阅读说明：本技术 一种抑菌假发及其制备方法 (Antibacterial wig and preparation method thereof ) 是由 黄永祥 唐泳 王士喜 黄小云 于 2021-08-17 设计创作，主要内容包括：本发明涉及假发材料领域,具体为一种抑菌假发及其制备方法,由以下原料制成：羊毛、纤维素、负载银粒子氧化纤维素、纤维素纳米微晶、离子溶液、乙二醇二缩水甘油醚、尿素、聚乙烯醇、蜂蜡,本发明所制备的抑菌假发力学性能良好,断裂强度≥14.06cN·dtex～(-1),断裂伸长率≥55.68％,使用耐久度良好,且具有良好的抑菌性能,水洗20次后仍能保持较高的抑菌性能。(The invention relates to the field of wig materials, in particular to a bacteriostatic wig and a preparation method thereof, wherein the bacteriostatic wig is prepared from the following raw materials: the bacteriostatic wig prepared by the method has good mechanical properties, and the breaking strength is not less than 14.06cN & dtex ‑1 The elongation at break is more than or equal to 55.68 percent, the service durability is good, the antibacterial property is good, and the antibacterial property can be still kept after the water washing for 20 times.)

1. An antibacterial wig is characterized by being prepared from the following raw materials:

wool, cellulose, silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ionic solution, ethylene glycol diglycidyl ether, urea, polyvinyl alcohol and beeswax.

2. The bacteriostatic wig according to claim 1, which is prepared from the following raw materials in parts by weight:

30-40 parts of wool, 30-40 parts of cellulose, 10-20 parts of silver particle loaded oxidized cellulose, 5-8 parts of cellulose nano-microcrystal, 250 parts of ionic solution, 1-2 parts of ethylene glycol diglycidyl ether, 3-5 parts of urea, 1-2 parts of polyvinyl alcohol and 0.1-0.5 part of beeswax.

3. The bacteriostatic wig according to claim 1, wherein the ionic solution is prepared by the following method:

heating N-butyl bromide to 80-85 ℃, dropwise adding N-methylimidazole, reacting for 10-15h at a constant temperature after dropwise adding, recovering to room temperature, adding acetone, stirring for 10-30min, standing for 10-15h, and distilling under reduced pressure to remove acetone to obtain the ionic solution.

4. The bacteriostatic hairpiece according to claim 3, wherein the mass ratio of N-butyl bromide to N-methylimidazole is 1: 1-1.05.

5. The bacteriostatic wig according to claim 1, wherein the preparation method of the silver particle-loaded oxidized cellulose is as follows:

s1: adding lithium chloride into N, N-dimethylacetamide, stirring for dissolving, adding cellulose, heating to 100 ℃ and 110 ℃, stirring for 2-5h, recovering the room temperature, and stirring for 10-15h to obtain a prefabricated liquid;

s2: adding water drops into the prefabricated liquid, stirring for 30-50min at the speed of 600-;

s3: adding prefabricated cellulose into water, performing ultrasonic dispersion for 10-30min, adding a TEMPO reagent and sodium bromide, uniformly stirring, adjusting the pH of a system to 10-11 by using a sodium hydroxide solution, stirring for 10-30min, adding a sodium hypochlorite solution, reacting for 5-10h, adding ethanol to quench the reaction, transferring the reaction solution into a dialysis bag, dialyzing in ultrapure water for 3-5d, and performing vacuum freeze drying to obtain oxidized cellulose;

s4: adding oxidized cellulose into water, performing ultrasonic dispersion for 10-30min, dropwise adding a silver nitrate solution, stirring for 10-30min, adding sodium borohydride at 0-5 ℃, keeping the temperature, stirring for 1-2h, heating to 70-80 ℃, reacting for 10-15h, performing suction filtration, and performing vacuum freeze drying to obtain the silver particle-loaded oxidized cellulose.

6. The bacteriostatic wig according to claim 5, wherein the weight ratio of cellulose, lithium chloride and N, N-dimethylacetamide in S1 is 1: 8-12: 40-50.

