Preparation method of deodorizing anion graphene quantum dot cloud wool

Abstract

The application discloses a preparation method of deodorizing anion dopamine modified graphene quantum dot cloud wool, and relates to the technical field of cloud wool.The hydroxyl tyrosol 3-sodium sulfate salt and sebacic acid are used in polyester polymerization reaction to prepare elastic polyester particles, so that the deformation resistance of the cloud wool is improved; meanwhile, the sulfate radical has the effects of antistatic and antibacterial; finally, the polyester chip is used as a core layer, the elastic polyester particles, dopamine modified graphene quantum dots and modified antibacterial agent are used as a skin layer, and melt spinning is carried out to prepare the deodorizing anion dopamine modified graphene quantum dot cloud wool, so that the effects of antibacterial, deodorization and antistatic are realized.The modified antibacterial agent uses 1,6-dibromoisoquinoline-3-amine and N,N,N',N'-tetramethyl-2-butene-1,4-diamine to form a double quaternary ammonium salt structure, so that the antibacterial effect of the cloud wool is improved, the elastic polyester particles are assisted, and the deodorization effect is improved; finally, tea polyphenol is added in the melt spinning process, a three-dimensional structure is formed, the skin layer protection capability is improved, and the deformation resistance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cloud wool, and particularly to a preparation method of deodorizing negative ion graphene quantum dot cloud wool. BACKGROUND

[0002] With the progress of society and the affluence of people, people have higher and higher functional requirements for textiles, and functional cloud wool is more and more welcomed by people. Cloud wool is a kind of velvet fabric made of polyester cloud wool. The cloud wool has moisture absorption and air permeability, and is also soft and comfortable. However, the surface of ordinary cloud wool is easy to breed various bacteria, and the bacteria can contact the skin during use, and the secretion of the human body can provide nutrients for the growth and reproduction of the bacteria. When the cloud wool has the function of killing and inhibiting bacteria, the diseases caused by bacterial infection can be prevented to a certain extent. At the same time, the antibacterial property can protect the cloud wool from being eroded by bacteria during use, and can prolong the service life of the cloud wool to a certain extent. Antibacterial treatment of cloud wool has become an irresistible trend in the development of textiles in today's society.

[0003] Although the antibacterial cloud wool can reduce the reproduction of microorganisms and reduce the peculiar smell caused by microorganisms, however, in addition to bacteria and other microorganisms, there are also many gases in life that make us unhappy. For example, the oil smoke smell in the kitchen, the tobacco smell on the body of a person who smokes frequently, and harmful gases such as ammonia, benzene series and formaldehyde in indoor decoration and daily chemical products. These gas odor molecules are easy to adhere to clothes, and difficult to disappear in a short time, which is toxic to the human body. Therefore, it is also very necessary to make the cloud wool have the function of deodorization while being modified to have the antibacterial function. SUMMARY

[0004] The present application aims to provide a preparation method of deodorizing negative ion graphene quantum dot cloud wool to solve the problems in the prior art.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a preparation method of deodorizing negative ion graphene quantum dot cloud wool, comprising the following preparation steps:

[0006] (1) under the nitrogen atmosphere, 10-14 parts of sebacic acid, 8-12 parts of terephthalic acid, 10-16 parts of ethylene glycol and 0.002-0.004 parts of phosphorous acid are uniformly mixed, heated to 175-185℃, reacted for 1.5-3.5h under the stirring of 70rpm, 0.04-0.05 parts of tetrabutyl titanate is added, continuously heated to 210-220℃, the environmental pressure is maintained at 4-6kPa, reacted for 1-3h, reduced pressure and stirred at 70rpm to 120rpm, continuously reacted for 5-9h, cooled to room temperature, the solid is collected, washed with deionized water for 3 times, placed in a drying oven at 40-50℃ and dried for 10-16h to prepare an elastic polyester;

[0007] (2) 90-120 parts of the elastic polyester, 0.4-0.6 parts of the antioxidant, 3-5 parts of the lubricant are added into a mixing machine and mixed at 245-265°C for 25-45 min, and then put into a mixing extruder for extrusion, and then pelletized to obtain elastic polyester particles;

[0008] (3) 10-20 parts of N,N,N',N'-tetramethyl-2-butene-1,4-diamine, 5-9 parts of 1,6-dibromoisoquinoline-3-amine, and 120-230 parts of acetone are uniformly mixed, and then reacted at 50°C under stirring at 80 rpm for 4 h to obtain a reaction solution, and then purified to obtain a precursor powder;

[0009] (4) 78-96 parts of the elastic polyester particles, 8-10 parts of dopamine-modified graphene quantum dots, 12-16 parts of the precursor powder, 0.6-0.8 parts of tea polyphenol, 5-9 parts of sodium carbonate, and 2-4 parts of tourmaline negative ion powder are uniformly mixed as a skin layer, and 54-66 parts of polyester chips are used as a core layer, and then melted at different temperatures, and then jointly sprayed in a filamentous form at a nozzle pressure of 0.2-0.6 MPa, and then cooled, cut, and then deodorized negative ion dopamine-modified graphene quantum dot cloud fleece is obtained.

