An antibacterial material applied to linen fabric and a preparation method thereof

Abstract

The application relates to the technical field of antibacterial materials, and discloses an antibacterial material applied to flax fabric and a preparation method of the antibacterial material. The antibacterial material applied to flax fabric is obtained by compounding chitosan, quaternary ammonium salt modified cellulose and modified quaternary ammonium thiazole. The boron element, the sulfur element, the silicon element and the sodium sulfonate group in the quaternary ammonium salt modified cellulose and the modified quaternary ammonium thiazole all have good flame-retardant effects, and jointly form a flame-retardant system. The boron element is melted at high temperature to form a glass body covering layer covering the surface of a burning object, plays a role in isolating oxygen and heat, and achieves the effect of flame retardation. The silicon element can generate a glassy substance on the surface of a material when heated to isolate material transportation and energy transmission. The quaternary ammonium salt and a ferrocene group both have good antibacterial effects and synergistically resist bacteria. The antibacterial material provided by the application can significantly improve the quality of flax fabric.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of antibacterial materials, in particular to an antibacterial material applied to linen fabric and a preparation method thereof. BACKGROUND

[0002] The linen fabric is widely applied in the fields of medical treatment, catering, home furnishing and the like, in medical treatment, linen surgical gowns, masks and the like can effectively resist bacterial infection, in the catering industry, linen napkins, aprons and the like can reduce cross infection of bacteria, but in the use process, if a flame is encountered, the linen fabric is easy to burn, thereby affecting normal use, therefore, how to avoid this phenomenon is the key to solving the problem.

[0003] Patent CN116285012A discloses a cellulose-based antibacterial material and a preparation method and application thereof, the cellulose-based antibacterial material has significant antibacterial effect on various gram-negative and gram-positive bacteria, and the bacteriostatic effect is greatly improved, but the flame-retardant effect is not improved, therefore, the antibacterial and flame-retardant properties are further optimized. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the defects in the prior art, the application provides an antibacterial material applied to linen fabric and a preparation method thereof, which has good antibacterial and flame-retardant effects.

[0006] (II) Technical scheme

[0007] To achieve the above object, the application provides the following technical scheme: an antibacterial material applied to linen fabric, comprising the following components by weight: 5-8 parts by weight of chitosan, 1-4 parts by weight of quaternary ammonium salt modified boron-containing cellulose and 2-3 parts by weight of modified quaternary ammonium thiazole.

[0008] Preferably, the preparation method of the quaternary ammonium salt modified boron-containing cellulose is as follows:

[0009] Step one: 6-9 parts by weight of cellulose is added to a 2-4% sodium hydroxide aqueous solution, then 12-18 parts by weight of epoxy chloropropane and an ethanol solvent are added dropwise, and the mixture is stirred and reacted at 60-75 DEG C to obtain epoxy cellulose;

[0010] Step two: the epoxy cellulose and 2,4,6-tris (dimethylaminomethyl) phenol are added to a N,N-dimethylformamide solvent, the mixture is stirred and mixed, and a boron trifluoride ether catalyst is further added thereto, and the mixture is reacted at 70-90 DEG C for 5-7 hours, then the mixture is distilled under reduced pressure, and washed to obtain tertiary amine group cellulose;

[0011] Step three: add the tertiary amine group cellulose and 1,3-propane sulfolane into acetone solvent for dissolution, then drop 2-4% mass fraction of sodium hydroxide solution, react at 65-82℃ for 6-10h, after reaction, remove the solvent by reduced pressure concentration, recrystallize the crude product in ethanol to obtain the sodium sulfonate modified cellulose;

[0012] Step four: add ferrocene borate into toluene solvent, stir and disperse, then add the sodium sulfonate modified cellulose, react at 110-125℃ for 9-14h, after reaction, distill under reduced pressure, filter and dry to obtain the quaternary ammonium salt modified boron-containing cellulose.

