Preparation method and application of smoked moxa

Abstract

The invention discloses a preparation method and application of moxa fumigation, and belongs to the technical field of moxa fumigation, the preparation method comprises the following steps: mixing folium artemisiae argyi, agastache rugosus and clove according to a ratio, crushing into fine velvet, uniformly mixing with blumea oil microcapsules, mould pressing, and cutting into sections to obtain a core material; the composite powder is pressed into a flame-retardant gasket with air holes; assembling the non-woven fabric adhesive tape, the ceramic cylinder, the flame-retardant gasket and the core material to obtain moxa fumigation; the foot moxibustion device is suitable for a user to independently perform foot moxibustion, is convenient to use, and solves the problem that the user without moxibustion experience is easy to scald in the operation process; graphene in the flame-retardant gasket is beneficial to increase of collected heat, so that the effect of fuming moxibustion is ensured; when the core material burns to the flame-retardant gasket, the high-temperature-resistant plastic plays a supporting role and prevents the flame-retardant gasket from being fused to cause scald, the magnesium hydroxide powder contributes to charring, and the expandable graphite powder can be heated to expand and contributes to blocking the air holes to prevent high heat from being transmitted to the skin through the air holes, and can also play a role in rapidly extinguishing the fire core of the core material.

Description

Technical Field

[0001] The invention belongs to the technical field of moxa fumigation, and specifically relates to a preparation method of moxa fumigation and application thereof. Background Art

[0002] Moxa fumigation, also known as moxibustion, is a form of TCM therapy, usually made of moxa leaves or moxa wool. In the process of moxa fumigation, the painful area should be massaged first to make the muscles in the corresponding area warm and the pores open. Then, the moxa stick should be used to fumigate the painful area five centimeters above the skin, with the painful area as the center, to remove the cold and wind. Fumigate different acupoints, and adjust the disordered physiological and biochemical functions of the human body by stimulating the activity of meridian qi, so as to achieve the purpose of preventing and curing diseases.

[0003] There are many acupuncture points on the soles of the feet. Moxibustion on the soles of the feet can coordinate qi and blood, promote blood circulation and improve sleep quality. The temperature of moxa sticks can reach 550-850℃. The method and temperature of moxibustion are difficult for ordinary people to grasp. For users without moxibustion experience, fumigation on the soles of the feet with moxa sticks is not only inconvenient, but also easy to get burned during the operation. Summary of the invention

[0004] One of the purposes of the present invention is to provide a method for preparing moxa fumigation, so as to prepare moxa fumigation that is easy to use and solve the problem of easy burns during moxibustion; the second purpose is to provide the application of the moxa fumigation in fumigation of soles of feet.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A method for preparing moxa fumigation comprises the following steps:

[0007] Step 1: The average molecular weight is 15×10 4 The polyvinyl alcohol powder and deionized water are stirred at 70-80°C for 15-30 minutes to obtain a polyvinyl alcohol solution; the polyvinyl alcohol solution, liquid paraffin and an emulsifier are added into a stirring kettle, and stirred at 600-800r / min for 20-30 minutes; 1,5-pentanediol is adjusted to a pH value of 2 with hydrochloric acid and added into the stirring kettle, and stirred at 60-70°C for 60-90 minutes; after cooling, the pH value is adjusted to 7 with a sodium hydroxide solution; centrifuged at 5000-6000r / min for 10-20 minutes; the precipitate is washed with anhydrous ethanol for 3-5 times; and vacuum dried at 40-60°C to obtain a microcapsule shell; the wormwood essential oil and the microcapsule shell are mixed in a mass ratio of 6:1, and then allowed to stand for 24 hours, filtered, and dried to obtain wormwood oil microcapsules.

[0008] Furthermore, the dosage ratio of polyvinyl alcohol to deionized water is 1 g: 20-24 mL.

[0009] Furthermore, the usage ratio of the polyvinyl alcohol solution, the liquid paraffin, the emulsifier and the 1,5-pentanediol is 20 mL: 10 mL: 0.1-0.12 g: 2 mL.

