A volatile, controllable disinfectant fragrance gel and its preparation method

Abstract

This invention relates to a controllable evaporation gel fragrance, comprising a container, a heating element, a gel fragrance solid, and a fragrance-free gel layer. The heating element is disposed inside the container, the gel fragrance solid is formed inside the container, and the fragrance-free gel layer is formed on the surface of the gel fragrance solid, sealing the gel fragrance solid inside the container. The gel fragrance of this invention is made by forming an emulsion of perfume essential oil and water, then encapsulating it with gel macromolecules to form a solid, and controlling its evaporation rate through the heating element. During use, electricity is applied to both ends of the heating element to raise its temperature, which in turn raises the temperature of the fragrance gel, accelerating its evaporation rate. When not in use, the heating element is turned off to reduce the evaporation rate. The controllable evaporation gel fragrance preparation method of this invention is simple, reliable, and low-cost, suitable for mass production, and safer to use, avoiding the safety hazards associated with liquid perfumes.

Description

Technical Field

[0001] This invention relates to the field of in-vehicle fragrance technology, specifically to a disinfectant fragrance gel with controllable volatility and its preparation method. Background Technology

[0002] To improve the environment inside cars, liquid perfumes and solid fragrances are commonly used. Both methods have their advantages and disadvantages:

[0003] Liquid perfumes are inexpensive, but once opened, they continuously evaporate uncontrollably. Liquid perfumes are typically stored in glass containers and should be kept away from direct sunlight. Prolonged exposure to sunlight not only accelerates evaporation but also poses a risk of explosion.

[0004] Solid fragrances generally require a corresponding fragrance evaporation device and control system. A solid fragrance evaporation device typically includes a fragrance bottle, a fragrance box containing the bottle, a heating module for heating the solid fragrance, a fragrance changing component for changing the fragrance, a fan module for delivering the fragrance, and a control system for controlling the evaporation of the fragrance. Therefore, although the evaporation of solid fragrances is controllable, the cost is relatively high. Furthermore, the manufacturing cost of solid fragrance materials is also relatively high.

[0005] With the widespread application of hydrogels, their polymer networks can be formed by the entanglement and / or cross-linking of one or more polymer chains to create a three-dimensional network with high water content. If perfume is encapsulated by hydrogel macromolecules to form a solid form, the dangers associated with liquid perfumes can be avoided, and the cost is much lower compared to solid fragrances. However, the evaporation rate of solid fragrance gels is uncontrollable, and a large amount of evaporation is inevitable during long-term transportation and storage. Summary of the Invention

[0006] The technical problem solved by this invention is to provide a disinfectant fragrance gel with low preparation cost, simple preparation method, and controllable volatility, as well as the preparation method thereof.

[0007] The technical solution adopted by this invention to solve its technical problem is:

[0008] A method for preparing a volatile, controllable disinfectant fragrance gel includes the following steps:

[0009] S1: Preparation of gel precursor: A certain amount of polyacrylic acid is added to a deionized water mixture containing ethylene glycol and polyethylene glycol, heated and stirred to completely dissolve the polyacrylic acid in the deionized water mixture, and allowed to stand until the bubbles are expelled to obtain the gel precursor PAA mixed solution.

[0010] S2: Preparation of acidic solutions: Take a certain amount of citric acid, hydrochloric acid and oxalic acid and add them to deionized water respectively, stir thoroughly and evenly to prepare citric acid solution, hydrochloric acid solution and oxalic acid solution with pH value between 1 and 2 respectively;

[0011] S3: Preparation of sodium chlorite solution: Add a certain amount of sodium chlorite to deionized water, stir at room temperature until it is completely dissolved in the deionized water, and prepare a sodium chlorite solution of a certain concentration.

[0012] S4: Preparation of fragrance emulsion: Take a quantitative amount of the gel precursor from step S1 and stir it. Add perfume dropwise to the PAA mixed solution and stir. The essential oil and water in the perfume form an emulsion under the action of surfactant to prepare the fragrance emulsion.

