A liquid material for reducing airborne particulate matter and a method of making the same

Abstract

The present application relates to a kind of liquid material for reducing the number of air suspension and its preparation method, belong to the technical field of fly inhibitor, comprising the following raw materials: propylene glycol, glycerol, polyacrylate particle, modified hydroxyethyl cellulose, phenoxyethanol and aloe juice;The product is non-toxic and has no side effects, will not cause harm to the person, it is convenient to store, and it is not flammable, the influence on environment is small, wherein the modified hydroxyethyl cellulose of self-made is added, with the characteristics of cationic quaternary ammonium salt type gemini surfactant, contains pyridyl quaternary ammonium salt, can synergistically exert good antibacterial effect with phenoxyethanol, and modified hydroxyethyl cellulose contains hydrophilic group (-OH and quaternary ammonium salt structure) and lipophilic group (alkyl long chain), show surface activity, have solubilization effect;Add it in liquid material, can evenly and effectively disperse each component, and maintain the state stability of system, so that the liquid material better plays a role.

Description

Technical Field

[0001] This invention belongs to the field of pollen suppressant technology, specifically, it relates to a liquid material for reducing the amount of airborne suspended particles and its preparation method. Background Technology

[0002] As a good landscaping tree species, the Chinese parasol tree is widely introduced to most provinces in China due to its high cost-effectiveness, ease of planting, and high survival rate. However, every year during the transition from spring to summer, the pollination of the Chinese parasol tree results in a lot of flying catkins. A single pollination can last for about a month, and the flying catkins may cause harm to the human body. When the catkins enter the eyes or nasal cavity, they can cause persistent pain and obstruct vision. When the catkins are severe, people's travel will be greatly affected, and those with severe catkin allergies may even be unable to go out.

[0003] There are two existing methods for suppressing flying catkins:

[0004] One method is chemical intervention – injecting pollen suppressants. This involves drilling holes in the tree trunk and injecting hormones using a high-pressure injector to inhibit the differentiation of female flowers. While this method can suppress pollen production in the short term, the hormones are not effective long-term, and re-injection is required every year. This method consumes a lot of manpower and resources and is not suitable for widespread application.

[0005] Another method is biological grafting. This involves pruning the existing branches and grafting male shoots onto the main trunk, thus converting the female plant into a male one. This method can permanently solve the problem of flying catkins, but it results in significant losses during the grafting process. Furthermore, grafted sycamores grow weakly and cannot function as shade-providing trees. Therefore, there is an urgent need for a low-cost method to suppress flying catkins that does not affect the growth of the sycamore. Summary of the Invention

[0006] The purpose of this invention is to provide a liquid material for reducing the amount of airborne suspended matter and a method for preparing the same, in order to solve the problems mentioned in the background art.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A liquid material for reducing the amount of airborne particulate matter comprises the following raw materials in parts by weight: 6.8-7.2 parts propylene glycol, 4.8-5.2 parts glycerin, 0.088-0.1 parts sodium polyacrylate, 0.52-0.54 parts modified hydroxyethyl cellulose, 0.35-0.42 parts phenoxyethanol, and the remainder being aloe vera juice.

[0009] A method for preparing a liquid material to reduce the amount of airborne particulate matter includes the following steps:

[0010] First step, glycerol and propylene glycol are dissolved in purified water, mixed and stirred, and then left to stand for one hour to obtain liquid 1;

[0011] Second step, liquid 1 is heated to 40℃, and sodium polyacrylate particles are introduced into it. After continuous stirring until the sodium polyacrylate particles are completely swollen and suspended, it is left to stand for 4h to wait for its dissolution, and then stirred again. After standing for 30min, liquid 2 is obtained;

[0012] Third step, purified water is cooled to 0℃, and modified hydroxyethyl cellulose is added. Continuous stirring forms a porridge, and liquid 3 is obtained;

[0013] Fourth step, liquid 3 and liquid 2 are mixed, and phenoxyethanol is added. Continuous stirring until completely dissolved and uniform, a mother liquor is obtained;

