An antibacterial and comfortable graphene fabric and its preparation method

Abstract

This invention relates to the field of fabric production technology, specifically to an antibacterial and comfortable graphene fabric and its preparation method. The graphene fabric is made of the following fiber materials in parts by weight: 30-45 parts functional graphene fiber, 13-20 parts cotton fiber, 15-23 parts ramie fiber, and 7-10 parts silk fiber. The fabric prepared by this invention not only has good antistatic properties but also good antibacterial properties. Furthermore, since functional graphene fiber, cotton fiber, ramie fiber, and silk fiber are used as raw materials in this application, the tactile feel and comfort of the prepared graphene fabric are effectively guaranteed.

Description

Technical Field

[0001] This invention relates to the field of fabric production technology, specifically to an antibacterial and comfortable graphene fabric and its preparation method. Background Technology

[0002] Fabric is the material used to make clothing. As one of the three essential elements of clothing, fabric not only interprets the style and characteristics of clothing, but also directly influences the color and shape of the garment. In the vast world of clothing, fabrics are diverse and constantly evolving. However, generally speaking, high-quality, high-end fabrics mostly possess characteristics such as comfortable wear, breathability and sweat absorption, good drape, elegant appearance, and soft touch.

[0003] Currently, most commercially available fabrics are made of chemical fibers. These fabrics are prone to moisture evaporation and static electricity generation, especially in dry seasons. Static electricity can cause antistatic fabrics to pill, attract dust and dirt, and cause a tingling sensation against the skin, thus affecting wearing comfort. Furthermore, few commercially available fabrics combine antibacterial and antistatic properties, which also impacts their overall quality.

[0004] Based on this, the present invention provides an antibacterial and comfortable graphene fabric and its preparation method to solve this technical problem. Summary of the Invention

[0005] The purpose of this invention is to provide an antibacterial and comfortable graphene fabric and its preparation method. The fabric prepared by this invention not only has good antistatic properties, but also good antibacterial properties. In addition, since functional graphene fibers, cotton fibers, ramie fibers and silk fibers are used as raw materials in this application, the tactile feel and comfort of the prepared graphene fabric are effectively guaranteed.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An antibacterial and comfortable graphene fabric, wherein the graphene fabric is made of the following fiber materials in parts by weight: 30-45 parts functional graphene fiber, 13-20 parts cotton fiber, 15-23 parts ramie fiber and 7-10 parts silk fiber.

[0008] Furthermore, the preparation method of the functional graphene fiber includes the following steps:

[0009] I. The modified graphene fibers were added to ethylene glycol at a solid-liquid ratio of 0.015–0.035 g / mL. After ultrasonic dispersion for 10–20 min, ammonia water with a volume of 3–5% of ethylene glycol was added. After mixing and stirring evenly, the resulting first mixed phase was transferred to a high-pressure reaction device and reacted at 170–180 °C for 7–12 h. After the reaction was completed, the resulting product components were naturally cooled to room temperature, and then filtered, washed, and dried at -40 to -36 °C to obtain the modified graphene fibers.

[0010] II. The modified graphene fibers are impregnated in a 1M hydrochloric acid solution at a solid-liquid ratio of 0.002–0.006 g / mL. Then, under ice bath conditions, 0.25–0.32% (by volume) of aminobenzene is added to the solution while stirring. After mixing and stirring evenly, a reaction promoter with a mass of 1.2–1.5 times that of the modified graphene fibers is added to the resulting second mixed phase. The reaction is continued to be stirred for 8–15 hours. After the reaction is completed, the resulting product components are filtered, washed, and dried at a temperature of -39 to -35°C. The final product is the functional graphene fiber.

[0011] Furthermore, the preparation method of the primary modified graphene fiber includes the following steps: DMF and pretreated graphene fiber are ultrasonically mixed at a weight ratio of 1:0.7 to 1.2 for 20 to 40 minutes. Then, polyethylene glycol 2000 with a mass of 1.5 to 2.5 times its weight is added to the resulting mixture. After ultrasonic dispersion for 10 to 20 minutes, N,N'-dicyclohexylcarboimide and N,N-dimethyl-4-pyridinium amine with a mass of 80 to 85% of the pretreated graphene fiber are added. After ultrasonic mixing for 20 to 30 minutes, the mixture is kept at 55 to 65°C for 8 to 12 hours. After the reaction is completed, the resulting reaction product is filtered and washed with deionized water 2 to 3 times, and then dried to obtain the primary modified graphene fiber product.

