CN111961325A - Antibacterial composite material and preparation method and application thereof - Google Patents
Antibacterial composite material and preparation method and application thereof Download PDFInfo
- Publication number
- CN111961325A CN111961325A CN202010877301.8A CN202010877301A CN111961325A CN 111961325 A CN111961325 A CN 111961325A CN 202010877301 A CN202010877301 A CN 202010877301A CN 111961325 A CN111961325 A CN 111961325A
- Authority
- CN
- China
- Prior art keywords
- percent
- composite material
- resin
- antibacterial
- inorganic silver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/12—Adsorbed ingredients, e.g. ingredients on carriers
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0806—Silver
Abstract
The invention provides an antibacterial composite material, which comprises the following components in percentage by weight: 95 to 99 percent of high molecular resin, 0.6 to 2 percent of inorganic silver antibacterial agent and 0.1 to 3 percent of color coloring agent; wherein the polymer resin is at least one selected from the group consisting of polyurethane resin and polycarbonate resin. The inorganic silver antibacterial agent has stable physical and chemical properties, can keep excellent antibacterial property in the processing process and the using process, can achieve good antibacterial effect at low concentration, and has excellent antibacterial property while keeping good mechanical property by adding the inorganic silver antibacterial agent with specific weight. When the antibacterial composite material is used for preparing the protective shell, the breeding of bacteria on the surface of an electronic product can be reduced, so that the human health can be protected.
Description
Technical Field
The invention relates to the technical field of polymer composite materials, in particular to an antibacterial composite material and a preparation method and application thereof.
Background
The mobile phone is a communication electronic device with extremely high popularization rate, and the phenomenon that the mobile phone is not separated from the hand is also a very common social phenomenon. As the skin of the mobile phone, the mobile phone shell is the part which is directly contacted by users, and is a powerful protective umbrella of the mobile phone, so that the invasion of dust can be effectively reduced, the damage caused by accidental falling can be reduced, the anti-falling, anti-scraping, waterproof and shockproof capabilities of the mobile phone can be improved, and the service life of the mobile phone can be prolonged.
With the popularization of various electronic products such as mobile phones, mobile phones and portable electronic products have become one of the most popular products for consumers to contact bacteria. The skilled person has found that the cell phone casing carries various bacteria, and the amount of bacteria carried is 18 times of the amount of bacteria carried by the toilet handle. The mobile phone can be in contact with the skin, the nose, the mouth, the ears and the like of people every day, particularly, in summer, when the mobile phone is attached to the ears or placed beside the mouth to keep communication, sweat, saliva and the like of people can be adhered to the mobile phone, and along with the prolonging of the service life of the mobile phone, a large amount of bacteria can be bred on the surface of the mobile phone by the substances, so that the mobile phone is not beneficial to human health.
The materials of the three-proof shell of the electronic product commonly used in the market at present are mainly Polycarbonate (PC), polyurethane (TPU) and polyethylene glycol terephthalate (PET), the PC is adopted to prepare the face cover of the three-proof shell, the TPU is adopted to prepare the bottom shell of the three-proof shell, and the PET is adopted to prepare the protection screen of the three-proof shell, so that the prepared three-proof shell has good mechanical property, and has excellent impact resistance, creep resistance, size stability and electrical insulation property. However, these electronic product three-proof shells are easily contaminated with various bacteria during the use process, and are very harmful to the health of people.
Therefore, it is of great significance to develop materials with excellent antibacterial and mechanical properties.
Disclosure of Invention
Based on the antibacterial composite material, the invention provides the antibacterial composite material with excellent antibacterial property and mechanical property, and the preparation method and the application thereof.
The technical scheme of the invention is as follows.
The invention provides an antibacterial composite material, which comprises the following components in percentage by weight: 95 to 99 percent of high molecular resin, 0.6 to 2 percent of inorganic silver antibacterial agent and 0.1 to 3 percent of coloring agent; the polymer resin is at least one selected from polyurethane resin and polycarbonate resin.
In some of the embodiments, the polymer resin is at least one selected from thermoplastic elastomer polyurethane and polycarbonate resin; and/or
The inorganic silver antibacterial agent is at least one selected from silver-carrying phosphate and silver-carrying silicon dioxide.
