CN115669678A - Antibacterial element, manufacturing method of antibacterial element and wearing equipment - Google Patents
Antibacterial element, manufacturing method of antibacterial element and wearing equipment Download PDFInfo
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- CN115669678A CN115669678A CN202110830972.3A CN202110830972A CN115669678A CN 115669678 A CN115669678 A CN 115669678A CN 202110830972 A CN202110830972 A CN 202110830972A CN 115669678 A CN115669678 A CN 115669678A
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- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 283
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 180
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims description 205
- 230000000845 anti-microbial effect Effects 0.000 claims description 85
- 230000005684 electric field Effects 0.000 claims description 49
- 125000000962 organic group Chemical group 0.000 claims description 36
- 239000011159 matrix material Substances 0.000 claims description 34
- 239000003242 anti bacterial agent Substances 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 11
- 239000004599 antimicrobial Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000005504 styryl group Chemical group 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 241000894006 Bacteria Species 0.000 abstract description 6
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- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 69
- 230000003115 biocidal effect Effects 0.000 description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000000741 silica gel Substances 0.000 description 9
- 229910002027 silica gel Inorganic materials 0.000 description 9
- 238000009826 distribution Methods 0.000 description 7
- 230000005012 migration Effects 0.000 description 6
- 238000013508 migration Methods 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 5
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- 238000009775 high-speed stirring Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
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Abstract
The application discloses an antibacterial element, a manufacturing method of the antibacterial element and wearing equipment. The antibacterial element comprises a substrate and antibacterial metal ions, the substrate comprises a first surface and a second surface, the antibacterial metal ions are arranged in the substrate in a mixed mode, and the density of the antibacterial metal ions is gradually increased along the direction from the first surface to the second surface. Therefore, the substrate mixed with the antibacterial metal ions can effectively control the breeding of bacteria, when the substrate of the antibacterial element is made of an abrasion-resistant material, the second surface can be set to be a surface in contact with the skin, and the antibacterial metal ions can be prevented from falling off and affecting the antibacterial effect due to the fact that the density of the antibacterial metal ions on the second surface is the largest and the second surface rubs with the skin for a long time; when the basal body of the antibacterial element is made of an easily-worn material, the first surface can be set to be a surface in contact with the skin, and because the density of antibacterial metal ions on the first surface is the minimum, the antibacterial effect can be gradually improved even if the antibacterial element is worn in the use process.
Description
Technical Field
The application relates to the technical field of antibacterial products, in particular to an antibacterial element, a manufacturing method of the antibacterial element and wearing equipment.
Background
Along with the high-speed development of electronic equipment, intelligent wearing equipment also gradually steps into people's the field of vision. Most of the intelligent wearable devices achieve the wearing function through silica gel products, for example, earcaps of earphones, watchbands of watches and the like. The silica gel product is soft in texture and comfortable to wear, but is easy to breed bacteria to influence human health after being contacted with skin for a long time.
Disclosure of Invention
The application embodiment provides an antibacterial element, a manufacturing method of the antibacterial element and wearing equipment.
The antibacterial member of the embodiment of the present application includes a substrate and antibacterial metal ions. The substrate includes a first surface and a second surface. The antibacterial metal ions are arranged in the substrate in a mixed mode, and the density of the antibacterial metal ions is gradually increased along the direction from the first surface to the second surface.
In the antibiotic component of this application embodiment, antibiotic component's manufacturing method and wearing equipment, the breed that has antibiotic metal ion can effective control bacterium in the base member, and simultaneously, along the direction of first surface to the second surface, antibiotic metal ion's density increases gradually, so, when antibiotic component's base member is the wearability material, can set up the second surface into the surface with skin contact, because the antibiotic metal ion's of second surface density is the biggest, can prevent that the second surface from leading to antibiotic metal ion to drop through long-time and skin friction, influence antibiotic effect. When the basal body of the antibacterial element is made of an easily-worn material, the first surface can be set to be a surface in contact with the skin, and because the density of antibacterial metal ions on the first surface is the minimum, the antibacterial effect can be gradually improved even if the antibacterial element is worn in the use process.
The method for manufacturing the antibacterial element comprises the following steps:
adding an antibacterial agent into a substrate and uniformly mixing, wherein the antibacterial agent contains antibacterial metal ions;
applying an electric field force on the two side surfaces of the mixed matrix to make the antibacterial metal ions migrate in the matrix under the action of the electric field, so that the density of the antibacterial metal ions is gradually increased along the direction of the electric field force to form the antibacterial element.