[0012] Furthermore, the preparation method of the pretreated graphene fiber includes the following steps: graphene oxide fibers are added to a mixed sample solution at a solid-liquid ratio of 0.005–0.015 g / mL and ultrasonically dispersed for 1–2 h. Then, hydroxymethyl-5,5-dimethylimidazolium-2,4-dione and N,N'-dicyclohexylcarboimide at a mass of 1.5–3.2% of DMF aqueous solution are added. After mixing and stirring evenly, the mixture is kept at 60–75°C and stirred for 20–48 h. After the reaction is complete, the reaction product is centrifuged, washed with water, washed with ethanol, and dried sequentially. Then, the obtained solid product is ultrasonically dispersed in sodium hypochlorite aqueous solution at a solid-liquid ratio of 0.03–0.08 g / mL and stirred for 5–8 h at 30–45°C. After the reaction is complete, the reaction product is washed with water and dried sequentially. The final product is the pretreated graphene fiber.

[0013] Furthermore, the mixed sample solution is prepared by mixing a 70-85% DMF aqueous solution with 5-8% dodecyltrimethylammonium chloride by mass.

[0014] Furthermore, the preparation method of the graphene fiber includes the following steps: adding 3-6% by mass of chloroacetic acid to an aqueous dispersion of graphene oxide with a concentration of 0.02-0.06 g / mL, mixing and stirring evenly, raising the temperature of the resulting mixture to 55-65°C, and maintaining the temperature at this temperature for 3-5 hours; after the reaction is complete, cooling the resulting product components to room temperature, and then filtering, washing and drying them; uniformly dispersing the obtained solid material in DMF at a solid-liquid ratio of 0.001-0.002 g / mL, and processing the obtained spinning solution through a wet spinning process to produce the finished graphene fiber.

[0015] Furthermore, the reaction promoter is selected from either potassium persulfate or ammonium persulfate.

[0016] A method for preparing an antibacterial and comfortable graphene fabric includes the following steps:

[0017] Step 1: Accurately weigh each fiber raw material required to prepare antibacterial and comfortable graphene fabric, and then knit it using a textile machine. After the weaving is completed, store the resulting graphene base fabric for later use.

[0018] Step 2: Immerse the graphene base fabric obtained in Step 1 in an antibacterial finishing agent at a temperature of 55-65℃ and treat it with a bath ratio of 1:18-30 for 25-40 hours.

[0019] Step 3: Take out the graphene base fabric obtained after the impregnation treatment, rinse it with clean water, and then dry and shape it. The final product is the antibacterial and comfortable graphene fabric.

[0020] Furthermore, the antibacterial finishing agent is composed of the following raw materials in parts by weight: 25-40 parts of 5-chloro-2-(2,4-dichlorophenoxy)phenol, 4-12 parts of sodium oleoyl methyl taurate, 20-35 parts of polyhexamethylene biguanide hydrochloride, and 6-10 parts of octylphenol polyoxyethylene ether.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] This invention uses prepared graphene fibers as raw materials and ultrasonically disperses them in a mixed sample solution containing dodecyltrimethylammonium chloride. This allows the dodecyltrimethylammonium chloride to be uniformly adsorbed onto the surface of the graphene fibers. Then, under the action of N,N'-dicyclohexylcarboimide, it undergoes a grafting reaction with hydroxymethyl-5,5-dimethylimidazolium-2,4-dione, forming a three-dimensional network structure on the surface of the graphene fibers. This effectively encapsulates the dodecyltrimethylammonium chloride adsorbed on the graphene fiber surface. Ultimately, the synergistic effect of dodecyltrimethylammonium chloride and hydroxymethyl-5,5-dimethylimidazolium-2,4-dione effectively ensures the antibacterial properties of the prepared pretreated graphene fibers.

[0023] Pretreated graphene fibers were mixed with DMF, and then polyethylene glycol, N,N'-dicyclohexylcarboimide and N,N-dimethyl-4-pyridinium amine were added. This allowed the -OH groups on the polyethylene glycol molecules to react chemically with the oxygen-containing functional groups on the pretreated graphene fibers. The resulting primary modified graphene fibers not only showed significant improvements in touch and wearing comfort, but also effectively enhanced their antistatic properties.