In some embodiments, the colorant is a toner and a color master batch, and the antibacterial composite material comprises the following components in percentage by weight: 95 to 98 percent of high molecular resin, 0.6 to 1.5 percent of inorganic silver antibacterial agent, 0.1 to 1.5 percent of toner and 1 to 2 percent of color master batch; the polymer resin is polyurethane resin.
Further, the antibacterial composite material comprises the following components in percentage by weight: 97.4 percent of high molecular resin, 0.6 percent of inorganic silver antibacterial agent, 0.5 percent of toner and 1.5 percent of color master batch.
In some embodiments, the colorant is a toner, and the antimicrobial composite material includes the following components in percentage by weight: 97 to 99 percent of high polymer resin, 0.6 to 1.5 percent of inorganic silver antibacterial agent and 0.1 to 1.5 percent of toner, wherein the high polymer resin is polycarbonate resin.
Further, the antibacterial composite material comprises the following components in percentage by weight: 98.9% of high molecular resin, 0.6% of inorganic silver antibacterial agent and 0.5% of toner.
The invention also provides a preparation method of the antibacterial composite material, which comprises the following steps:
providing the following raw materials in percentage by weight: 95 to 99 percent of macromolecular resin, 0.5 to 1.5 percent of inorganic silver antibacterial agent and 0.1 to 3 percent of coloring agent; the high polymer resin is at least one of polyurethane resin and polycarbonate resin;
and mixing the raw materials, and performing injection molding to obtain the antibacterial composite material.
The invention also provides an application of any one of the antibacterial composite materials or the antibacterial composite material prepared by the preparation method in preparation of a protective shell.
Further, the invention provides a protective shell, which is mainly made of any one of the antibacterial composite materials or the antibacterial composite material prepared by the preparation method.
In some embodiments, the protective shell includes a cover and a bottom shell, wherein the cover is mainly made of any one of the antibacterial composite materials or the antibacterial composite material prepared by the preparation method; and/or
The bottom shell is mainly made of any one of the antibacterial composite materials or the antibacterial composite material prepared by the preparation method.
Advantageous effects
1. The antibacterial composite material contains polymer resin, an inorganic silver antibacterial agent and a coloring agent in a specific ratio; and the polymer resin is selected from at least one of polyurethane resin and polycarbonate resin. The antibacterial composite material has excellent antibacterial property and good mechanical property, and can slow down the breeding of bacteria on the surface of an electronic product when being used for preparing a protective shell of the electronic product, thereby protecting the health of a human body.
The inorganic silver antibacterial agent has stable physical and chemical properties, can keep excellent antibacterial property in the processing process and the using process, can achieve good antibacterial effect at low concentration, and has excellent antibacterial property while keeping good mechanical property by adding the inorganic silver antibacterial agent with specific weight.
2. The protective shell of the invention is mainly made of any one of the antibacterial composite materials or the antibacterial composite material prepared by any one of the preparation methods. This electronic product protective housing has excellent shock resistance, can improve electronic product prevent falling, prevent scraping and shock-proof ability, can slow down breeding of electronic product surface bacterium simultaneously, protect the health.
Drawings
Fig. 1 is a flow chart of a method for preparing an antibacterial composite material according to an embodiment of the present invention.
Detailed Description
In order that the invention may be more fully understood, a more particular description of the invention will now be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
One embodiment of the invention provides an antibacterial composite material, which comprises the following components in percentage by weight: 95 to 99 percent of high molecular resin, 0.6 to 2 percent of inorganic silver antibacterial agent and 0.1 to 3 percent of coloring agent; the polymer resin is selected from at least one of polyurethane resin and polycarbonate resin.
The antibacterial composite material has excellent antibacterial property and can keep good mechanical property, and when the antibacterial composite material is used for preparing an electronic product protective shell, the breeding of bacteria on the surface of an electronic product can be reduced, so that the health of a human body can be protected.
The inorganic silver antibacterial agent has stable physical and chemical properties, can keep excellent antibacterial property in the processing process and the using process, can achieve good antibacterial effect at low concentration, and has excellent antibacterial property while keeping good mechanical property by adding the inorganic silver antibacterial agent with specific weight.