7. The bacteriostatic wig of claim 5, wherein the weight ratio of TEMPO agent to sodium bromide in S2 is 1: 75-80.

8. The bacteriostatic wig according to claim 5, wherein the mass concentration of the sodium hypochlorite solution in S3 is 6-8%, and the mass concentration of the sodium hydroxide solution is 1-3%;

the mass concentration of the silver nitrate solution in the S4 is 10-15%.

9. A method for preparing the bacteriostatic wig according to any one of claims 1-8, characterized in that wool and urea are added into an ionic solution, the temperature is increased to 80-100 ℃, the cellulose is added after the dissolution, the stirring is continued until the dissolution is completed, the temperature is reduced to 50-60 ℃, silver-loaded particle oxidized cellulose, cellulose nano-microcrystal, ethylene glycol diglycidyl ether, polyvinyl alcohol and beeswax are added, the stirring is carried out for 2-5h, the reaction solution is transferred into a vacuum oven for defoaming for 10-15h, a spinning solution is obtained after the defoaming is completed, the spinning solution is extruded into an absolute ethyl alcohol coagulating bath by a syringe and a needle tube, and the bacteriostatic wig is obtained after stretching, water washing and drying.

10. The bacteriostatic wig according to claim 9, wherein the defoaming temperature is 60-70 ℃ and the defoaming pressure is 0.05-0.07 MPa.

Technical Field

The invention relates to the field of wig materials, in particular to a bacteriostatic wig and a preparation method thereof.

Background

Wigs are hair made by artificial techniques, used as decorative accessories to be worn by bald or thin hair, or as part of a costume or professional outfit or fashion decoration.

Human scalp sebaceous glands and sweat glands are rich, and when the wig is worn for a long time, bacteria are easily bred and peculiar smell is generated, so that the wearing comfort is influenced, the scalp is damaged and itchy and inflamed, Chinese patent CN109537081A discloses an antibacterial simulation wig fiber which is composed of 46-48 parts of polybutylene terephthalate, 17-19 parts of polyurethane resin, 13-15 parts of polytetrafluoroethylene 60% concentrated dispersion liquid, 2-3 parts of modified eggshell powder, 1.3-1.5 parts of modified beewax and 0.7-0.9 part of nano zinc oxide.

Disclosure of Invention

The purpose of the invention is as follows: aiming at the technical problem, the invention provides a bacteriostatic wig and a preparation method thereof.

The technical scheme adopted by the invention is as follows:

an antibacterial wig is prepared from the following raw materials:

wool, cellulose, silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ionic solution, ethylene glycol diglycidyl ether, urea, polyvinyl alcohol and beeswax.

Further, the antibacterial wig is prepared from the following raw materials in parts by weight:

30-40 parts of wool, 30-40 parts of cellulose, 10-20 parts of silver particle loaded oxidized cellulose, 5-8 parts of cellulose nano-microcrystal, 250 parts of ionic solution, 1-2 parts of ethylene glycol diglycidyl ether, 3-5 parts of urea, 1-2 parts of polyvinyl alcohol and 0.1-0.5 part of beeswax.

Further, the preparation method of the ionic solution is as follows:

heating N-butyl bromide to 80-85 ℃, dropwise adding N-methylimidazole, reacting for 10-15h at a constant temperature after dropwise adding, recovering to room temperature, adding acetone, stirring for 10-30min, standing for 10-15h, and distilling under reduced pressure to remove acetone to obtain the ionic solution.

Further, the mass ratio of N-butyl bromide to N-methylimidazole is 1: 1-1.05.