[0024] The initial modified graphene fibers were further modified to prepare modified graphene fibers. These modified graphene fibers then underwent a chemical reaction with aminobenzene under the action of a reaction accelerator. Ultimately, the aminobenzene was linked to the modified graphene fibers through strong chemical bonds, thus preparing functional graphene fibers. The prepared functional graphene fibers not only exhibited further improved antistatic properties but also possessed good antibacterial properties. Furthermore, since this application uses functional graphene fibers, cotton fibers, ramie fibers, and silk fibers as raw materials, the tactile feel and comfort of the prepared graphene fabric are effectively guaranteed. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1

[0027] An antibacterial and comfortable graphene fabric is made of the following fiber materials in parts by weight: 30 parts functional graphene fiber, 13 parts cotton fiber, 15 parts ramie fiber and 7 parts silk fiber.

[0028] The preparation method of functional graphene fibers includes the following steps:

[0029] I. The modified graphene fibers were added to ethylene glycol at a solid-liquid ratio of 0.015 g / mL. After ultrasonic dispersion for 10 min, ammonia water with a volume of 3% of ethylene glycol was added. After mixing and stirring evenly, the resulting first mixed phase was transferred to a high-pressure reaction device and kept at 170°C for 7 h. After the reaction was completed, the resulting product components were naturally cooled to room temperature, and then filtered, washed and dried at -40°C to obtain modified graphene fibers.

[0030] II. The modified graphene fibers were impregnated in a 1M hydrochloric acid solution at a solid-liquid ratio of 0.002 g / mL. Then, under ice bath conditions, 0.25% (by volume) of aminobenzene was added to the solution while stirring. After mixing and stirring evenly, potassium persulfate with a mass of 1.2 times that of the modified graphene fibers was added to the resulting second mixed phase. The reaction was continued for 8 hours with stirring. After the reaction was completed, the resulting product components were filtered, washed, and dried at -39°C. The final product was the functional graphene fiber.

[0031] The preparation method of primary modified graphene fiber includes the following steps: DMF and pretreated graphene fiber are ultrasonically mixed at a weight ratio of 1:0.7 for 20 min. Then, polyethylene glycol 2000 with a mass of 1.5 times its weight is added to the resulting mixture. After ultrasonic dispersion for 10 min, N,N'-dicyclohexylcarboimide and N,N-dimethyl-4-pyridinium amine with a mass of 80% of the pretreated graphene fiber are added separately. After ultrasonic mixing for 20 min, the mixture is kept at 55℃ for 8 h. After the reaction is completed, the resulting reaction product is filtered and washed twice with deionized water, and then dried to obtain the primary modified graphene fiber product.

[0032] The preparation method of pretreated graphene fibers includes the following steps: Graphene oxide fibers are added to a mixed sample solution at a solid-liquid ratio of 0.005 g / mL and ultrasonically dispersed for 1 h. Then, hydroxymethyl-5,5-dimethylimidazolium-2,4-dione (2 times the mass of graphene oxide fibers) and N,N'-dicyclohexylcarboimide (1.5% by mass of DMF aqueous solution) are added. After mixing and stirring evenly, the mixture is kept at 60°C and stirred for 20 h. After the reaction is complete, the reaction product is centrifuged, washed with water, washed with ethanol, and dried sequentially. Then, the obtained solid product is ultrasonically dispersed in sodium hypochlorite aqueous solution at a solid-liquid ratio of 0.03 g / mL and stirred at 30°C for 5 h. After the reaction is complete, the reaction product is washed with water and dried sequentially. The final product is the pretreated graphene fiber. The mixed sample solution is prepared by mixing a 70% DMF aqueous solution and a 5% dodecyltrimethylammonium chloride solution.

[0033] The preparation method of graphene fiber includes the following steps: 3% by mass of chloroacetic acid is added to an aqueous dispersion of graphene oxide with a concentration of 0.02 g / mL. After mixing and stirring evenly, the temperature of the resulting mixture is raised to 55°C and kept at this temperature for 3 hours. After the reaction is completed, the resulting product components are cooled to room temperature, and then filtered, washed and dried. The resulting solid material is uniformly dispersed in DMF at a solid-liquid ratio of 0.001 g / mL. The resulting spinning solution is processed by wet spinning process to produce graphene fiber finished product.

