CN114456396B - Polymer modified zinc oxide and preparation method and application thereof - Google Patents
Polymer modified zinc oxide and preparation method and application thereof Download PDFInfo
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Abstract
The invention relates to polymer modified zinc oxide and a preparation method and application thereof. The preparation method comprises the following steps: dissolving a water-soluble polymer in water to obtain a polymer solution; adding nano zinc oxide colloid into the polymer solution, stirring and mixing for reaction to obtain a reaction solution; and (3) centrifuging the reaction liquid, and collecting precipitate to obtain the polymer modified zinc oxide. According to the preparation method of the polymer modified zinc oxide, the water-soluble polymer is dissolved to obtain the polymer solution, so that the nano zinc oxide colloid and the polymer solution are stirred and mixed for reaction, the water-soluble polymer is combined on the surface of the nano zinc oxide, and the polymer modified zinc oxide is obtained through centrifugal treatment, so that the antibacterial effect can be enhanced.
Description
Technical Field
The invention relates to the technical field of nano materials, in particular to a polymer modified zinc oxide and a preparation method and application thereof.
Background
Harmful bacteria are an important factor that endangers human health, and thus, development and utilization of antibacterial materials to inhibit and kill harmful bacteria is an important aspect of improving human health level. Traditional antibacterial materials, such as antibiotics, quaternary ammonium salts, and the like, can not only cause microbial resistance, but also cause serious environmental pollution. The nano material has the characteristics of strong transmembrane capability, function of inhibiting excretion, difficulty in inducing bacterial drug resistance and the like, and is expected to become a novel antibacterial material.
The nano zinc oxide (ZnO) has special performance and new application which are incomparable with common zinc oxide in the aspects of magnetism, light, electricity and the like due to special surface effect, small-size effect, macroscopic quantum tunneling effect and the like. In a neutral environment, the nano zinc oxide shows remarkable antibacterial property without illumination, and the zinc oxide is a mineral element necessary for human bodies because the zinc oxide has abundant sources and low price, so the nano zinc oxide has become one of hot spots for researching inorganic antibacterial agents. However, when nano zinc oxide is used as a single antibacterial material, there is a limit to antibacterial performance.
Disclosure of Invention
Based on the above, it is necessary to provide a polymer modified zinc oxide, and a preparation method and application thereof, so as to improve the antibacterial effect.
One of the purposes of the invention is to provide a preparation method of polymer modified zinc oxide, which comprises the following steps:
the preparation method of the polymer modified zinc oxide is characterized by comprising the following steps of:
step one, dissolving a water-soluble polymer in water to obtain a polymer solution;
step two, adding nano zinc oxide colloid into the polymer solution, stirring and mixing for reaction to obtain a reaction solution;
and thirdly, centrifuging the reaction liquid, and collecting precipitate to obtain the polymer modified zinc oxide.
In one embodiment, the water-soluble polymer is selected from one or more of polyethylene glycol, polyglycolic acid, polyvinylpyrrolidone, and polyvinyl alcohol.
In one embodiment, the mass ratio of the water-soluble polymer to the nano zinc oxide in the nano zinc oxide colloid is 1:0.5-1:4.
In one embodiment, the mass ratio of the water-soluble polymer to the nano zinc oxide in the nano zinc oxide colloid is 1:0.8-1:3.
In one embodiment, the concentration of the polymer solution is 0.016mg/mL to 0.06mg/mL.
In one embodiment, the nano zinc oxide colloid has a mass concentration of 4×10 -3 mol/L～8×10 -3 mol/L。
In one embodiment, the particle size of the nano zinc oxide in the nano zinc oxide colloid is 30 nm-50 nm.
In one embodiment, in the second step, the stirring speed is 500rpm to 700rpm.
In one embodiment, in the second step, the reaction time is 2-4 h.
In one embodiment, in the third step, the centrifugation is performed at a speed of 6000rpm to 10000rpm.
One of the purposes of the invention is to provide a polymer modified zinc oxide, which is characterized by comprising the following steps:
a polymer modified zinc oxide prepared by the method of any one of the above examples.
It is a further object of the present invention to provide the use of said polymer modified zinc oxide as an antibacterial material.
Compared with the prior art, the polymer modified zinc oxide and the preparation method thereof have the following beneficial effects:
according to the preparation method of the polymer modified zinc oxide, the water-soluble polymer is dissolved to obtain the polymer solution, so that the nano zinc oxide colloid and the polymer solution are stirred and mixed for reaction, the water-soluble polymer is combined on the surface of the nano zinc oxide, and the polymer modified zinc oxide is obtained through centrifugal treatment, so that the antibacterial effect can be enhanced.
Drawings
FIG. 1 is a photograph of polymer modified zinc oxide prepared in example 1.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the 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 herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The preparation method of the polymer modified zinc oxide comprises the following steps:
step one, dissolving a water-soluble polymer in water to obtain a polymer solution.
