Preparation method of high-antibacterial wear-resistant non-woven fabric

Abstract

The present application relates to the technical field of textiles, and particularly to a preparation method of high-antibacterial wear-resistant non-woven fabric; the high-antibacterial wear-resistant non-woven fabric is prepared from 4-methacrylamide benzophenone, acrylic acid-based nano titanium dioxide, methacryl-caged polysilsesquioxane, vinyl guanidinamide and cellulose non-woven fabric; the high-antibacterial wear-resistant non-woven fabric prepared has excellent washing resistance, long-term effectiveness and certain anti-pollution ability; meanwhile, the high-antibacterial wear-resistant non-woven fabric has photoactivity and synergistic bactericidal effect, and the antibacterial rate is greater than 99.99% in 1h, so that all bacteria are basically killed; the high-antibacterial wear-resistant non-woven fabric prepared has rapid bactericidal ability under light, long-term bactericidal ability in darkness and self-cleaning potential, and can better adapt to practical application.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textiles, and in particular to a preparation method of high-antibacterial wear-resistant non-woven fabric. BACKGROUND

[0002] Non-woven fabric, also known as "non-woven fabric". The formation process of non-woven fabric is different from that of traditional woven fabric. In the manufacturing process, no spinning is needed, but the fibers to be spun are first arranged in a random or directional manner to form a network structure, and then consolidated by chemical, thermal bonding or mechanical methods. Therefore, no thread can be found in the use process of non-woven fabric. Non-woven fabric has many advantages such as light weight, good air permeability, durability, moisture resistance, environmental protection and so on. Since the middle of last century, it has been widely used and applied in fields such as agriculture, engineering construction, clothing, medical and health care.

[0003] Patent document CN202210034630.5 relates to an antibacterial wear-resistant non-woven fabric and a preparation method thereof, comprising the following steps: S1) dispersing the graphene oxide-dodecyl dimethyl benzyl ammonium chloride complex in a konjac glucomannan aqueous solution to obtain a finishing agent; S2) uniformly spraying the finishing agent of step S1 on the non-woven fabric by spraying method, drying, repeating spraying 1-2 times, and then airing to obtain the antibacterial wear-resistant non-woven fabric. The present application uses graphene oxide-dodecyl dimethyl benzyl ammonium chloride complex as the main antibacterial agent, which is attached to the non-woven fabric through the konjac glucomannan aqueous solution, so that the non-woven fabric has antibacterial and wear-resistant properties, and has strong applicability.

[0004] Patent document CN202123392794.5 provides an antibacterial wear-resistant non-woven fabric, comprising: a cleaning layer; a waterproof layer, the waterproof layer is arranged at the bottom end of the cleaning layer; an antibacterial layer, the antibacterial layer is connected to the bottom end of the waterproof layer; a tensile layer, the tensile layer is connected to the bottom end of the antibacterial layer; a thermal insulation layer, the thermal insulation layer is arranged at the bottom end of the tensile layer; a skin-friendly layer, the skin-friendly layer is arranged at the bottom end of the thermal insulation layer, for improving the skin-friendliness of the non-woven fabric. The antibacterial wear-resistant non-woven fabric provided by the present application improves the skin-friendliness of the non-woven fabric by using milk fibers in the skin-friendly layer, and is beneficial to improving the body feeling of the user when using the non-woven fabric product. The milk fiber has a cashmere-like hand feeling, a fine single filament fineness, a light specific gravity, a breaking elongation, a curling elasticity and a curling recovery rate closest to cashmere and wool, and a fiber that is fluffy, soft and soft, with a cashmere-like softness, comfort and smoothness.

[0005] The utility model provides a kind of antibacterial wear-resistant non-woven fabric, including active carbon fiber antibacterial layer and non-woven fabric layer, one side of the active carbon fiber antibacterial layer is connected with the non-woven fabric layer hot-pressing connection;The other side of the active carbon fiber antibacterial layer is connected with wear-resistant strip, and the wear-resistant strip is polyester synthetic fiber strip.The utility model realizes the antibacterial function of non-woven fabric by adopting multilayer structure, and the active carbon fiber antibacterial layer is compounded on non-woven fabric layer, and the active carbon fiber antibacterial layer is in the outermost layer, can directly block contact bacteria.The wear resistance of non-woven fabric is further enhanced by the wear-resistant strip bonded on the surface of active carbon fiber antibacterial layer.