The wearing device of the embodiment of the present application includes a main body and the antibacterial member of the above embodiment, the antibacterial member being mounted on the main body.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of an antimicrobial element according to an embodiment of the present application;
fig. 2 is a schematic structural view of an antibacterial particle according to an embodiment of the present application;
fig. 3 is a further schematic structural view of an antimicrobial particle according to an embodiment of the present application;
fig. 4 is a schematic flow chart of a method for manufacturing an antibacterial member according to an embodiment of the present application;
fig. 5 is a schematic structural view of an antibacterial element according to an embodiment of the present application in an electric field;
fig. 6 is a schematic flow chart of a method of manufacturing an antimicrobial element according to an embodiment of the present application;
fig. 7 is a perspective view schematically showing a wearing apparatus according to an embodiment of the present application.
Description of the main element symbols:
the antibacterial element 100, the base body 10, the first surface 11, the second surface 12, the antibacterial particles 20, the antibacterial metal ions 21, the organic groups 22, the particle layer 30, the first particle layer 31, the second particle layer 32, the third particle layer 33, the wearable device 200 and the main body 130.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 to 3, an antibacterial element 100 according to an embodiment of the present disclosure includes a substrate 10 and antibacterial metal ions 21. The substrate 10 includes a first surface 11 and a second surface 12. The antibacterial metal ions 21 are mixedly disposed in the substrate 10, and the density of the antibacterial metal ions 21 is gradually increased in a direction from the first surface 11 toward the second surface 12.
In the antibacterial element 100 of the embodiment of the present application, the antibacterial metal ions 21 mixed in the base body 10 can effectively control the growth of bacteria, and meanwhile, the density of the antibacterial metal ions 21 is gradually increased along the direction from the first surface 11 to the second surface 12, so when the base body 10 of the antibacterial element 100 is made of an abrasion-resistant material, the second surface 12 can be set to be a surface in contact with the skin, because the density of the antibacterial metal ions 21 of the second surface 12 is the maximum, the second surface 12 can be prevented from falling off due to long-time friction with the skin, and the antibacterial effect is affected, when the base body 10 of the antibacterial element 100 is made of an easily-abraded material, the first surface 11 can be set to be a surface in contact with the skin, because the density of the antibacterial metal ions 21 of the first surface 11 is the minimum, in the using process, even if abrasion exists, the antibacterial effect can be gradually improved.
Specifically, the antibiotic element 100 performs a function of sterilizing or inhibiting microorganisms mainly by the antibiotic metal ions 21 mixed in the matrix 10.
It can be understood that, in the related art, when the antibacterial treatment is performed on the ear cap and other elements, the hand feeling oil is generally sprayed on the surface or the relatively uniform antibacterial particles are added into the manufactured material while the hand feeling oil is sprayed, however, the hand feeling oil sprayed on the surface is easily worn, which results in the decrease of the antibacterial effect, while when the antibacterial agent is added while the hand feeling oil is sprayed, the cost is relatively high, the antibacterial particles added in the prior art can only be uniformly added, and the particles are easily agglomerated when the antibacterial agent is non-uniform, which results in the poor appearance and affects the antibacterial effect.
In this application, antibiotic metal ion 21 distributes in base member 10 with a gradual change density's mode and makes antibiotic component 100 can remain certain antibiotic effect throughout, has saved the spraying step of feeling the oil, simultaneously, for current even product that adds antibacterial particle, has reduced the use amount of antibiotic metal ion 21 in the single product, the cost is reduced, also can prevent that too much antibiotic metal ion 21 from cohesion and leading to the condition emergence of the bad outward appearance, influence antibiotic effect.
The substrate 10 may be made of silica gel, resin, etc., and the antibacterial metal ions 21 can migrate in the substrate 10 under certain conditions to form a distribution with gradually changing density. Preferably, the matrix 10 made of silica gel enables the antimicrobial metal ions 21 to more easily migrate within the matrix 10 to form a graded density distribution. Of course, the choice of the material of the substrate 10 is not limited in this application, and can be selected according to the practical application scenario of the antibacterial element 100.
In the present application, the "density of the antibacterial metal ions 21" may be understood as the number of the antibacterial metal ions 21 per unit area, and may also be understood as the concentration of the antibacterial metal ions 21.