[0013] S5: Mixing sodium chlorite solution: Continue stirring the fragrance emulsion from step S4, and slowly add a measured amount of the sodium chlorite solution to mix, thereby preparing a fragrance mixed emulsion containing sodium chlorite;

[0014] S6: Preparation of disinfectant fragrance gel mixture solution: Continue stirring the mixture solution in step S5, and add the crosslinking agent and the acidic solution in step S2 in sequence to make it fully mixed and homogeneous, so as to prepare the disinfectant fragrance gel mixture solution;

[0015] S7: Static crosslinking. The disinfectant fragrance gel mixture solution prepared in step S6 is added to a container equipped with a heating element and allowed to stand. The disinfectant fragrance gel mixture solution undergoes static crosslinking. The sodium chlorite and the hydrochloric acid react to generate chlorine dioxide disinfectant material. The polyacrylic acid and the crosslinking agent undergo a crosslinking reaction in the acidic solution to crosslink and encapsulate the perfume and the chlorine dioxide disinfectant material, thereby preparing a disinfectant fragrance gel solid with a certain elasticity.

[0016] S8: Prepare a layer of unscented gel on the surface of the disinfectant fragrance gel solid: Take a certain amount of the gel precursor, the crosslinking agent and the acidic solution, stir and mix them thoroughly to prepare an unscented gel mixture, and pour the unscented gel mixture onto the surface of the disinfectant fragrance gel solid, let it stand and crosslink, thereby preparing an unscented gel on the surface of the disinfectant fragrance gel solid.

[0017] Further, in step S1, the polyacrylic acid includes one or more of Mv450000, Mv1250000, Mv3000000 and Mv4000000, each weighed at 2-8g, for a total of 8-32g, and added to a mixture of 60-120ml of deionized water, 20-40ml of ethylene glycol and 20-60ml of polyethylene glycol. The mixture is heated and stirred at a temperature of 80-95℃ for 3-5 hours, and then allowed to stand.

[0018] Further, in step S2, 23-30g of the citric acid is weighed and added to 90-100ml of the deionized water, and stirred at room temperature until the citric acid is completely dissolved in the deionized water to prepare the citric acid solution; 10-20ml of the hydrochloric acid is slowly added dropwise to 80-90ml of the deionized water to prepare the hydrochloric acid solution; 11-20g of the oxalic acid is weighed and added to 90-100ml of the deionized water, and stirred thoroughly until the oxalic acid is completely dissolved in the deionized water to prepare the oxalic acid solution.

[0019] Furthermore, in step S4, 20-30 ml of the gel precursor is measured and added to a clean beaker, and placed on a magnetic stirrer for stirring at a speed of 1000-1500 rpm / min. During stirring, 15-35 ml of the perfume is added dropwise at a rate of 0.5-1 ml per minute.

[0020] Further, in step S6, 0.5-2 ml of crosslinking agent is slowly added dropwise, and stirred for 5-20 min, then 0.1-10 ml of the acidic solution is slowly added, and stirred for 20-40 min; the crosslinking agent is one or more of glutaraldehyde, boric acid, or dialdehyde, and the acidic solution is one or more of the citric acid solution, the hydrochloric acid solution, and the oxalic acid solution.

[0021] Further, in step S8, 10-20 ml of the gel precursor is measured and stirred, and 0.2-1 ml of the crosslinking agent is slowly added and stirred for 5-20 min. Then, 0.1-2 ml of the acidic solution is added and stirred for 20-40 min to ensure that the mixture is thoroughly stirred and homogeneous.

[0022] Furthermore, it also includes the following steps:

[0023] S9: Make several ventilation holes on the unscented gel as ventilation holes for the evaporation of the disinfectant fragrance gel solid.