[0034] A method for preparing an antibacterial and comfortable graphene fabric includes the following steps:

[0035] Step 1: Accurately weigh each fiber raw material required to prepare antibacterial and comfortable graphene fabric, and then knit it using a textile machine. After the weaving is completed, store the resulting graphene base fabric for later use.

[0036] Step 2: Immerse the graphene base fabric obtained in Step 1 in an antibacterial finishing agent at 55°C and treat it with a bath ratio of 1:18 for 25 hours.

[0037] Step 3: Take out the graphene base fabric obtained after the impregnation treatment, rinse it with clean water, and then dry and shape it. The final product is the antibacterial and comfortable graphene fabric.

[0038] The antibacterial finishing agent is composed of the following raw materials in parts by weight: 25 parts 5-chloro-2-(2,4-dichlorophenoxy)phenol, 4 parts sodium oleoyl methyl taurate, 20 parts polyhexamethylene biguanide hydrochloride, and 6 parts octylphenol polyoxyethylene ether.

[0039] Example 2

[0040] The preparation method of the graphene fabric in this embodiment is basically the same as that in Example 1. The difference lies in the specific ratio of the fiber materials used in the graphene fabric in this embodiment, as well as the preparation methods of the functional graphene fibers, primary modified graphene fibers, pretreated graphene fibers, and the specific composition of the antibacterial finishing agent. The specific ratio of the fiber materials used in the graphene fabric, the preparation methods of the functional graphene fibers, primary modified graphene fibers, pretreated graphene fibers, and the specific composition of the antibacterial finishing agent in this embodiment are as follows:

[0041] The graphene fabric is made of the following fiber materials by weight: 40 parts functional graphene fiber, 16 parts cotton fiber, 20 parts ramie fiber and 8 parts silk fiber.

[0042] The preparation method of functional graphene fibers includes the following steps:

[0043] I. The modified graphene fibers were added to ethylene glycol at a solid-liquid ratio of 0.025 g / mL. After ultrasonic dispersion for 15 min, ammonia water with a volume of 4% of ethylene glycol was added. After mixing and stirring evenly, the resulting first mixed phase was transferred to a high-pressure reaction device and reacted at 175°C for 10 h. After the reaction was completed, the resulting product components were naturally cooled to room temperature, and then filtered, washed and dried at -38°C to obtain modified graphene fibers.

[0044] II. The modified graphene fibers were impregnated in a 1M hydrochloric acid solution at a solid-liquid ratio of 0.004 g / mL. Then, while stirring in an ice bath, 0.3% (by volume) of aminobenzene was added to the solution. After mixing and stirring until homogeneous, ammonium persulfate with a mass of 1.4 times that of the modified graphene fibers was added to the resulting second mixed phase. The reaction was continued for 12 hours. After the reaction was completed, the resulting product components were filtered, washed, and dried at -37°C. The final product was the functional graphene fiber.

[0045] The preparation method of primary modified graphene fiber includes the following steps: DMF and pretreated graphene fiber are ultrasonically mixed at a weight ratio of 1:1 for 30 min. Then, polyethylene glycol 2000 with a mass of 2.0 times its weight is added to the resulting mixture. After ultrasonic dispersion for 15 min, N,N'-dicyclohexylcarboimide and N,N-dimethyl-4-pyridinium amine with a mass of 83% of the pretreated graphene fiber are added separately. After ultrasonic mixing for 25 min, the mixture is kept at 60℃ for 10 h. After the reaction is completed, the resulting reaction product is filtered and washed three times with deionized water, and then dried to obtain the primary modified graphene fiber product.

[0046] The preparation method of pretreated graphene fibers includes the following steps: Graphene oxide fibers are added to a mixed sample solution at a solid-liquid ratio of 0.01 g / mL and ultrasonically dispersed for 2 h. Then, hydroxymethyl-5,5-dimethylimidazolium-2,4-dione (3.0 times the mass of graphene oxide fibers) and N,N'-dicyclohexylcarboimide (2.5% by mass of DMF aqueous solution) are added. After mixing and stirring evenly, the mixture is kept at 65°C and stirred for 35 h. After the reaction is complete, the reaction product is centrifuged, washed with water, washed with ethanol, and dried sequentially. Then, the obtained solid product is ultrasonically dispersed in sodium hypochlorite aqueous solution at a solid-liquid ratio of 0.05 g / mL and stirred at 40°C for 6 h. After the reaction is complete, the reaction product is washed with water and dried sequentially. The final product is the pretreated graphene fiber. The mixed sample solution is prepared by mixing an 80% DMF aqueous solution and 6% dodecyltrimethylammonium chloride by mass.