[0013] Preferably, the reaction time in step one is 2-6h.

[0014] Preferably, the mass ratio of the epoxy cellulose, 2,4,6-tris(dimethylaminomethyl)phenol, boron trifluoride ether catalyst in step two is 1:1.26-1.45:0.01-0.02.

[0015] Preferably, the mass ratio of the tertiary amine group cellulose, 1,3-propane sulfolane in step three is 1:2.1-2.3.

[0016] Preferably, the mass ratio of the ferrocene borate, sodium sulfonate modified cellulose in step four is 0.6-0.8:1.

[0017] Preferably, the preparation method of the modified quaternary ammonium thiazole is:

[0018] S1. Add 10-14 parts by weight of 4-methyl-5-thiazole ethanol, 4-8 parts by weight of trimesoyl chloride, and 0.021-0.024 parts by weight of triethylamine catalyst into toluene solvent, stir uniformly, continue to add 0.021-0.024 parts by weight of triethylamine catalyst, stir at 70-80℃ for 10-15h, after reaction, remove the solvent by reduced pressure concentration, then wash the crude product with diethyl ether to obtain intermediate 1;

[0019] S2. Add 3-5 parts by weight of intermediate 1 and 6-10 parts by weight of 6-chloro-1-hexene into isopropyl alcohol solvent, heat to 75-85℃ to reflux for 10-20h, after reaction, remove the solvent by rotary evaporation, recrystallize in ethanol to obtain the alkenyl quaternary ammonium thiazole;

[0020] S3. Add 9-14 parts by weight of 1,1-bis(dimethylsilyl)ferrocene and 4-6 parts by weight of alkenyl quaternary ammonium thiazole, and 0.02-0.03 parts by weight of chloroplatinic acid catalyst into N,N-dimethylformamide solvent, react at 60-75℃ for 2-4h, after reaction, distill under reduced pressure, wash to obtain the modified quaternary ammonium thiazole.

[0021] Preferably, the preparation method of the antibacterial material applied to the linen fabric comprises the following steps: adding chitosan, quaternary ammonium salt modified cellulose and modified quaternary ammonium thiazole into a stirrer, stirring for 10-15 min, drying, and molding to obtain the antibacterial material applied to the linen fabric.

[0022] (III) Beneficial technical effects

[0023] The application adds chitosan, quaternary ammonium salt modified cellulose and modified quaternary ammonium thiazole into a stirrer, stirs, dries, and molds to obtain the antibacterial material applied to the linen fabric; the chitosan itself has good antibacterial and flame-retardant effects.

[0024] The boron element, the sulfur element, the silicon element and the sodium sulfonate group in the quaternary ammonium salt modified cellulose and the modified quaternary ammonium thiazole have good flame-retardant effects and jointly constitute a flame-retardant system; the quaternary ammonium salt and the ferrocene group have good antibacterial effects and synergistically antibacterial. The boron element melts at high temperature to form a glassy covering layer covering the surface of the burning material, thereby playing a role in isolating oxygen and heat and achieving the effect of flame retardation; the silicon element can generate a glassy substance on the surface of the material when heated to isolate material transportation and energy transmission. The sulfur element contained therein can accelerate the carbonization effect of the material when burning, promote the formation of a dense carbon layer on the surface of the material, and play a role in flame retardation; the sodium sulfonate can promote the release of carbon dioxide and water when burning, accelerate the carbonization rate of the polymer molecules, and promote the crosslinking of the polymer molecules, and these processes help to improve the flame retardance of the material.

