Cationic antistatic agent containing hydroxyl and ether bond and preparation method thereof

Abstract

The invention provides a cationic antistatic agent containing hydroxyl and ether bonds and a preparation method thereof, and belongs to the technical field of cationic antistatic agents. The preparation method comprises the following steps: carrying out neutralization reaction on amine substances and acid in a solvent to obtain an intermediate product; and reacting the intermediate product with glycidyl ether under the action of a catalyst to obtain the cationic antistatic agent. According to the prepared cationic antistatic agent, hydroxyl and ether bonds are introduced into the molecular structure, the hygroscopicity of the antistatic agent can be remarkably improved due to the existence of the hydroxyl, a conductive water film is formed, and therefore the conductivity and the antistatic performance of the surface of a material are enhanced; ether bonds can be combined with water molecules in air through hydrogen bonds to form a conductive channel, so that the antistatic effect is further improved. The antistatic agent prepared by the invention not only has excellent antistatic property, but also shows good smoothness, softness, water cleaning property, washing resistance and compatibility, and is suitable for various application scenes needing antistatic treatment.

Description

Technical Field

[0001] The invention relates to the technical field of cationic antistatic agents, in particular to a cationic antistatic agent containing a hydroxyl group and an ether bond and a preparation method thereof. Background Art

[0002] In modern life and industrial production, the generation of static electricity is a common and unavoidable problem. When two materials come into contact with each other and rub against each other, one material loses electrons and the other gains electrons, resulting in the former being positively charged and the latter being negatively charged. If these charges cannot be dissipated in time, an electrostatic field will form on the surface of the material, generating static electricity. Static electricity not only causes inconvenience in daily life, such as clothes and hair absorbing bacteria in the air due to static electricity, but also in industrial production, the accumulation of static electricity may cause a series of safety issues and product quality problems. In order to solve the problem of static electricity, antistatic agents have gradually become important application materials.

[0003] The working principle of antistatic agent is to eliminate static electricity accumulation by reducing the resistance of the material surface. Antistatic agent molecules usually contain hydrophobic chains and hydrophilic groups, in which the hydrophobic chains are adsorbed on the surface of the material to form a continuous adsorption film, while the hydrophilic groups face the air. The hydroxyl groups (-OH) contained in these hydrophilic groups can form hydrogen bonds with water molecules in the air to generate a water film with good conductivity, thereby effectively enhancing the conductivity of the material surface, promoting the dissipation of charge, and reducing static electricity accumulation.

[0004] At present, there are many methods for preparing antistatic agents. For example, in the Chinese invention patent application with application number 201210265431.1, tertiary amines are obtained by reacting alkyl primary amines with formic acid and formaldehyde in a solvent, and then reacting with dimethyl sulfate or diethyl sulfate to prepare a cationic antistatic agent; in another example, in the Chinese invention patent with application number 202110743029.9, the raw materials are composed of fatty acids, triethanolamine, catalysts, dimethyl sulfate and isopropanol, and are prepared by addition reaction and quaternization reaction. Although there are many types and preparation methods of antistatic agents on the market, there are still problems such as insufficient antistatic effect and poor water washability in practical applications. The antistatic agents prepared by these methods still have deficiencies in molecular structure design, especially in the balance and optimization of hydroxyl and ether bonds, which still have a lot of room for improvement.

[0005] The number and position of hydroxyl groups in the antistatic agent molecule have a direct impact on its antistatic performance. More hydroxyl groups help to form more hydrogen bonds, increase the hygroscopicity of the material surface, and thus improve the conductivity and antistatic effect. However, too many hydroxyl groups may also cause excessive hygroscopicity of the material, affecting its mechanical properties and stability. Therefore, when designing antistatic agents, it is crucial to reasonably adjust the number and distribution of hydroxyl groups. In addition, the ether bond (-O-) in the antistatic agent molecule also plays an important role in the antistatic performance. Ether bonds can further establish conductive channels and enhance the conductivity of the material surface by forming hydrogen bonds with water molecules in the air. However, the introduction of ether bonds also needs to balance their interaction with hydroxyl groups to avoid affecting the stability and durability of the antistatic agent due to excessive hygroscopicity.