[0010] Furthermore, the emulsifier is Span 80 or Tween 20.

[0011] Step 2: Mix wormwood, patchouli and cloves in a mass ratio of 25-30:2-3:2-5, and then crush them into fine wool. Mix the fine wool and wormwood oil microcapsules evenly, then perform molding, cut into sections, and obtain core materials.

[0012] Furthermore, the usage ratio of fine wool and mugwort oil microcapsules is 20g:3-5g.

[0013] Step three: Grind the high temperature resistant plastic into a high temperature resistant plastic powder with a particle size of 100-200 μm; Grind the low density polyethylene plastic into a polyethylene plastic powder with a particle size of 50-100 μm; Mix the magnesium hydroxide powder, expandable graphite powder, graphene powder and a 50% ethanol aqueous solution by mass, and then ultrasonically disperse for 15-30 minutes, add the polyethylene plastic powder and the high temperature resistant plastic powder, and continue to ultrasonically disperse for 15-30 minutes, then stir for 3-5 hours at 65-70°C and 250-500r / min to obtain a slurry, vacuum dry the slurry at 40-60°C, and crush it to obtain a composite powder; Transfer the composite powder to a mold, and press it into a flame retardant gasket at 10-20MPa and 120-130°C, and the flame retardant gasket has pores.

[0014] Furthermore, the high temperature resistant plastic is one of polyetheretherketone plastic, polytetrafluoroethylene plastic, polyimide plastic and polyphenylene sulfide plastic.

[0015] Furthermore, the usage ratio of magnesium hydroxide powder, expandable graphite powder, graphene powder, ethanol aqueous solution, polyethylene plastic powder and high temperature resistant plastic powder is 20-30g: 10-15g: 20-40g: 750-1500mL: 15-20g: 30-45g.

[0016] Step 4: Assemble the non-woven fabric tape, ceramic tube, flame retardant gasket and core material to obtain moxa fumigant.

[0017] This moxa fumigation should be used for fumigation on the soles of the feet to avoid burns.

[0018] Beneficial effects of the present invention:

[0019] The moxa fumigation of the present invention is attached to the skin by a non-woven adhesive tape, and is suitable for users to perform foot fumigation alone. It is easy to use and solves the problem that users without moxibustion experience are easily scalded during operation. Patchouli and cloves are added to the core material, which helps to improve the smell of moxa fumigation; it also contains wormwood oil microcapsules, and the microcapsule shell is prepared by cross-sectional polymerization, and then the wormwood essential oil is wrapped, which helps to prevent the volatilization of the wormwood essential oil and increase the stability of the core material; the wormwood essential oil has the effects of antibacterial, antiviral and cold-dispelling and analgesic. With the combustion of the core material, the wormwood oil microcapsules decompose and release the wormwood essential oil, which helps to increase the use effect of the moxa fumigation.

[0020] The ceramic tube used in the present invention can fix the core material, and the material of the ceramic tube is ceramic with low thermal conductivity, so as to avoid burns during use. The flame retardant gasket is provided with pores, which are helpful for the wormwood essential oil to volatilize and contact the skin to exert its effect. The graphene in the flame retardant gasket helps to gather heat and increase. By adjusting the content, the temperature of the flame retardant gasket is maintained at about 50°C, which prevents the user from being scalded while ensuring the effect of fumigation. When the core material burns to the flame retardant gasket, the magnesium hydroxide and expandable graphite in the flame retardant gasket play a flame retardant role; the high temperature resistant plastic plays a supporting role to prevent the flame retardant gasket from melting and causing burns; the magnesium hydroxide powder helps to form carbon, and the expandable graphite powder can expand when heated, which helps to block the pores to prevent the high heat from being transferred to the skin through the pores, and can also play the role of quickly extinguishing the fire core of the core material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a structural schematic diagram of the moxa fumigation of the present invention.