The action mechanism of the inorganic silver antibacterial agent has the following aspects:
1) silver ions interfere with cell wall synthesis. The important component of the bacterial cell wall is peptidoglycan, the interference effect of the inorganic silver antibacterial agent on the cell wall mainly inhibits the connection of a polysaccharide chain and tetrapeptide crosslinking, so that the integrity of the cell wall is lost, the protection effect on osmotic pressure is lost, and the thallus is damaged to die.
2) Silver ions can damage cell membranes, which are an important component of the vital activities of bacterial cells. Therefore, if the cell membrane is damaged or destroyed, the bacteria will die.
3) Silver ions inhibit protein synthesis, and alter and stop the protein synthesis process, thereby killing bacteria.
4) Silver ions interfere with nucleic acid synthesis, thereby preventing the replication of genetic information, including DNA, RNA synthesis, and mRNA transcription from DNA templates, among others.
In some of these embodiments, the inorganic silver antimicrobial agent is a silver ion antimicrobial agent.
In some of the embodiments, the polymer resin is at least one selected from thermoplastic elastomer polyurethane and polycarbonate resin; and/or
The inorganic silver antibacterial agent is at least one selected from silver-carrying phosphate and silver-carrying silicon dioxide.
Thermoplastic polyurethane elastomer polyurethanes are one of the important thermoplastic elastomer resin materials, the molecules of which are essentially linear with no or little chemical crosslinking. The linear polyurethane has physical crosslinking formed by a plurality of hydrogen bonds among molecular chains, and the hydrogen bonds endow the polyurethane with a plurality of excellent performances, such as high modulus, high strength, excellent wear resistance, chemical resistance, hydrolysis resistance, high temperature resistance and mold resistance. And because it is basically a linear structure polymer, can adopt and process the same technology and apparatus as the thermoplastic plastics, such as injection molding, extrusion, blow molding, calendering, etc., help the large-scale production; and the waste thermoplastic polyurethane elastomer material can be recycled and reused.
In some of these embodiments, the polycarbonate resin is selected from at least one of bisphenol a polycarbonate, polyestercarbonate, silicone-polycarbonate, cyclohexane bisphenol a polycarbonate.
The polycarbonate resin PC is a linear carbonic acid polyester molecule, and the PC high molecular weight resin has high toughness and high cantilever beam notch impact strength; and simultaneously has excellent creep resistance, flame retardance and oxidation resistance.
In some of these embodiments, the colorant is selected from at least one of a toner and a color masterbatch.
The toner and the color master batch are colored dyeing substances and are uniformly dispersed in the polymer resin in a micro particle state in the processing process, so that the composite antibacterial material obtains a good coloring effect. The color powder and the color master batch generally have various colors such as blue, orange, green, black, yellow, red, purple, pearly color and the like, and the antibacterial composite material obtains rich and colorful colors by adjusting the colors and the use amounts of the color powder and the color master batch, thereby meeting the actual requirements.
The color master batch is a plastic colorant formed by well dispersing a pigment or an additive with a high proportion and a thermoplastic resin, and the resin has good wetting and dispersing effects on the colorant and good compatibility with a colored high polymer resin, so that the dispersibility of the pigment can be improved, and the coloring uniformity can be improved.
In some embodiments, the colorant is a toner and a color master batch, and the antibacterial composite material comprises the following components in percentage by weight: 95 to 98 percent of high molecular resin, 0.6 to 1.5 percent of inorganic silver antibacterial agent, 0.1 to 1.5 percent of toner and 1 to 2 percent of color master batch; and the polymer resin is polyurethane resin.
Wherein, the polyurethane has excellent flexibility and strong shock resistance, and is an excellent buffer material; the inorganic silver antibacterial agent with specific weight is added into the polyurethane, so that the antibacterial performance of the polyurethane can be improved, and the excellent mechanical property of the polyurethane can be maintained.
Preferably, the antibacterial composite material comprises the following components in percentage by weight: 97.4 percent of high molecular resin, 0.6 percent of inorganic silver antibacterial agent, 0.5 percent of toner and 1.5 percent of color master batch.