[0025] The hydroxyl group in the 4-methyl-5-thiazole ethanol reacts with the acyl chloride group in the trimesoyl chloride to introduce a tertiary amine to obtain an intermediate 1, which continues to undergo quaternary amination reaction with 6-chloro-1-hexene to generate a quaternary ammonium salt group, and the introduced alkenyl group continues to undergo addition reaction with the silicon-hydrogen bond in 1,1-bis(dimethylsilyl)ferrocene (which also improves the substitution degree of ferrocene and quaternary ammonium salt, and further improves the antibacterial effect), thereby obtaining the modified quaternary ammonium thiazole; the epoxy cellulose and 2,4,6-tris(dimethylaminomethyl)phenol react to obtain a tertiary amine group cellulose, the epoxy group on the cellulose is more, which improves the substitution degree of the tertiary amine, and the quaternary ammonium salt obtained after the reaction of the tertiary amine and 1,3-propane sulfone lactone has good antibacterial effect. DETAILED DESCRIPTION

[0026] Example 1

[0027] Step one: 6 parts by weight of cellulose is added to a 2% mass fraction sodium hydroxide aqueous solution, then 12 parts by weight of epoxy chloropropane and ethanol solvent are added dropwise, and the reaction is stirred at 60℃ for 2h to obtain epoxy cellulose;

[0028] Step two: add epoxy cellulose and 2,4,6-tris(dimethylaminomethyl)phenol into N,N-dimethylformamide solvent, stir and mix, continue to add boron trifluoride ether catalyst, the mass ratio of epoxy cellulose, 2,4,6-tris(dimethylaminomethyl)phenol, boron trifluoride ether catalyst is 1:1.26:0.01, react at 70℃ for 5h, after the reaction is completed, distill under reduced pressure, wash, and obtain tertiary amine group cellulose;

[0029] Step three: add tertiary amine group cellulose and 1,3-propane sultone into acetone solvent for dissolution, the mass ratio of tertiary amine group cellulose and 1,3-propane sultone is 1:2.1-2.3, then drop 2% sodium hydroxide solution, react at 65℃ for 6h, after the reaction, remove the solvent by concentration under reduced pressure, recrystallize the crude product in ethanol, and obtain sodium sulfonate modified cellulose;

[0030] Step four: add ferrocene boronic acid into toluene solvent, stir and disperse, then add sodium sulfonate modified cellulose, the mass ratio of ferrocene boronic acid and sodium sulfonate modified cellulose is 0.6:1, react at 110℃ for 9h, after the reaction is completed, distill under reduced pressure, filter and dry, and obtain quaternary ammonium salt modified boron-containing cellulose;

[0031] Step five: add 10 parts by weight of 4-methyl-5-thiazole ethanol, 4 parts by weight of trimesoyl chloride, and 0.021 parts by weight of triethylamine catalyst into toluene solvent, stir uniformly, continue to stir and react at 70℃ for 10h, after the reaction, remove the solvent by concentration under reduced pressure, then wash the crude product with diethyl ether, and obtain intermediate 1;

[0032] Step six: add 3 parts by weight of intermediate 1 and 6 parts by weight of 6-chloro-1-hexene into isopropyl alcohol solvent, heat to 75℃ to reflux for 10h, after the reaction is completed, remove the solvent by rotary evaporation, recrystallize in ethanol, and obtain alkenyl quaternary ammonium thiazole;

[0033] Step seven: add 9 parts by weight of 1,1-bis(dimethylsilyl)ferrocene, 4 parts by weight of alkenyl quaternary ammonium thiazole, and 0.02 parts by weight of chloroplatinic acid catalyst into N,N-dimethylformamide solvent, react at 60℃ for 2h, after the reaction is completed, distill under reduced pressure, and wash to obtain modified quaternary ammonium thiazole;

[0034] Step eight: add 5 parts by weight of chitosan, 1 part by weight of quaternary ammonium salt modified boron-containing cellulose, and 2 parts by weight of modified quaternary ammonium thiazole into a stirrer, stir for 10min, dry, and mold into shape to obtain an antibacterial material applied to flax fabric.