Further, the preparation method of the silver particle-loaded oxidized cellulose comprises the following steps:

s1: adding lithium chloride into N, N-dimethylacetamide, stirring for dissolving, adding cellulose, heating to 100 ℃ and 110 ℃, stirring for 2-5h, recovering the room temperature, and stirring for 10-15h to obtain a prefabricated liquid;

s2: adding water drops into the prefabricated liquid, stirring for 30-50min at the speed of 600-;

s3: adding prefabricated cellulose into water, performing ultrasonic dispersion for 10-30min, adding a TEMPO reagent and sodium bromide, uniformly stirring, adjusting the pH of a system to 10-11 by using a sodium hydroxide solution, stirring for 10-30min, adding a sodium hypochlorite solution, reacting for 5-10h, adding ethanol to quench the reaction, transferring the reaction solution into a dialysis bag, dialyzing in ultrapure water for 3-5d, and performing vacuum freeze drying to obtain oxidized cellulose;

s4: adding oxidized cellulose into water, performing ultrasonic dispersion for 10-30min, dropwise adding a silver nitrate solution, stirring for 10-30min, adding sodium borohydride at 0-5 ℃, keeping the temperature, stirring for 1-2h, heating to 70-80 ℃, reacting for 10-15h, performing suction filtration, and performing vacuum freeze drying to obtain the silver particle-loaded oxidized cellulose.

Further, the weight ratio of the cellulose, the lithium chloride and the N, N-dimethylacetamide in the S1 is 1: 8-12: 40-50.

Further, the weight ratio of TEMPO reagent to sodium bromide in S2 was 1: 75-80.

Further, the mass concentration of the sodium hypochlorite solution in the S3 is 6-8%, and the mass concentration of the sodium hydroxide solution is 1-3%;

the mass concentration of the silver nitrate solution in the S4 is 10-15%.

The preparation method of the antibacterial wig comprises the following steps:

adding wool and urea into an ionic solution, heating to 80-100 ℃, stirring until the wool and urea are dissolved, adding cellulose, continuously stirring until the cellulose is dissolved, cooling to 50-60 ℃, adding silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ethylene glycol diglycidyl ether, polyvinyl alcohol and beeswax, stirring for 2-5h, transferring the reaction solution into a vacuum oven for defoaming for 10-15h to obtain a spinning solution after defoaming, extruding the spinning solution into an absolute ethyl alcohol coagulating bath by using an injector and a needle tube, and stretching, washing and drying to obtain the wig antibacterial.

Further, the defoaming temperature is 60-70 ℃, and the defoaming pressure is 0.05-0.07 MPa.

The invention has the beneficial effects that:

the invention provides a bacteriostatic wig, which uses ionic liquid to dissolve wool and cellulose fiber to prepare spinning solution, wherein the wool is natural protein fiber, has excellent and easily obtained performance, only a small part of a large amount of leftover materials generated in the processing process is recycled, the rest is discarded, the wool is used for producing wigs by an inventor, not only can reduce resource waste, but also can obtain economic benefit and is beneficial to environmental protection, the addition of cellulose can improve the brittleness and the spinnability of the wool, the addition of urea can destroy the structure of the wool to loosen the wool and is more easily dissolved, the oxidized cellulose structure is similar to the cellulose, the oxidized cellulose structure and the cellulose have good compatibility, the mechanical property of the wig can be enhanced by the addition of the oxidized cellulose, the surface of the oxidized cellulose is rich in active groups, and the active groups on the surface can form strong bonding force with silver particles, the silver particles are attached to the oxidized cellulose by a reduction method, so that the wig can obtain good antibacterial and antibacterial properties, the silver particles are not easy to fall off, and the antibacterial and long-acting effects are long-lasting^-1The elongation at break is more than or equal to 55.68 percent, the service durability is good, the antibacterial property is good, and the antibacterial property can be still kept after the water washing for 20 times.

Drawings

Fig. 1 is a TEM image of oxidized cellulose loaded with silver particles prepared in example 1 of the present invention, and silver particles distributed on the surface of the oxidized cellulose can be observed.

Detailed Description

The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

Example 1:

an antibacterial wig is prepared from the following raw materials in parts by weight:

35 parts of wool, 35 parts of cellulose, 10 parts of silver particle-loaded oxidized cellulose, 5 parts of cellulose nano-microcrystal, 250 parts of ionic solution, 1 part of ethylene glycol diglycidyl ether, 4 parts of urea, 1 part of polyvinyl alcohol and 0.1 part of beeswax.