[0006] The antibacterial wear-resistant non-woven fabric prepared by the above patents and existing disclosed technologies generally has the following defects: the bacterial debris after being killed by quaternary ammonium salt antibacterial cellulose often accumulates on the surface of cellulose, is difficult to remove, and may cause the decrease of antibacterial performance and the pollution of materials; and the photo-induced antibacterial surface often does not have antibacterial ability in darkness and is easily contaminated by bacteria. SUMMARY

[0007] The present application aims to provide a preparation method of high antibacterial wear-resistant non-woven fabric to solve the problems in the above background art.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0009] S1: according to mass fraction, 0.05-0.5 parts of initiator, 200-260 parts of anhydrous ethanol, 30-45 parts of washed cellulose non-woven fabric, 0.05-0.3 parts of auxiliary agent are added in a mixer, and stirred and mixed;

[0010] S2: 0.004-0.01 parts of 4-methyl acrylamide benzophenone, 1-4 parts of acrylic acid-based nano titanium dioxide, 0.03-0.3 parts of methacryl-caged polysilsesquioxane (CAS number 160185-24-0), and 0.1-0.8 parts of vinyl guanamine are further added, and the reaction is stirred and heated;

[0011] S3: after the reaction is completed, the product is first washed and filtered with ethanol, then washed and filtered with deionized water, and dried to obtain high antibacterial wear-resistant non-woven fabric.

[0012] As a preferred, the initiator is potassium persulfate.

[0013] As a preferred, the auxiliary agent is HNO3.

[0014] As a preferred, the reaction temperature is 60-80℃, and the reaction time is 3-6h.

[0015] As a preferred, the preparation method of the acrylic acid-based nano titanium dioxide is as follows:

[0016] According to mass parts, 0.5-2 parts of propylene-based silane, 200-260 parts of water, 30-40 parts of nano titanium dioxide are added in a mixer, and stirred and mixed at 60-70 DEG C for 0.5-2 h; filtered, and dried.

[0017] As preferred, the propylene-based silane is selected from 1-methyl-2-(trimethoxysilyl)ethyl methacrylate (CAS No.: 51749-70-3), methacrylic acid propoxy triacetoxy silane (CAS No.: 51772-85-1), 2-hydroxy-3-[3-(trimethoxysilyl)propoxy] methyl propyl methacrylate (CAS No.: 59214-63-0).

[0018] As preferred, the preparation method of the washed cellulose non-woven fabric is:

[0019] The cellulose non-woven fabric is soaked in acetone for 2-4 h, ultrasonically treated for 20-40 min, and dried at 90-105 DEG C to obtain the washed cellulose non-woven fabric.

[0020] As preferred, the preparation method of the 4-methyl acrylamide benzophenone is:

[0021] S1: according to mass parts, 5-10 parts of 4-aminobenzophenone, 5-10 parts of triethylamine, 22-40 parts of N,N-dimethylformamide are added in a reactor;

[0022] S2: 5-10 parts of methacryloyl chloride are weighed and dissolved in 8-16 parts of N,N-dimethylformamide, then slowly added to the reactor, after the reaction is completed, poured into 200-300 parts of cold water, fully stirred and then filtered;

[0023] S3: the filter cake is washed with Na2CO3 solution and deionized water respectively, dried at 50-65 DEG C for 30-40 h, recrystallized, and dried to obtain 4-methyl acrylamide benzophenone.

[0024] As preferred, the reaction temperature is 30-50 DEG C, and the reaction time is 8-14 h.

[0025] As preferred, the mass concentration of the Na2CO3 aqueous solution is 5-10%.

