阅读说明：本技术 一种pu抗病毒防护面料及其应用 (PU (polyurethane) antiviral protective fabric and application thereof ) 是由 黄士龍 于 2021-08-27 设计创作，主要内容包括：本发明涉及到一种PU抗病毒防护布料及其应用,包括灭活因子层和改性纺丝聚氨酯,改性纺丝聚氨酯表面设有下陷型凹槽,下陷型凹槽内设有半永久吸附层,还包括除菌剂、助剂A和助剂B；除菌剂包括纳米石墨烯浆液、稀释剂、分散剂、无机络合物、纳米银离子溶液,助剂A为固化剂,助剂B包括表面活性剂、起泡剂、稀释剂、植物杀菌提取液；外层改性纺丝聚氨酯表面设有下陷型凹槽,将除菌剂喷在其表面时,除菌剂可被吸附进半永久吸附层中并在半永久吸附层中停留一段时间,因除菌剂对细菌病毒等有良好的杀菌杀病毒效果,所以由这种PU抗病毒防护布料做成的防护鞋等在具有良好的抵抗病毒入侵接触到皮肤的时,还可在一定程度上杀死病毒细菌等,净化周围环境。(The invention relates to a PU antiviral protective fabric and application thereof, wherein the PU antiviral protective fabric comprises an inactivation factor layer and modified spinning polyurethane, wherein the surface of the modified spinning polyurethane is provided with a sunken groove, a semi-permanent adsorption layer is arranged in the sunken groove, and the PU antiviral protective fabric further comprises a degerming agent, an auxiliary agent A and an auxiliary agent B; the degerming agent comprises nano graphene slurry, a diluent, a dispersing agent, an inorganic complex and a nano silver ion solution, wherein an auxiliary agent A is a curing agent, and an auxiliary agent B comprises a surfactant, a foaming agent, a diluent and a plant sterilization extracting solution; outer modified spinning polyurethane surface is equipped with sunken type recess, when spouting degerming agent on its surface, degerming agent can be adsorbed in semi-permanent adsorbed layer and stay a period in semi-permanent adsorbed layer, because of the degerming agent has good bactericidal virucidal effect to bacterial virus etc. so when having good anti-virus invasion contact skin, still can kill viral bacterium etc. to a certain extent by protective shoes etc. that this kind of PU antiviral protective cloth made, purify the surrounding environment.)

1. The utility model provides a PU antiviral protection cloth which characterized in that: the modified spinning polyurethane is characterized by comprising an inactivation factor layer and modified spinning polyurethane, wherein a sunken groove is formed in the surface of the modified spinning polyurethane, a semi-permanent adsorption layer is arranged in the sunken groove, and the modified spinning polyurethane further comprises a degerming agent, an auxiliary agent A and an auxiliary agent B; the degerming agent comprises nano graphene slurry, a diluent, a dispersing agent, an inorganic complex and a nano silver ion solution, the auxiliary agent A is a curing agent, and the auxiliary agent B comprises a surfactant, a foaming agent, a diluent and a plant sterilization extracting solution.

2. The PU antiviral protective fabric according to claim 1, wherein the inorganic complex is zinc oxide.

3. The PU antiviral protective fabric according to claim 1, wherein the diluent is distilled water or a mixture of ethanol and water.

4. The PU antiviral protective fabric according to claim 1, wherein the degerming agent comprises the following preparation steps:

step 1: preparing graphite oxide from natural graphite by a Hummers method, dispersing the graphite oxide in water, and removing residual salt and acid by oxidative dialysis; after purification, stripping the graphite oxide into graphene oxide by using an ultrasonic degrader;

step 2: centrifuging the brown dispersion liquid obtained in the step 1 to remove the graphite oxide which is not peeled off, and finally diluting the obtained graphene oxide suspension liquid and adjusting the pH value of the graphene oxide suspension liquid to 10 by using ammonia water;

and step 3: adding hydrazine hydrate into the solution obtained in the step 2, and carrying out a reduction reaction at a high temperature to obtain nano graphene slurry;

and 4, step 4: uniformly mixing the nano graphene slurry obtained in the step (3), a nano silver ion solution and methyl pyrrolidone, and then continuously stirring until the mixture is colloidal, wherein the nano silver ion solution is a nano silver nitrate solution;

and 5: preparing nano zinc oxide powder by adopting a uniform precipitation method, winding bismuth oxide in the nano zinc oxide powder for modification, and slowly adding the nano zinc oxide powder into the nano graphene slurry obtained in the step (3) to load the nano graphene slurry into graphene;

step 6: and (5) mixing the mixed solution obtained in the step (4) and the step (5) in a certain proportion to obtain the bactericide.