[0010] Further, the pressure after the decompression in step (1) is 400-500 Pa.

[0011] Further, the antioxidant in step (2) is any one of BHT, AO-1, and AO-3.

[0012] Further, the lubricant in step (2) is any one of silicone oil, paraffin, and stearic acid.

[0013] Further, the parameters of the mixing extruder in step (2) are as follows: a material head temperature of 225-235°C, a screw rotation speed of 220-250 r / min, an extrusion pressure of 25-35 MPa, and a shear rate of 240-270 s -1 .

[0014] Further, the purification step in step (3) is as follows: the reaction solution is concentrated at a vacuum degree of -0.06 MPa and at 30°C for 2-4 h, 15 times the volume of n-hexane is added to the reaction solution under stirring at 140 rpm, the upper suspension liquid is removed, the operation is repeated for 3 times, the bottom solid is collected, washed with n-hexane for 2 times, and then dried in an oven at 35-45°C for 10-16 h.

[0015] Further, the different temperatures in step (4) are as follows: a skin layer spinning screw temperature of 265-285°C and a core layer spinning screw temperature of 235-255°C.

[0016] Further, the type of the polyester chips in step (4) is any one of FG600, CB-608S, and FC510A.

[0017] Further, the cooling condition of step (4) is that the cooling air temperature is 16-20 DEG C, the air speed is 0.8-1.6 m / s, the air pressure is 550-750 Pa, and the cooling time is 15-25 min.

[0018] Further, the amount of dopamine modified graphene quantum dots in step (4) is prepared according to CN202180004656.9.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The present application is prepared by sebacic acid participating in the polymerization reaction of polyethylene terephthalate, forming an odd-even segment structure, weakening and destroying the crystallization of copolyester, reducing the intermolecular interaction, thereby improving the flexibility and tensile strength of the material, and further improving the anti-deformation ability of the cloud wool; finally, the polyester chip core layer, the elastic polyester particle, the dopamine modified graphene quantum dot and the modified antibacterial agent are used as the skin layer, and the deodorizing anion dopamine modified graphene quantum dot cloud wool is prepared by melt spinning, so as to realize the effects of antibacterial, deodorizing and antistatic.

[0021] The modified antibacterial agent is prepared from N,N,N',N'-tetramethyl-2-butene-1,4-diamine, 1,6-dibromoisoquinoline-3-amine and tea polyphenol; the bromine group of 1,6-dibromoisoquinoline-3-amine is combined with the nitrogen atom in N,N,N',N'-tetramethyl-2-butene-1,4-diamine to form a double quaternary ammonium salt structure, which can improve the antibacterial effect of the cloud wool, and the existence of the polar group amino and the alkenyl group can jointly enhance the bonding strength of the cloud wool and the antibacterial agent, indirectly improve the anti-deformation ability, and assist the elastic polyester particle to improve the deodorizing effect; finally, tea polyphenol is added in the melt spinning process, the hydroxyl group of tea polyphenol is combined with the modified antibacterial agent and the elastic polyester particle by hydrogen bonding to form a three-dimensional structure, thereby improving the protection ability of the skin layer, so that the cloud wool can disperse stress when subjected to external force, thereby improving its anti-deformation ability, and in addition, tea polyphenol can cooperate with the modified antibacterial agent to further strengthen the antibacterial effect of the cloud wool. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] In order to more clearly illustrate the method provided by the present application, the following examples are used to illustrate the method in detail. In the following examples, the test methods for each index of the deodorizing anion dopamine modified graphene quantum dot cloud wool are as follows:

[0024] Tensile strength: Take the same weight of the examples and the comparative examples, and perform tensile test according to GB / T 16603-2017, with a tensile rate of 10 mm / min.

[0025] Bacteriostatic rate: Take the same weight of the examples and the comparative examples, and make the same specification of composite fiber non-woven fabric (400 g / m 2 ) fabric through the same process (hot rolling process). Test according to GB / T 20944.3.