[0026] Compared with the prior art, the beneficial effects of the present application are:

[0027] (1) the high-antibacterial wear-resistant non-woven fabric prepared by the present application has excellent water washing resistance, long-term effect and certain anti-pollution ability;

[0028] (2) the high-antibacterial wear-resistant non-woven fabric prepared by the present application has photoactivity and has a synergistic bactericidal effect, with an antibacterial rate of >99.99% in 1 h, basically killing all bacteria;

[0029] (3) The high-antibacterial wear-resistant non-woven fabric prepared by the application has sterilization ability in dark conditions, can effectively prevent bacterial pollution in dark conditions, and can also provide long-acting sterilization ability in dark conditions;

[0030] (4) The high-antibacterial wear-resistant non-woven fabric prepared by the application has both rapid sterilization ability under light and long-acting sterilization ability in dark conditions, and has the potential of self-cleaning, and can better adapt to actual application. DETAILED DESCRIPTION

[0031] The application will be further described below in combination with specific embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the application, and cannot be used to limit the protection scope of the application.

[0032] Embodiment 1

[0033] A preparation method of a high-antibacterial wear-resistant non-woven fabric, the operation steps of which are as follows:

[0034] S1: 0.05 g of an initiator, 200 g of anhydrous ethanol, 30 g of a cleaned cellulose non-woven fabric, 0.05 g of an auxiliary agent, are added into a mixer and stirred and mixed;

[0035] S2: 0.004 g of 4-methyl acrylamide benzophenone, 1 g of acrylic acid-based nano titanium dioxide, 0.03 g of a methyl propenyl-caged polysilsesquioxane (CAS number 160185-24-0), and 0.1 g of a vinyl guanamine are added, and the mixture is stirred and heated for reaction;

[0036] S3: After the reaction is completed, the mixture is first cleaned and filtered with ethanol, and then cleaned and filtered with deionized water, and dried to obtain the high-antibacterial wear-resistant non-woven fabric.

[0037] The initiator is potassium persulfate.

[0038] The auxiliary agent is HNO3.

[0039] The reaction temperature is 60°C, and the reaction time is 3 h.

[0040] The preparation method of the acrylic acid-based nano titanium dioxide is as follows:

[0041] 0.5 g of propenyl silane, 200 g of water, and 30 g of nano titanium dioxide are added into a mixer, and stirred and mixed at 60°C for 0.5 h; filtered and dried.

[0042] The propenyl silane is selected from 1-methyl-2-(trimethoxysilyl)ethyl methacrylate (CAS number: 51749-70-3).

[0043] The preparation method of the cleaned cellulose non-woven fabric is as follows:

[0044] The cellulose non-woven fabric is soaked with acetone for 2h, ultrasonic for 20min, and dried at 90℃ to obtain the cleaned cellulose non-woven fabric.

[0045] The preparation method of the 4-methyl acrylamide benzophenone is:

[0046] S1: 5g of 4-aminobenzophenone, 5g of triethylamine, and 22g of N,N-dimethylformamide are added into a reactor;

[0047] S2: 5g of methacryloyl chloride is dissolved in 8g of N,N-dimethylformamide, and then slowly added into the reactor; after the reaction is completed, the mixture is poured into 200g of cold water, stirred thoroughly, and then filtered;

[0048] S3: the filter cake is washed with a Na2CO3 solution and deionized water respectively, dried at 50℃ for 30h, recrystallized, and dried to obtain 4-methyl acrylamide benzophenone.

[0049] The reaction temperature is 30℃, and the reaction time is 8h.

[0050] The mass concentration of the Na2CO3 aqueous solution is 5%.

[0051] Example 2

[0052] A preparation method of a high-antibacterial wear-resistant non-woven fabric, the operation steps of which are:

[0053] S1: 0.2g of an initiator, 220g of anhydrous ethanol, 35g of cleaned cellulose non-woven fabric, and 0.1g of an auxiliary agent are added into a mixer and stirred and mixed;

[0054] S2: 0.006g of 4-methyl acrylamide benzophenone, 2g of acrylic acid-based nano titanium dioxide, 0.1g of a methyl acryl-caged polysilsesquioxane (CAS No. 160185-24-0), and 0.3g of vinyl guanamine are added, and the mixture is stirred and heated for reaction;

[0055] S3: after the reaction is completed, the mixture is first washed with ethanol and then with deionized water, and then dried to obtain the high-antibacterial wear-resistant non-woven fabric.

[0056] The initiator is potassium persulfate.

[0057] The auxiliary agent is HNO3.

[0058] The reaction temperature is 65℃, and the reaction time is 4h.