The preparation method of the ionic solution comprises the following steps:

heating N-butyl bromide to 80 ℃, dropwise adding N-methylimidazole, wherein the mass ratio of the N-butyl bromide to the N-methylimidazole is 1: 1, keeping the temperature for reaction for 15h after dripping is finished, recovering the room temperature, adding acetone, stirring for 20min, standing for 15h, and then distilling under reduced pressure to remove the acetone, thus obtaining the ionic solution.

The preparation method of the silver particle-loaded oxidized cellulose comprises the following steps:

adding lithium chloride into N, N-dimethylacetamide, stirring for dissolving, and then adding cellulose, wherein the weight ratio of the cellulose to the lithium chloride to the N, N-dimethylacetamide is 1: 12: 45, heating to 100 ℃, stirring for 5h, recovering the room temperature, stirring for 15h to obtain a prefabricated liquid, adding water into the prefabricated liquid in a dripping mode, stirring for 40min at a speed of 800r/min, filtering, freeze-drying a solid to obtain prefabricated cellulose, adding the prefabricated cellulose into water, performing ultrasonic dispersion for 20min, and adding the components in a weight ratio of 1: 80, stirring uniformly, adjusting the pH value of a system to 10 by using a sodium hydroxide solution with the mass concentration of 1%, stirring for 30min, adding a sodium hypochlorite solution with the mass concentration of 6%, reacting for 10h, adding ethanol to quench the reaction, transferring the reaction solution to a dialysis bag, dialyzing in ultrapure water for 5d, carrying out vacuum freeze drying to obtain oxidized cellulose, adding the oxidized cellulose into water, carrying out ultrasonic dispersion for 30min, dropwise adding a silver nitrate solution with the mass concentration of 10%, stirring for 30min, cooling to 0 ℃, adding sodium borohydride, carrying out heat preservation stirring for 2h, heating to 80 ℃, reacting for 10h, carrying out suction filtration, and carrying out vacuum freeze drying to obtain the silver particle-loaded oxidized cellulose.

The preparation method of the antibacterial wig comprises the following steps:

adding wool and urea into an ionic solution, heating to 100 ℃, stirring until the wool and urea are dissolved, adding cellulose, continuously stirring until the cellulose is dissolved, cooling to 50 ℃, adding silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ethylene glycol diglycidyl ether, polyvinyl alcohol and beeswax, stirring for 5 hours, transferring the reaction solution into a vacuum oven for deaeration for 10 hours at the deaeration temperature of 65 ℃ and the deaeration pressure of 0.07MPa, obtaining a spinning solution after deaeration, extruding the spinning solution into an absolute ethyl alcohol coagulation bath by using an injector and a needle tube, stretching, washing with water, and drying to obtain the antibacterial wig.

Example 2:

an antibacterial wig is prepared from the following raw materials in parts by weight:

30 parts of wool, 40 parts of cellulose, 10 parts of silver particle-loaded oxidized cellulose, 8 parts of cellulose nano-microcrystal, 200 parts of ionic solution, 2 parts of ethylene glycol diglycidyl ether, 3 parts of urea, 2 parts of polyvinyl alcohol and 0.1 part of beeswax.

The preparation method of the ionic solution comprises the following steps:

heating N-butyl bromide to 85 ℃, dropwise adding N-methylimidazole, wherein the mass ratio of the N-butyl bromide to the N-methylimidazole is 1: 1, keeping the temperature for reaction for 10h after dripping is finished, recovering the room temperature, adding acetone, stirring for 30min, standing for 10h, and then distilling under reduced pressure to remove the acetone, thus obtaining the ionic solution.