[0006] Therefore, it is very important to provide a cationic antistatic agent containing different numbers of hydroxyl groups and ether bonds to improve the antistatic performance while taking into account stability and water washability, thereby meeting higher application requirements. Summary of the invention

[0007] The object of the present invention is to provide a cationic antistatic agent containing hydroxyl groups and ether bonds and a preparation method thereof, so as to solve the technical problem in the prior art that the conductivity, stability and durability of the antistatic agent are poor due to the number and position of the hydroxyl groups and ether bonds.

[0008] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0009] The present invention provides a cationic antistatic agent containing a hydroxyl group and an ether bond, and the structural formula of the cationic antistatic agent is:

[0010]

[0011] wherein n is 6, 8, 10, 12, 14, 16, 18 or 20;

[0012] R 1 , R 2 , R 3 Independent for CH 3 , CH 3 CH 2 , CH 3 CH 2 CH 2 or CH 2 CH 2 OH;

[0013] X is Cl - Br - , ClO 3 - HCOO - , CH 3 COO- or CH 3 CH 2 COO - .

[0014] The present invention provides a method for preparing a cationic antistatic agent containing a hydroxyl group and an ether bond, comprising the following steps:

[0015] (1) neutralizing an amine substance and an acid in a solvent to obtain an intermediate product;

[0016] (2) reacting the intermediate product with glycidyl ether in the presence of a catalyst to obtain a cationic antistatic agent.

[0017] Furthermore, the amine substance comprises one or more of dimethylethanolamine, methyldiethanolamine, trimethylamine, triethanolamine, ethyldiethanolamine, diethylethanolamine, propyldiethanolamine and dipropylethanolamine.

[0018] Further, the solvent comprises one or more of isopropanol, n-propanol, ethanol, n-butanol, ethylene glycol, propylene glycol and water;

[0019] The acid comprises one or more of hydrochloric acid, hydrobromic acid, chloric acid, formic acid, acetic acid and propionic acid.

[0020] Further, the structural formula of the glycidyl ether is:

[0021]

[0022] wherein n is 6, 8, 10, 12, 14, 16, 18 or 20.

[0023] Furthermore, the molar ratio of the amine substance, the acid and the glycidyl ether is 1:1-2:1-2;

[0024] The mass fraction of the solvent in the cationic antistatic agent is 10 to 50%.

[0025] Furthermore, the catalyst is a solid acid catalyst, and the catalyst comprises a carrier and an active component;

[0026] The support comprises SiO 2 、TiO 2 、Al 2 O 3 , one or more of glass fiber mesh, hollow ceramic balls, sea sand, multi-level pore I molecular sieve, multi-level pore HZSM-5 molecular sieve and mesoporous SBA-15 molecular sieve;

[0027] The active component comprises one or more of zirconium sulfate, phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, silicomolybdic acid, germanotungstic acid and germanomolybdic acid.

[0028] Furthermore, the mass of the catalyst is 0.1 to 1.5 wt% of the total mass of the amine substance, the acid and the glycidyl ether;

[0029] The mass ratio of the active component to the catalyst is 5 to 25:100.

[0030] Furthermore, the temperature of the neutralization reaction is 30 to 70° C., and the time of the neutralization reaction is 30 to 60 minutes.

[0031] Furthermore, in the step (2), the reaction temperature is 50 to 180° C., and the reaction time is 4 to 20 hours.

[0032] Beneficial effects of the present invention:

[0033] (1) The present invention uses amine substances, glycidyl ether and acid as raw materials, and synthesizes cationic antistatic agents containing different numbers of hydroxyl groups through reaction, and improves the reaction yield by adjusting the reaction temperature, reaction time, raw material ratio and catalyst;

[0034] (2) The cationic antistatic agent prepared by the present invention has better antistatic, antibacterial and emulsifying properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The NMR of the cationic antistatic agent prepared in Example 1 1 HNMR spectrum;

[0036] Figure 2 The NMR of the cationic antistatic agent prepared in Example 3 1 HNMR spectrum. DETAILED DESCRIPTION

[0037] The present invention provides a cationic antistatic agent containing a hydroxyl group and an ether bond, and the structural formula of the cationic antistatic agent is:

[0038]

[0039] wherein n is 6, 8, 10, 12, 14, 16, 18 or 20;

[0040] R 1 , R 2 , R 3 Independent for CH 3 , CH 3 CH 2 , CH 3 CH 2 CH 2 or CH 2 CH 2 OH;

[0041] X is Cl - Br - , ClO 3 - 、HCOO-、CH 3 COO- or CH 3 CH 2 COO-.