[0014] Fifth step, the mother liquor, aloe vera juice, and purified water are mixed and quickly stirred until uniform to obtain the liquid material;

[0015] Further, the mass fraction of propylene glycol in liquid 1 in the first step is 17%, and the mass fraction of glycerol is 12%;

[0016] Further, the mass fraction of sodium polyacrylate particles in liquid 2 in the second step is 2.2‰;

[0017] Further, the mass ratio of purified water to hydroxyethyl cellulose in the third step is 6:1;

[0018] Further, the mass ratio of liquid 3 to liquid 2 in the fourth step is 1:11;

[0019] Further, the mass ratio of the mother liquor, aloe vera juice, and purified water in the fifth step is 1:2:4;

[0020] Further, the modified hydroxyethyl cellulose is prepared by the following steps:

[0021] Step 1, m-hydroxybenzoic acid and formaldehyde ethyl ether solution are added to a three-necked flask, equipped with a condenser and a thermometer, and a magnetic stirrer is turned on. After the m-hydroxybenzoic acid is completely dissolved, 2-(2-aminoethyl)pyridine is added dropwise using a high-pressure dropping pump. Then, the reaction is carried out at a temperature of 90-110℃ for 4h. After the reaction is completed, deionized water is added for washing. The organic layer is separated by a separatory funnel and then rotary evaporated to obtain intermediate 1;

[0022] Step 2, intermediate 1 and bromododecane are added to a three-necked flask, equipped with a condenser and a thermometer, and a magnetic stirrer is turned on. The reaction is carried out at a temperature of 60℃ for 5h. After the reaction is completed, the reaction product is transferred to ice water, vacuum filtered, and the filter cake is recrystallized with acetone. After drying in an oven, intermediate 2 is obtained;

[0023] Step 3, hydroxyethyl cellulose, triethylamine, malonyl chloride and DMF are added into a three-necked flask, a condenser and a thermometer are installed, a magnetic stirrer is started, a DMF solution of intermediate 2 is added into the three-necked flask through a high-pressure dropping pump, after the dropping is completed, the reaction is carried out at 40-50 DEG C for 1-1.5 h, after the reaction is completed, ice water is added into the three-necked flask, the organic layer is separated by a separating funnel, and vacuum drying is carried out after rotary evaporation to obtain modified hydroxyethyl cellulose;

[0024] Further, the formaldehyde ethyl ether solution of step 1 is configured by 0.21-0.23 mol formaldehyde and 150 g ethyl ether, the used amount of m-hydroxybenzoic acid and 2-(2-aminoethyl) pyridine is 12.6 g: 11.5 g-12.2 g;

[0025] Further, the used amount of intermediate 1 and bromo dodecane in step 2 is 23-24.3 g: 45-47 g;

[0026] Further, the DMF solution of intermediate 2 in step 3 is configured by 7.7 g intermediate 2 and 50 g DMF, and the used amount of hydroxyethyl cellulose, triethylamine, malonyl chloride and DMF is 15 g: 1.1-1.3 g: 1.3 g: 100-110 g.

[0027] The beneficial effects of the present application are as follows:

[0028] 1) The present application uses propylene glycol, glycerol, sodium polyacrylate particles, modified hydroxyethyl cellulose, phenoxyethanol and aloe vera juice as raw materials to prepare a liquid material for reducing air suspended matter, which is non-toxic, non-irritating, non-flammable, and has little impact on the environment.