In some embodiments, the colorant is a toner, and the antimicrobial composite material includes the following components in percentage by weight: 97 to 99 percent of high polymer resin, 0.6 to 1.5 percent of inorganic silver antibacterial agent and 0.1 to 1.5 percent of toner, wherein the high polymer resin is polycarbonate resin.
The polycarbonate has the characteristics of high strength, good tensile resistance, good wear resistance, high temperature resistance and the like, and the antibacterial property of the polyurethane can be improved by adding the inorganic silver antibacterial agent with a specific weight into the polycarbonate, and meanwhile, the excellent impact resistance of the polyurethane can be maintained.
Preferably, the antibacterial composite material comprises the following components in percentage by weight: 98.9% of high molecular resin, 0.6% of inorganic silver antibacterial agent and 0.5% of toner.
An embodiment of the present invention further provides a method for preparing an antibacterial composite material, and the specific steps refer to fig. 1, including the following steps S100 to S200.
And step S100, providing raw materials.
The raw materials comprise, by weight, 95-99% of high polymer resin, 0.5-1.5% of inorganic silver antibacterial agent and 0.1-3% of coloring agent; and the polymer resin is selected from at least one of polyurethane resin and polycarbonate resin.
And step S200, mixing the raw materials, and performing injection molding to obtain the antibacterial composite material.
In some embodiments, in step S200, the injection molding includes a heating melting stage and an injection molding stage; further, the raw materials are heated to a molten state through a heating stage, and then are injected into a mold through a nozzle of an injection molding machine for molding, wherein the time of the injection molding stage is 0.5 min-1 min.
Further, when the polymer resin is polyurethane, the temperature of the heating and melting stage is 210-220 ℃; when the polymer resin is polycarbonate, the temperature of the heating and melting stage is 280-320 ℃.
In some embodiments, step S200 further includes a step of drying the raw material before the injection molding step.
Further, when the polymer resin is polyurethane, the drying conditions are as follows: drying for 3-6 h at 110-120 ℃; when the polymer resin is polycarbonate, the drying conditions are as follows: drying for 2-4 h at 80-100 ℃.
The moisture in the raw materials is removed through drying, so that the phenomenon that the high polymer resin generates a peroxide structure with weaker bond energy and extremely unstable under the combined action of the moisture in the raw materials and air oxygen in the high-temperature processing process is avoided, and the mechanical property of the high polymer resin is reduced.
It will be appreciated that the drying of the above-mentioned raw materials may also be carried out before the mixing step, or overnight after the mixing step; the raw materials may be dried together or may be mixed and dried at the same time as long as the raw materials are dried before the injection molding step.
In some of these embodiments, the mixing is in a high speed mixer.
It will be appreciated that the mixing process described above may also be carried out in other mixing devices, as long as adequate mixing of the materials is achieved.
An embodiment of the present invention further provides an application of any one of the above-mentioned antibacterial composite materials or the antibacterial composite material prepared by the above-mentioned preparation method in preparing a protective shell.
The antibacterial composite material has excellent impact resistance, can improve the anti-falling, anti-scraping and anti-vibration capabilities of electronic products, has excellent antibacterial property, and can slow down the breeding of bacteria on the surfaces of the electronic products and protect the health of human bodies.
An embodiment of the present invention further provides a protective shell, wherein the protective shell of the electronic product is mainly made of any one of the antibacterial composite materials or the antibacterial composite material prepared by the preparation method.
This electricity protective housing has excellent shock resistance, can improve preventing of electronic product and fall, prevent scraping and shock-proof ability, can slow down breeding of electronic product surface bacterium simultaneously, protects the health.
Further, the protective shell comprises a face cover and a bottom shell, wherein the face cover is mainly made of any one of the antibacterial composite materials taking polycarbonate as a raw material; and/or
The bottom shell is mainly made of any one of the antibacterial composite materials taking polyurethane as a raw material.
Furthermore, a polyethylene terephthalate protective film is attached to one side of the surface cover, which is in contact with the electronic product.