[0023] In the figure: 1. non-woven tape; 2. ceramic tube; 3. core material; 4. flame retardant gasket; 21. air vent; 22. inner limit convex ring; 23. outer limit convex ring; 41. air hole. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1 This embodiment provides a moxa fumigation method, comprising the following implementation steps:

[0027] Step 1: Stir 10kg of polyvinyl alcohol powder with an average molecular weight of 15×104 and 200L of deionized water at 70°C for 15min to obtain a polyvinyl alcohol solution; add 200L of polyvinyl alcohol solution, 100L of liquid paraffin and 1kg of Span 80 into a stirring kettle, stir at 600r / min for 20min, adjust the pH value of 20L of 1,5-pentanediol to 2 with hydrochloric acid and add it into the stirring kettle, continue stirring at 60°C for 60min, adjust the pH value to 7 with sodium hydroxide solution after cooling, centrifuge at 5000r / min for 10min, wash the precipitate with anhydrous ethanol for 3 times, and vacuum dry at 40°C to obtain a microcapsule shell; mix 60kg of wormwood essential oil and 10kg of microcapsule shell, let it stand for 24h, filter and dry to obtain wormwood oil microcapsules.

[0028] Step 2: Mix 25 kg of mugwort, 2 kg of patchouli and 2 kg of cloves and grind them into fine wool. Mix 20 kg of fine wool and 3 kg of mugwort oil microcapsules evenly and fill them into a cylindrical mold and compact them. Demould and cut into sections to obtain core material 3.

[0029] Step 3: Grind the polyetheretherketone plastic into a high-temperature resistant plastic powder with a particle size of 100μm; grind the low-density polyethylene plastic into a polyethylene plastic powder with a particle size of 50μm; mix 20kg of magnesium hydroxide powder, 10kg of expandable graphite powder, 20kg of graphene powder and 750L of 50% ethanol aqueous solution by mass, and ultrasonically disperse them for 15 minutes, add 15kg of polyethylene plastic powder and 30kg of high-temperature resistant plastic powder, and continue to ultrasonically disperse them for 15 minutes, then stir for 3 hours at 65°C and 250r / min to obtain a slurry, vacuum dry the slurry at 40°C, and crush it to obtain a composite powder; transfer the composite powder to a mold, and press it into a flame-retardant gasket 4 at 10MPa and 120°C, and the flame-retardant gasket 4 is provided with a plurality of pores 41.

[0030] Step 4: A mounting hole is provided in the center of the non-woven tape 1, and an outer limiting convex ring 23 and an inner limiting convex ring 22 are provided at one end of the ceramic tube 2. The ceramic tube 2 is passed through the mounting hole in the center of the non-woven tape 1 so that the non-woven tape 1 sticks to the outer limiting convex ring 23 of the ceramic tube 2; the flame retardant gasket 4 is embedded in the ceramic tube 2, and the inner limiting convex ring 22 plays a limiting role. Then the core material 3 is inlaid and installed to obtain moxa fumigation, in which the inner diameter of the end of the ceramic tube 2 away from the inner limiting convex ring 22 is larger, and a breathable groove 21 is formed between the ceramic tube 2 and the core material 3 to facilitate the combustion of the core material 3.

[0031] Example 2

[0032] See also Figure 1 This embodiment provides a moxa fumigation method, comprising the following implementation steps:

[0033] Step 1: Stir 10 kg of polyvinyl alcohol powder with an average molecular weight of 15×104 and 220 L of deionized water at 75° C. for 20 min to obtain a polyvinyl alcohol solution; add 200 L of polyvinyl alcohol solution, 100 L of liquid paraffin and 1.1 kg of Span 80 into a stirring kettle, stir at 650 r / min for 25 min, adjust the pH value of 20 L of 1,5-pentanediol to 2 with hydrochloric acid and add it into the stirring kettle, continue stirring at 65° C. for 70 min, adjust the pH value to 7 with sodium hydroxide solution after cooling, centrifuge at 5500 r / min for 15 min, wash the precipitate with anhydrous ethanol for 4 times, and vacuum dry at 45° C. to obtain a microcapsule shell; mix 60 kg of wormwood essential oil and 10 kg of microcapsule shell, let stand for 24 h, filter, and dry to obtain wormwood oil microcapsules.