[0035] Example 2

[0036] Step one: add 9 parts by weight of cellulose to a 4% by mass sodium hydroxide aqueous solution, then add 18 parts by weight of epichlorohydrin and an ethanol solvent dropwise, and stir and react at 75°C for 6 hours to obtain epoxide cellulose;

[0037] Step two: add epoxide cellulose and 2,4,6-tris(dimethylaminomethyl)phenol to an N,N-dimethylformamide solvent, stir and mix, and then add a boron trifluoride etherate catalyst to it, wherein the mass ratio of epoxide cellulose, 2,4,6-tris(dimethylaminomethyl)phenol, and boron trifluoride etherate catalyst is 1:1.45:0.02, and react at 90°C for 7 hours, and then distill under reduced pressure after the reaction is completed, and wash to obtain a tertiary amine group cellulose;

[0038] Step three: add the tertiary amine group cellulose and 1,3-propane sultone to an acetone solvent to dissolve, wherein the mass ratio of the tertiary amine group cellulose and 1,3-propane sultone is 1:2.3, and then add a 4% by mass sodium hydroxide solution dropwise, and react at 82°C for 10 hours, and then remove the solvent by concentration under reduced pressure after the reaction, and recrystallize the crude product in ethanol to obtain a sodium sulfonate-modified cellulose;

[0039] Step four: add ferrocene borate to a toluene solvent, stir and disperse, and then add the sodium sulfonate-modified cellulose to it, wherein the mass ratio of ferrocene borate and sodium sulfonate-modified cellulose is 0.8:1, and react at 125°C for 14 hours, and then distill under reduced pressure after the reaction is completed, filter, and dry to obtain a quaternary ammonium salt-modified boron-containing cellulose;

[0040] Step five: add 14 parts by weight of 4-methyl-5-thiazole ethanol, 8 parts by weight of trimesoyl chloride, and 0.024 parts by weight of triethylamine catalyst to a toluene solvent, stir uniformly, and then stir and react at 80°C for 15 hours, and then remove the solvent by concentration under reduced pressure after the reaction, and then wash the crude product with diethyl ether to obtain an intermediate 1;

[0041] Step six: add 5 parts by weight of the intermediate 1 and 10 parts by weight of 6-chloro-1-hexene to an isopropyl alcohol solvent, and then heat to 85°C to reflux and react for 20 hours, and then remove the solvent by rotary evaporation after the reaction is completed, and recrystallize in ethanol to obtain an alkenyl quaternary ammonium thiazole;

[0042] Step seven: add 14 parts by weight of 1,1-bis(dimethylsilyl)ferrocene and 6 parts by weight of the alkenyl quaternary ammonium thiazole, and 0.03 parts by weight of chloroplatinic acid catalyst to an N,N-dimethylformamide solvent, and then react at 5°C for 4 hours, and then distill under reduced pressure after the reaction is completed, and wash to obtain a modified quaternary ammonium thiazole;

[0043] Step eight: 8 parts by weight of chitosan, 4 parts by weight of quaternary ammonium salt modified boron-containing cellulose, 3 parts by weight of modified quaternary ammonium thiazole are added to the stirrer, stirred for 15 min, dried, and molded to obtain an antibacterial material applied to linen fabric.

[0044] Example 3

[0045] Step one: 7 parts by weight of cellulose is added to a 3% by mass sodium hydroxide aqueous solution, then 16 parts by weight of epichlorohydrin and an ethanol solvent are added dropwise, and the reaction is stirred at 65°C for 4h to obtain epoxide cellulose;

[0046] Step two: epoxide cellulose and 2,4,6-tris(dimethylaminomethyl)phenol are added to an N,N-dimethylformamide solvent, stirred and mixed, and then a boron trifluoride ether catalyst is added, wherein the mass ratio of epoxide cellulose, 2,4,6-tris(dimethylaminomethyl)phenol, and boron trifluoride ether catalyst is 1:1.35:0.01, and the reaction is carried out at 80°C for 6h, after which it is distilled under reduced pressure, washed, and then a tertiary amine group cellulose is obtained;