Wherein, the density of the antibacterial metal ions 21 on the first surface 11 side is less than the density of the antibacterial metal ions 21 on the second surface 12 side, i.e. the antibacterial effect of the second surface 12 is better than that of the first surface 11. Therefore, in practical applications, the second surface 12 can be used as a surface contacting with the outside or the skin, so that the antibacterial effect of the antibacterial element 100 can be better, and the service life of the antibacterial element 100 can be prolonged. For some substrates 10 made of non-abrasive materials, such as a substrate 10 made of silicone, the second surface 12 can be used as the surface that contacts the outside world or the skin to provide a better antimicrobial effect. Of course, for some substrates 10 made of an easily worn material, the first surface 11 may be used as the surface that contacts the outside or the skin, and the antibacterial effect will become better and better when worn. The choice of the outer contact surface of the antimicrobial element 100 is not limited by the present application.
Referring to fig. 1-3, in some embodiments, the antibacterial element 100 includes a plurality of antibacterial particles 20, the antibacterial particles 20 include an organic group 22 and an antibacterial metal ion 21, the organic group 22 is bonded to the antibacterial metal ion 21, and each of the antibacterial particles 20 includes at least one antibacterial metal ion 21 and a plurality of organic groups 22.
In this way, the organic group 22 is bonded with the antibacterial metal ion 21, so that the antibacterial metal ion 21 can be better dissolved and dispersed in the matrix 10, the occurrence of agglomeration is prevented, and meanwhile, the migration time of the antibacterial metal ion 21 in the matrix 10 is reduced.
Specifically, the antibacterial metal ions 21 may be present in a certain valence state in the matrix 10, and the antibacterial metal ions 21 may be combined with the organic groups 22 to be disposed in the matrix 10 in the form of the antibacterial particles 20. The organic group 22 can be well dissolved and dispersed in the matrix 10, so that the antibacterial particles 20 can be well arranged in the matrix 10, and the antibacterial metal ions 21 can be better distributed in the matrix 10 in a certain density gradient. Among them, the binding of the antibacterial metal ion 21 and the organic group 22 may be performed by plasma surface treatment, for example, graft surface treatment, etc.
The monomer antibacterial particles 20 may include a plurality of antibacterial metal ions 21 and a plurality of organic groups 22, and the antibacterial metal ions 21 and the organic groups 22 may be bonded by van der waals force, hydrogen bonding, or the like. Wherein, the bonding number of the antibacterial metal ions 21 and the organic groups 22 is between 3 and 10, that is, each antibacterial metal ion 21 can be bonded with 3 to 10 organic groups 22. For example, 1 antimicrobial metal ion 21 and 5 organic groups 22 are included in a single antimicrobial particle 20; the single antibacterial particle 20 comprises 2 antibacterial metal ions 21 and 7 organic groups 22; the single antibacterial metal ion 21 includes 3 antibacterial metal ions 21 and 8 organic groups 22.
It is understood that when the number of bonding between the antibacterial metal ions 21 and the organic groups 22 is too small, the antibacterial particles 20 are not easily mixed with the matrix 10, and delamination, precipitation, or the like is easily caused. When the bonding number of the antibacterial metal ions 21 and the organic groups 22 is too large, the antibacterial metal ions 21 in the antibacterial particles 20 are not conveniently arranged to affect the actual antibacterial effect, and therefore, in the present application, the bonding number of the antibacterial metal ions 21 and the organic groups 22 is preferably between 3 and 10.
In certain embodiments, the antimicrobial metal ions 21 include Fe 3+ 、Zn 2+ 、Au 2+ 、Ag + At least one of (1). The organic group 22 includes-O-CH 3 and-CH 2 CH 3 At least one of phenyl, cycloalkyl, styryl and methacrylic acid. The organic group 22 may be selected according to the composition of the matrix 10, so that the antibacterial particles 20 can be dissolved and migrated in the matrix 10. The antimicrobial metal ions 21 can be selected according to the actual application scenario of the antimicrobial element 100, so that the antimicrobial element 100 can better cope with the breeding of bacteria and microorganisms. The application is not limited with respect to the specific types of antibacterial metal ions 21 and organic groups 22.