The preparation method of the silver particle-loaded oxidized cellulose comprises the following steps:

adding lithium chloride into N, N-dimethylacetamide, stirring for dissolving, and then adding cellulose, wherein the weight ratio of the cellulose to the lithium chloride to the N, N-dimethylacetamide is 1: 12: 40, heating to 110 ℃, stirring for 2h, recovering the room temperature, then stirring for 15h to obtain a prefabricated liquid, adding water drops into the prefabricated liquid, stirring for 50min at a speed of 600r/min, filtering, freeze-drying the solid to obtain prefabricated cellulose, adding the prefabricated cellulose into water, performing ultrasonic dispersion for 10min, and adding the components in a weight ratio of 1: 80 of TEMPO reagent and sodium bromide are uniformly stirred, the pH value of the system is adjusted to 10 by using a sodium hydroxide solution with the mass concentration of 1%, a sodium hypochlorite solution with the mass concentration of 6% is added after stirring for 30min, ethanol is added after reaction for 10h to quench reaction, the reaction solution is transferred to a dialysis bag to be dialyzed in ultrapure water for 3d, vacuum freeze drying is carried out to obtain oxidized cellulose, the oxidized cellulose is added into water, ultrasonic dispersion is carried out for 30min, a silver nitrate solution with the mass concentration of 10% is dropwise added, after stirring for 30min, the temperature is reduced to 0 ℃, sodium borohydride is added, after heat preservation and stirring for 2h, the temperature is increased to 70 ℃, reaction is carried out for 15h, and after suction filtration, vacuum freeze drying is carried out to obtain the silver particle-loaded oxidized cellulose.

The preparation method of the antibacterial wig comprises the following steps:

adding wool and urea into an ionic solution, heating to 80 ℃, stirring until the wool and urea are dissolved, adding cellulose, continuously stirring until the cellulose is dissolved, cooling to 60 ℃, adding silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ethylene glycol diglycidyl ether, polyvinyl alcohol and beeswax, stirring for 2 hours, transferring the reaction solution into a vacuum oven for deaeration for 15 hours at the deaeration temperature of 60 ℃ and the deaeration pressure of 0.07MPa, obtaining a spinning solution after deaeration, extruding the spinning solution into an absolute ethyl alcohol coagulation bath by using an injector and a needle tube, stretching, washing with water, and drying to obtain the antibacterial wig.

Example 3:

an antibacterial wig is prepared from the following raw materials in parts by weight:

40 parts of wool, 30 parts of cellulose, 20 parts of silver particle-loaded oxidized cellulose, 5 parts of cellulose nano-microcrystal, 250 parts of ionic solution, 1 part of ethylene glycol diglycidyl ether, 5 parts of urea, 1 part of polyvinyl alcohol and 0.5 part of beeswax.

The preparation method of the ionic solution comprises the following steps:

heating N-butyl bromide to 80 ℃, dropwise adding N-methylimidazole, wherein the mass ratio of the N-butyl bromide to the N-methylimidazole is 1: 1, keeping the temperature for reaction for 15h after dripping is finished, recovering the room temperature, adding acetone, stirring for 10min, standing for 15h, and then distilling under reduced pressure to remove the acetone, thus obtaining the ionic solution.

The preparation method of the silver particle-loaded oxidized cellulose comprises the following steps:

adding lithium chloride into N, N-dimethylacetamide, stirring for dissolving, and then adding cellulose, wherein the weight ratio of the cellulose to the lithium chloride to the N, N-dimethylacetamide is 1: 8: 50, heating to 100 ℃, stirring for 5h, recovering the room temperature, then stirring for 10h to obtain a prefabricated liquid, dripping water into the prefabricated liquid, stirring for 30min at the speed of 800r/min, filtering, freeze-drying the solid to obtain prefabricated cellulose, adding the prefabricated cellulose into water, performing ultrasonic dispersion for 30min, and adding the components in a weight ratio of 1: stirring a TEMPO reagent 75 and sodium bromide uniformly, adjusting the pH of a system to 10 by using a sodium hydroxide solution with the mass concentration of 3%, stirring for 10min, adding a sodium hypochlorite solution with the mass concentration of 8%, reacting for 5h, adding ethanol to quench the reaction, transferring the reaction solution to a dialysis bag, dialyzing in ultrapure water for 5d, carrying out vacuum freeze drying to obtain oxidized cellulose, adding the oxidized cellulose into water, carrying out ultrasonic dispersion for 10min, dropwise adding a silver nitrate solution with the mass concentration of 15%, stirring for 10min, cooling to 5 ℃, adding sodium borohydride, carrying out heat preservation stirring for 1h, heating to 80 ℃, reacting for 10h, carrying out suction filtration, and carrying out vacuum freeze drying to obtain the silver particle-loaded oxidized cellulose.