[0047] The preparation method of graphene fiber includes the following steps: 5% by mass of chloroacetic acid is added to an aqueous dispersion of graphene oxide with a concentration of 0.04 g / mL. After mixing and stirring evenly, the temperature of the resulting mixture is raised to 60°C and kept at this temperature for 4 hours. After the reaction is complete, the resulting product components are cooled to room temperature, and then filtered, washed, and dried. The resulting solid material is uniformly dispersed in DMF at a solid-liquid ratio of 0.0015 g / mL. The resulting spinning solution is processed by a wet spinning process to produce graphene fiber products.

[0048] The antibacterial finishing agent is composed of the following raw materials in parts by weight: 35 parts 5-chloro-2-(2,4-dichlorophenoxy)phenol, 8 parts sodium oleoyl methyl taurate, 30 parts polyhexamethylene biguanide hydrochloride, and 8 parts octylphenol polyoxyethylene ether.

[0049] Example 3

[0050] The preparation method of the graphene fabric in this embodiment is basically the same as that in Example 1. The difference lies in the specific ratio of the fiber materials used in the graphene fabric in this embodiment, as well as the preparation methods of the functional graphene fibers, primary modified graphene fibers, pretreated graphene fibers, and the specific composition of the antibacterial finishing agent. The specific ratio of the fiber materials used in the graphene fabric, the preparation methods of the functional graphene fibers, primary modified graphene fibers, pretreated graphene fibers, and the specific composition of the antibacterial finishing agent in this embodiment are as follows:

[0051] An antibacterial and comfortable graphene fabric is made of the following fiber materials in parts by weight: 45 parts functional graphene fiber, 20 parts cotton fiber, 23 parts ramie fiber and 10 parts silk fiber.

[0052] The preparation method of functional graphene fibers includes the following steps:

[0053] I. The modified graphene fibers were added to ethylene glycol at a solid-liquid ratio of 0.035 g / mL. After ultrasonic dispersion for 20 min, ammonia water with a volume of 5% of ethylene glycol was added. After mixing and stirring evenly, the resulting first mixed phase was transferred to a high-pressure reaction device and kept at 180°C for 12 h. After the reaction was completed, the resulting product components were naturally cooled to room temperature, and then filtered, washed and dried at -36°C to obtain modified graphene fibers.

[0054] II. The modified graphene fibers were impregnated in a 1M hydrochloric acid solution at a solid-liquid ratio of 0.006 g / mL. Then, under ice bath conditions, aminobenzene (0.32% by volume of the hydrochloric acid solution) was added while stirring. After mixing and stirring evenly, potassium persulfate (1.5 times the mass of the modified graphene fibers) was added to the resulting second mixed phase, and the reaction was continued to be stirred for 15 hours. After the reaction was completed, the resulting product components were filtered, washed, and dried at -35°C. The final product was the functional graphene fiber.

[0055] The preparation method of primary modified graphene fiber includes the following steps: DMF and pretreated graphene fiber are ultrasonically mixed at a weight ratio of 1:1.2 for 40 min. Then, polyethylene glycol 2000 with a mass of 2.5 times its weight is added to the resulting mixture. After ultrasonic dispersion for 20 min, N,N'-dicyclohexylcarboimide and N,N-dimethyl-4-pyridinium amine with a mass of 85% of the pretreated graphene fiber are added separately. After ultrasonic mixing for 30 min, the mixture is kept at 65°C for 12 h. After the reaction is completed, the resulting reaction product is filtered and washed three times with deionized water, and then dried to obtain the primary modified graphene fiber product.

[0056] The preparation method of pretreated graphene fibers includes the following steps: Graphene oxide fibers are added to a mixed sample solution at a solid-liquid ratio of 0.015 g / mL and ultrasonically dispersed for 2 h. Then, hydroxymethyl-5,5-dimethylimidazolium-2,4-dione (3.5 times the mass of graphene oxide fibers) and N,N'-dicyclohexylcarboimide (3.2% by mass of DMF aqueous solution) are added. After mixing and stirring evenly, the mixture is kept at 75°C and stirred for 48 h. After the reaction is complete, the reaction product is centrifuged, washed with water, washed with ethanol, and dried sequentially. Then, the obtained solid product is ultrasonically dispersed in sodium hypochlorite aqueous solution at a solid-liquid ratio of 0.08 g / mL and stirred at 45°C for 8 h. After the reaction is complete, the reaction product is washed with water and dried sequentially. The final product is the pretreated graphene fiber. The mixed sample solution is prepared by mixing an 85% DMF aqueous solution and 8% dodecyltrimethylammonium chloride.