Referring to fig. 1-3, in some embodiments, the plurality of antimicrobial particles 20 form a plurality of particle layers 30 within the substrate 10, and the number of antimicrobial metal ions 21 within each antimicrobial particle 20 in the particle layers 30 increases in a direction from the first surface 11 toward the second surface 12.
As such, the antimicrobial metal ions 21 are within the antimicrobial particles 20, and the density of the antimicrobial metal ions 21 in the particle layer 30 near the second surface 12 is greater than the density of the antimicrobial metal ions 21 in the particle layer 30 near the first surface 11.
Specifically, the antibacterial particles 20 contain different numbers of antibacterial metal ions 21 therein. The antibacterial particles 20 containing more antibacterial metal ions 21 are all located on one side of the substrate 10 close to the second surface 12 to form the particle layer 30, the antibacterial particles 20 containing less antibacterial metal ions 21 are arranged on one side of the substrate 10 close to the first surface 11 to form the particle layer 30, further, the number of the antibacterial metal ions 21 in the substrate 10 is gradually increased from the first surface 11 to the second surface 12, and the density (also concentration) of the antibacterial metal ions 21 is distributed in the substrate 10 in a certain gradient manner, so that the antibacterial effect on one side of the second surface 12 is better.
Referring to fig. 1 to 3, in some embodiments, the plurality of particle layers 30 includes a first particle layer 31, a second particle layer 32, and a third particle layer 33 sequentially arranged in a direction from the first surface 11 to the second surface 12, where the number of antibacterial metal ions 21 of the antibacterial particles 20 in the first particle layer 31 is smaller than the number of antibacterial metal ions 21 of the antibacterial particles 20 in the second particle layer 32, and the number of antibacterial metal ions 21 of the antibacterial particles 20 in the second particle layer 32 is smaller than the number of antibacterial metal ions 21 of the antibacterial particles 20 in the third particle layer 33.
Specifically, the first particle layer 31 may be the particle layer 30 on the side close to the first surface 11 of the base 10, the third particle layer 33 may be the particle layer 30 on the side close to the second surface 12, and the second particle layer 32 may be between the first particle layer 31 and the third particle layer 33. The number of antibacterial metal ions 21 contained in the antibacterial particles 20 in the first particle layer 31, the second particle layer 32, and the third particle layer 33 gradually increases. For example, the first particle layer 31 contains 1 antimicrobial metal ion 21 per antimicrobial particle 20 on average, the second particle layer 32 contains 2 antimicrobial metal ions 21 per antimicrobial particle 20 on average, and the third particle layer 33 contains 3 antimicrobial metal ions 21 per antimicrobial particle 20 on average.
Of course, the three particle layers 30 are just one example, and the number of the particle layers 30 may be set to 3 to 6. Specifically, when the number of the particle layers 30 is greater than 6, the density of the antibacterial metal ions 21 in each particle layer 30 is difficult to control, thereby affecting the antibacterial effect. When the number of the particle layers 30 is less than 3, the antibacterial metal ions 21 in the substrate 10 cannot exhibit a gradient effect due to the difference in density. The number of the particle layers 30 can be set according to actual requirements, which is not limited in this application.
Referring to fig. 1, in some embodiments, the third particle layer 33 satisfies the following relationship:
2.0≤A 3 ≤4.0；
wherein A is 3 ＝N 3 /S 3 ，A 3 Is the density, N, of the antimicrobial metal ions 21 of the third particle layer 33 3 The number of antimicrobial metal ions 21, S, of the third particle layer 33 3 The number of antimicrobial particles 20 of the third particle layer 33.
Specifically, it can be found from the above relation that 80% to 90% of the antibacterial particles 20 in the third particle layer 33 contain 3 antibacterial metal ions 21,5% to 10% of the antibacterial particles 20 contain 2 antibacterial metal ions 21, and the rest of the antibacterial particles 20 may contain 1, 4 or more than 4 antibacterial metal ions 21, for example, the antibacterial particles 20 containing 1 or 4 antibacterial metal ions 21 may account for 40% and 30% of the number of the rest of the antibacterial particles 20. Preferably, A 3 May be in the range of 2.785-3.185, which enables the third particle layer 33 to ensure a stable antibacterial effect.
Referring to fig. 1, in some embodiments, the second particle layer 32 satisfies the following relationship:
1.0≤A 2 ≤3.0；
wherein, A 2 ＝N 2 /S 2 ，A 2 Is the density, N, of the antimicrobial metal ions 21 of the second particle layer 32 2 The number of antimicrobial metal ions 21, S, of the second particle layer 32 2 The number of antimicrobial particles 20 of second particle layer 32.