The preparation method of the antibacterial wig comprises the following steps:

adding wool and urea into an ionic solution, heating to 100 ℃, stirring until the wool and urea are dissolved, adding cellulose, continuously stirring until the cellulose is dissolved, cooling to 50 ℃, adding silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ethylene glycol diglycidyl ether, polyvinyl alcohol and beeswax, stirring for 5 hours, transferring the reaction solution into a vacuum oven for deaeration for 10 hours at the deaeration temperature of 70 ℃ and the deaeration pressure of 0.05MPa, obtaining a spinning solution after deaeration, extruding the spinning solution into an absolute ethyl alcohol coagulation bath by using an injector and a needle tube, stretching, washing and drying to obtain the antibacterial wig.

Example 4:

an antibacterial wig is prepared from the following raw materials in parts by weight:

30 parts of wool, 30 parts of cellulose, 10 parts of silver particle-loaded oxidized cellulose, 5 parts of cellulose nano-microcrystal, 200 parts of ionic solution, 1 part of ethylene glycol diglycidyl ether, 3 parts of urea, 1 part of polyvinyl alcohol and 0.1 part of beeswax.

The preparation method of the ionic solution comprises the following steps:

heating N-butyl bromide to 80 ℃, dropwise adding N-methylimidazole, wherein the mass ratio of the N-butyl bromide to the N-methylimidazole is 1: 1, keeping the temperature for reaction for 10 hours after dripping is finished, recovering the room temperature, adding acetone, stirring for 10 minutes, standing for 10 hours, and then distilling under reduced pressure to remove the acetone, thus obtaining the ionic solution.

The preparation method of the silver particle-loaded oxidized cellulose comprises the following steps:

adding lithium chloride into N, N-dimethylacetamide, stirring for dissolving, and then adding cellulose, wherein the weight ratio of the cellulose to the lithium chloride to the N, N-dimethylacetamide is 1: 8: 40, heating to 100 ℃, stirring for 2h, recovering the room temperature, then stirring for 10h to obtain a prefabricated liquid, adding water drops into the prefabricated liquid, stirring for 30min at a speed of 600r/min, filtering, freeze-drying the solid to obtain prefabricated cellulose, adding the prefabricated cellulose into water, performing ultrasonic dispersion for 10min, and adding the components in a weight ratio of 1: stirring a TEMPO reagent 75 and sodium bromide uniformly, adjusting the pH of a system to 10 by using a sodium hydroxide solution with the mass concentration of 1%, stirring for 10min, adding a sodium hypochlorite solution with the mass concentration of 6%, reacting for 5h, adding ethanol to quench the reaction, transferring the reaction solution to a dialysis bag, dialyzing in ultrapure water for 3d, carrying out vacuum freeze drying to obtain oxidized cellulose, adding the oxidized cellulose into water, carrying out ultrasonic dispersion for 10min, dropwise adding a silver nitrate solution with the mass concentration of 10%, stirring for 10min, cooling to 0 ℃, adding sodium borohydride, carrying out heat preservation stirring for 1h, heating to 70 ℃, reacting for 10h, carrying out suction filtration, and carrying out vacuum freeze drying to obtain the silver particle-loaded oxidized cellulose.

The preparation method of the antibacterial wig comprises the following steps:

adding wool and urea into an ionic solution, heating to 80 ℃, stirring until the wool and urea are dissolved, adding cellulose, continuously stirring until the cellulose is dissolved, cooling to 50 ℃, adding silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ethylene glycol diglycidyl ether, polyvinyl alcohol and beeswax, stirring for 2 hours, transferring the reaction solution into a vacuum oven for deaeration for 10 hours at the deaeration temperature of 60 ℃ and the deaeration pressure of 0.05MPa, obtaining a spinning solution after deaeration, extruding the spinning solution into an absolute ethyl alcohol coagulation bath by using an injector and a needle tube, stretching, washing with water, and drying to obtain the antibacterial wig.