[0024] A volatile, controllable disinfectant fragrance gel includes a container, a heating element, a disinfectant fragrance gel solid, and a fragrance-free gel layer. The heating element is disposed inside the container, the disinfectant fragrance gel solid is formed inside the container, and the fragrance-free gel layer is formed on the surface of the disinfectant fragrance gel solid and seals the disinfectant fragrance gel solid inside the container. The fragrance-free gel layer has several ventilation holes.

[0025] Furthermore, the heating element is located at the bottom of the interior of the vessel and is encased by the disinfectant fragrance gel solid.

[0026] Furthermore, the heating element is a ceramic heating element, and its positive and negative electrodes are led out of the vessel to connect to the positive and negative terminals of the power supply.

[0027] The gel fragrance of this invention is made by forming an emulsion of perfume essential oil and water, then encapsulating it with gel macromolecules to form a solid, and controlling its evaporation rate with a heating element. During use, electricity is applied to both ends of the heating element to raise its temperature, which in turn raises the temperature of the fragrance gel, thus accelerating its evaporation rate. When not in use, the heating element is turned off to reduce its evaporation rate.

[0028] This invention utilizes sodium chlorite to decompose into chlorine dioxide disinfectant material in an acidic environment. This material is then encapsulated with a gel macromolecule along with fragrance, and its evaporation rate is controlled by a heating element, thereby achieving the sterilization and disinfection function through the chlorine dioxide disinfectant material.

[0029] By sealing the surface of the disinfectant fragrance gel solid with a layer of unscented gel, evaporation can be effectively prevented during long-term transportation and storage, thus facilitating transport. It also reduces the contact area between the disinfectant fragrance gel solid and air, preventing excessive evaporation even when not in use.

[0030] The method for preparing the volatile disinfectant fragrance gel of the present invention is simple, reliable, and low-cost, making it suitable for mass production. Furthermore, it is safer to use, avoiding the safety hazards associated with liquid perfumes. Attached Figure Description

[0031] Figure 1 This invention relates to a method for preparing a volatile, controllable disinfectant fragrance gel;

[0032] Figure 2 This is the crosslinking reaction formula of the present invention;

[0033] Figure 3 This is a structural diagram of a disinfectant fragrance gel with controllable volatility according to the present invention;

[0034] Figure 4This is a graph showing the change in gel mass of a volatile, controllable disinfectant fragrance gel of the present invention at different temperatures;

[0035] The diagram is marked as follows:

[0036] 1. Container, 2. Heating element, 3. Sterilizing fragrance gel solid, 4. Fragrance-free gel layer, 5. Ventilation hole. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] like Figure 1 The diagram illustrates a method for preparing a volatile, controllable disinfectant fragrance gel according to the present invention, comprising the following steps:

[0040] Step S1: Prepare the gel precursor. Weigh 2-8g of each of two or more of the following polyacrylic acid (PAA): Mv450000, Mv1250000, Mv3000000, and Mv4000000. Add them to a mixture of 60-120ml of deionized water, 20-40ml of ethylene glycol, and 20-60ml of polyethylene glycol. Stir thoroughly to form a homogeneous solution.

[0041] In step S1, since Mv450000, Mv1250000, Mv3000000, and Mv4000000 polyacrylic acid (PAA) have different molecular weights, it is recommended to weigh out two or more types to better form a three-dimensional network. Ethylene glycol and polyethylene glycol are used as the solvent and surfactant for polyacrylic acid, respectively.

[0042] Further, the mixed solution in S1 is added to a water bath, and the water bath temperature is set to 80-95℃. The mixture is heated and stirred in the water bath for 3-5 hours to completely dissolve PAA in the deionized water mixture. Then, the water bath is turned off, and the mixture is allowed to stand for 2-8 hours to cool naturally to room temperature. During the cooling process, air bubbles in the mixture will be expelled, thus obtaining the PAA gel precursor mixed solution.

[0043] Furthermore, in the water bath heating and stirring process, the liquid solvent in the mixture of deionized water, ethylene glycol, and polyethylene glycol evaporates and then re-condenses, flowing back into the three-necked flask during water bath heating.