Specifically, it can be found from the above relation that 80% to 90% of the antibacterial particles 20 in the second particle layer 32 contain 2 antibacterial metal ions 21,5% to 10% of the antibacterial particles 20 contain 3 antibacterial metal ions 21, and the rest of the antibacterial particles 20 contain 1 antibacterial metal ion 21. Preferably, A 2 Can be within a range ofSo that the content of the antimicrobial metal ions 21 decreases between 1.875 and 2.125, so that the second particle layer 32 and the third particle layer 33 have a density gradient.
Referring to fig. 1, in some embodiments, the first particle layer 31 satisfies the following relationship:
0≤A 1 ≤2.0；
wherein A is 1 ＝N 1 /S 1 ，A 1 Is the density, N, of the antimicrobial metal ions 21 of the first particle layer 31 1 The number of antimicrobial metal ions 21, S, of the first particle layer 31 1 The number of antimicrobial particles 20 of the first particle layer 31.
Specifically, it can be found from the above relational expression that 80% to 90% of the antibacterial particles 20 in the first particle layer 31 contain 1 antibacterial metal ion 21,5% to 10% of the antibacterial particles 20 contain 2 antibacterial metal ions 21. Preferably, A 1 The range of (2) can be 0.92-1.02, the first particle layer 31 and the second particle layer 32 have a certain density gradient, and the first particle layer 31 can be arranged as an inner layer of the antibacterial element 100, so that the antibacterial element does not need to be in contact with the outside or the skin, and further, a large amount of antibacterial metal ions 21 are not needed to be distributed on the first particle layer 31, and the manufacturing cost of the antibacterial element 100 is reduced.
In certain embodiments, antimicrobial particles 20 have a particle size of 50 to 200 μm.
The antibacterial particles 20 contain different amounts of antibacterial metal ions 21 and organic groups 22, but since the single antibacterial metal ions 21 and organic groups 22 are micron-sized elements and the difference between the amounts of the antibacterial metal ions 21 and organic groups 22 in the antibacterial particles 20 is not large, the particle size of each antibacterial particle 20 is similar. For example, the particle diameter of the antibacterial particles 20 is 75 μm, 100 μm, 125 μm, 150 μm, 175 μm, or the like.
In certain embodiments, the particle layer 30 has a thickness of 75-500 μm.
In theory, the antibacterial particles 20 in the particle layer 30 may be arranged in parallel, that is, the thickness of the particle layer 30 may be the same as the particle size of the antibacterial particles 20, and the thickness of the particle layer 30 may be 50-200 μm. However, in practical cases, the antibacterial particles 20 in the particle layer 30 may be stacked, dispersed, etc., and thus, the thickness of the single-layer particle layer 30 may be 150% to 250% of the particle size of the single antibacterial particle 20, i.e., the thickness of the particle layer 30 may be 75 to 500 μm. The thickness of the particle layer 30 is not limited in the present application, and is determined according to the distribution of the antibacterial particles 20 in an actual situation.
Referring to fig. 4 and 5, a method for manufacturing an antibacterial element 100 according to an embodiment of the present disclosure includes:
s10: adding an antibacterial agent into the substrate 10 and uniformly mixing, wherein the antibacterial agent contains antibacterial metal ions 21;
s20: an electric field force E is applied to both side surfaces of the mixed base 10 to make the antibacterial metal ions 21 migrate in the base 10 under the action of the electric field, so that the density of the antibacterial metal ions 21 is gradually increased along the direction of the electric field force E to form the antibacterial element 100.
In this way, the antibacterial metal ions 21 in the matrix 10 can be migrated according to the characteristic that the antibacterial metal ions can migrate under the action of the electric field force E so that the antibacterial metal ions 21 can be distributed in the matrix 10 in a gradient density manner.
Specifically, when an electric field is applied to two ends of the substrate 10, the antibacterial metal ions 21 have a certain electric potential in the electric field, and the antibacterial metal ions 21 can migrate in the substrate 10 at a certain rate under the action of the electric field force E, so that different densities can be formed in the substrate 10.