The polycarbonate has high strength, good tensile resistance and good wear resistance, and the face cover made of the antibacterial composite material taking the polycarbonate as the raw material has strong impact resistance and can improve the anti-falling capability of electronic products; the polyurethane has excellent flexibility and strong shock resistance, and is an excellent buffer material; the surface cover made of the antibacterial composite material taking polyurethane as the raw material has good flexibility and is convenient to assemble and disassemble; meanwhile, the antibacterial composite material can effectively slow down the breeding of bacteria on the surface of the electronic product, thereby protecting the health of human bodies.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The antibacterial composite material according to the present invention and the preparation method and use thereof are exemplified herein, but the present invention is not limited to the following examples.
Example 1
1) Weighing 98.9 percent of polycarbonate resin, 0.6 percent of inorganic silver antibacterial agent and 0.5 percent of toner in percentage by weight, mixing and stirring the raw materials for 5 minutes, and drying the mixture for 3 hours at 90 ℃ in a dryer to obtain the mixed material.
2) And putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 300 ℃, carrying out injection molding for 50 seconds by using a shell mold, cooling to normal temperature to obtain an antibacterial composite material face cover, and adhering a polyethylene terephthalate protective film with self-adhesive 3M glue to the inner side of the PC face cover on one side of the obtained face cover, which is in contact with the electronic product, so as to obtain a finished product of the antibacterial face cover.
Example 2
1) According to the weight percentage, 97.5 percent of polycarbonate resin, 1 percent of inorganic silver antibacterial agent and 1.5 percent of toner are weighed, the raw materials are mixed and stirred for 5 minutes, and then the mixture is dried for 3 hours at the temperature of 90 ℃ in a dryer to obtain the mixed material.
2) And putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 300 ℃, carrying out injection molding for 50 seconds by using a shell mold, cooling to normal temperature to obtain an antibacterial composite material face cover, and adhering a polyethylene terephthalate protective film with self-adhesive 3M glue to the inner side of the PC face cover on one side of the obtained face cover, which is in contact with the electronic product, so as to obtain a finished product of the antibacterial face cover.
Example 3
1) Weighing 96.5 percent of polycarbonate resin, 2 percent of inorganic silver antibacterial agent and 1.5 percent of toner according to weight percentage, mixing and stirring the raw materials for 5 minutes, and drying the raw materials for 3 hours at 90 ℃ in a dryer to obtain a mixed material.
2) And putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 300 ℃, carrying out injection molding for 50 seconds by using a shell mold, cooling to normal temperature to obtain an antibacterial composite material face cover, and adhering a polyethylene terephthalate protective film with self-adhesive 3M glue to the inner side of the PC face cover on one side of the obtained face cover, which is in contact with the electronic product, so as to obtain a finished product of the antibacterial face cover.
Comparative example 1
1) Weighing 99 percent of polycarbonate resin, 0.5 percent of inorganic silver antibacterial agent and 0.5 percent of toner according to weight percentage, mixing and stirring the raw materials for 5 minutes, and drying the raw materials for 3 hours at 90 ℃ in a dryer to obtain a mixed material.
2) And putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 300 ℃, carrying out injection molding for 50 seconds by using a shell mold, cooling to normal temperature to obtain an antibacterial composite material face cover, and adhering a polyethylene terephthalate protective film with self-adhesive 3M glue to the inner side of the PC face cover on one side of the obtained face cover, which is in contact with the electronic product, so as to obtain a finished product of the antibacterial face cover.
Comparative example 2
1) Weighing 99.5 percent of polycarbonate resin and 0.5 percent of toner according to the weight percentage, mixing and stirring the raw materials for 5 minutes, and drying the mixture for 3 hours at the temperature of 90 ℃ in a dryer to obtain the mixed material.
2) And putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 300 ℃, carrying out injection molding for 50 seconds by using a shell mold, cooling to normal temperature to obtain an antibacterial composite material face cover, and adhering a polyethylene terephthalate protective film with self-adhesive 3M glue to the inner side of the PC face cover on one side of the obtained face cover, which is in contact with the electronic product, so as to obtain a finished product of the antibacterial face cover.
In examples 1 to 3 and comparative examples 1 to 2, the polycarbonate used was 1100PC, and the inorganic silver antibacterial agent used was CA-001.