[0029] 2) The present application takes 2-(2-aminoethyl)pyridine, formaldehyde, m-benzene triol as raw materials, and an intermediate 1 is obtained by Mannich condensation reaction, and the intermediate 1 and brominated dodecane are used to generate quaternary ammonium saltization reaction to obtain an intermediate 2, and the intermediate 2 is grafted on hydroxyethyl cellulose by using malonyl chloride as a bridge connection and ethylenediamine as an acid binding agent to obtain modified hydroxyethyl cellulose, and the hydroxyethyl cellulose is a good thickening agent, the modified hydroxyethyl cellulose is modified by grafting, the intermediate 2 has the characteristics of cationic quaternary ammonium salt type gemini surfactant, contains pyridine group quaternary ammonium salt in the structure, can play an antibacterial performance, contains hydrophilic groups (-OH, quaternary ammonium salt structure) and lipophilic groups (alkyl long chain), can be oriented on the solution surface, so that the tension of the gas-liquid interface is reduced, and the surface activity is shown, has a solubilizing effect, the benzoxazine compound has excellent heat resistance and flame retardance, the phenolic hydroxyl group can play an antioxidant effect, the finally synthesized modified hydroxyethyl cellulose added into a liquid material can not only synergistically act with phenoxyethanol to play a better antibacterial effect, but also has a compatibilizing effect to make the components in the system more uniformly mixed, in addition, has a certain antioxidant effect, reduces the loss during liquid storage, and has a flame retardance, can prevent the combustion of flammable propylene glycol substances from being dangerous;

[0030] 3) The liquid material of the present application has good fly-fuzz inhibition effect, the material itself is non-toxic and has no side effects, and will not cause harm to the human body, due to the addition of the modified hydroxyethyl cellulose, the bacteria carried in the fly-fuzz can be effectively killed, and the environmental impact is small, the mother liquor is easy to store, and has a very broad application prospect. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Embodiment 1

[0033] A modified hydroxyethyl cellulose is prepared by the following steps:

[0034] Step 1, 12.6g of m-benzene triol and 156.3g of formaldehyde ethyl ether solution are added to a container, stirred, after the m-benzene triol is completely dissolved, 11.5g of 2-(2-aminoethyl)pyridine is added, then reacted at 90℃ for 4h, after the reaction is completed, deionized water is added for washing, the organic layer is separated by a separating funnel, and then rotary evaporation is performed to obtain an intermediate 1, wherein the formaldehyde ethyl ether solution is prepared by 6.3g of formaldehyde and 150g of ethyl ether;

[0035] Step 2, 23 g of intermediate 1 and 45 g of bromododecane were added to a vessel, stirred, and reacted at a temperature of 60 °C for 5 h. After the reaction was completed, the reaction product was transferred to ice water, vacuum filtered, and the filter cake was recrystallized with acetone and dried to obtain intermediate 2.

[0036] Step 3, 15 g of hydroxyethyl cellulose, 1.1 g of triethylamine, 1.3 g of malonyl chloride, and 100 g of DMF were added to a vessel, stirred, and 57.7 g of a DMF solution of intermediate 2 was added to the vessel. After the addition was completed, the reaction was performed at a temperature of 40 °C for 1 h. After the reaction was completed, ice water was added to the vessel, the organic layer was separated, and vacuum dried after rotary evaporation to obtain modified hydroxyethyl cellulose, wherein the DMF solution of intermediate 2 was prepared by using 7.7 g of intermediate 2 and 50 g of DMF.

[0037] Example 2

[0038] A modified hydroxyethyl cellulose was prepared by the following steps:

[0039] Step 1, 12.6 g of phloroglucinol and 156.6 g of a formaldehyde ethyl ether solution were added to a vessel, stirred, and 11.8 g of 2-(2-aminoethyl)pyridine was added thereto after the phloroglucinol was completely dissolved. Then, the reaction was performed at a temperature of 100 °C for 4 h. After the reaction was completed, deionized water was added for washing, the organic layer was separated using a separatory funnel, and rotary evaporation was performed to obtain intermediate 1, wherein the formaldehyde ethyl ether solution was prepared by using 6.6 g of formaldehyde and 150 g of ethyl ether.

[0040] Step 2, 23.6 g of intermediate 1 and 46 g of bromododecane were added to a vessel, stirred, and reacted at a temperature of 60 °C for 5 h. After the reaction was completed, the reaction product was transferred to ice water, vacuum filtered, and the filter cake was recrystallized with acetone and dried to obtain intermediate 2.