Example 5:

an antibacterial wig is prepared from the following raw materials in parts by weight:

40 parts of wool, 40 parts of cellulose, 20 parts of silver particle-loaded oxidized cellulose, 8 parts of cellulose nano-microcrystal, 250 parts of ionic solution, 2 parts of ethylene glycol diglycidyl ether, 5 parts of urea, 2 parts of polyvinyl alcohol and 0.5 part of beeswax.

The preparation method of the ionic solution comprises the following steps:

heating N-butyl bromide to 85 ℃, dropwise adding N-methylimidazole, wherein the mass ratio of the N-butyl bromide to the N-methylimidazole is 1: 1, keeping the temperature for reaction for 15h after dripping is finished, recovering the room temperature, adding acetone, stirring for 30min, standing for 15h, and then distilling under reduced pressure to remove the acetone, thus obtaining the ionic solution.

The preparation method of the silver particle-loaded oxidized cellulose comprises the following steps:

adding lithium chloride into N, N-dimethylacetamide, stirring for dissolving, and then adding cellulose, wherein the weight ratio of the cellulose to the lithium chloride to the N, N-dimethylacetamide is 1: 12: 50, heating to 110 ℃, stirring for 5h, recovering the room temperature, stirring for 15h to obtain a prefabricated liquid, adding water into the prefabricated liquid in a dripping mode, stirring for 50min at a speed of 800r/min, filtering, freeze-drying a solid to obtain prefabricated cellulose, adding the prefabricated cellulose into water, performing ultrasonic dispersion for 30min, and adding the components in a weight ratio of 1: 80, stirring uniformly, adjusting the pH value of a system to 10 by using a sodium hydroxide solution with the mass concentration of 3%, stirring for 30min, adding a sodium hypochlorite solution with the mass concentration of 8%, reacting for 10h, adding ethanol to quench the reaction, transferring the reaction solution to a dialysis bag, dialyzing in ultrapure water for 5d, carrying out vacuum freeze drying to obtain oxidized cellulose, adding the oxidized cellulose into water, carrying out ultrasonic dispersion for 30min, dropwise adding a silver nitrate solution with the mass concentration of 15%, stirring for 30min, cooling to 5 ℃, adding sodium borohydride, carrying out heat preservation stirring for 2h, heating to 80 ℃, reacting for 15h, carrying out suction filtration, and carrying out vacuum freeze drying to obtain the silver particle-loaded oxidized cellulose.

The preparation method of the antibacterial wig comprises the following steps:

adding wool and urea into an ionic solution, heating to 100 ℃, stirring until the wool and urea are dissolved, adding cellulose, continuously stirring until the cellulose is dissolved, cooling to 60 ℃, adding silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ethylene glycol diglycidyl ether, polyvinyl alcohol and beeswax, stirring for 5 hours, transferring the reaction solution into a vacuum oven for deaeration for 15 hours at the deaeration temperature of 70 ℃ and the deaeration pressure of 0.07MPa, obtaining a spinning solution after deaeration, extruding the spinning solution into an absolute ethyl alcohol coagulation bath by using an injector and a needle tube, stretching, washing with water, and drying to obtain the antibacterial wig.

Example 6:

an antibacterial wig is prepared from the following raw materials in parts by weight:

40 parts of wool, 30 parts of cellulose, 10 parts of silver particle-loaded oxidized cellulose, 6 parts of cellulose nano-microcrystal, 250 parts of ionic solution, 1 part of ethylene glycol diglycidyl ether, 4 parts of urea, 1 part of polyvinyl alcohol and 0.1 part of beeswax.

The preparation method of the ionic solution comprises the following steps:

heating N-butyl bromide to 85 ℃, dropwise adding N-methylimidazole, wherein the mass ratio of the N-butyl bromide to the N-methylimidazole is 1: 1, keeping the temperature for reaction for 12h after dripping is finished, recovering the room temperature, adding acetone, stirring for 10min, standing for 10h, and then distilling under reduced pressure to remove the acetone, thus obtaining the ionic solution.