5. The PU antiviral protective fabric according to claim 2, wherein: the plant bactericidal extract comprises one or more of honeysuckle extract, mint extract and wild chrysanthemum extract.

6. The PU antiviral protective fabric according to claim 4, wherein: the degerming agent comprises the following substances in percentage by weight:

30-50 parts of nano graphene slurry

30-100 parts of diluent

3-12 parts of dispersant

5-15 parts of inorganic complex

10-20 parts of nano silver ion solution.

7. The PU antiviral protective fabric according to claim 5, wherein: the content of each substance in the auxiliary B is as follows:

5-10 parts of surfactant

Foaming agent 12-20 parts

5-50 parts of diluent

3-12 parts of plant sterilization extract.

8. The PU antiviral protective fabric according to claim 6, wherein: the inactivation factor layer is made of graphene-non-woven fabric, the non-woven fabric is soaked in graphene water solution and is continuously stirred, ultrasonic waves are used for dispersing and solidifying, and the modified spinning polyurethane comprises graphene powder, polyurethane and polyester fibers.

9. Use of the PU antiviral protective fabric according to claims 1 to 7 in protective shoes.

10. Use of the PU antiviral protective cloth of claims 1-7 in protective pants.

Technical Field

The invention relates to an antiviral fabric, in particular to a PU (polyurethane) antiviral protective fabric and application thereof.

Background

The melt-blown layer in the medical mask can effectively prevent the dispersion of the droplets, and the protective clothing can prevent the droplets from directly dispersing due to the stay on the surface of an object; for the above reasons, both protective clothing and masks are disposable.

The protection of the new coronavirus needs good protection work for every person in the society besides all medical staff; on the other hand, the mask needs to be worn effectively to prevent the transmission of droplets, and the droplets should be prevented from falling on the surface of an article and being transmitted by contact on the surface of clothes, so that the new corona viruses can be eliminated completely only by effective protection in all directions.

However, how to carry out effective contact and spread becomes a difficult problem, and if people wear the medical protective clothing all the day like medical care personnel; therefore, the novel antiviral protective clothing has good antiviral effect, can effectively prevent the contact and the transmission of new coronavirus, and can be repeatedly used instead of being used for one time like medical protective clothing.

Disclosure of Invention

The invention aims to provide PU antiviral protective cloth and application thereof.

The technical purpose of the invention is realized by the following technical scheme: a PU antiviral protective fabric comprises an inactivation factor layer and modified spinning polyurethane, wherein a sunken groove is formed in the surface of the modified spinning polyurethane, a semi-permanent adsorption layer is arranged in the sunken groove, and the PU antiviral protective fabric further comprises a degerming agent, an auxiliary agent A and an auxiliary agent B; the degerming agent comprises nano graphene slurry, a diluent, a dispersing agent, an inorganic complex and a nano silver ion solution, the auxiliary agent A is a curing agent, and the auxiliary agent B comprises a surfactant, a foaming agent, a diluent and a plant sterilization extracting solution.

By adopting the technical scheme, the PU antiviral protective fabric mainly comprises an inner inactivated factor layer and outer modified spinning polyurethane; the sunken grooves are formed in the surface of the outer layer modified spinning polyurethane, when the bactericide is sprayed on the surface of the outer layer modified spinning polyurethane, the bactericide can be adsorbed into the semi-permanent adsorption layer and stays in the semi-permanent adsorption layer for a period of time, and the bactericide has good sterilization and virus killing effects on bacteria, viruses and the like, so that protective clothing, protective shoes and the like made of the PU antiviral protective cloth can kill the viruses, the bacteria and the like to a certain extent while resisting virus invasion and contacting the skin well, and the effect of purifying the surrounding environment is achieved; in addition, the PU antiviral protective cloth is mainly used for manufacturing protective shoes and protective trousers, and because the protective shoes are seriously collided and damaged in the using process, a sunken groove and a semi-permanent adsorption layer are arranged on the surfaces of the protective shoes, and the antibacterial agent is sprayed in the protective shoes so as to ensure that the antibacterial agent can stay on the surfaces of the protective shoes as much as possible and play the role of the antibacterial agent; secondly, compared with common cloth, PU has certain structural strength and better conforms to the structure of arranging sunken grooves, and the material with certain structure is more suitable for manufacturing protective shoes and the like; however, in the using process, the semi-permanent adsorption layer is easy to rub off when the protective shoe is used, so that the auxiliary B can be sprayed in the sunken groove again after the semi-permanent adsorption layer is rubbed off, and then the auxiliary A is sprayed in the sunken groove, and the auxiliary A is coagulated into the semi-permanent adsorption layer again under the action of the auxiliary B.

