-10 | 中国人民解放军国防科技大学 | Composite bulletproof assembly |
| CN108274840A (en) * | 2018-01-24 | 2018-07-13 | 中国工程物理研究院化工材料研究所 | A kind of shear thickening gel/3 D weaving energy-absorbing material and preparation method thereof |
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