[0026] Deodorizing performance test method: Take the same weight of the examples and the comparative examples, and respectively spray into a closed container with a known odor (H2S, NH3) concentration C0. After 60 min of closed placement, the odor (H2S, NH3) concentration C1 in the closed instrument is tested by detection instrument, and the odor removal rate (%) = (C0-C1) / C0 is calculated, wherein C0 is the initial concentration of odor (H2S, NH3) in the closed container, and C1 is the concentration of odor (H2S, NH3) in the closed container after adding the antibacterial and deodorizing functional fiber.

[0027] Surface resistivity: Take the same weight of the examples and the comparative examples, and make the same specification of composite fiber non-woven fabric (400 g / m 2 ) fabric through the same process (hot rolling process). Test the surface resistivity by using an antistatic resistance tester in a test environment of 20℃ and 65% RH.

[0028] Example 1: (1) Under a nitrogen atmosphere, 10 parts of sebacic acid, 8 parts of terephthalic acid, 10 parts of ethylene glycol, and 0.002 parts of phosphorous acid are mixed uniformly. The temperature is raised to 175℃, and the reaction is carried out for 1.5 h under stirring at 70 rpm. 0.04 parts of tetrabutyl titanate is added, and the temperature is continuously raised to 210℃. The environmental pressure is maintained at 4 kPa, and the reaction is carried out for 1 h. The pressure is reduced to 400 Pa, and the stirring speed is increased from 70 rpm to 120 rpm. The reaction is continuously carried out for 5 h. The temperature is cooled to room temperature. The solid is collected, washed with deionized water for 3 times, and dried in an oven at 40℃ for 10 h to prepare an elastic polyester.

[0029] (2) 90 parts of the elastic polyester, 0.4 parts of BHT antioxidant, and 3 parts of silicone oil are added into a mixer and mixed at 245℃ for 25 min. The mixture is fed into a mixing extruder with a material head temperature of 225℃, a screw rotation speed of 220 r / min, and an extrusion pressure of 25 MPa. The shearing rate is 240 s -1 . The mixture is extruded, granulated, and the elastic polyester particles are prepared.

[0030] (3) 10 parts of N,N,N',N'-tetramethyl-2-butene-1,4-diamine, 5 parts of 1,6-dibromoisoquinoline-3-amine, 120 parts of acetone were uniformly mixed, and reacted at 50°C under stirring at 80 rpm for 4h to obtain a reaction solution. The reaction solution was concentrated at a vacuum degree of -0.06 MPa at 30°C for 2h. 15 times the volume of n-hexane was added to the reaction solution under stirring at 140 rpm, and the upper suspension liquid was removed. This was repeated 3 times, and the bottom solid was collected. The bottom solid was washed twice with n-hexane and dried in an oven at 35°C for 10h to obtain a precursor powder;

[0031] (4) The precursor powder, 0.6 parts of tea polyphenol, 5 parts of sodium carbonate, and 2 parts of tourmaline anion powder were uniformly mixed as a skin layer, and 54 parts of FG600 polyester chip was used as a core layer to perform melt spinning. The skin layer and the core layer were jointly jetted in a filamentous form at a nozzle pressure of 0.2 MPa. The filament was cooled at a cooling air temperature of 16°C, an air speed of 0.8 m / s, and an air pressure of 550 Pa for 15 min, and then cut to obtain a deodorizing anion dopamine-modified graphene quantum dot cloud wool.

[0032] Example 2: (1) 12 parts of sebacic acid, 10 parts of terephthalic acid, 13 parts of ethylene glycol, and 0.003 parts of phosphorous acid were uniformly mixed under a nitrogen atmosphere. The mixture was heated to 180°C and reacted under stirring at 70 rpm for 2.5h. 0.045 parts of tetrabutyl titanate was added, and the mixture was further heated to 215°C. The ambient pressure was maintained at 5 kPa, and the mixture was reacted for 2h. The pressure was reduced to 450 Pa, and the stirring speed was increased from 70 rpm to 120 rpm. The mixture was further reacted for 7h, and then cooled to room temperature. The solid was collected, washed with deionized water 3 times, and dried in an oven at 45°C for 13h to obtain an elastic polyester;

[0033] (2) 105 parts of the elastic polyester, 0.5 parts of AO-1 antioxidant, and 4 parts of paraffin wax were added to a mixer and mixed at 255°C for 35 min. The mixture was fed into a mixing extruder at a material head temperature of 230°C, a screw rotation speed of 235 r / min, an extrusion pressure of 30 MPa, and a shear rate of 255 s -1 , and then extruded and pelletized to obtain elastic polyester particles;