[0041] Step 3, 15 g of hydroxyethyl cellulose, 1.2 g of triethylamine, 1.3 g of malonyl chloride, and 105 g of DMF were added to a vessel, stirred, and 57.7 g of a DMF solution of intermediate 2 was added to the vessel. After the addition was completed, the reaction was performed at a temperature of 45 °C for 1.25 h. After the reaction was completed, ice water was added to the vessel, the organic layer was separated, and vacuum dried after rotary evaporation to obtain modified hydroxyethyl cellulose, wherein the DMF solution of intermediate 2 was prepared by using 7.7 g of intermediate 2 and 50 g of DMF.

[0042] Example 3

[0043] A modified hydroxyethyl cellulose was prepared by the following steps:

[0044] Step 1, 12.6 g of phloroglucinol and 156.9 g of formaldehyde ethyl ether solution were added into a container, stirred, after the phloroglucinol was completely dissolved, 12.2 g of 2-(2-aminoethyl)pyridine was added, then reacted at 110℃ for 4 h, after the reaction was completed, deionized water was added for washing, the organic layer was separated by a separatory funnel, then rotary evaporation was performed to obtain intermediate 1, wherein the formaldehyde ethyl ether solution was prepared from 6.9 g of formaldehyde and 150 g of ethyl ether;

[0045] Step 2, 24.3 g of intermediate 1 and 47 g of bromododecane were added into a container, stirred, reacted at 60℃ for 5 h, after the reaction was completed, the reaction product was transferred into ice water, vacuum filtration was performed, the filter cake was recrystallized with acetone, then dried to obtain intermediate 2;

[0046] Step 3, 15 g of hydroxyethyl cellulose, 1.3 g of triethylamine, 1.3 g of malonyl chloride and 110 g of DMF were added into a container, stirred, 57.7 g of a DMF solution of intermediate 2 was added into the container, after the dropwise addition was completed, reacted at 50℃ for 1.5 h, after the reaction was completed, ice water was added into the container, the organic layer was separated, then rotary evaporation was performed, followed by vacuum drying to obtain modified hydroxyethyl cellulose, wherein the DMF solution of intermediate 2 was prepared from 7.7 g of intermediate 2 and 50 g of DMF.

[0047] Comparative Example 1

[0048] The hydroxyethyl cellulose in this comparative example was sold by Feicheng Yutian Chemical Co., Ltd.

[0049] The reagents in Examples 1-3 and Comparative Example 1 were subjected to performance testing:

[0050] Surface tension γ cmc and critical micelle concentration determination: the surface tension was determined by the hanging piece method;

[0051] The specific experimental steps were as follows: a series of surfactant solutions with different concentrations and including the critical micelle concentration were prepared and kept under constant temperature conditions; the hanging piece was cleaned with deionized water, then heated to incandescence by an alcohol lamp to remove surface impurities; the instrument was adjusted to be horizontal; after the cooled hanging piece was loaded, the surface tension of the solution was determined by using a surface tension instrument, and the test data was recorded; then a curve with the surface tension as the ordinate and the logarithm of the solution concentration as the abscissa was drawn, and the singular point on the curve was the critical micelle concentration cmc value, and the surface tension at the point was the γcmc value;

[0052] Antibacterial performance: the E. coli and S. aureus inhibition rates were tested in accordance with the standard QB / T 2850-2007;

[0053] The test results are shown in Table 1:

[0054] Table 1

[0055]

[0056] As can be seen from Table 1, the critical micelle concentration of the synergist of Examples 1-3 is much lower than that of Comparative Example 1, and the surface tension is smaller, which indicates that the modified hydroxyethyl cellulose of the present application has good solubilizing performance and high antibacterial performance.