[0059] The preparation method of the acrylic acid-based nano titanium dioxide is:

[0060] In the mixer, add 1 g of propylene silane, 220 g of water, 34 g of nano titanium dioxide, and stir for 1 h at 65℃; filter and dry.

[0061] The propylene acrylate silane is selected from propoxy triacetyl methacrylate silane (CAS No.: 51772-85-1).

[0062] The preparation method of the washed cellulose non-woven fabric is:

[0063] Soak the cellulose non-woven fabric in acetone for 3 h, ultrasonic for 25 min, and dry at 95℃ to obtain the washed cellulose non-woven fabric.

[0064] The preparation method of the 4-methyl acrylamide benzophenone is:

[0065] S1: In the reactor, add 7 g of 4-amino benzophenone, 6 g of triethylamine, and 28 g of N,N-dimethylformamide;

[0066] S2: Weigh 6 g of methacryloyl chloride and dissolve it in 12 g of N,N-dimethylformamide, then slowly add it to the reactor. After the reaction is completed, pour it into 240 g of cold water, stir thoroughly, and then filter;

[0067] S3: The filter cake is washed with Na2CO3 solution and deionized water, respectively, dried at 55℃ for 34 h, recrystallized, and dried to obtain 4-methyl acrylamide benzophenone.

[0068] The reaction temperature is 35℃, and the reaction time is 10 h.

[0069] The mass concentration of the Na2CO3 aqueous solution is 6%.

[0070] Example 3

[0071] The preparation method of a high-antibacterial and wear-resistant non-woven fabric is as follows:

[0072] S1: In the mixer, add 0.4 g of initiator, 240 g of anhydrous ethanol, 40 g of washed cellulose non-woven fabric, and 0.2 g of auxiliary agent, and stir to mix;

[0073] S2: Add 0.008 g of 4-methyl acrylamide benzophenone, 3 g of propylene acrylate nano titanium dioxide, 0.2 g of methyl methacrylate cage polysilsesquioxane (CAS No. 160185-24-0), and 0.6 g of vinyl guanamine, and stir to react;

[0074] S3: After the reaction is completed, first wash and filter with ethanol, then wash and filter with deionized water, and dry to obtain the high-antibacterial and wear-resistant non-woven fabric.

[0075] The initiator is potassium persulfate.

[0076] The auxiliary agent is HNO3.

[0077] The reaction temperature is 75℃, and the reaction time is 5h.

[0078] The preparation method of the propylene-based nanometer titanium dioxide is:

[0079] In a mixer, 1.5g of propylene-based silane, 240g of water, and 38g of nanometer titanium dioxide are mixed at 65℃ for 1.5h; filtration and drying.

[0080] The propylene-based silane is selected from propoxy triacetoxy silane (CAS number: 51772-85-1).

[0081] The preparation method of the washed cellulose non-woven fabric is:

[0082] The cellulose non-woven fabric is soaked in acetone for 3h, ultrasonic for 35min, and dried at 100℃ to obtain the washed cellulose non-woven fabric.

[0083] The preparation method of the 4-methyl acrylamide benzophenone is:

[0084] S1: In a reactor, 8g of 4-amino benzophenone, 8g of triethylamine, and 36g of N,N-dimethylformamide are added;

[0085] S2: 9g of methacryloyl chloride is dissolved in 14g of N,N-dimethylformamide, and then slowly added to the reactor; after the reaction is completed, pour into 280g of cold water, stir well, and then filter;

[0086] S3: The filter cake is washed with Na2CO3 solution and deionized water respectively, dried at 60℃ for 38h, recrystallized, and dried to obtain 4-methyl acrylamide benzophenone.

[0087] The reaction temperature is 45℃, and the reaction time is 12h.

[0088] The mass concentration of the Na2CO3 aqueous solution is 10%.

[0089] Example 4

[0090] The preparation method of the high-antibacterial wear-resistant non-woven fabric comprises the following operation steps:

[0091] S1: In a mixer, 0.5g of initiator, 260g of anhydrous ethanol, 45g of washed cellulose non-woven fabric, and 0.3g of auxiliary agent are mixed and stirred;

[0092] S2: 0.01 g of 4-methyl methacrylamide benzophenone, 4 g of acrylic acid-based nanometer titanium dioxide, 0.3 g of methacryl-caged polysilsesquioxane (CAS No. 160185-24-0), 0.8 g of vinyl guanamine are added, and the reaction is stirred and warmed;

[0093] S3: After the reaction is completed, ethanol is used for washing and filtration, and then deionized water is used for washing and filtration, and the high-antibacterial wear-resistant non-woven fabric is obtained after drying.