In step S10, the substrate 10 may be a silica gel colloid, the antibacterial agent is added to the silica gel colloid, and then the silica gel colloid is placed in a stirrer at a certain temperature for high-speed stirring so that the antibacterial agent can be fully mixed with the silica gel colloid to uniformly distribute the antibacterial metal ions 21 in the substrate 10, the stirring temperature is not higher than the melting and softening temperature of the substrate 10, when the substrate 10 is the silica gel colloid, the stirring temperature may be less than 180 ℃ to 210 ℃, it can be understood that the higher the stirring temperature is, the faster the migration speed of the antibacterial metal ions 21 in the substrate 10 is, and further the antibacterial metal ions 21 can be distributed more uniformly. The determination may be made specifically based on the melt softening temperature of the material of the substrate 10. It will be appreciated that after the uniform stirring is completed, the mixed matrix 10 having a specific shape can be formed, and when the antibacterial film is required to be manufactured, the mixed matrix has a specific layer shape.
In step S20, the substrate 10 mixed uniformly may be placed between two electrodes disposed oppositely, the first surface 11 of the substrate 10 corresponds to one end connected to the positive electrode, the second surface 12 corresponds to one end connected to the negative electrode, and then the electric field force E can drive the antibacterial metal ions 21 to migrate from the first surface 11 to one side of the second surface 12, and the density of the antibacterial metal ions 21 is gradually increased from the first surface 11 to the second surface 12.
The voltage between the two electrodes is preferably set to 1-10mV, and the voltage between the two electrodes should not be too large, which may result in too fast migration speed of the antibacterial metal ions 21 and no formation of a better gradient dispersion effect, while too small may result in too slow migration speed, increasing production time and cost, and affecting the manufacturing efficiency of the antibacterial element 100.
The electric field force E is removed, the matrix 10 after migration is shaped, so that the antibacterial metal ions 21 are stably distributed in the matrix 10 in a gradient density distribution manner, and the density of the antibacterial metal ions 21 on the second surface 12 side is greater than that of the antibacterial metal ions 21 on the first surface 11 side, so that the matrix 10 mixed with the bacteriostatic agent is shaped and stabilized to form the antibacterial element 100.
Specifically, in the present application, the antibiotic element 100 may be an antibiotic film or other elements for contacting with a human body, such as an earcap of an earphone, etc. It is understood that, when different antibacterial elements 100 are required to be manufactured, the base 10 after the electric field is applied and the shaping is stabilized may be subjected to a hot-press molding process to form different types and kinds of antibacterial elements 100, such as ear caps of earphones, watch straps, and the like.
Referring to fig. 1-3, in some embodiments, the antimicrobial agent includes a plurality of antimicrobial particles 20, the antimicrobial particles 20 include organic groups 22 and antimicrobial metal ions 21, the organic groups 22 are bonded to the antimicrobial metal ions 21, and each antimicrobial particle 20 includes at least one antimicrobial metal ion 21 and a plurality of organic groups 22.
Specifically, the antibacterial agent mainly plays an antibacterial role by antibacterial metal ions 21. The organic group 22 is bonded and connected with the antibacterial metal ion 21, and the arrangement of the organic group 22 enables the antibacterial metal ion 21 to be better dispersed and migrated in the matrix 10.
Referring to fig. 6, in some embodiments, step S20 includes:
s21: an electric field force E is applied to both side surfaces of the mixed base 10 to cause the antibacterial particles 20 having different numbers of the antibacterial metal ions 21 to migrate within the base 10 at different speeds in the direction of the electric field force E, so that the density of the antibacterial metal ions 21 is gradually increased in the direction of the electric field force E to form the antibacterial element 100.
In the electric field, the antibacterial metal ions 21 are mainly under the action of the electric field force E to drive the entire antibacterial particles 20 to migrate in the substrate 10. The antibacterial particles 20 are uniformly mixed in the matrix 10, and the number of the antibacterial metal ions 21 in each antibacterial particle 20 is different, so that in the same electric field, the electric field force E on the antibacterial particles 20 containing more antibacterial metal ions 21 is larger, and the electric field force E on the antibacterial particles 20 containing less antibacterial metal ions 21 is relatively smaller, so that the moving speed of the antibacterial particles 20 containing more antibacterial metal ions 21 in the matrix 10 is greater than the moving speed of the antibacterial particles 20 containing less antibacterial metal ions 21.