Example 4
1) According to the weight percentage, 97.4 percent of polyurethane resin, 0.6 percent of inorganic silver antibacterial agent, 0.5 percent of toner and 1.5 percent of color master batch are weighed, the raw materials are mixed and stirred for 5 minutes, and then the mixture is dried for 5 hours under the temperature of 115 ℃ in a dryer to obtain the mixed material.
2) And (3) putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 215 ℃, carrying out injection molding for 50 seconds by using a shell mold, and cooling to normal temperature to obtain the antibacterial composite material bottom shell.
Example 5
1) According to the weight percentage, 95.5 percent of polyurethane resin, 1 percent of inorganic silver antibacterial agent, 1.5 percent of toner and 2 percent of color master batch are weighed, the raw materials are mixed and stirred for 5 minutes, and then the mixture is dried for 5 hours under the dryer at the temperature of 115 ℃ to obtain the mixed material.
2) And (3) putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 215 ℃, carrying out injection molding for 50 seconds by using a shell mold, and cooling to normal temperature to obtain the antibacterial composite material bottom shell.
Example 6
1) According to the weight percentage, 94.5 percent of polyurethane resin, 2 percent of inorganic silver antibacterial agent, 1.5 percent of toner and 2 percent of color master batch are weighed, the raw materials are mixed and stirred for 5 minutes, and then the mixture is dried for 5 hours under the dryer at the temperature of 115 ℃ to obtain the mixed material.
2) And (3) putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 215 ℃, carrying out injection molding for 50 seconds by using a shell mold, and cooling to normal temperature to obtain the antibacterial composite material bottom shell.
Comparative example 3
1) Weighing 98% of polyurethane resin, 0.5% of inorganic silver antibacterial agent, 0.5% of toner and 1% of color master batch by weight percentage, mixing and stirring the raw materials for 5 minutes, and drying the raw materials for 5 hours at 115 ℃ in a dryer to obtain the mixed material.
2) And (3) putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 215 ℃, carrying out injection molding for 50 seconds by using a shell mold, and cooling to normal temperature to obtain the antibacterial composite material bottom shell.
Comparative example 4
1) Weighing 98 percent of polyurethane resin, 0.5 percent of white powder and 1.5 percent of color master batch according to weight percentage, mixing and stirring the raw materials for 5 minutes, and drying the mixture for 5 hours at 115 ℃ in a dryer to obtain a mixed material.
2) And (3) putting the mixed materials into an injection molding machine, adjusting the temperature of a nozzle and a screw of the injection molding machine to 215 ℃, carrying out injection molding for 50 seconds by using a shell mold, and cooling to normal temperature to obtain the antibacterial composite material bottom shell.
Among them, in examples 3 to 4 and comparative examples 3 to 4, TPUS195 was used as the polyurethane resin, and CA-001 was used as the inorganic silver antibacterial agent.
Specifically, the raw material compositions in examples 1 to 6 and comparative examples 1 to 4 are shown in table 1 in terms of weight percent.
TABLE 1
The performance tests of the surface covers prepared in the examples 1 to 3 and the comparative examples 1 to 2 and the bottom shells prepared in the examples 4 to 6 and the comparative examples 3 to 4 are as follows:
1) according to the detection basis: GB/T31402-.
2) According to the detection basis: GB/T1043.1-2008 tests the impact strength of the simply supported beams of the top and bottom shells, the results are shown in Table 2.
TABLE 2
| Antibacterial ratio (%) | Impact Strength (failure type) | |
| Example 1 | 99.9 | N |
| Example 2 | 99.9 | N |
| Example 3 | 99.9 | P |
| Comparative example 1 | 90 | N |
| Comparative example 2 | 0 | N |
| Example 4 | 99.9 | N |
| Example 5 | 99.9 | N |
| Example 6 | 99.9 | P |
| Comparative example 3 | 90 | N |
| Comparative example 4 | 0 | N |
Where "N" represents no destruction and "P" represents partial destruction.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The antibacterial composite material is characterized by comprising the following components in percentage by weight: 95 to 99 percent of high molecular resin, 0.6 to 2 percent of inorganic silver antibacterial agent and 0.1 to 3 percent of coloring agent; the polymer resin is at least one selected from polyurethane resin and polycarbonate resin.