[0044] Step S2: Prepare an acidic solution. Weigh 23-30g of citric acid into a clean beaker, add 90-100ml of deionized water, and stir at room temperature until the citric acid is completely dissolved in the deionized water to obtain a citric acid solution. Measure 10-20ml of hydrochloric acid, add 80-90ml of deionized water to a clean beaker, and slowly add the hydrochloric acid dropwise to the deionized water while stirring at room temperature to obtain a hydrochloric acid solution. Weigh 11-20g of oxalic acid into a clean beaker, add 90-100ml of deionized water, and stir until the oxalic acid is completely dissolved in the deionized water to obtain an oxalic acid solution.

[0045] In step S2, the pH values ​​of the three acidic solutions prepared are all between 1 and 2.

[0046] Step S3: Prepare sodium chlorite solution. Weigh 6-10g of sodium chlorite into a clean beaker, add 20-30ml of deionized water, place it on a magnetic stirrer, and stir at room temperature until the sodium chlorite is completely dissolved in the deionized water to prepare a sodium chlorite solution of a certain concentration.

[0047] Step S4: Prepare the fragrance emulsion. Take 20-30 ml of the above PAA mixture and add it to a clean beaker. Then place the beaker on a magnetic stirrer and stir at a speed of 1000-1500 rpm / min. During stirring, add 15-35 ml of liquid perfume dropwise at intervals of 0.5-1 ml per minute. The essential oils and water in the perfume form an emulsion under the action of the surfactant (the above-mentioned polyethylene glycol), thus preparing the fragrance emulsion.

[0048] Step S5: Mix the sodium chlorite solution and continue stirring the fragrance emulsion from step S4. During the stirring process, slowly add 0.1-6 ml of sodium chlorite solution and stir for 1-5 minutes to prepare the sodium chlorite fragrance emulsion mixture.

[0049] Step S6: Prepare a disinfectant fragrance gel mixture solution. Continue stirring the mixture solution from step S5, and add the crosslinking agent and the acidic solution from step S2 in sequence to ensure thorough mixing.

[0050] During the stirring process, slowly add the crosslinking agent dropwise, stirring for 5-20 minutes. The crosslinking agent can be one or more of glutaraldehyde, boric acid, or dialdehyde, with the total amount controlled between 1-2 ml. Then, take one or more of the citric acid solution, hydrochloric acid solution, and oxalic acid solution dissolved in S2 above, and add 0.1-10 ml of each while stirring, with the total amount of acidic solution controlled between 0.3-15 ml. Stir for 20-40 minutes to ensure thorough mixing and prepare the disinfectant fragrance gel mixture solution.

[0051] In step S6, the crosslinking agent reacts with polyacrylic acid in an acidic solution. Citric acid, hydrochloric acid, and oxalic acid provide the acidic conditions for the crosslinking reaction. The crosslinking reaction equation is as follows: Figure 2 As shown.

[0052] Meanwhile, sodium chlorite and hydrochloric acid in the mixed solution react to generate chlorine dioxide disinfectant. The reaction equation is as follows:

[0053] 5NaClO2+4HCl→4ClO2↑+5NaCl+2H2O.

[0054] Furthermore, it is recommended that the cross-linking agent be two or more of glutaraldehyde, boric acid, or dialdehyde, which is more conducive to the formation of a three-dimensional network to encapsulate fragrance and disinfectant materials.

[0055] Step S7: Static crosslinking. Add the disinfectant fragrance gel mixture from step S6 to a container equipped with a ceramic heating element and let it stand to allow the disinfectant fragrance gel mixture to fully crosslink and form a three-dimensional network structure, thereby locking in the perfume and chlorine dioxide disinfectant material, and preparing a disinfectant fragrance gel solid with a certain elasticity.

[0056] Step S8: Prepare a layer of unscented gel on the surface of the disinfectant fragrance gel solid.