[0034] Step 2: Mix 28 kg of mugwort, 2.5 kg of patchouli and 3 kg of cloves and grind them into fine wool. Mix 20 kg of fine wool and 4 kg of mugwort oil microcapsules evenly and fill them into a cylindrical mold and compact them. Demould and cut into sections to obtain core material 3.

[0035] Step 3: Grind the polytetrafluoroethylene plastic into a high-temperature resistant plastic powder with a particle size of 140 μm; grind the low-density polyethylene plastic into a polyethylene plastic powder with a particle size of 60 μm; mix 25 kg of magnesium hydroxide powder, 12 kg of expandable graphite powder, 30 kg of graphene powder and 900 L of 50% ethanol aqueous solution, and ultrasonically disperse them for 20 minutes, add 18 kg of polyethylene plastic powder and 35 kg of high-temperature resistant plastic powder, and continue to ultrasonically disperse them for 20 minutes, then stir for 4 hours at 68°C and 350 r / min to obtain a slurry, vacuum dry the slurry at 45°C, and crush it to obtain a composite powder; transfer the composite powder to a mold, and press it into a flame retardant gasket 4 at 15 MPa and 125°C, and the flame retardant gasket 4 is provided with a plurality of pores 41.

[0036] Step 4: A mounting hole is provided in the center of the non-woven tape 1, and an outer limiting convex ring 23 and an inner limiting convex ring 22 are provided at one end of the ceramic tube 2. The ceramic tube 2 is passed through the mounting hole in the center of the non-woven tape 1 so that the non-woven tape 1 sticks to the outer limiting convex ring 23 of the ceramic tube 2; the flame retardant gasket 4 is embedded in the ceramic tube 2, and the inner limiting convex ring 22 plays a limiting role. Then the core material 3 is inlaid and installed to obtain moxa fumigation, in which the inner diameter of the end of the ceramic tube 2 away from the inner limiting convex ring 22 is larger, and a breathable groove 21 is formed between the ceramic tube 2 and the core material 3 to facilitate the combustion of the core material 3.

[0037] Example 3

[0038] See also Figure 1 This embodiment provides a moxa fumigation method, comprising the following implementation steps:

[0039] Step 1: Stir 10 kg of polyvinyl alcohol powder with an average molecular weight of 15×104 and 230 L of deionized water at 78° C. for 25 min to obtain a polyvinyl alcohol solution; add 200 L of polyvinyl alcohol solution, 100 L of liquid paraffin and 1.1 kg of Tween 20 into a stirring kettle, stir at 700 r / min for 25 min, adjust the pH value of 20 L of 1,5-pentanediol to 2 with hydrochloric acid and add it into the stirring kettle, continue stirring at 605° C. for 80 min, adjust the pH value to 7 with sodium hydroxide solution after cooling, centrifuge at 5500 r / min for 15 min, wash the precipitate with anhydrous ethanol for 4 times, and vacuum dry at 50° C. to obtain a microcapsule shell; mix 60 kg of wormwood essential oil and 10 kg of microcapsule shell, let stand for 24 h, filter, and dry to obtain wormwood oil microcapsules.

[0040] Step 2: Mix 28 kg of mugwort, 2.5 kg of patchouli and 4 kg of cloves and grind them into fine wool. Mix 20 kg of fine wool and 4 kg of mugwort oil microcapsules evenly and fill them into a cylindrical mold and compact them. Demould and cut into sections to obtain core material 3.