[0042] The present invention provides a method for preparing a cationic antistatic agent containing a hydroxyl group and an ether bond, comprising the following steps:

[0043] (1) neutralizing an amine substance and an acid in a solvent to obtain an intermediate product;

[0044] (2) reacting the intermediate product with glycidyl ether in the presence of a catalyst to obtain a cationic antistatic agent.

[0045] In the present invention, the amine substance comprises one or more of dimethylethanolamine, methyldiethanolamine, trimethylamine, triethanolamine, ethyldiethanolamine, diethylethanolamine, propyldiethanolamine and dipropylethanolamine, preferably one or more of dimethylethanolamine, methyldiethanolamine, trimethylamine, ethyldiethanolamine, diethylethanolamine and propyldiethanolamine, further preferably one or more of dimethylethanolamine, methyldiethanolamine, trimethylamine, ethyldiethanolamine and propyldiethanolamine.

[0046] In the present invention, the solvent comprises one or more of isopropanol, n-propanol, ethanol, n-butanol, ethylene glycol, propylene glycol and water, preferably one or more of isopropanol, ethanol, ethylene glycol, propylene glycol and water, and further preferably one or more of isopropanol, ethanol and water;

[0047] The acid includes one or more of hydrochloric acid, hydrobromic acid, chloric acid, formic acid, acetic acid and propionic acid, preferably one or more of hydrochloric acid, formic acid, acetic acid and propionic acid, and more preferably one or more of hydrochloric acid, acetic acid and propionic acid.

[0048] In the present invention, the structural formula of the glycidyl ether is:

[0049]

[0050] Among them, n is 6, 8, 10, 12, 14, 16, 18 or 20, preferably 10, 12, 14, 16, 18 or 20, and more preferably 12, 14, 16, 18 or 20.

[0051] In the present invention, the molar ratio of the amine substance, the acid and the glycidyl ether is 1:1-2:1-2, preferably 1:1.05-1.86:1.05-1.85, and more preferably 1:1.08-1.5:1.1-1.5;

[0052] The mass fraction of the solvent in the cationic antistatic agent is 10 to 50%, preferably 15 to 45%, and more preferably 20 to 40%.

[0053] In the present invention, the catalyst is a solid acid catalyst, and the catalyst comprises a carrier and an active component;

[0054] The support comprises SiO 2 、TiO 2 、Al 2 O 3 , glass fiber net, hollow ceramic balls, sea sand, multi-level pore I molecular sieve, multi-level pore HZSM-5 molecular sieve and mesoporous SBA-15 molecular sieve, one or more, preferably SiO 2 、TiO 2 、Al 2 O 3 , glass fiber mesh, multi-level pore I molecular sieve, multi-level pore HZSM-5 molecular sieve and mesoporous SBA-15 molecular sieve, one or more of which is more preferably SiO 2 、TiO 2 , one or more of multi-level pore I molecular sieve, multi-level pore HZSM-5 molecular sieve and mesoporous SBA-15 molecular sieve;

[0055] The active component comprises one or more of zirconium sulfate, phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, silicomolybdic acid, germanotungstic acid and germanomolybdic acid, preferably one or more of zirconium sulfate, phosphotungstic acid, silicotungstic acid, silicomolybdic acid, germanotungstic acid and germanomolybdic acid, further preferably one or more of zirconium sulfate, phosphotungstic acid, silicomolybdic acid, germanotungstic acid and germanomolybdic acid.