[0094] The initiator is potassium persulfate.

[0095] The auxiliary agent is HNO3.

[0096] The reaction temperature is 80°C, and the reaction time is 6 h.

[0097] The preparation method of the acrylic acid-based nanometer titanium dioxide is as follows:

[0098] In a mixer, 2 g of acrylic acid-based nanometer titanium dioxide is added, 260 g of water, 40 g of nanometer titanium dioxide, and 70°C stirring is performed for 2 h; filtration and drying are performed.

[0099] The acrylic acid-based silane is selected from 2-hydroxy-3-[3-(trimethoxysilyl) propoxy] methyl propyl methacrylate (CAS No. 59214-63-0).

[0100] The preparation method of the washed cellulose non-woven fabric is as follows:

[0101] The cellulose non-woven fabric is soaked in acetone for 4 h, ultrasonic treatment is performed for 40 min, and the washed cellulose non-woven fabric is obtained after drying at 105°C.

[0102] The preparation method of the 4-methyl methacrylamide benzophenone is as follows:

[0103] S1: In a reactor, 10 g of 4-aminobenzophenone, 10 g of triethylamine, and 40 g of N,N-dimethylformamide are added;

[0104] S2: 10 g of methacryloyl chloride is dissolved in 16 g of N,N-dimethylformamide, and then slowly added to the reactor; after the reaction is completed, 300 g of cold water is poured in, and the mixture is stirred and filtered after being stirred sufficiently;

[0105] S3: The filter cake is washed with a Na2CO3 solution and deionized water, respectively, and dried at 65°C for 40 h; recrystallization, drying, and 4-methyl methacrylamide benzophenone are obtained.

[0106] The reaction temperature is 50°C, and the reaction time is 14 h.

[0107] The mass concentration of the Na2CO3 aqueous solution is 10%.

[0108] Comparative Example 1

[0109] A preparation method of a high-antibacterial wear-resistant non-woven fabric, the operation steps of which are as follows:

[0110] S1: 0.05 g of an initiator, 200 g of anhydrous ethanol, 30 g of washed cellulose non-woven fabric, and 0.05 g of an auxiliary agent were added into a mixer and stirred and mixed;

[0111] S2: 0.004 g of 4-methyl acrylamide benzophenone, 0.03 g of methacryl-caged polysilsesquioxane CAS 160185-24-0, and 0.1 g of vinyl guanamine were added, and the mixture was stirred and heated for reaction;

[0112] S3: After the reaction was completed, the mixture was first washed and filtered with ethanol, and then washed and filtered with deionized water, and dried to obtain a high-antibacterial wear-resistant non-woven fabric.

[0113] The initiator is potassium persulfate.

[0114] The auxiliary agent is HNO3.

[0115] The reaction temperature is 60°C, and the reaction time is 3 h.

[0116] The preparation method of the washed cellulose non-woven fabric is as follows:

[0117] The washed cellulose non-woven fabric was obtained by soaking cellulose non-woven fabric in acetone for 2 h, ultrasonic treatment for 20 min, and drying at 90°C.

[0118] The preparation method of the 4-methyl acrylamide benzophenone is as follows:

[0119] S1: 5 g of 4-aminobenzophenone, 5 g of triethylamine, and 22 g of N,N-dimethylformamide were added into a reactor;

[0120] S2: 5 g of methacryloyl chloride was dissolved in 8 g of N,N-dimethylformamide, and then slowly added into the reactor. After the reaction was completed, the mixture was poured into 200 g of cold water, stirred thoroughly, and then filtered;

[0121] S3: The filter cake was washed with a Na2CO3 solution and deionized water, respectively, dried at 50°C for 30 h, recrystallized, and dried to obtain 4-methyl acrylamide benzophenone.

[0122] The reaction temperature is 30°C, and the reaction time is 8 h.