[0041] Step 3: Grind the polyimide plastic into a high-temperature resistant plastic powder with a particle size of 180 μm; grind the low-density polyethylene plastic into a polyethylene plastic powder with a particle size of 80 μm; mix 25 kg of magnesium hydroxide powder, 14 kg of expandable graphite powder, 30 kg of graphene powder and 1200 L of 50% ethanol aqueous solution, and ultrasonically disperse them for 25 minutes, add 18 kg of polyethylene plastic powder and 40 kg of high-temperature resistant plastic powder, and continue to ultrasonically disperse them for 25 minutes, then stir for 4 hours at 68°C and 400 r / min to obtain a slurry, vacuum dry the slurry at 50°C, and crush it to obtain a composite powder; transfer the composite powder to a mold, and press it into a flame retardant gasket 4 at 15 MPa and 125°C, and the flame retardant gasket 4 is provided with a plurality of pores 41.

[0042] Step 4: A mounting hole is provided in the center of the non-woven tape 1, and an outer limiting convex ring 23 and an inner limiting convex ring 22 are provided at one end of the ceramic tube 2. The ceramic tube 2 is passed through the mounting hole in the center of the non-woven tape 1 so that the non-woven tape 1 sticks to the outer limiting convex ring 23 of the ceramic tube 2; the flame retardant gasket 4 is embedded in the ceramic tube 2, and the inner limiting convex ring 22 plays a limiting role. Then the core material 3 is inlaid and installed to obtain moxa fumigation, in which the inner diameter of the end of the ceramic tube 2 away from the inner limiting convex ring 22 is larger, and a breathable groove 21 is formed between the ceramic tube 2 and the core material 3 to facilitate the combustion of the core material 3.

[0043] Example 4

[0044] See also Figure 1 This embodiment provides a moxa fumigation method, comprising the following implementation steps:

[0045] Step 1: Stir 10 kg of polyvinyl alcohol powder with an average molecular weight of 15×104 and 240 L of deionized water at 80° C. for 30 min to obtain a polyvinyl alcohol solution; add 200 L of polyvinyl alcohol solution, 100 L of liquid paraffin and 1.2 kg of Tween 20 into a stirring kettle, stir at 800 r / min for 30 min, adjust the pH value of 20 L of 1,5-pentanediol to 2 with hydrochloric acid and add it into the stirring kettle, continue stirring at 70° C. for 90 min, adjust the pH value to 7 with sodium hydroxide solution after cooling, centrifuge at 6000 r / min for 20 min, wash the precipitate with anhydrous ethanol for 5 times, and vacuum dry at 60° C. to obtain a microcapsule shell; mix 60 kg of wormwood essential oil and 10 kg of microcapsule shell, let it stand for 24 h, filter, and dry to obtain wormwood oil microcapsules.

[0046] Step 2: Mix 30 kg of mugwort, 3 kg of patchouli and 5 kg of cloves and grind them into fine wool. Mix 20 kg of fine wool and 5 kg of mugwort oil microcapsules evenly and fill them into a cylindrical mold and compact them. Demould and cut into sections to obtain core material 3.

[0047] Step 3: Grind the polyphenylene sulfide plastic into a high-temperature resistant plastic powder with a particle size of 200 μm; grind the low-density polyethylene plastic into a polyethylene plastic powder with a particle size of 100 μm; mix 30 kg of magnesium hydroxide powder, 15 kg of expandable graphite powder, 40 kg of graphene powder and 1500 L of 50% ethanol aqueous solution, and ultrasonically disperse them for 30 minutes, add 20 kg of polyethylene plastic powder and 45 kg of high-temperature resistant plastic powder, and continue to ultrasonically disperse them for 30 minutes, then stir for 5 hours at 65-70°C and 500 r / min to obtain a slurry, vacuum dry the slurry at 60°C, and crush it to obtain a composite powder; transfer the composite powder to a mold, and press it into a flame retardant gasket 4 at 20 MPa and 130°C, and the flame retardant gasket 4 is provided with a plurality of pores 41.