2. The antimicrobial composite of claim 1, wherein the polymeric resin is selected from at least one of thermoplastic elastomer polyurethane and polycarbonate resin; and/or
The inorganic silver antibacterial agent is at least one selected from silver-carrying phosphate and silver-carrying silicon dioxide.
3. The antimicrobial composite material of claim 1 or 2, wherein the colorant is a toner and a color masterbatch, and the antimicrobial composite material comprises the following components in percentage by weight: 95 to 98 percent of high molecular resin, 0.6 to 1.5 percent of inorganic silver antibacterial agent, 0.1 to 1.5 percent of toner and 1 to 2 percent of color master batch; the high polymer resin is polyurethane resin.
4. The antimicrobial composite of claim 3, comprising the following components in weight percent: 97.4 percent of high molecular resin, 0.6 percent of inorganic silver antibacterial agent, 0.5 percent of toner and 1.5 percent of color master batch.
5. The antimicrobial composite material according to claim 1 or 2, wherein the colorant is a toner, and the antimicrobial composite material comprises the following components in percentage by weight: 97 to 99 percent of high polymer resin, 0.6 to 1.5 percent of inorganic silver antibacterial agent and 0.1 to 1.5 percent of toner, wherein the high polymer resin is polycarbonate resin.
6. The antimicrobial composite of claim 5, comprising the following components in weight percent: 98.9% of high molecular resin, 0.6% of inorganic silver antibacterial agent and 0.5% of toner.
7. The preparation method of the antibacterial composite material is characterized by comprising the following steps:
providing the following raw materials in percentage by weight: 95 to 99 percent of macromolecular resin, 0.5 to 1.5 percent of inorganic silver antibacterial agent and 0.1 to 3 percent of coloring agent; the high polymer resin is selected from at least one of polyurethane resin and polycarbonate resin;
and mixing the raw materials, and performing injection molding to obtain the antibacterial composite material.
8. Use of the antibacterial composite material according to any one of claims 1 to 5 or the antibacterial composite material prepared by the preparation method according to claim 7 for preparing a protective shell.
9. A protective case, characterized in that the protective case is mainly made of the antibacterial composite material according to any one of claims 1 to 5 or the antibacterial composite material produced by the production method according to claim 7.
10. A protective casing according to claim 9 comprising a face cover and a base casing, the face cover being made predominantly of the antimicrobial composite material as claimed in any one of claims 5 to 6; and/or
The bottom case is mainly made of the antibacterial composite material as claimed in any one of claims 3 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010877301.8A CN111961325A (en) | 2020-08-27 | 2020-08-27 | Antibacterial composite material and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010877301.8A CN111961325A (en) | 2020-08-27 | 2020-08-27 | Antibacterial composite material and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111961325A true CN111961325A (en) | 2020-11-20 |
Family
ID=73399348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010877301.8A Pending CN111961325A (en) | 2020-08-27 | 2020-08-27 | Antibacterial composite material and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111961325A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2614284A (en) * | 2021-12-23 | 2023-07-05 | Matthew Thorn Daniel | Anitmicrobial compositions and eyewear |
| CN117447832A (en) * | 2023-11-17 | 2024-01-26 | 安徽美立刻医疗器械有限公司 | Antibacterial coating and preparation method of TPU dental film containing antibacterial coating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009044477A1 (en) * | 2007-10-05 | 2009-04-09 | Toagosei Co., Ltd. | Silver-containing inorganic antibacterial |
| JP2012056972A (en) * | 2010-09-03 | 2012-03-22 | Sumika Styron Polycarbonate Ltd | Antibacterial polycarbonate resin composition |
| CN105400176A (en) * | 2015-11-25 | 2016-03-16 | 全椒祥瑞塑胶有限公司 | Antibacterial polyurethane |