[0057] Further, weigh 10-20 ml of the PAA mixture solution from step S1 and add it to a clean beaker. Place the beaker on a magnetic stirrer and stir. During stirring, slowly add 0.2-1 ml of crosslinking agent and stir for 5-20 minutes. Then, take the acidic solutions of citric acid, hydrochloric acid, and oxalic acid dissolved in step S2 and add 0.1-2 ml of each solution while stirring for 20-40 minutes until the mixture is homogeneous, thus preparing a fragrance-free gel mixture. Pour 0.5-2 ml of the fragrance-free gel mixture onto the surface of the disinfectant fragrance gel solid from step S7 and allow it to stand for crosslinking. This prepares a layer of fragrance-free gel on the surface of the disinfectant fragrance gel solid. The fragrance-free gel seals the disinfectant fragrance gel solid in a container equipped with a heating element, thereby reducing the evaporation rate of the disinfectant fragrance gel solid.

[0058] During use, a voltage range is applied to the heating element in the container via a power source to control and adjust its heating temperature, thereby controlling the evaporation rate of the disinfectant fragrance gel. At different temperatures, the fragrance and chlorine dioxide encapsulated in the gel macromolecules release at different rates; the higher the temperature, the faster the release, and the lower the temperature, the slower the release. When not in use, turning off the power to the heating element allows the temperature of the disinfectant fragrance gel to slowly return to room temperature, thus reducing the release / evaporation rate of the fragrance. Further steps are included for this purpose:

[0059] Step S9: Make several vent holes on the top of the unscented gel. During the heating process of the ceramic heating plate, the disinfectant fragrance gel solid in the lower layer of the unscented gel will evaporate and release fragrance and chlorine dioxide disinfectant gas through the vent holes on the unscented gel.

[0060] Adding a layer of unscented gel as a sealing layer to the surface of the disinfectant fragrance gel solid can reduce evaporation during long-term transportation and storage, and also reduce evaporation of the disinfectant fragrance gel solid when it is not in use.

[0061] like Figure 3 The diagram shown is a structural diagram of a volatile, controllable disinfectant fragrance gel according to the present invention. It includes a container 1, a heating element 2 is provided inside the container 1, and the positive and negative electrodes of the heating element 2 are led out of the container 1 through leads to form a positive electrode 201 and a negative electrode 202, respectively. The positive and negative electrodes are respectively connected to the positive and negative terminals of a power source.

[0062] The heating element 2 is located at the bottom inside the vessel 1, or is hidden at the bottom inside the vessel 1, or is hidden at the bottom outside the vessel 1.

[0063] Furthermore, a disinfectant fragrance gel solid 3 is statically cross-linked inside the container 1, and a layer of unscented gel 4 is statically cross-linked on the surface of the disinfectant fragrance gel solid 3, sealing the disinfectant fragrance gel solid 3 inside the container 1. The unscented gel 4 also has several ventilation holes 5. The heating element 2 is heated by applying pressure from a power source, and the heating element raises its temperature to provide a high temperature for the disinfectant fragrance gel, thereby accelerating the evaporation rate of the disinfectant fragrance gel solid. By adjusting the voltage of the power source, the heating temperature of the heating element is controlled, thereby controlling the evaporation rate of the disinfectant fragrance gel solid, achieving controllable evaporation of the disinfectant fragrance gel.

[0064] When not using the fragrance, turn off the power at both ends of the heating element, and the temperature of the disinfectant fragrance gel solid will slowly return to room temperature. Because there is a layer of unscented gel on its surface, the evaporation rate of the disinfectant fragrance gel solid will be greatly reduced.

[0065] Heating element 2 is a ceramic heating element with a resistance of 20-30 ohms. Its power supply is 5-12V and its heating temperature is 30-50°C.