[0048] Step 4: A mounting hole is provided in the center of the non-woven adhesive tape 1, and an outer limiting convex ring 23 and an inner limiting convex ring 22 are provided at one end of the ceramic tube 2. The ceramic tube 2 is passed through the mounting hole in the center of the non-woven adhesive tape 1, so that the non-woven adhesive tape 1 sticks to the outer limiting convex ring 23 of the ceramic tube 2; the flame retardant gasket 4 is embedded in the ceramic tube 2, and the inner limiting convex ring 22 plays a limiting role, and then the core material 3 is inlaid and installed to obtain moxa fumigation. The inner diameter of the end of the ceramic tube 2 away from the inner limiting convex ring 22 is larger, and a breathable groove 21 is formed between the ceramic tube 2 and the core material 3 to facilitate the combustion of the core material 3.

[0049] Comparative Example 1: Based on Example 4, the polyimide plastic in step three is replaced with polyethylene plastic, and the polyethylene plastic powder ground into 200 μm replaces the high temperature resistant plastic powder, and the other steps remain unchanged to prepare moxa fumigant.

[0050] Comparative Example 2: Based on Example 4, no magnesium hydroxide powder is added in step three, and the other steps remain unchanged to prepare moxa fumigant.

[0051] Comparative Example 3: Based on Example 4, no expandable graphite powder is added in step three, and the other steps remain unchanged to prepare moxa fumigant.

[0052] Comparative Example 4: Based on Example 4, no graphene powder is added in step three, and the other steps remain unchanged to prepare moxa fumigant.

[0053] In order to unify the test standards, the inner diameter of the ceramic tube 2 where the flame retardant gasket 4 is installed is 1.8 cm, the inner diameter of the air permeable groove 21 is 2 cm, the length of the core material 3 is 3 cm, and one end of the core material 3 extends 22 mm out of the ceramic tube. The ceramic tube 2 in the embodiments and comparative examples was customized by Hunan Guoci New Materials Technology Co., Ltd. and uses alumina ceramics; the non-woven tape 1 was purchased from 3M Company.

[0054] Safety test of moxa fumigation in the embodiment:

[0055] One end of the thermocouple temperature sensor is connected to the end of the flame retardant gasket 4 away from the core material 3, and the other end of the thermocouple temperature sensor is connected to a paperless recorder to record the temperature change at the gasket during the combustion of the core material 3. The moxa fumigation core material 3 is lit, and the burning time of the core material 3 and the temperature recorded at the corresponding time are recorded. The results are shown in Table 1:

[0056] Table 1

[0057]

[0058] The burning time of the moxa fumigation core material 3 is about 18 minutes. It can be seen from Table 1 that during the burning process of the core material 3 in the embodiment, the temperature at the flame retardant gasket 4 is up to 54°C, which is within the acceptable temperature range of human skin (70°C) and meets the temperature requirements of fumigation. According to Comparative Example 1, it can be seen that adding high temperature resistant plastic powder helps to quickly reduce the temperature of the flame retardant gasket 4 after the core material 3 is burned; according to Comparative Example 4, it can be seen that graphene helps to increase the thermal conductivity of the flame retardant gasket 4, which helps to gather heat when the thermal conductivity of alumina ceramics is poor.

[0059] After removing the ashes after burning, observing the flame retardant gasket 4 after the above test, the pores 41 of the flame retardant gasket 4 in Examples 1 to 4, Comparative Example 2 and Comparative Example 4 are completely blocked; the flame retardant gasket 4 in Comparative Example 1 and Comparative Example 3 shows different degrees of hot melt deformation; the above shows that different materials have an impact on the flame retardant effect of the flame retardant gasket 4.