[0047] Step three: the tertiary amine group cellulose and 1,3-propane sulfolane are dissolved in an acetone solvent, wherein the mass ratio of the tertiary amine group cellulose and 1,3-propane sulfolane is 1:2.2, then a 3% by mass sodium hydroxide solution is added dropwise, and the reaction is carried out at 75°C for 8h, after which the solvent is removed by concentration under reduced pressure, and the crude product is recrystallized in ethanol to obtain a sodium sulfonate modified cellulose;

[0048] Step four: ferrocene boronic acid is added to a toluene solvent, stirred and dispersed, and then the sodium sulfonate modified cellulose is added, wherein the mass ratio of ferrocene boronic acid and sodium sulfonate modified cellulose is 0.7:1, and the reaction is carried out at 115°C for 12h, after which it is distilled under reduced pressure, filtered, and dried to obtain a quaternary ammonium salt modified boron-containing cellulose;

[0049] Step five: 13 parts by weight of 4-methyl-5-thiazole ethanol, 4-8 parts by weight of trimesoyl chloride, and 0.022 parts by weight of triethylamine catalyst are added to a toluene solvent, stirred uniformly, and then the reaction is carried out at 75°C for 13h, after which the solvent is removed by concentration under reduced pressure, and then the crude product is washed with diethyl ether to obtain an intermediate 1;

[0050] Step six: 4 parts by weight of intermediate 1 and 8 parts by weight of 6-chloro-1-hexene are added to an isopropyl alcohol solvent, heated to 80°C to reflux for 15h, after which the solvent is removed by rotary evaporation, and recrystallized in ethanol to obtain an alkenyl quaternary ammonium thiazole;

[0051] Step seven: 10 parts by weight of 1,1-bis(dimethylsilyl)ferrocene and 5 parts by weight of an alkenyl quaternary ammonium thiazole, 0.02 parts by weight of chloroplatinic acid catalyst were added to N,N-dimethylformamide solvent, and reacted at 75°C for 3h, after which distillation was performed under reduced pressure, and washing was performed to obtain modified quaternary ammonium thiazole;

[0052] Step eight: 6 parts by weight of chitosan, 3 parts by weight of quaternary ammonium salt modified boron-containing cellulose, and 2 parts by weight of modified quaternary ammonium thiazole were added to a stirrer, stirred for 12 min, dried, and molded to obtain an antibacterial material for linen fabric.

[0053] Example 4

[0054] Step one: 6 parts by weight of cellulose was added to a 2% by mass sodium hydroxide aqueous solution, and then 12 parts by weight of epichlorohydrin and ethanol solvent were added dropwise, and stirred and reacted at 60°C for 2h to obtain epoxide cellulose;

[0055] Step two: epoxide cellulose and 2,4,6-tris(dimethylaminomethyl)phenol were added to N,N-dimethylformamide solvent, stirred and mixed, and then trifluoroboron diethyl ether catalyst was added thereto, and the mass ratio of the epoxide cellulose, 2,4,6-tris(dimethylaminomethyl)phenol, and trifluoroboron diethyl ether catalyst was 1:1.26:0.01, and the reaction was performed at 70°C for 5h, after which distillation was performed under reduced pressure, and washing was performed to obtain tertiary amine group cellulose;

[0056] Step three: tertiary amine group cellulose and 1,3-propane sulfolane were dissolved in acetone solvent, and the mass ratio of the tertiary amine group cellulose and 1,3-propane sulfolane was 1:2.3, and then a 4% by mass sodium hydroxide solution was added dropwise, and the reaction was performed at 82°C for 10h, after which the solvent was removed by concentration under reduced pressure, and the crude product was recrystallized in ethanol to obtain sodium sulfonate modified cellulose;