[0066] like Figure 4 The figure shows the gel mass change curves of the controllable evaporation disinfectant fragrance gel of this invention at different temperatures. From top to bottom, the curves represent the gel mass change at -10°C, 10°C, 20°C, 30°C, 40°C, 50°C, 60°C, and 85°C. The evaporation curves of the gel mass at different temperatures were tested under continuous ventilation at those temperatures. The curves show that as the temperature increases, the evaporation rate of the disinfectant fragrance gel accelerates, with the fastest evaporation rate at 85°C, where the fragrance is almost completely evaporated within 3 days. As the temperature decreases, the evaporation rate slows down, with virtually no evaporation at -10°C. Therefore, when people need fragrance, heating can be used to accelerate the evaporation of the fragrance gel. Furthermore, the disinfectant fragrance gel exhibits virtually no evaporation when sealed. Therefore, during use, when fragrance is needed, the disinfectant fragrance gel is heated, and ventilation accelerates the evaporation rate; when not needed, ventilation stops, the channel is closed, and the gel remains in a sealed space with minimal loss.

[0067] The volatile disinfectant fragrance gel of this invention can withstand temperatures up to 85°C. Above this temperature, a large amount of water will be released from the gel in a short time, easily causing the solid disinfectant fragrance gel to separate from the container, resulting in the solid disinfectant fragrance gel falling off the container and affecting its use. Therefore, the ceramic heating element is designed to operate at a temperature below 70°C.

[0068] The ceramic heating element is located at the bottom of the vessel. After the disinfectant fragrance gel solid is heated and evaporates, it slowly releases the fragrance and water inside, which will gradually be absorbed to the edge and bottom of the vessel and solidify with the ceramic heating element.

[0069] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for preparing a volatile, controllable disinfectant fragrance gel, characterized in that: Includes the following steps: S1: Preparation of gel precursor: A certain amount of polyacrylic acid is added to a deionized water mixture containing ethylene glycol and polyethylene glycol, heated and stirred to completely dissolve the polyacrylic acid in the deionized water mixture, and allowed to stand until the bubbles are expelled to obtain the gel precursor PAA mixed solution. S2: Preparation of acidic solutions: Take a certain amount of citric acid, hydrochloric acid and oxalic acid and add them to deionized water respectively, stir thoroughly and evenly to prepare citric acid solution, hydrochloric acid solution and oxalic acid solution with pH value between 1 and 2 respectively; S3: Preparation of sodium chlorite solution: Add a certain amount of sodium chlorite to deionized water, stir at room temperature until it is completely dissolved in the deionized water, and prepare a sodium chlorite solution of a certain concentration. S4: Preparation of fragrance emulsion: Take a quantitative amount of the gel precursor from step S1 and stir it. Add perfume dropwise to the PAA mixed solution and stir. The essential oil and water in the perfume form an emulsion under the action of surfactant to prepare the fragrance emulsion. S5: Mixing sodium chlorite solution: Continue stirring the fragrance emulsion from step S4, and slowly add a measured amount of the sodium chlorite solution to mix, thereby preparing a fragrance mixed emulsion containing sodium chlorite; S6: Preparation of disinfectant fragrance gel mixture solution: Continue stirring the mixture solution in step S5, and add the crosslinking agent and the acidic solution in step S2 in sequence to make it fully mixed and homogeneous, so as to prepare the disinfectant fragrance gel mixture solution; S7: Static crosslinking. The disinfectant fragrance gel mixture solution prepared in step S6 is added to a container equipped with a heating element and allowed to stand. The disinfectant fragrance gel mixture solution undergoes static crosslinking. The sodium chlorite and the hydrochloric acid react to generate chlorine dioxide disinfectant material. The polyacrylic acid and the crosslinking agent undergo a crosslinking reaction in the acidic solution to crosslink and encapsulate the perfume and the chlorine dioxide disinfectant material, thereby preparing a disinfectant fragrance gel solid with a certain elasticity. S8: Prepare a layer of unscented gel on the surface of the disinfectant fragrance gel solid: Take a certain amount of the gel precursor, the crosslinking agent and the acidic solution, stir and mix them thoroughly to prepare an unscented gel mixture, and pour the unscented gel mixture onto the surface of the disinfectant fragrance gel solid, let it stand and crosslink, thereby preparing an unscented gel on the surface of the disinfectant fragrance gel solid.