And step two, adding nano zinc oxide colloid into the polymer solution, stirring and mixing for reaction to obtain a reaction solution.
And thirdly, centrifuging the reaction liquid, and collecting precipitate to obtain the polymer modified zinc oxide.
According to the preparation method of the polymer modified zinc oxide, the water-soluble polymer is dissolved to obtain the polymer solution, so that the nano zinc oxide colloid and the polymer solution are stirred and mixed for reaction, the water-soluble polymer is combined on the surface of the nano zinc oxide, and the polymer modified zinc oxide is obtained through centrifugal treatment, so that the antibacterial effect can be enhanced.
Alternatively, the water-soluble polymer may be selected from, but is not limited to, one or more of polyethylene glycol (PEG), polyglycolic acid (PGA), polyvinylpyrrolidone (PVP), and polyvinyl alcohol (PVA).
One of the technical cores of the present invention is the selection of water-soluble polymers, and the above examples modify zinc oxide by preferred water-soluble polymers, and have excellent antibacterial properties compared with conventional nano zinc oxide.
In one example, the water-soluble polymer is selected from one of polyethylene glycol (PEG), polyglycolic acid (PGA), polyvinylpyrrolidone (PVP), and polyvinyl alcohol (PVA).
In one example, the concentration of the polymer solution is 0.016mg/mL to 0.06mg/mL.
In one example, the nano zinc oxide colloid has a mass concentration of 4×10 -3 mol/L～8×10 -3 mol/L。
In one example, the mass ratio of the water-soluble polymer to the nano zinc oxide in the nano zinc oxide colloid is 1:0.5-1:4.
Further, in one example, the mass ratio of the water-soluble polymer to the nano zinc oxide in the nano zinc oxide colloid is 1:0.8 to 1:3.
The above examples can enhance the antibacterial effect of the product by further preferably selecting the mass ratio of the water-soluble polymer and the nano zinc oxide.
In one example, the particle size of the nano zinc oxide in the nano zinc oxide colloid is 30 nm-50 nm.
In one example, in the second step, the stirring speed is 500rpm to 700rpm. In some specific examples, in said step two, the stirring rate is 500rpm, 550rpm, 600rpm, 650rpm, 700rpm, etc.
In one example, in the second step, the reaction time is 2 to 4 hours. In some specific examples, in the second step, the reaction time is 2h, 2.3h, 2.6h, 2.9h, 3.2h, 3.6h, etc.
In one example, in the third step, the speed of the centrifugal treatment is 6000rpm to 10000rpm. In some specific examples, the centrifugation process is at a rate of 6000rpm, 7000rpm, 8000rpm, 9000rpm, 10000rpm, or the like.
Further, the invention also provides a polymer modified zinc oxide, which is prepared by the preparation method described in the above examples.
According to the preparation method of the polymer modified zinc oxide, the water-soluble polymer is dissolved to obtain the polymer solution, so that the nano zinc oxide colloid and the polymer solution are stirred and mixed for reaction, the water-soluble polymer is combined on the surface of the nano zinc oxide, and the polymer modified zinc oxide is obtained through centrifugal treatment, so that the antibacterial effect can be enhanced.
Furthermore, the invention also provides application of the polymer modified zinc oxide as an antibacterial material.
The invention is further illustrated by the following examples, which are not intended to be limiting, it being understood that the appended claims outline the scope of the invention and that certain changes to the various embodiments of the invention will be covered by the spirit and scope of the claims, as directed to the inventive concepts.
Example 1
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyvinylpyrrolidone (PVP) in water, and stirring for 20min to completely dissolve the polyvinylpyrrolidone to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:0.8. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 2
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyvinylpyrrolidone (PVP) in water, and stirring for 20min to completely dissolve the polyvinylpyrrolidone to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:1. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 3
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyvinylpyrrolidone (PVP) in water, and stirring for 20min to completely dissolve the polyvinylpyrrolidone to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:1.25. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 4
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyvinylpyrrolidone (PVP) in water, and stirring for 20min to completely dissolve the polyvinylpyrrolidone to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:1.7. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 5
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyvinylpyrrolidone (PVP) in water, and stirring for 20min to completely dissolve the polyvinylpyrrolidone to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:3. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 6
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyethylene glycol (PEG) in water, and stirring for 20min to completely dissolve the PEG to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:0.5. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 7
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyethylene glycol (PEG) in water, and stirring for 20min to completely dissolve the PEG to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:0.8. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 8
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyethylene glycol (PEG) in water, and stirring for 20min to completely dissolve the PEG to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:1. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 9
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyethylene glycol (PEG) in water, and stirring for 20min to completely dissolve the PEG to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:1.25. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 10
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyethylene glycol (PEG) in water, and stirring for 20min to completely dissolve the PEG to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:1.7. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 11
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyethylene glycol (PEG) in water, and stirring for 20min to completely dissolve the PEG to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:2.5. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Example 12
This example prepared a polymer modified zinc oxide and a method of preparing the same.