[0034] (3) 15 parts of N,N,N',N'-tetramethyl-2-butene-1,4-diamine, 7 parts of 1,6-dibromoisoquinoline-3-amine, and 175 parts of acetone were uniformly mixed. The mixture was reacted at 50°C under stirring at 80 rpm for 4h to obtain a reaction solution. The reaction solution was concentrated at a vacuum degree of -0.06 MPa at 30°C for 3h. 15 times the volume of n-hexane was added to the reaction solution under stirring at 140 rpm, and the upper suspension liquid was removed. This was repeated 3 times, and the bottom solid was collected. The bottom solid was washed twice with n-hexane and dried in an oven at 40°C for 13h to obtain a precursor powder;

[0035] (4) 87 parts of elastic polyester particles, 9 parts of dopamine modified graphene quantum dots, 14 parts of precursor powder, 0.7 parts of tea polyphenol, 7 parts of sodium carbonate, 3 parts of tourmaline anion powder are uniformly mixed as a skin layer, 60 parts of CB-608S polyester chip as a core layer, melt spinning is carried out, the nozzle pressure is 0.4 MPa, and the filament is sprayed out together, the cooling air temperature is 18 ℃, the air speed is 1.2 m / s, the air pressure is 650 Pa, and the cooling time is 20 min, and then cutting is performed to prepare deodorizing anion dopamine modified graphene quantum dot cloud wool.

[0036] Example 3: (1) 14 parts of sebacic acid, 12 parts of terephthalic acid, 16 parts of ethylene glycol, and 0.004 parts of phosphorous acid are uniformly mixed, heated to 185 ℃, and reacted for 3.5 h under stirring at 70 rpm, 0.05 parts of tetrabutyl titanate is added, and the temperature is continuously increased to 220 ℃, the environmental pressure is maintained at 6 kPa, and the reaction is continued for 3 h, the pressure is reduced to 500 Pa, and the stirring speed is increased from 70 rpm to 120 rpm, and the reaction is continued for 9 h, and then the temperature is cooled to room temperature, the solid is collected, washed with deionized water for 3 times, and placed in a 50 ℃ oven for drying for 16 h to prepare elastic polyester;

[0037] (2) 120 parts of elastic polyester, 00.6 parts of AO-3 antioxidant, and 5 parts of stearic acid are added into a mixer and mixed at 265 ℃ for 45 min, and then fed into a mixing extruder, the material head temperature is 235 ℃, the screw rotation speed is 250 r / min, the extrusion pressure is 35 MPa, the shearing rate is 270 s -1 , and the extrusion is carried out to prepare elastic polyester particles;

[0038] (3) 20 parts of N,N,N',N'-tetramethyl-2-butene-1,4-diamine, 9 parts of 1,6-dibromoisoquinoline-3-amine, and 230 parts of acetone are uniformly mixed, reacted for 4 h under stirring at 50 ℃ and 80 rpm, the reaction solution is concentrated under a vacuum degree of-0.06 MPa and at 30 ℃ for 4 h, 15 times the volume of n-hexane is added into the reaction solution under stirring at 140 rpm, the upper suspension is removed, the operation is repeated for 3 times, the bottom solid is collected, washed with n-hexane for 2 times, and placed in a 45 ℃ oven for drying for 16 h to prepare precursor powder;

[0039] (4) 96 parts of elastic polyester particles, 10 parts of dopamine modified graphene quantum dots, 16 parts of precursor powder, 0.8 parts of tea polyphenol, 9 parts of sodium carbonate, and 4 parts of tourmaline anion powder are uniformly mixed as a skin layer, 66 parts of FC510A polyester chip as a core layer, melt spinning is carried out, the nozzle pressure is 0.6 MPa, and the filament is sprayed out together, the cooling air temperature is 20 ℃, the air speed is 1.6 m / s, the air pressure is 750 Pa, and the cooling time is 25 min, and then cutting is performed to prepare deodorizing anion dopamine modified graphene quantum dot cloud wool.

[0040] Comparative Example 1: Comparative Example 1 differs from Example 2 in that no sebacic acid is added in step (1). The remaining steps are the same as in Example 2.