[0123] The mass concentration of the Na2CO3 aqueous solution is 5%.

[0124] Comparative Example 2

[0125] A preparation method of high-antibacterial wear-resistant non-woven fabric, the operation steps of which are:

[0126] S1: add 0.05 g initiator, 200 g anhydrous ethanol, 30 g washed cellulose non-woven fabric and 0.05 g auxiliary agent in a mixer and mix by stirring;

[0127] S2: add 1 g acrylic acid-based nano titanium dioxide, 0.03 g methacryl cage polysilsesquioxane CAS160185-24-0 and 0.1 g vinyl guanamine, and mix by stirring and heating for reaction;

[0128] S3: after the reaction is completed, first wash and filter with ethanol, then wash and filter with deionized water, and dry to obtain the high-antibacterial wear-resistant non-woven fabric.

[0129] The initiator is potassium persulfate.

[0130] The auxiliary agent is HNO3.

[0131] The reaction temperature is 60 DEG C, and the reaction time is 3 h.

[0132] The preparation method of the acrylic acid-based nano titanium dioxide is:

[0133] Add 0.5 g acrylic acid-based silane, 200 g water, 30 g nano titanium dioxide in a mixer, mix by stirring at 60 DEG C for 0.5 h, filter and dry.

[0134] The acrylic acid-based silane is selected from 1-methyl-2-(trimethoxysilyl)ethyl methacrylate (CAS number: 51749-70-3).

[0135] The preparation method of the washed cellulose non-woven fabric is:

[0136] Soak the cellulose non-woven fabric in acetone for 2 h, ultrasonic for 20 min, and dry at 90 DEG C to obtain the washed cellulose non-woven fabric.

[0137] Comparative example 3

[0138] A preparation method of high-antibacterial wear-resistant non-woven fabric, the operation steps of which are:

[0139] S1: add 0.05 g initiator, 200 g anhydrous ethanol, 30 g washed cellulose non-woven fabric and 0.05 g auxiliary agent in a mixer and mix by stirring;

[0140] S2: add 0.004 g 4-methacrylamide benzophenone, 1 g acrylic acid-based nano titanium dioxide and 0.1 g vinyl guanamine, and mix by stirring and heating for reaction;

[0141] S3: After the reaction, first wash and filter with ethanol, then wash and filter with deionized water, dry, and obtain the high-antibacterial wear-resistant non-woven fabric.

[0142] The initiator is potassium persulfate.

[0143] The auxiliary agent is HNO3.

[0144] The reaction temperature is 60 DEG C, and the reaction time is 3h.

[0145] The preparation method of the propylene-based nanometer titanium dioxide is as follows:

[0146] In a mixer, 0.5g of propylene-based silane, 200g of water, and 30g of nanometer titanium dioxide are mixed at 60 DEG C for 0.5h under stirring; then filter and dry.

[0147] The propylene-based silane is selected from 1-methyl-2-(trimethoxysilyl)ethyl methacrylate (CAS number: 51749-70-3).

[0148] The preparation method of the washed cellulose non-woven fabric is as follows:

[0149] The cellulose non-woven fabric is soaked in acetone for 2h, ultrasonically treated for 20min, and dried at 90 DEG C to obtain the washed cellulose non-woven fabric.

[0150] The preparation method of the 4-methyl acrylamide benzophenone is as follows:

[0151] S1: In a reactor, 5g of 4-aminobenzophenone, 5g of triethylamine, and 22g of N,N-dimethylformamide are added;

[0152] S2: 5g of methacryloyl chloride is dissolved in 8g of N,N-dimethylformamide, and then slowly added into the reactor; after the reaction, pour into 200g of cold water, fully stir, and then filter;

[0153] S3: The filter cake is washed with Na2CO3 solution and deionized water respectively, dried at 50 DEG C for 30h, recrystallized, and dried to obtain 4-methyl acrylamide benzophenone.

[0154] The reaction temperature is 30 DEG C, and the reaction time is 8h.

[0155] The mass concentration of the Na2CO3 aqueous solution is 5%.