[0057] The preparation method of graphene fiber includes the following steps: 6% by mass of chloroacetic acid is added to an aqueous dispersion of graphene oxide with a concentration of 0.06 g / mL. After mixing and stirring evenly, the temperature of the resulting mixture is raised to 65°C and kept at this temperature for 5 hours. After the reaction is complete, the resulting product components are cooled to room temperature, and then filtered, washed, and dried. The resulting solid material is uniformly dispersed in DMF at a solid-liquid ratio of 0.002 g / mL. The resulting spinning solution is processed by a wet spinning process to produce graphene fiber products.

[0058] The antibacterial finishing agent is composed of the following raw materials in parts by weight: 40 parts 5-chloro-2-(2,4-dichlorophenoxy)phenol, 12 parts sodium oleoyl methyl taurate, 35 parts polyhexamethylene biguanide hydrochloride, and 10 parts octylphenol polyoxyethylene ether.

[0059] The difference between Comparative Example 1 and Example 1 is that an equal amount of graphene fiber is used in this example instead of the functional graphene fiber in Example 1.

[0060] The difference between Comparative Example 2 and Example 1 is that an equal amount of primary modified graphene fiber is used in this example to replace the functional graphene fiber in Example 1.

[0061] Comparative Example 3 differs from Example 1 in that an equal amount of pretreated graphene fiber is used in this example instead of the functional graphene fiber in Example 1.

[0062] Comparative Example 4 differs from Example 1 in that the mixed sample solution in this example does not contain dodecyltrimethylammonium chloride, but is only a 70% DMF aqueous solution.

[0063] Performance testing: The relevant properties of the graphene fabric products provided in Examples 1-3 and Comparative Examples 1-4 were tested respectively, and the experimental data obtained are recorded in the table below:

[0064]

[0065]

[0066] Note: The perspiration and moisture absorption performance in the table are divided into 1 to 5 levels; level 1 is the worst and level 5 is the best.

[0067] By comparing and analyzing the relevant data in the table, it can be seen that the fabric prepared by this invention not only has good antistatic properties but also good antibacterial properties. Furthermore, since this application uses functional graphene fibers, cotton fibers, ramie fibers, and silk fibers as raw materials, the tactile feel and comfort of the prepared graphene fabric are effectively guaranteed. Therefore, it is evident that the antibacterial and comfortable graphene fabric and its preparation method provided by this invention have a broader market prospect and are more suitable for promotion.