[0060] The gaskets in Examples 1 to 4 and Comparative Examples 1 to 4 were tested for performance. Different composite powders for preparing gaskets were prepared into 130 mm × 13 mm × 3 mm samples under the same conditions. The flame retardant grades (UL-94V) of different samples were tested using a vertical combustion instrument according to GB / T 2408-2008, and the occurrence of droplets was observed. The results are shown in Table 2:

[0061] Table 2

[0062] project Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 UL-94 V-0 V-0 V-0 V-0 V-1 V-1 V-2 V-0 Whether there is molten drop none none none none have none have none

[0063] It can be seen from Table 2 that the samples in Examples 1 to 4 have better flame retardancy, and the magnesium hydroxide powder and expandable graphite powder increase the flame retardancy and prevent the occurrence of molten droplets.

[0064] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing moxa fumigation, characterized in that: The steps include: Step 1: Mix wormwood, patchouli and cloves in a mass ratio of 25-30:2-3:2-5, grind into fine wool, mix evenly with wormwood oil microcapsules, mold, cut into sections, and obtain core material (3); Step 2: grinding the high temperature resistant plastic into high temperature resistant plastic powder, grinding the low density polyethylene plastic into polyethylene plastic powder; mixing magnesium hydroxide powder, expandable graphite powder, graphene powder and 50% ethanol aqueous solution by mass, ultrasonically dispersing, adding polyethylene plastic powder and high temperature resistant plastic powder, and continuing ultrasonically dispersing, and then stirring for 3-5 hours at 65-70° C. and 250-500 r / min, drying, and crushing to obtain composite powder; pressing the composite powder into a flame retardant gasket (4) with pores (41) under the conditions of 10-20 MPa and 120-130° C.; Step three: Assemble the non-woven fabric tape (1), the ceramic tube (2), the flame retardant gasket (4) and the core material (3) to obtain the moxa fumigant.

2. The method for preparing moxa fumigation according to claim 1, characterized in that: The dosage ratio of the magnesium hydroxide powder, expandable graphite powder, graphene powder, ethanol aqueous solution, polyethylene plastic powder and high temperature resistant plastic powder is 20-30g: 10-15g: 20-40g: 750-1500mL: 15-20g: 30-45g; the particle size of the high temperature resistant powder is 100-200μm; and the particle size of the polyethylene plastic powder is 50-100μm.

3. The method for preparing moxa fumigation according to claim 1, characterized in that: The high temperature resistant plastic is one of polyetheretherketone plastic, polytetrafluoroethylene plastic, polyimide plastic and polyphenylene sulfide plastic.

4. The method for preparing moxa fumigation according to claim 1, characterized in that: The usage ratio of the fine wool and the wormwood oil microcapsules is 20g:3-5g.

5. The method for preparing moxa fumigation according to claim 1, characterized in that: The wormwood oil microcapsules are prepared by the following steps: The polyvinyl alcohol powder and deionized water are stirred at 70-80°C for 15-30 minutes to obtain a polyvinyl alcohol solution; the polyvinyl alcohol solution, liquid paraffin and an emulsifier are added into a stirring kettle, stirred at 600-800r / min for 20-30 minutes, 1,5-pentanediol is adjusted to a pH value of 2 and then added into the stirring kettle, stirring is continued at 60-70°C for 60-90 minutes, cooled, the pH value is adjusted to 7, centrifuged, the precipitate is washed, and dried to obtain a microcapsule shell; the wormwood essential oil and the microcapsule shell are mixed in a mass ratio of 6:1, the mixture is allowed to stand for 24 hours, filtered, and dried to obtain wormwood oil microcapsules.

6. The method for preparing moxa fumigation according to claim 5, characterized in that: The dosage ratio of the polyvinyl alcohol to deionized water is 1g:20-24mL.

7. The method for preparing moxa fumigation according to claim 5, characterized in that: The dosage ratio of the polyvinyl alcohol solution, liquid paraffin, emulsifier and 1,5-pentanediol is 20 mL: 10 mL: 0.1-0.12 g: 2 mL.

8. The method for preparing moxa fumigation according to claim 5, characterized in that: The emulsifier is Span 80 or Tween 20.

9. Use of moxa fumigation obtained according to the preparation method described in any one of claims 1 to 8 in foot fumigation.

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