[0057] Step four: ferrocene borate was added to toluene solvent, stirred and dispersed, and then sodium sulfonate modified cellulose was added thereto, and the mass ratio of the ferrocene borate and the sodium sulfonate modified cellulose was 0.8:1, and the reaction was performed at 125°C for 14h, after which distillation was performed under reduced pressure, and filtration and drying were performed to obtain quaternary ammonium salt modified boron-containing cellulose;

[0058] Step five: 13 parts by weight of 4-methyl-5-thiazole ethanol and 4-8 parts by weight of trimesoyl chloride were added to toluene solvent, stirred and mixed, and then 0.022 parts by weight of triethylamine catalyst was added, and the reaction was performed at 75°C for 13h, after which the solvent was removed by concentration under reduced pressure, and then the crude product was washed with diethyl ether to obtain intermediate 1;

[0059] Step six: 4 parts by weight of intermediate 1, 8 parts by weight of 6-chloro-1-hexene were added to isopropyl alcohol solvent, and the temperature was raised to 80°C to reflux for 15h, after which the solvent was removed by rotary evaporation, and recrystallized from ethanol to obtain an alkenyl quaternary ammonium thiazole;

[0060] Step seven: 10 parts by weight of 1,1-bis(dimethylsilyl)ferrocene and 5 parts by weight of alkenyl quaternary ammonium thiazole, 0.02 parts by weight of chloroplatinic acid catalyst were added to N,N-dimethylformamide solvent, and the reaction was carried out at 75°C for 3h, after which the product was obtained by distillation under reduced pressure, washing, to obtain a modified quaternary ammonium thiazole;

[0061] Step eight: 6 parts by weight of chitosan, 3 parts by weight of quaternary ammonium salt modified boron-containing cellulose, and 2 parts by weight of modified quaternary ammonium thiazole were added to a stirrer, stirred for 12 min, dried, and molded to obtain an antibacterial material for flax fabric.

[0062] Comparative Example 1

[0063] This comparative example is different from Example 4 in that no quaternary ammonium salt modified boron-containing cellulose is added.

[0064] Comparative Example 2

[0065] This comparative example is different from Example 4 in that no modified quaternary ammonium thiazole is added.

[0066] A staphylococcus aureus bacterial solution with a concentration of 2×10 8 CFU / mL was added to a sterilized culture dish, then solid agar medium was added to melt, and then cooled to 45°C, then poured into the culture dish, 20mL was poured into each 10cm inner diameter flat plate, then the antibacterial material (diameter 3cm, thickness 1mm) of the present application and the comparative example was placed on the medium flat plate, and cultured in a constant temperature incubator for 12h at a temperature of 37°C, and then the diameter of the inhibition zone was measured after culture. The test results are shown in Table 1.

[0067] Table 1: Antimicrobial test.

[0068] Item Diameter of inhibition zone (mm) Example 1 16.1 Example 2 16.7 Example 3 16.2 Example 4 15.9 Comparative Example 2 13.4 Comparative Example 3 12.5

[0069] As can be seen from Table 1, the diameter of the inhibition zone of the antibacterial material of the present application is 15.9-16.7mm, indicating that it has good antibacterial effect.

[0070] The limiting oxygen index of the material was tested using an oxygen index instrument, and the combustion grade of the material was tested using a horizontal and vertical combustion instrument.

[0071] Table 2: Flame retardancy test.

[0072] Item Limiting oxygen index (%) Combustion grade Example 1 29 V-0 Example 2 31 V-0 Example 3 30 V-0 Example 4 31 V-0 Comparative Example 1 22 V-1 Comparative Example 2 23 V-1

[0073] From Table 2, it can be seen that the flame-retardant effects of Examples 1-4 are better than those of Comparative Examples 1-2, indicating that the prepared antibacterial material has good flame-retardant effect.