The preparation method of the embodiment comprises the following steps:
step 1, preparing nano zinc oxide colloid, weighing 5mg of nano zinc oxide, adding into 10mL of water, and uniformly stirring at the speed of 550rpm for 40min. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
And 2, preparing a polymer solution, dissolving polyethylene glycol (PEG) in water, and stirring for 20min to completely dissolve the PEG to obtain the polymer solution. The volume of the polymer solution was 6mL.
And 3, sucking the nano zinc oxide colloid prepared in the step 1 by using a rubber head dropper, and slowly adding the nano zinc oxide colloid into the polymer solution prepared in the step 2, wherein the mass ratio of the polymer solution to the nano zinc oxide colloid is 1:3. The mixture was stirred and reacted for 2 hours to obtain a reaction solution.
And 4, centrifuging the reaction solution in the step 3, wherein the centrifuging speed is 8000rpm. And collecting the precipitate to obtain the polymer modified zinc oxide.
Comparative example 1
The comparative example provides a nano zinc oxide colloid, and the preparation method comprises the following steps:
6mg of nano zinc oxide was weighed into 20mL of water and stirred uniformly at a rate of 550rpm for 40 minutes. The mass concentration of the nano zinc oxide colloid is 0.004mol/L.
Comparative example 2
The comparative example provides a nano zinc oxide colloid, and the preparation method comprises the following steps:
9mg of nano zinc oxide was weighed into 20mL of water and stirred uniformly at a rate of 550rpm for 40 minutes. The mass concentration of the nano zinc oxide colloid is 0.006mol/L.
Comparative example 3
The comparative example provides a nano zinc oxide colloid, and the preparation method comprises the following steps:
12mg of nano zinc oxide was weighed into 20mL of water and stirred uniformly at a rate of 550rpm for 40 minutes. The mass concentration of the nano zinc oxide colloid is 0.008mol/L.
Example 1 a photograph of the polymer modified zinc oxide obtained after centrifugation is shown in figure 1.
The products obtained in examples 1 to 12 and comparative examples 1 to 3 were subjected to antibacterial tests to test the Minimum Inhibitory Concentrations (MIC) of the products against E.coli and Staphylococcus aureus, respectively. The test results are shown in Table 1.
TABLE 1
According to the preparation method of the polymer modified zinc oxide, the water-soluble polymer is dissolved to obtain the polymer solution, so that the nano zinc oxide colloid and the polymer solution are stirred and mixed for reaction, the water-soluble polymer is combined on the surface of the nano zinc oxide, and the polymer modified zinc oxide is obtained through centrifugal treatment, so that the antibacterial effect can be enhanced.
Compared with the traditional nano zinc oxide, the nano zinc oxide modified by the polymer has excellent antibacterial performance, and the preparation method is simple and easy to implement and has high safety.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The preparation method of the polymer modified zinc oxide is characterized by comprising the following steps of:
step one, dissolving a water-soluble polymer in water to obtain a polymer solution, wherein the water-soluble polymer is polyvinylpyrrolidone, and the concentration of the polymer solution is 0.016 mg/mL-0.06 mg/mL;
step two, taking nano zinc oxide colloid, slowly adding the nano zinc oxide colloid into the polymer solution, stirring and mixing for reaction, wherein the stirring speed is 500-700 rpm, the reaction time is 2-4 h, and the mass concentration of the nano zinc oxide colloid is 4 multiplied by 10 -3 mol/L～8×10 -3 mol/L；
And thirdly, carrying out centrifugal treatment on the reaction liquid, wherein the speed of the centrifugal treatment is 8000-10000 rpm, and collecting precipitate to obtain the polymer modified zinc oxide.
2. The method for producing a polymer-modified zinc oxide according to claim 1, wherein the rate of the centrifugal treatment is 8000rpm to 9000rpm.
3. The method for preparing polymer modified zinc oxide according to claim 1, wherein the mass ratio of the water-soluble polymer to the nano zinc oxide in the nano zinc oxide colloid is 1:0.5-1:4.
4. The method for preparing polymer modified zinc oxide according to claim 1, wherein the mass ratio of the water-soluble polymer to the nano zinc oxide in the nano zinc oxide colloid is 1:0.8-1:3.
5. The method for preparing polymer modified zinc oxide according to claim 1, wherein the particle size of the nano zinc oxide in the nano zinc oxide colloid is 30nm to 50nm.
6. The method for producing a polymer-modified zinc oxide according to claim 1, wherein in said step two, the stirring speed is 500rpm to 600rpm.
7. The method for producing a polymer-modified zinc oxide according to claim 1, wherein in the second step, the reaction time is 2 to 3.6 hours.
8. The method for producing polymer-modified zinc oxide according to claim 7, wherein in said second step, the reaction time is 2.3 to 3.6 hours.
9. A polymer modified zinc oxide prepared by the method of any one of claims 1 to 8.
10. Use of the polymer modified zinc oxide of claim 9 as an antibacterial material.
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