[0057] Example 4

[0058] A liquid material for reducing the amount of airborne suspended matter, comprising the following raw materials in mass fraction: 6.8 parts of propylene glycol, 4.8 parts of glycerol, 0.088 parts of sodium polyacrylate, 0.52 parts of modified hydroxyethyl cellulose, 0.35 parts of phenoxy ethanol, and the rest is aloe vera juice;

[0059] A method for preparing a liquid material for reducing the amount of airborne suspended matter, comprising the following steps:

[0060] In the first step, glycerol and propylene glycol are dissolved in purified water, mixed and stirred, and then left to stand for one hour. The mass fraction of propylene glycol in the obtained liquid 1 is 17%, and the mass fraction of glycerol is 12%.

[0061] In the second step, the liquid 1 is heated to 40℃, and sodium polyacrylate particles are introduced into it. After continuous stirring until the sodium polyacrylate particles are completely swollen and suspended, the liquid is left to stand for 4 hours to allow it to slowly dissolve, and then stirred again. After standing for 30 minutes, the liquid 2 is obtained, and the mass fraction of sodium polyacrylate particles in the liquid 2 is 2.2 ‰.

[0062] In the third step, purified water is cooled to 0℃, and modified hydroxyethyl cellulose is added. After continuous stirring to form a porridge-like substance, the liquid 3 is obtained, and the mass ratio of purified water to modified hydroxyethyl cellulose is 6:1.

[0063] In the fourth step, the liquid 3 and the liquid 2 are mixed in a mass fraction of 1:11, and phenoxy ethanol is added. After continuous stirring until all are dissolved and uniform, the mother liquor is obtained.

[0064] In the fifth step, the mother liquor, aloe vera juice, and purified water are mixed in a mass fraction of 1:2:4, and stirred quickly and uniformly to obtain the liquid material.

[0065] Example 5

[0066] A liquid material for reducing the amount of airborne suspended matter, comprising the following raw materials in mass fraction: 6.8 parts of propylene glycol, 4.8 parts of glycerol, 0.088 parts of sodium polyacrylate, 0.52 parts of modified hydroxyethyl cellulose, 0.35 parts of phenoxy ethanol, and the rest is aloe vera juice;

[0067] A method for preparing a liquid material for reducing the amount of airborne suspended matter, comprising the following steps:

[0068] Firstly, glycerol and propylene glycol were dissolved in purified water, mixed and stirred, and then left to stand for one hour to obtain liquid 1, the mass fraction of propylene glycol in liquid 1 being 17%, and the mass fraction of glycerol being 12%;

[0069] Secondly, liquid 1 was heated to 40℃, and sodium polyacrylate particles were introduced into liquid 1, and then stirred until the sodium polyacrylate particles were completely swollen and suspended, and then left to stand for 4 hours to wait for slow dissolution, and then stirred again, and then left to stand for 30 minutes to obtain liquid 2, the mass fraction of sodium polyacrylate particles in liquid 2 being 2.2 ‰;

[0070] Thirdly, purified water was cooled to 0℃, and modified hydroxyethyl cellulose was added, and then stirred to form a porridge, to obtain liquid 3, the mass ratio of purified water to modified hydroxyethyl cellulose being 6:1;

[0071] Fourthly, liquid 3 and liquid 2 were mixed according to a mass fraction of 1:11, and then phenoxyethanol was added, and then stirred until completely dissolved and uniform, to obtain a mother liquor;

[0072] Fifthly, the mother liquor, aloe vera juice, and purified water were mixed according to a mass fraction of 1:2:4, and then quickly stirred to be uniform, to obtain the liquid material.

[0073] Example 6

[0074] A liquid material for reducing the amount of airborne suspended matter, comprising the following raw materials in mass fractions: 7.2 parts of propylene glycol, 5.2 parts of glycerol, 0.1 part of sodium polyacrylate, 0.54 parts of modified hydroxyethyl cellulose, 0.42 parts of phenoxyethanol, and the rest being aloe vera juice;

[0075] A method for preparing a liquid material for reducing the amount of airborne suspended matter, comprising the following steps:

[0076] Firstly, glycerol and propylene glycol were dissolved in purified water, mixed and stirred, and then left to stand for one hour to obtain liquid 1, the mass fraction of propylene glycol in liquid 1 being 17%, and the mass fraction of glycerol being 12%;

[0077] Secondly, liquid 1 was heated to 40℃, and sodium polyacrylate particles were introduced into liquid 1, and then stirred until the sodium polyacrylate particles were completely swollen and suspended, and then left to stand for 4 hours to wait for slow dissolution, and then stirred again, and then left to stand for 30 minutes to obtain liquid 2, the mass fraction of sodium polyacrylate particles in liquid 2 being 2.2 ‰;

[0078] Thirdly, purified water was cooled to 0℃, and modified hydroxyethyl cellulose was added, and then stirred to form a porridge, to obtain liquid 3, the mass ratio of purified water to modified hydroxyethyl cellulose being 6:1;

[0079] Fourth step: Mix liquid 3 and liquid 2 at a mass ratio of 1:11, add phenoxyethanol, and continue stirring until completely dissolved and homogeneous to obtain the mother liquor;

[0080] Fifth step: Mix the mother liquor, aloe vera juice, and purified water in a mass ratio of 1:2:4, and stir quickly until homogeneous to obtain the liquid material.

[0081] Experimental Example 1

[0082] Take two equal amounts of fluff and place them on adjacent leaves. Spray one part with the liquid material obtained in Example 4, and spray the other part with an equal amount of purified water as a blank control.

[0083] After one hour, the condition of the flying fluff was observed. It was found that the flying fluff after spraying the liquid material obtained in Example 4 remained almost unchanged, while the flying fluff after spraying pure water had begun to disperse.

[0084] After being left for about 16 hours, the fluff from the final spray of Example 4 still did not disperse, while the fluff from the spray of pure water had been blown away by the wind.

[0085] Experimental Example 2

[0086] Prepare two equal amounts of flying fluff and spread them flat on an open ground. Spray one portion with the liquid material obtained in Example 5, and spray the other portion with an equal amount of purified water as a blank control.

[0087] After one hour, it was found that the thickness of the fluff clumps sprayed in Example 5 increased, but the shape did not change. The thickness of the fluff clumps sprayed with pure water decreased, and the fluff clumps at the edges had been blown away.

[0088] After being left to stand for about 16 hours, the thickness of the fluff from the final spray of Example 5 increased again, and the shape became larger, forming a thick clump. The fluff sprayed with pure water had loosened and was still blown away.

[0089] Experimental Example 3

[0090] Prepare two equal portions of the squeezed fluff clumps and place them on an open ground. Spray one portion with the liquid material obtained in Example 6, and spray the other portion with an equal amount of purified water as a blank control.

[0091] After one hour, both clumps of fluff had dried. The fluff clump sprayed with Example 6 was not sticky, while the fluff sprayed with purified water was sticky and might stick to pedestrians.

[0092] After about 16 hours, the fluff clumps that were sprayed in Example 6 were still present, while the fluff clumps that were sprayed with pure water had been blown away by the wind.

[0093] It can be seen from the test example 1-3 that the liquid material has good inhibition effect on the flying floss, the flying floss after spraying is not easy to be blown away by the wind, is not easy to stick, and will not affect the pedestrians, and the liquid material can play a good effect on the vegetation and the ground, so it has broad application prospect.

[0094] The above is only an example and description of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as it does not deviate from the invention or exceed the scope defined by the present claims, which shall belong to the protection scope of the present application.