| CN106147206A (en) * | 2016-07-26 | 2016-11-23 | 福建师范大学泉港石化研究院 | A kind of yellowing-resistant antibacterial mobile phone shell sheath and preparation method thereof |
| CN107619590A (en) * | 2016-07-15 | 2018-01-23 | 汉达精密电子(昆山)有限公司 | Color inhibition nanometer silver antimicrobial makrolon material and its products formed |
| CN109553949A (en) * | 2018-11-21 | 2019-04-02 | 金发科技股份有限公司 | A kind of antibacterial makrolon composite material and preparation method |
-
2020
- 2020-08-27 CN CN202010877301.8A patent/CN111961325A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009044477A1 (en) * | 2007-10-05 | 2009-04-09 | Toagosei Co., Ltd. | Silver-containing inorganic antibacterial |
| JP2012056972A (en) * | 2010-09-03 | 2012-03-22 | Sumika Styron Polycarbonate Ltd | Antibacterial polycarbonate resin composition |
| CN105400176A (en) * | 2015-11-25 | 2016-03-16 | 全椒祥瑞塑胶有限公司 | Antibacterial polyurethane |
| CN107619590A (en) * | 2016-07-15 | 2018-01-23 | 汉达精密电子(昆山)有限公司 | Color inhibition nanometer silver antimicrobial makrolon material and its products formed |
| CN106147206A (en) * | 2016-07-26 | 2016-11-23 | 福建师范大学泉港石化研究院 | A kind of yellowing-resistant antibacterial mobile phone shell sheath and preparation method thereof |
| CN109553949A (en) * | 2018-11-21 | 2019-04-02 | 金发科技股份有限公司 | A kind of antibacterial makrolon composite material and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 何娟等: "载银无机抗菌剂及其应用", 《广州大学学报(自然科学版)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2614284A (en) * | 2021-12-23 | 2023-07-05 | Matthew Thorn Daniel | Anitmicrobial compositions and eyewear |
| CN117447832A (en) * | 2023-11-17 | 2024-01-26 | 安徽美立刻医疗器械有限公司 | Antibacterial coating and preparation method of TPU dental film containing antibacterial coating |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111961325A (en) | Antibacterial composite material and preparation method and application thereof | |
| CN105400154A (en) | Biodegradable plastic color masterbatch and preparation method thereof | |
| HK1070469A1 (en) | Seal for electrochemical cell | |
| JPS56850A (en) | Glass bead-filled resin composition | |
| CN109651822A (en) | A kind of high-mechanical property medical grade silicon rubber and preparation method thereof | |
| CN112300546B (en) | Ultraviolet-resistant thermoplastic polyester composite material for laser welding and preparation method thereof | |
| EP2565220A1 (en) | Preparation method of power plastic masterbatch particles and plastic products therefrom | |
| CN110225948A (en) | The universal pigment preparation of enhancing and the coloring of plastics | |
| CN106967286A (en) | Composition for preparing expansion type thermoplastic elastomer (TPE) and preparation method thereof, expansion type thermoplastic elastomer (TPE) and preparation method thereof | |
| CN104072644B (en) | Antibacterial polymer and preparation technology | |
| CN110527260A (en) | A kind of high tenacity regenerated environment protecting plastics and its processing technology | |
| CN109096777A (en) | A kind of Masterbatch and production method | |
| CN101772545A (en) | Colored biofiber for plastic articles | |
| CN111269466A (en) | Plastic master batch, preparation method and plastic | |
| CN115286766B (en) | Antibacterial thermoplastic polyurethane elastomer material, and preparation method and application thereof | |
| CN114685965B (en) | Fully-degradable hard polylactic acid composite material and preparation method thereof | |
| CN106700199A (en) | Wear-resistant plastic bag and processing technology therefor | |
| CN106883600A (en) | Polymer composition, electronic equipment and its manufacture method | |
| CN110437511A (en) | Degradable rubber material and preparation method thereof, and application | |
| CN113004680A (en) | Wear-resisting corrosion-resistant TPU super-permeable membrane | |
| US20040043147A1 (en) | Color coated plastic pellets | |
| GB2165850A (en) | Precolored polyamide molding composition | |
| CN104861684A (en) | Polycarbonate-containing high strength wood composite material | |
| CN110283468A (en) | A kind of preparation method of the compound plastic-wood material of high durable | |
| JPS629620B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201120 |
|
| RJ01 | Rejection of invention patent application after publication |