2. The method for preparing a volatile, controllable disinfectant fragrance gel as described in claim 1, characterized in that: In step S1, the polyacrylic acid includes one or more of Mv450000, Mv1250000, Mv3000000 and Mv4000000. 2-8g of each of these are weighed, for a total of 8-32g, and added to a mixture of 60-120ml of deionized water, 20-40ml of ethylene glycol, and 20-60ml of polyethylene glycol. The mixture is then heated and stirred at 80-95℃ for 3-5 hours, and then allowed to stand.

3. The method for preparing a volatile, controllable disinfectant fragrance gel as described in claim 1, characterized in that: In step S2, 23-30g of the citric acid is weighed and added to 90-100ml of the deionized water, and stirred at room temperature until the citric acid is completely dissolved in the deionized water to prepare the citric acid solution; 10-20ml of the hydrochloric acid is slowly added dropwise to 80-90ml of the deionized water to prepare the hydrochloric acid solution; 11-20g of the oxalic acid is weighed and added to 90-100ml of the deionized water, and stirred thoroughly until the oxalic acid is completely dissolved in the deionized water to prepare the oxalic acid solution.

4. The method for preparing a volatile, controllable disinfectant fragrance gel as described in claim 1, characterized in that: In step S4, 20-30 ml of the gel precursor is measured and added to a clean beaker, and then placed on a magnetic stirrer for stirring at a speed of 1000-1500 rpm / min. During stirring, 15-35 ml of the perfume is added dropwise at a rate of 0.5-1 ml per minute.

5. The method for preparing a volatile, controllable disinfectant fragrance gel as described in claim 1, characterized in that: In step S6, 0.5-2 ml of crosslinking agent is slowly added dropwise and stirred for 5-20 min, then 0.1-10 ml of the acidic solution is slowly added and stirred for 20-40 min; the crosslinking agent is one or more of glutaraldehyde, boric acid or dialdehyde, and the acidic solution is one or more of the citric acid solution, the hydrochloric acid solution and the oxalic acid solution.

6. The method for preparing a volatile, controllable disinfectant fragrance gel as described in claim 1, characterized in that: In step S8, 10-20 ml of the gel precursor is measured and stirred, and 0.2-1 ml of the crosslinking agent is slowly added. The mixture is stirred for 5-20 min, and then 0.1-2 ml of the acidic solution is added. The mixture is stirred for 20-40 min to ensure that the mixture is thoroughly stirred and homogeneous.

7. A method for preparing a volatile, controllable disinfectant fragrance gel according to any one of claims 1-6, characterized in that: It also includes the following steps: S9: Make several ventilation holes on the unscented gel as ventilation holes for the evaporation of the disinfectant fragrance gel solid.

8. A disinfectant fragrance gel with controllable volatility, characterized in that: The container includes, as described in claim 7, a heating element, a disinfectant fragrance gel solid, and a fragrance-free gel layer. The heating element is disposed inside the container, the disinfectant fragrance gel solid is formed inside the container, the fragrance-free gel layer is formed on the surface of the disinfectant fragrance gel solid and seals the disinfectant fragrance gel solid inside the container, and the fragrance-free gel layer has several ventilation holes.

9. The disinfectant fragrance gel with controllable volatility as described in claim 8, characterized in that: The heating element is located at the bottom of the container and is encased in the disinfectant fragrance gel solid.

10. The disinfectant fragrance gel with controllable volatility as described in claim 8, characterized in that: The heating element is a ceramic heating element, and its positive and negative electrodes are led out of the vessel to connect to the positive and negative terminals of the power supply.

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