[0156] Evaluation of examples

[0157] 1. The samples prepared in the examples and comparative examples of the application are tested for antibacterial performance by using the fabric oscillation method, and the antibacterial rate calculation method is as follows:

[0158]

[0159] In the formula: R-antibacterial rate (%); B-average number of recovered bacteria (CFU / mL) of the control sample; C-average number of recovered bacteria (CFU / mL) of the modified sample.

[0160] 2, The sample prepared by the embodiment and the comparative example of the present application is tested for the pilling resistance of the non-woven fabric by the GB / T4802.2 textile fabric pilling test, and the Martin Dale method.

[0161] The results of the antibacterial test and the pilling grade test of the above embodiment and the comparative example are shown in the following table:

[0162] Antibacterial rate / % Level of fuzz Example 1 99.53 Level 1 Example 2 99.66 Level 1 Example 3 99.99 Level 1 Example 4 99.87 Level 1 Comparative Example 1 85.23 Level 3 Comparative Example 2 88.14 Level 2 Comparative Example 3 90.96 Level 2

[0163] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A method for preparing a highly antibacterial and wear-resistant nonwoven fabric, comprising the following steps: S1: According to the mass fractions, add 0.05-0.5 parts of initiator, 200-260 parts of anhydrous ethanol, 30-45 parts of washed cellulose nonwoven fabric, and 0.05-0.3 parts of additives to the mixer, and stir to mix. S2: Add 0.004-0.01 parts of 4-methacrylamide benzophenone, 1-4 parts of propylene-based nano-titanium dioxide, 0.03-0.3 parts of methacrylamide-cage-shaped polysilsesquioxane, and 0.1-0.8 parts of vinylguanidine, stir and heat to react; S3: After the reaction is complete, first wash and filter with ethanol, then wash and filter with deionized water, and dry to obtain high antibacterial and wear-resistant nonwoven fabric. The preparation method of the propylene-based nano-titanium dioxide is as follows: Add 0.5-2 parts by weight of propylene silane, 200-260 parts by weight of water, and 30-40 parts by weight of nano-titanium dioxide to a mixer and stir at 60-70°C for 0.5-2 hours; then filter and dry. The preparation method of the 4-methylacrylamide benzophenone is as follows: A1: Add 5-10 parts by weight of 4-aminobenzophenone, 5-10 parts by weight of triethylamine, and 22-40 parts by weight of N,N-dimethylformamide to the reactor. A2: Weigh 5-10 parts of methacryloyl chloride and dissolve it in 8-16 parts of N,N-dimethylformamide. Then slowly add it dropwise to the reactor. After the reaction is complete, pour it into 200-300 parts of cold water, stir thoroughly, and then filter. A3: The filter cake was washed with Na2CO3 solution and deionized water, dried at 50-65℃ for 30-40h, recrystallized, and dried to obtain 4-methylacrylamide benzophenone. The propylene silane is selected from 1-methyl-2-(trimethoxysilyl)ethyl methacrylate, propoxytriacetoxy methacrylate, and 2-hydroxy-3-[3-(trimethoxysilyl)propoxy]propyl methacrylate.

2. The method for preparing a high antibacterial and wear-resistant nonwoven fabric according to claim 1, characterized in that: The initiator is potassium persulfate.

3. The method for preparing a high antibacterial and wear-resistant nonwoven fabric according to claim 1, characterized in that: The auxiliary agent is HNO3.

4. The method for preparing a high antibacterial and wear-resistant nonwoven fabric according to claim 1, characterized in that: The temperature of the reaction in step S2 is 60-80℃, and the reaction time is 3-6h.

5. The method for preparing a high antibacterial and wear-resistant nonwoven fabric according to claim 1, characterized in that: The washing operation is as follows: The cellulose nonwoven fabric is soaked in acetone for 2-4 hours, sonicated for 20-40 minutes, and dried at 90-105℃ to obtain the cleaned cellulose nonwoven fabric.

6. The method for preparing a high antibacterial and wear-resistant nonwoven fabric according to claim 1, characterized in that: The reaction temperature in the preparation of 4-methylacrylamide benzophenone is 30-50℃, and the reaction time is 8-14h.

7. The method for preparing a high antibacterial and wear-resistant nonwoven fabric according to claim 1, characterized in that: The mass concentration of the Na2CO3 aqueous solution is 5-10%.

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