[0041] Comparative Example 2: Comparative Example 2 differs from Example 2 in that there is no step (3), and step (4) is changed to: 87 parts of elastic polyester particles, 9 parts of dopamine-modified graphene quantum dots, 14 parts of 1,6-dibromoisoquinoline-3-amine, 0.7 parts of tea polyphenol, 7 parts of sodium carbonate, and 3 parts of tourmaline negative ion powder are uniformly mixed to form a skin layer, and 60 parts of CB-608S polyester chips are used as a core layer to perform melt spinning, and the obtained materials are jointly sprayed in a filamentous manner at a nozzle pressure of 0.4 MPa, and are cooled at a cooling air temperature of 18°C, a wind speed of 1.2 m / s, and a wind pressure of 650 Pa for 20 min, and are cut off to obtain deodorizing negative ion dopamine-modified graphene quantum dot cloud wool. The remaining steps are the same as in Example 2.

[0042] Comparative Example 3: Comparative Example 3 differs from Example 2 in that there is no step (3), and step (4) is changed to: 87 parts of elastic polyester particles, 9 parts of dopamine-modified graphene quantum dots, 14 parts of N,N,N',N'-tetramethyl-2-butene-1,4-diamine, 0.7 parts of tea polyphenol, 7 parts of sodium carbonate, and 3 parts of tourmaline negative ion powder are uniformly mixed to form a skin layer, and 60 parts of CB-608S polyester chips are used as a core layer to perform melt spinning, and the obtained materials are jointly sprayed in a filamentous manner at a nozzle pressure of 0.4 MPa, and are cooled at a cooling air temperature of 18°C, a wind speed of 1.2 m / s, and a wind pressure of 650 Pa for 20 min, and are cut off to obtain deodorizing negative ion dopamine-modified graphene quantum dot cloud wool. The remaining steps are the same as in Example 2.

[0043] Comparative Example 4: Comparative Example 4 differs from Example 2 in that step (4) is different, and step (4) is changed to: 87 parts of elastic polyester particles, 9 parts of dopamine-modified graphene quantum dots, 14 parts of precursor powder, and 3 parts of tourmaline negative ion powder are uniformly mixed to form a skin layer, and 60 parts of CB-608S polyester chips are used as a core layer to perform melt spinning, and the obtained materials are jointly sprayed in a filamentous manner at a nozzle pressure of 0.4 MPa, and are cooled at a cooling air temperature of 18°C, a wind speed of 1.2 m / s, and a wind pressure of 650 Pa for 20 min, and are cut off to obtain deodorizing negative ion dopamine-modified graphene quantum dot cloud wool. The remaining steps are the same as in Example 2.

[0044] Effect Example

[0045] The performance analysis results of the deodorizing negative ion dopamine-modified graphene quantum dot cloud wool obtained by using Examples 1 to 3 and Comparative Examples 1 to 4 of the present application are shown in Table 1 below.

[0046] Table 1

[0047]

[0048] From the experimental data comparison of Example 1, 2, 3 and Comparative Example 2, it can be found that the bromine group is combined with the nitrogen atom in N,N,N',N'-tetramethyl-2-butene-1,4-diamine to form a double quaternary ammonium salt structure, which can improve the antibacterial effect of the cloud wool, at the same time, the existence of the alkenyl group can jointly enhance the binding strength of the cloud wool and the antibacterial agent, and improve the tensile strength; From the experimental data comparison of Example 1, 2, 3 and Comparative Example 3, it can be found that the use of 1,6-dibromoisoquinoline-3-amine combined with the nitrogen atom to form a double quaternary ammonium salt structure can improve the antibacterial effect of the cloud wool, at the same time, the existence of the polar group amino can jointly enhance the binding strength of the cloud wool and the antibacterial agent, and improve the tensile strength, and assist the elastic polyester particles to improve the deodorizing effect; From the experimental data comparison of Example 1, 2, 3 and Comparative Example 4, it can be found that in the melt spinning process, the addition of tea polyphenol, the hydroxyl group of which is combined with the modified antibacterial agent and the elastic polyester particles by hydrogen bond to form a three-dimensional structure, which improves the protection ability of the skin layer, so that the cloud wool can disperse stress when subjected to external force, thereby improving its tensile strength, in addition, tea polyphenol can cooperate with the modified antibacterial agent to strengthen the antibacterial effect of the cloud wool.

[0049] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalents of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims.