[0068] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An antibacterial and comfortable graphene fabric, characterized in that, The graphene fabric is made of the following weight parts of fiber materials: 30-45 parts of functional graphene fibers, 13-20 parts of cotton fibers, 15-23 parts of ramie fibers and 7-10 parts of silk fibers; The preparation method of the functional graphene fibers comprises the following steps: I. The primary modified graphene fibers are put into ethylene glycol according to a solid-liquid ratio of 0.015-0.035 g / mL, and ultrasonic dispersion is carried out for 10-20 min, then ammonia water with a volume of 3-5% of the ethylene glycol is added, the mixture is uniformly stirred, the obtained first mixed phase is transferred into a high-pressure reaction device, and the reaction is carried out at 170-180 ℃ for 7-12 h; after the reaction is completed, the obtained product components are naturally cooled to room temperature, and then filtration, washing and drying treatment at a temperature of-40--36 ℃ are sequentially carried out, so that the modified graphene fibers are obtained; II. The modified graphene fibers are immersed in a hydrochloric acid solution with a concentration of 1 M according to a solid-liquid ratio of 0.002-0.006 g / mL, then ammonia benzene with a volume of 0.25-0.32% of the hydrochloric acid solution is added under ice bath condition while stirring, the second mixed phase is uniformly stirred, then a reaction promoter with a mass of 1.2-1.5 times of the modified graphene fibers is added, and the stirring reaction is carried out for 8-15 h; after the reaction is completed, the obtained product components are sequentially subjected to filtration, washing and drying treatment at a temperature of-39--35 ℃, and finally the functional graphene fibers are obtained; The preparation method of the primary modified graphene fibers comprises the following steps: DMF and pretreated graphene fibers are ultrasonically mixed according to a weight ratio of 1:0.7-1.2 for 20-40 min, then polyethylene glycol 2000 with a mass of 1.5-2.5 times of the obtained mixed components is added, ultrasonic dispersion is carried out for 10-20 min, then N,N'-dicyclohexyl carbodiimide with a mass of 80-85% of the pretreated graphene fibers and N,N-dimethyl-4-pyridine amine with a mass of 10-15% of the pretreated graphene fibers are added, ultrasonic mixing is carried out for 20-30 min, and then the reaction is carried out at 55-65 ℃ for 8-12 h; after the reaction is completed, the obtained reaction product is subjected to filtration and deionized water washing for 2-3 times, and then drying treatment is carried out, so that the primary modified graphene fibers are obtained. The preparation method of the pretreated graphene fiber comprises the following steps: graphene oxide fiber is put into a mixed sample solution with a solid-liquid ratio of 0.005-0.015 g / mL and ultrasonic dispersion is carried out for 1-2 h, then hydroxymethyl-5,5-dimethylimidazolidine-2,4-dione with a mass of 2-3.5 times that of the graphene oxide fiber and N,N'-dicyclohexyl carbodiimide with a mass of 1.5-3.2% of the DMF aqueous solution are added, the mixture is uniformly stirred, and then the reaction is carried out at a temperature of 60-75 °C for 20-48 h, after the reaction is completed, the reaction product is sequentially subjected to centrifugal separation, water washing, ethanol washing and drying treatment, then the obtained solid product is ultrasonic dispersed in a sodium hypochlorite aqueous solution with a solid-liquid ratio of 0.03-0.08 g / mL, and then the reaction is carried out at a temperature of 30-45 °C for 5-8 h, after the reaction is completed, the reaction product is sequentially subjected to water washing and drying treatment, and finally the pretreated graphene fiber product is obtained. The mixed sample solution is prepared by mixing a DMF aqueous solution with a concentration of 70-85% and dodecyltrimethylammonium chloride with a mass of 5-8% of the DMF aqueous solution.

2. The antibacterial comfortable graphene fabric according to claim 1, characterized in that, The preparation method of the graphene oxide fiber comprises the following steps: chloroacetic acid with a mass of 3-6% of the graphene oxide aqueous dispersion liquid with a concentration of 0.02-0.06 g / mL is added, the mixture is uniformly stirred, the temperature of the obtained mixture is raised to 55-65 °C, and then the reaction is carried out at the temperature for 3-5 h, after the reaction is completed, the obtained product is cooled to room temperature, and then the product is subjected to suction filtration, washing and drying treatment, and the obtained solid material is uniformly dispersed in DMF with a solid-liquid ratio of 0.001-0.002 g / mL, and the obtained spinning dope is treated by a wet spinning process to prepare the graphene oxide fiber product.

3. The antibacterial comfortable graphene fabric according to claim 1, characterized in that, The reaction promoter is selected from any one of potassium persulfate and ammonium persulfate.

4. The method according to any one of claims 1 to 3, wherein the method is characterized by, The method comprises the following steps: Step one, accurately weighing each fiber raw material required for preparing the graphene fabric with antibacterial and comfortable type, then knitting by a textile machine, and after knitting, the obtained graphene base fabric is stored and reserved; Step two, immersing the graphene base fabric obtained in step one in an antibacterial finishing agent with a temperature of 55-65 °C, and immersing for 25-40 h with a bath ratio of 1:18-30; Step three, taking out the graphene base fabric after immersing, and then washing with clean water, and then drying and setting the graphene base fabric, and finally the graphene fabric product with antibacterial and comfortable type is obtained.

5. The method of claim 4, wherein the graphene fabric is prepared by the steps of: (a) preparing a graphene solution by dispersing graphene in a solvent; (b) mixing the graphene solution with a fabric; (c) drying the fabric; and (d) washing the fabric. The antibacterial finishing agent is composed of the following raw materials in parts by weight: 25-40 parts of 5-chloro-2-(2,4-dichlorophenoxy)phenol, 4-12 parts of sodium oleoylmethyl taurate, 20-35 parts of polyhexamethylene biguanide hydrochloride and 6-10 parts of octylphenol polyoxyethylene ether.

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