Preferably, zinc oxide is used as the inorganic complex.

By adopting the technical scheme, the nano zinc oxide is a good bactericide, the nano zinc oxide can continuously release zinc ions in an aqueous medium, the zinc ions can enter cell membranes to destroy the cell membranes, and when the zinc ions react with certain groups of proteins in cells, the space structures of the bacteria and the proteins in the cells are destroyed, so that protease in the cells is inactivated to kill the bacteria, and after the zinc ions are destroyed, the zinc ions can be dissociated from the bacteria, and the sterilization process is repeated; secondly, the nano zinc oxide can interact with the cell wall on the surface of the bacteria to destroy the cell wall of the bacteria, so that the contents are released to kill the bacteria; thirdly, under the irradiation of ultraviolet rays, the nano zinc oxide can generate hole electron pairs, electrons and holes respectively migrate to the surfaces of zinc oxide particles from a conduction band and a valence band, water or hydroxyl adsorbed on the surfaces are converted into hydroxyl radicals, adsorbed oxygen is converted into active oxygen, and the hydroxyl radicals and the active oxygen have extremely strong chemical activity and can react with most organic matters to kill most bacteria and viruses.

Preferably, the diluent is distilled water or a mixture of ethanol and water.

Preferably, the degerming agent comprises the following preparation steps:

step 1: preparing graphite oxide from natural graphite by a Hummers method, dispersing the graphite oxide in water, and removing residual salt and acid by oxidative dialysis; after purification, stripping the graphite oxide into graphene oxide by using an ultrasonic degrader;

step 2: centrifuging the brown dispersion liquid obtained in the step 1 to remove the graphite oxide which is not peeled off, and finally diluting the obtained graphene oxide suspension liquid and adjusting the pH value of the graphene oxide suspension liquid to 10 by using ammonia water;

and step 3: adding hydrazine hydrate into the solution obtained in the step 2, and carrying out a reduction reaction at a high temperature to obtain nano graphene slurry;

and 4, step 4: uniformly mixing the nano graphene slurry obtained in the step (3), a nano silver ion solution and methyl pyrrolidone, and then continuously stirring until the mixture is colloidal, wherein the nano silver ion solution is a nano silver nitrate solution;

and 5: preparing nano zinc oxide powder by adopting a uniform precipitation method, winding bismuth oxide in the nano zinc oxide powder for modification, and slowly adding the nano zinc oxide powder into the nano graphene slurry obtained in the step (3) to load the nano graphene slurry into graphene;

step 6: and (5) mixing the mixed solution obtained in the step (4) and the step (5) in a certain proportion to obtain the bactericide.

By adopting the technical scheme, the problem of the recombination rate of electron-hole pairs of the nano zinc oxide can be reduced by adding the graphene, and the sterilization efficiency and effect can be improved; bismuth oxide (Bi)₂O₃) The sterilization effect of the zinc oxide is also influenced to a certain extent, and the best effect is achieved when the doping amount is 3-5%; silver is a traditional antibacterial material, but the nano silver ions can greatly enhance the degerming property due to the large specific surface area, but the nano material has a characteristic that the nano material is prone to agglomeration, so that the degerming effect is limited to a great extent; the composite Ag/graphene composite material formed by the graphene and the silver ions effectively solves the problem, so that the silver ions release degerming performance which is in direct proportion to the specific surface area of the silver ions.

Preferably, the plant bactericidal extract comprises one or more of honeysuckle extract, mint extract and wild chrysanthemum extract.

Preferably, the content of each substance in the degerming agent is as follows:

30-50 parts of nano graphene slurry

30-100 parts of diluent

3-12 parts of dispersant

5-15 parts of inorganic complex

10-20 parts of nano silver ion solution.

Preferably, the content of each substance in the auxiliary B is as follows:

5-10 parts of surfactant

Foaming agent 12-20 parts

5-50 parts of diluent

3-12 parts of plant sterilization extract.

Preferably, the inactivation factor layer is made of graphene-non-woven fabric, the non-woven fabric is soaked in graphene aqueous solution and continuously stirred, and then ultrasonic dispersion solidification is performed, wherein the modified spinning polyurethane comprises graphene powder, polyurethane and polyester fiber.