[0074] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details of the application, and the application is not limited to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. An antibacterial material for use in linen fabrics, characterized in that, It includes the following components by weight: 5-8 parts by weight of chitosan, 1-4 parts by weight of quaternary ammonium salt modified boron-containing cellulose, and 2-3 parts by weight of modified quaternized thiazole; The method for preparing the quaternary ammonium salt modified boron-containing cellulose is as follows: Step 1: Add 6-9 parts by weight of cellulose to a 2-4% sodium hydroxide aqueous solution, then add 12-18 parts by weight of epichlorohydrin and ethanol solvent, and stir the reaction at 60-75℃ to obtain epoxy cellulose. Step 2: Add epoxy cellulose and 2,4,6-tris(dimethylaminomethyl)phenol to N,N-dimethylformamide solvent, stir and mix, continue to add boron trifluoride diethyl ether catalyst, react at 70-90℃ for 5-7 h, after which vacuum distillation and washing are performed to obtain tertiary amine cellulose; Step 3: Add tertiary amine cellulose and 1,3-propane sulfonyl lactone to acetone solvent for dissolution, then add sodium hydroxide solution with a mass fraction of 2-4% dropwise, react at 65-82℃ for 6-10h, concentrate under reduced pressure to remove solvent, and recrystallize the crude product in ethanol to obtain sodium sulfonate modified cellulose. Step 4: Add ferrocene boric acid to toluene solvent, stir and disperse, then add sodium sulfonate to modify cellulose, and react at 110-125℃ for 9-14 hours. After the reaction is completed, distill under reduced pressure, filter and dry to obtain quaternary ammonium salt modified boron-containing cellulose. The method for preparing the modified quaternized thiazole is as follows: S1. Add 10-14 parts by weight of 4-methyl-5-thiazolylethanol and 4-8 parts by weight of trimesoyl chloride to toluene solvent, stir until homogeneous, and then add 0.021-0.024 parts by weight of triethylamine catalyst. Stir the reaction at 70-80℃ for 10-15 h. After the reaction, concentrate under reduced pressure to remove the solvent, and then wash the crude product with diethyl ether to obtain intermediate 1. S2. Add 3-5 parts by weight of intermediate 1 and 6-10 parts by weight of 6-chloro-1-hexene to isopropanol solvent, heat to 75-85℃ and reflux for 10-20 h, remove the solvent by rotary evaporation after the reaction, recrystallize from ethanol to obtain alkenyl quaternized thiazole. S3. Add 9-14 parts by weight of 1,1-di(dimethylsilyl)iron and 4-6 parts by weight of alkenyl quaternized thiazole and 0.02-0.03 parts by weight of chloroplatinic acid catalyst to N,N-dimethylformamide solvent, react at 60-75℃ for 2-4 h, distill under reduced pressure after reaction, wash, and obtain modified quaternized thiazole.

2. The antibacterial material applied to linen fabric according to claim 1, characterized in that, The reaction time in step one is 2-6 hours.

3. The antibacterial material applied to linen fabric according to claim 1, characterized in that, In step two, the mass ratio of epoxy cellulose, 2,4,6-tris(dimethylaminomethyl)phenol, and boron trifluoride diethyl ether catalyst is 1:1.26-1.45:0.01-0.

02.

4. The antibacterial material applied to linen fabric according to claim 1, characterized in that, In step three, the mass ratio of tertiary amine cellulose to 1,3-propanesulfonyl lactone is 1:2.1-2.

3.

5. The antibacterial material applied to linen fabric according to claim 1, characterized in that, In step four, the mass ratio of ferrocene boric acid to sodium sulfonate-modified cellulose is 0.6-0.8:

1.

6. A method for preparing an antibacterial material for use in linen fabrics as described in any one of claims 1-5, characterized in that, The method for preparing the antibacterial material applied to linen fabric is as follows: chitosan, quaternary ammonium salt modified cellulose, and modified quaternized thiazole are added to a stirrer, stirred for 10-15 minutes, dried, and molded to obtain the antibacterial material applied to linen fabric.