Furthermore, in the same time, along the same direction of the electric field force E, the distance for the antibacterial particles 20 containing a large number of antibacterial metal ions 21 to migrate toward the second surface 12 is large, and the distance for the antibacterial particles 20 containing a small number of antibacterial metal ions 21 to migrate toward the second surface 12 is small, so that the antibacterial particles 20 containing a large number of antibacterial metal ions 21 are all gathered at one side of the second surface 12, and the antibacterial particles 20 containing a small number of antibacterial metal ions 21 are distributed in the matrix 10 in a certain gradient due to the slow moving speed.
It is understood that, before the electric field force E is not applied, since the antibacterial particles 20 are uniformly distributed in the substrate 10, the antibacterial particles 20 near the second surface 12 side contain a certain number of antibacterial particles 20 containing less antibacterial metal ions 21. Further, when the electric force E is applied, a small number of antibacterial particles 20 containing a small amount of antibacterial metal ions 21 are mixed in the antibacterial particles 20 on the side close to the second surface 12.
In some embodiments, in order to ensure that the density of the antibacterial metal ions 21 can be distributed in a gradient manner, step S21 may include:
applying a first electric field force in a direction from the second surface 12 to the first surface 11 for a first preset time, so that all the antibacterial particles 20 move and gather towards the first surface 11 under the action of the first electric field force;
the first electric field force is removed and a second electric field force is applied along the first surface 11 towards the second surface 12 for a second preset time to make the antibacterial particles 20 with different numbers of antibacterial metal ions 21 migrate in the matrix 10 at different speeds along the direction of the second electric field force, so that the density of the antibacterial metal ions 21 is gradually increased along the direction of the second electric field force, which is opposite to the direction of the first electric field force.
Specifically, the antibacterial particles 20 are uniformly distributed in the matrix 10 and the number of the antibacterial metal ions 21 is different in each of the antibacterial particles 20. First, a first electric field force is applied to the antibacterial element 100 along the second surface 12 toward the first surface 11, and under the action of the first electric field force, the antibacterial metal ions 21 drive the antibacterial particles 20 to move toward the first surface 11 along the direction of the first electric field force, and all the antibacterial particles 20 move to one side of the first surface 11 and are collected within a first preset time.
After the first electric field force is cancelled, a second electric field force is applied to the antibacterial element 100 along the first surface 11 to the second surface 12, under the action of the second electric field force, the antibacterial particles 20 containing more antibacterial metal ions 21 move to one side of the second surface 12 at first in a second preset time, and the antibacterial particles 20 containing less antibacterial metal ions 21 move to the second surface 12 in the second preset time but cannot move to one side of the second surface 12.
For example, under the action of the second electric field force, the antibacterial particles 20 containing 3 antibacterial metal ions 21 move to the second surface 12 within the second predetermined time, while the antibacterial particles 20 containing 2 antibacterial metal ions 21 only move to the middle position of the substrate 10 within the second predetermined time, and the antibacterial particles 20 containing 1 antibacterial metal ion 21 still move to the first surface 11 side within a shorter distance within the second predetermined time.
Further, in this embodiment, the antibacterial particles 20 containing a large amount of the antibacterial metal ions 21 are all located on the second surface 12 side, and the number of the antibacterial metal ions 21 in the antibacterial particles 20 is gradually reduced in a distribution manner with a constant gradient along the second surface 12 toward the first surface 11, that is, the density of the antibacterial metal ions 21 is gradually reduced.
It can be understood that in the manufacturing method of the embodiment of the present application, the concentration of the antibacterial metal ions 21 in the antibacterial element 100 is forced to be distributed in a gradient manner by applying an electric field force, and after the electric field is removed, the distribution of the antibacterial metal ions 21 at normal temperature is more stable, the stability is better, the migration and the release cannot occur faster, and the durability of the antibacterial property is improved.
Referring to fig. 7, the wearable device 200 according to the embodiment of the present application includes a main body 130 and the antibacterial element 100 according to any one of the above embodiments, and the antibacterial element 100 is mounted on the main body 130.
In this way, the wearable device 200 with the antibacterial element 100 of the above embodiment can better prevent the growth of bacteria and microbes, and meanwhile, the antibacterial effect of the wearable device is not reduced due to abrasion.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (14)
1. An antimicrobial element, comprising:
a substrate comprising a first surface and a second surface;
the antibacterial metal ions mixed in the matrix are gradually increased in density along the direction from the first surface to the second surface.