Claims

1. A liquid material for reducing the amount of airborne aerosols, characterized in that, The raw materials include the following quality parts: 6.8-7.2 parts of propylene glycol, 4.8-5.2 parts of glycerol, 0.088-0.1 parts of sodium polyacrylate, 0.52-0.54 parts of modified hydroxyethyl cellulose, 0.35-0.42 parts of phenoxy ethanol, and the rest is aloe vera juice; Wherein, the modified hydroxyethyl cellulose is made by the following steps: Step 1, add the ethyl ether solution of phloroglucinol and formaldehyde into the container, stir, after the phloroglucinol is completely dissolved, add 2-(2-aminoethyl) pyridine into the container, then react at 90-110℃ for 4h to obtain intermediate 1; Step 2, add intermediate 1 and bromododecane into the container, stir, react at 60℃ for 5h to obtain intermediate 2; Step 3, add hydroxyethyl cellulose, triethylamine, malonyl chloride and DMF into the container, stir, add the DMF solution of intermediate 2 into the container, after the dropwise addition is completed, react at 40-50℃ for 1-1.5h to obtain the modified hydroxyethyl cellulose; The intermediate 1 is obtained by Mannich condensation reaction using 2-(2-aminoethyl) pyridine, formaldehyde and phloroglucinol as raw materials, the intermediate 2 is obtained by quaternary ammonium salt reaction using the intermediate 1 and bromododecane, the modified hydroxyethyl cellulose is obtained by grafting the intermediate 2 on the hydroxyethyl cellulose using malonyl chloride as the bridge and ethylenediamine as the acid binding agent, the intermediate 2 has the characteristics of cationic quaternary ammonium salt type gemini surfactant, contains pyridine group quaternary ammonium salt in the structure, contains hydrophilic group and lipophilic group, and can orient on the solution surface to reduce the tension of gas-liquid interface.

2. The liquid material for reducing airborne particulate matter according to claim 1, wherein, The ethyl ether solution of formaldehyde in step 1 is configured by 0.21-0.23mol of formaldehyde and 150g of ethyl ether, and the DMF solution of intermediate 2 in step 3 is configured by 7.7g of intermediate 2 and 50g of DMF.

3. The liquid material of claim 1, wherein, The amount of phloroglucinol and 2-(2-aminoethyl) pyridine used in step 1 is 12.6g: 11.5g-12.2g.

4. The liquid material of claim 1, wherein, The amount of intermediate 1 and bromododecane used in step 2 is 23-24.3g: 45-47g.

5. The liquid material of claim 1, wherein, The amount of hydroxyethyl cellulose, triethylamine, malonyl chloride and DMF used in step 3 is 15g: 1.1-1.3g: 1.3g: 100-110g.

6. A method of preparing a liquid material having a reduced amount of airborne aerosol according to any one of claims 1 to 5, characterized in that The method comprises the following steps: First step, dissolve glycerol and propylene glycol in pure water, mix and stir, then stand for one hour to obtain liquid 1; Second step, heat liquid 1 to 40℃, then introduce sodium polyacrylate particles into it, continuously stir until the sodium polyacrylate particles are completely swollen and suspended, then stand for 4h to slowly dissolve, stir again, then stand for 30min to obtain liquid 2; Third step, cool pure water to 0℃, then add modified hydroxyethyl cellulose, continuously stir to form a porridge, to obtain liquid 3; Fourth step, mix liquid 3 and liquid 2, then add phenoxy ethanol into it, continuously stir until it is completely dissolved and uniform, to obtain the mother liquor; Fifth step, mix the mother liquor, aloe vera juice and pure water, quickly stir until they are uniform, to obtain the liquid material.

7. A method of preparing a liquid material having a reduced amount of airborne aerosol according to claim 6, wherein The mass fraction of propylene glycol in the liquid 1 of the first step is 17%, the mass fraction of glycerol is 12%, and the mass fraction of sodium polyacrylate particles in the liquid 2 of the second step is 2.2 ‰.

8. The method of claim 7, wherein the liquid material is prepared by adding the dispersant to the liquid material. The mass ratio of pure water to modified hydroxyethyl cellulose in the third step is 6:

1.

9. The method of claim 7, wherein the liquid material is prepared by adding the dispersant to the liquid material. The mass ratio of liquid 3 to liquid 2 in the fourth step is 1:

11.

10. The method of claim 7, wherein the liquid material is prepared by adding the dispersant to the liquid material. The mass ratio of mother liquor, aloe vera juice, and pure water in the fifth step is 1:2:4.

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