The preparation method of the silver particle-loaded oxidized cellulose comprises the following steps:

adding lithium chloride into N, N-dimethylacetamide, stirring for dissolving, and then adding cellulose, wherein the weight ratio of the cellulose to the lithium chloride to the N, N-dimethylacetamide is 1: 10: 45, heating to 110 ℃, stirring for 4h, recovering the room temperature, stirring for 10h to obtain a prefabricated liquid, adding water into the prefabricated liquid in a dripping mode, stirring for 30min at a speed of 800r/min, filtering, freeze-drying a solid to obtain prefabricated cellulose, adding the prefabricated cellulose into water, performing ultrasonic dispersion for 20min, and adding the components in a weight ratio of 1: 80 of TEMPO reagent and sodium bromide are uniformly stirred, the pH value of the system is adjusted to 10 by using a sodium hydroxide solution with the mass concentration of 1%, a sodium hypochlorite solution with the mass concentration of 6% is added after stirring for 10min, ethanol is added after reaction for 8h to quench reaction, the reaction solution is transferred to a dialysis bag to be dialyzed in ultrapure water for 5d, vacuum freeze drying is carried out to obtain oxidized cellulose, the oxidized cellulose is added into water, ultrasonic dispersion is carried out for 30min, a silver nitrate solution with the mass concentration of 12% is dropwise added, after stirring for 30min, sodium borohydride is added after cooling to 0 ℃, heat preservation and stirring are carried out for 2h, the temperature is increased to 70 ℃ to react for 10h, and after suction filtration, vacuum freeze drying is carried out to obtain the silver particle-loaded oxidized cellulose.

The preparation method of the antibacterial wig comprises the following steps:

adding wool and urea into an ionic solution, heating to 90 ℃, stirring until the wool and urea are dissolved, adding cellulose, continuously stirring until the cellulose is dissolved, cooling to 60 ℃, adding silver particle-loaded oxidized cellulose, cellulose nano-microcrystal, ethylene glycol diglycidyl ether, polyvinyl alcohol and beeswax, stirring for 5 hours, transferring the reaction solution into a vacuum oven for deaeration for 12 hours at the deaeration temperature of 70 ℃ and the deaeration pressure of 0.07MPa, obtaining a spinning solution after deaeration, extruding the spinning solution into an absolute ethyl alcohol coagulation bath by using an injector and a needle tube, stretching, washing with water, and drying to obtain the antibacterial wig.

Comparative example 1:

comparative example 1 is substantially the same as example 1 except that cellulose is oxidized with oxidized cellulose instead of the silver-loaded particles.

Comparative example 2:

comparative example 2 is essentially the same as example 1 except that no cellulose nanocrystallites are added.

Comparative example 3:

comparative example 3 is essentially the same as example 1 except that no urea was added.

Comparative example 4:

comparative example 4 is essentially the same as example 1 except that ethylene glycol diglycidyl ether is not added.

Comparative example 5:

comparative example 5 is essentially the same as example 1 except that no polyvinyl alcohol is added.

Comparative example 6:

comparative example 6 is essentially the same as example 1 except that no beeswax is added.

And (3) performance testing:

referring to GB/T14337-2008 "test method for tensile property of chemical fiber and short fiber", the mechanical strength of the bacteriostatic wigs prepared in examples 1-6 and comparative examples 1-6 of the present invention was tested by using a fiber strength and elongation tester, and the test results are shown in the following table 1:

TABLE 1

As shown in the above table 1, the bacteriostatic wig prepared by the invention has good mechanical property and the breaking strength is more than or equal to 14.06cN & dtex^-1The elongation at break is more than or equal to 55.68 percent, the service durability is good, and the steel plate is not easy to break and fall off.

② referring to GB/T20944.3-2008 < evaluation of antibacterial property of textile part 3: oscillation method, the bacteriostatic rate of the bacteriostatic wigs prepared according to examples 1-6 of the present invention was measured, and the results are shown in table 2 below:

table 2:

as shown in the above table 2, the bacteriostatic wig prepared by the invention has good bacteriostatic property, and can still keep high bacteriostatic property after being washed for 20 times.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.