Claims

1. A method for preparing deodorizing anionic graphene quantum dot cloud wool, characterized in that, The preparation steps include: (1) 10-14 parts of sebacic acid, 8-12 parts of terephthalic acid, 10-16 parts of ethylene glycol, and 0.002-0.004 parts of phosphorous acid are uniformly mixed under a nitrogen atmosphere, heated to 175-185°C, and reacted for 1.5-3.5 hours under stirring at 70 rpm. 0.04-0.05 parts of tetrabutyl titanate is added, and the temperature is further increased to 210-220°C. The ambient pressure is maintained at 4-6 kPa, and the reaction is continued for 1-3 hours. The pressure is reduced, and the stirring speed is increased from 70 rpm to 120 rpm. The reaction is continued for 5-9 hours. The temperature is cooled to room temperature. The solid is collected, washed with deionized water for 3 times, and dried in an oven at 40-50°C for 10-16 hours to obtain an elastic polyester; (2) 90-120 parts of the elastic polyester, 0.4-0.6 parts of an antioxidant, and 3-5 parts of a lubricant are added to a mixer and mixed at 245-265°C for 25-45 minutes. The mixture is extruded into a mixing extruder, granulated, and an elastic polyester granule is obtained; (3) 10-20 parts of N,N,N',N'-tetramethyl-2-butene-1,4-diamine, 5-9 parts of 1,6-dibromoisoquinoline-3-amine, and 120-230 parts of acetone are uniformly mixed and reacted at 50°C under stirring at 80 rpm for 4 hours to obtain a reaction solution. The reaction solution is purified to obtain a precursor powder; (4) 78-96 parts of the elastic polyester granule, 8-10 parts of graphene quantum dots, 12-16 parts of the precursor powder, 0.6-0.8 parts of tea polyphenol, 5-9 parts of sodium carbonate, and 2-4 parts of tourmaline negative ion powder are uniformly mixed to obtain a skin layer. 54-66 parts of a polyester chip is used as a core layer. The skin layer and the core layer are jointly sprayed in a filamentous form at a nozzle pressure of 0.2-0.6 MPa at different temperatures. After cooling and cutting, a graphene quantum dot cloud fleece is obtained.

2. The preparation method of the deodorizing anionic graphene quantum dot cloud wool according to claim 1, characterized in that, In step (1), the pressure after the pressure reduction is 400-500 Pa.

3. The method for preparing deodorizing negative ion graphene quantum dot cloud-like material according to claim 1, characterized in that, In step (2), the antioxidant is any one of BHT, AO-1, and AO-3.

4. The method for preparing deodorizing negative ion graphene quantum dot cloud-like material according to claim 1, characterized in that, In step (2), the lubricant is any one of silicone oil, paraffin, and stearic acid.

5. The method for preparing deodorizing negative ion graphene quantum dot cloud-like material according to claim 1, characterized in that, The parameters of the mixing extruder in step (2) are: head temperature 225-235°C, screw rotation speed 220-250 r / min, extrusion pressure 25-35 MPa, and shear rate 240-270 s -1 .

6. The method for preparing deodorizing negative ion graphene quantum dot cloud-like material according to claim 1, characterized in that, In step (3), the purification step is as follows: the reaction solution is concentrated at a vacuum degree of -0.06 MPa and 30°C for 2-4 hours. 15 times the volume of n-hexane is added to the reaction solution under stirring at 140 rpm. The upper suspension is removed, and the operation is repeated for 3 times. The bottom solid is collected, washed with n-hexane for 2 times, and dried in an oven at 35-45°C for 10-16 hours.

7. The method for preparing deodorizing negative ion graphene quantum dot cloud-like material according to claim 1, characterized in that, In step (4), the different temperatures are as follows: the skin layer spinning screw temperature is 265-285°C, and the core layer spinning screw temperature is 235-255°C.

8. The method for preparing deodorizing negative ion graphene quantum dot cloud-like material according to claim 1, characterized in that, In step (4), the type of the polyester chip is any one of FG600, CB-608S, and FC510A.

9. The method for preparing deodorizing negative ion graphene quantum dot cloud-like material according to claim 1, characterized in that, In step (4), the cooling conditions are as follows: the cooling air temperature is 16-20°C, the air speed is 0.8-1.6 m / s, the air pressure is 550-750 Pa, and the cooling time is 15-25 minutes.

10. The method for preparing deodorizing negative ion graphene quantum dot cloud-like material according to claim 1, characterized in that, In step (4), the graphene quantum dots are specifically dopamine-modified graphene quantum dots.

11. The deodorizing anionic graphene quantum dot down powder prepared by the method according to any one of claims 1-10, wherein the down powder is prepared by using the sheath layer and the core layer as raw materials to melt and spin together.

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