By adopting the technical scheme, when the PU fabric is prepared, the graphene powder is dispersedly added in the PU fabric, so that the PU fabric has certain wear resistance, and the surface of the PU fabric can be atomized by adjusting the using amount of the graphene powder, so that the bactericide can be better attached to the surface of the PU fabric.

The technical purpose of the invention is realized by the following technical scheme: an application of PU antivirus protective cloth on protective shoes.

The technical purpose of the invention is realized by the following technical scheme: an application of PU antivirus protection cloth on protection trousers.

In conclusion, the invention has the following beneficial effects:

1. the PU antiviral protective fabric mainly comprises an inner inactivated factor layer and outer modified spinning polyurethane; the sunken grooves are formed in the surface of the outer layer modified spinning polyurethane, when the bactericide is sprayed on the surface of the outer layer modified spinning polyurethane, the bactericide can be adsorbed into the semi-permanent adsorption layer and stays in the semi-permanent adsorption layer for a period of time, and the bactericide has good sterilization and virus killing effects on bacteria, viruses and the like, so that protective clothing, protective shoes and the like made of the PU antiviral protective cloth can kill the viruses, the bacteria and the like to a certain extent while resisting virus invasion and contacting the skin well, and the effect of purifying the surrounding environment is achieved; in addition, the PU antiviral protective cloth is mainly used for manufacturing protective shoes and protective trousers, and because the protective shoes are seriously collided and damaged in the using process, a sunken groove and a semi-permanent adsorption layer are arranged on the surfaces of the protective shoes, and the antibacterial agent is sprayed in the protective shoes so as to ensure that the antibacterial agent can stay on the surfaces of the protective shoes as much as possible and play the role of the antibacterial agent; secondly, compared with common cloth, PU has certain structural strength and better conforms to the structure of arranging sunken grooves, and the material with certain structure is more suitable for manufacturing protective shoes and the like;

2. in the using process, the semi-permanent adsorption layer is easy to rub off when the protective shoe is used, so that the auxiliary B can be sprayed in the sunken groove again after the semi-permanent adsorption layer is rubbed off, and then the auxiliary A is sprayed in the sunken groove, and the auxiliary A is condensed into the semi-permanent adsorption layer again under the action of the auxiliary B;

3. the problem of the recombination rate of electron-hole pairs of the nano zinc oxide can be reduced by adding the graphene, and the sterilization efficiency and effect can be improved; bismuth oxide (Bi)₂O₃) The sterilization effect of the zinc oxide is also influenced to a certain extent, and the best effect is achieved when the doping amount is 3-5%;

4. silver is a traditional antibacterial material, but the nano silver ions can greatly enhance the degerming property due to the large specific surface area, but the nano material has a characteristic that the nano material is prone to agglomeration, so that the degerming effect is limited to a great extent; the composite Ag/graphene composite material formed by the graphene and the silver ions effectively solves the problem, so that the silver ions release degerming performance which is in direct proportion to the specific surface area of the silver ions.

Detailed Description

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Example (b):

a PU antiviral protective fabric and application thereof comprise an inactivation factor layer and modified spinning polyurethane, wherein the surface of the modified spinning polyurethane is provided with a sunken groove, a semi-permanent adsorption layer is arranged in the sunken groove, and the PU antiviral protective fabric further comprises a degerming agent, an auxiliary agent A and an auxiliary agent B; the degerming agent comprises nano graphene slurry, a diluent, a dispersing agent, an inorganic complex and a nano silver ion solution, the auxiliary agent A is a curing agent, and the auxiliary agent B comprises a surfactant, a foaming agent, a diluent and a plant sterilization extracting solution; the inorganic complex adopts zinc oxide; the diluent adopts distilled water or a mixture of ethanol and water; the plant bactericidal extract comprises one or more of flos Lonicerae extract, herba Menthae extract, and flos Chrysanthemi Indici extract.