2. The antimicrobial element of claim 1, wherein said antimicrobial element comprises a plurality of antimicrobial particles, said antimicrobial particles comprising an organic group and said antimicrobial metal ion, said organic group being ionically bonded to said antimicrobial metal, each of said antimicrobial particles comprising at least one of said antimicrobial metal ion and a plurality of said organic groups.
3. The antimicrobial element of claim 2, wherein a plurality of said antimicrobial particles are formed with a plurality of particle layers within said matrix, the number of said antimicrobial metal ions within each of said antimicrobial particles within said particle layers increasing in a direction from said first surface toward said second surface.
4. The antimicrobial element of claim 3, wherein the plurality of particle layers includes a first particle layer, a second particle layer, and a third particle layer arranged in this order in a direction from the first surface toward the second surface, the antimicrobial metal ions of the antimicrobial particles in the first particle layer being smaller in number than the antimicrobial metal ions of the antimicrobial particles in the second particle layer, the antimicrobial metal ions of the antimicrobial particles in the second particle layer being smaller in number than the antimicrobial metal ions of the antimicrobial particles in the third particle layer.
5. The antimicrobial element of claim 3, wherein the plurality of particle layers includes a first particle layer, a second particle layer, and a third particle layer arranged in that order along the first surface toward the second surface;
the first particle layer satisfies the following relation:
0≤A 1 ≤2.0；
wherein A is 1 ＝N 1 /S 1 ，A 1 Is the density, N, of the antimicrobial metal ions of the first particle layer 1 Is the number of the antibacterial metal ions, S, of the first particle layer 1 The number of the antibacterial particles of the first particle layer.
6. Antimicrobial element according to claim 5, characterized in that the second particle layer satisfies the following relation:
1.0≤A 2 ≤3.0；
wherein A is 2 ＝N 2 /S 2 ，A 2 Is the density, N, of the antimicrobial metal ions of the second particle layer 2 Is the number of the antibacterial metal ions, S, of the second particle layer 2 The number of the antibacterial particles of the second particle layer.
7. Antimicrobial element according to claim 5, characterized in that the third particle layer satisfies the following relation:
2.0≤A 3 ≤4.0；
wherein A is 3 ＝N 3 /S 3 ，A 3 Is the density, N, of the antimicrobial metal ions of the third particle layer 3 Is the number of the antibacterial metal ions, S, of the third particle layer 3 The number of the antibacterial particles of the third particle layer.
8. Antimicrobial element according to claim 2, characterized in that the antimicrobial particles have a particle size of 50-200 μm.
9. Antimicrobial element according to claim 3, characterized in that the particle layer has a thickness of 75-500 μm.
10. The antimicrobial element of claim 2, wherein said antimicrobial metal ions comprise Fe 3+ 、Zn 2+ 、Au 2 + 、Ag + At least one of (1).
11. Antimicrobial element according to claim 2, characterized in that the organic group comprises-O-CH 3 A group and-CH 2 CH 3 At least one of a group, phenyl, cycloalkyl, styryl, and methacrylic acid.
12. A method of making an antimicrobial component, comprising:
adding an antibacterial agent into a substrate and uniformly mixing, wherein the antibacterial agent contains antibacterial metal ions; and
applying an electric field force on the two side surfaces of the mixed matrix to make the antibacterial metal ions migrate in the matrix under the action of the electric field, so that the density of the antibacterial metal ions is gradually increased along the direction of the electric field force to form the antibacterial element.
13. The method of claim 12, wherein said antimicrobial agent comprises a plurality of antimicrobial particles, said antimicrobial particles comprising an organic group and said antimicrobial metal ion, said organic group being in ionic bonding connection with said antimicrobial metal ion, each of said antimicrobial particles comprising at least one of said antimicrobial metal ion and a plurality of said organic groups;
the applying an electric field force on the two side surfaces of the mixed matrix to make the antibacterial metal ions migrate in the matrix under the action of the electric field, so that the density of the antibacterial metal ions is gradually increased along the direction of the electric field force, including:
applying an electric field force to both side surfaces of the mixed substrate to make the antibacterial particles having different numbers of antibacterial metal ions migrate in the substrate at different speeds in the direction of the electric field force, thereby gradually increasing the density of the antibacterial metal ions in the direction of the electric field force.
14. A wearable device, comprising:
a main body; and
the antimicrobial element of any one of claims 1-11, said antimicrobial element being mounted to said body.
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