The degerming agent comprises the following preparation steps:

step 1: preparing graphite oxide from natural graphite by a Hummers method, dispersing the graphite oxide in water, and removing residual salt and acid by oxidative dialysis; after purification, stripping the graphite oxide into graphene oxide by using an ultrasonic degrader;

step 2: centrifuging the brown dispersion liquid obtained in the step 1 to remove the graphite oxide which is not peeled off, and finally diluting the obtained graphene oxide suspension liquid and adjusting the pH value of the graphene oxide suspension liquid to 10 by using ammonia water;

and step 3: adding hydrazine hydrate into the solution obtained in the step 2, and carrying out a reduction reaction at a high temperature to obtain nano graphene slurry;

and 4, step 4: uniformly mixing the nano graphene slurry obtained in the step (3), a nano silver ion solution and methyl pyrrolidone, and then continuously stirring until the mixture is colloidal, wherein the nano silver ion solution is a nano silver nitrate solution;

and 5: preparing nano zinc oxide powder by adopting a uniform precipitation method, winding bismuth oxide in the nano zinc oxide powder for modification, and slowly adding the nano zinc oxide powder into the nano graphene slurry obtained in the step (3) to load the nano graphene slurry into graphene;

step 6: and (5) mixing the mixed solution obtained in the step (4) and the step (5) in a certain proportion to obtain the bactericide.

The content of each substance in the degerming agent is as follows:

30-50 parts of nano graphene slurry

30-100 parts of diluent

3-12 parts of dispersant

5-15 parts of inorganic complex

10-20 parts of nano silver ion solution.

The content of each substance in the auxiliary B is as follows:

5-10 parts of surfactant

Foaming agent 12-20 parts

5-50 parts of diluent

3-12 parts of plant sterilization extract.

The inactivation factor layer is made of graphene-non-woven fabric, the non-woven fabric is soaked in graphene water solution and is continuously stirred, ultrasonic waves are used for dispersing and curing, and the modified spinning polyurethane comprises graphene powder, polyurethane and polyester fibers.

The PU antiviral protective cloth can be applied to protective shoes, protective trousers or protective clothes.

The contents of all substances in the bacteria removing agent in the embodiments 1 to 5 are different, and the contents are shown in the following table:

table 1:

	example 1	Example 2	Example 3	Example 4	Example 5
						Nano graphene slurry	30	35	40	45	50
Diluent	30	60	80	45	100
						Dispersing agent	3	5	8	10	12
Inorganic complex	5	7	9	12	15
						Nano silver ion solution	10	12	15	18	20

In examples 1 to 5, the proportions of the aid A and the aid B are the same, and the contents of the substances in the aid B are the same.

In examples 6 to 10, the content ratios of the substances in the bactericide are the same, and the contents of the substances in the auxiliary B are shown in the following table 2:

table 2:

	example 6	Example 7	Example 8	Example 9	Example 10
						Surface active agent	5	6	8	9	10
Foaming agent	12	15	18	13	20
						Diluent	5	20	10	35	50
Plant bactericidal extract	3	6	9	10	12

The sterilization performance and the protein adsorption performance in examples 1 to 10 were tested and recorded in the following table 3, wherein the colonies were pseudomonas defectively and the protein was bovine serum albumin;

table 3:

	bacteria removal rate	Protein adsorption Rate		Bacteria removal rate	Protein adsorption Rate
						Example 1	100%	＜0.5%	Example 6	100%	＜0.5%
Example 2	100%	＜0.5%	Example 7	100%	＜0.5%
						Example 3	100%	＜0.5%	Example 8	100%	＜0.5%
Example 4	100%	＜0.5%	Example 9	100%	＜0.5%
						Example 5	100%	＜0.5%	Example 10	100%	＜0.5%

After the PU fabric prepared in the examples 1 to 10 is placed in a closed environment for a period of time, the germ content in the closed environment is recorded, wherein the initial germ content of the environment is one hundred percent, and the germ content change is recorded in the following table 4;

table 4:

	amount of change of germs	Amount of change of germs		Amount of change of germs	Amount of change of germs
						Example 1	60min	5.0%	Example 6	150min	12.1%
Example 2	150min	11.3%	Example 7	60min	5.6%
						Example 3	60min	4.9%	Example 8	150min	10.9%
Example 4	150min	12.2%	Example 9	60min	5.6%
						Example 5	60min	4.2%	Example 10	150min	11.9%

In summary, the following steps:

the antiviral PU protective clothing in the embodiments 1 to 10 has good antibacterial and antivirus effects, the PU antiviral protective clothing in the embodiments 1 to 10 is placed in clean water for repeated washing, the auxiliary agent B is sprayed on the surface of the PU antiviral protective clothing again, the auxiliary agent A is sprayed, the auxiliary agent B is solidified to form a semi-permanent adsorption layer under the action of the auxiliary agent A, and then the degerming agent is sprayed in the auxiliary agent B, the degerming performance of the anti-virus PU protective clothing is tested, the degerming performance of the anti-virus PU protective clothing is not changed, the antiviral PU protective clothing is not damaged, and the anti-virus PU protective clothing still has good protection effect, so that the problems in the background technology are solved.