[0056] In the present invention, the mass of the catalyst is 0.1 to 1.5 wt % of the total mass of the amine substance, the acid and the glycidyl ether, preferably 0.4 to 1.0 wt %, and more preferably 0.5 to 0.9 wt %;

[0057] The mass ratio of the active component to the catalyst is 5 to 25:100, preferably 6 to 26:80, and more preferably 10 to 30:70.

[0058] In the present invention, the acid is preferably added dropwise to the amine substance, and stirring is performed during the dropping process;

[0059] The stirring speed is 150-300 r / min, preferably 200-280 r / min, and more preferably 240-260 r / min;

[0060] The acid is added dropwise for 20 to 50 min, preferably 30 to 45 min, and more preferably 35 to 40 min.

[0061] In the present invention, the neutralization reaction temperature is 30-70°C, preferably 32-65°C, and more preferably 35-60°C; the neutralization reaction time is 30-60 min, preferably 40-50 min, and more preferably 45-50 min.

[0062] In the present invention, whether the acid neutralization reaction is completed is judged by measuring the free amine. The specific method is: take neutral ethanol and add bromocresol green methyl red indicator dropwise. At this time, the solution is green. When the sample is added, the solution changes from green to wine red, indicating that there is no free amine and the reaction is completed.

[0063] In the present invention, in the step (2), the reaction temperature is 50 to 180° C., preferably 55 to 175° C., and more preferably 60 to 160° C.; the reaction time is 4 to 20 h, preferably 4.5 to 17 h, and more preferably 5 to 15 h.

[0064] In the present invention, the chemical formula of the reaction is:

[0065]

[0066] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0067] Example 1

[0068] Dissolve trimethylamine in a solvent (the solvent is water and isopropanol, and the mass fraction of the solvent in the cationic antistatic agent is 30%), and then add hydrochloric acid dropwise to the mixed solution, and the addition is completed within 40 minutes. Then react at 30°C for 30 minutes. The reaction is carried out under stirring at a speed of 250r / min. Measure the free amine to determine whether the reaction is complete. After the reaction is completed, add dodecyl glycidyl ether in the presence of a catalyst (the catalyst carrier is a multi-level pore HZSM-5 molecular sieve, and the active component is phosphotungstic acid) and react for 5 hours. The reaction temperature is 60°C, and the molar ratio of trimethylamine, hydrochloric acid and dodecyl glycidyl ether is 1:1:1.05. The mass of the catalyst is 0.5wt% of the total mass of the amine substance, acid and glycidyl ether. N-(dodecyloxy-2-hydroxypropyl)-trimethylammonium chloride is obtained, and the structural formula is:

[0069]

[0070] The cationic antistatic agent prepared in Example 1 was subjected to nuclear magnetic resonance spectrum analysis. N-(dodecyloxy-2-hydroxypropyl)-trimethylammonium chloride was dissolved in DMSO and the nuclear magnetic resonance spectrum was measured. 1 HNMR spectrum Figure 1 As shown. Figure 1 It can be seen that 0.81 (t, 3H, -CH 3 -O-,), 1.19-1.22(m, -(CH 2 ) 9 -,.), 4.60-5.20 (m, -OH). From the analysis of the data processed by the spectrum, it can be seen that the final product is consistent with the designed target product.

[0071] Example 2

[0072] Dissolve dimethylethanolamine in a solvent (the solvent is water and isopropanol, and the mass fraction of the solvent in the cationic antistatic agent is 30%), and then add hydrochloric acid dropwise to the mixed solution, and the addition is completed within 40 minutes. Then react at 40°C for 40 minutes. The reaction is carried out under stirring at a speed of 250r / min. The free amine is measured to determine whether the reaction is complete. After the reaction is completed, add dodecyl glycidyl ether in the presence of a catalyst (the catalyst carrier is a multi-level pore HZSM-5 molecular sieve, and the active component is phosphotungstic acid) to react for 6 hours. The reaction temperature is 100°C, and the molar ratio of dimethylethanolamine, hydrochloric acid and dodecyl glycidyl ether is 1:1.02:1.1. The mass of the catalyst is 1wt% of the total mass of the amine substance, acid and glycidyl ether to obtain N-(dodecyloxy-2-hydroxypropyl)-dimethylhydroxyethyl ammonium chloride, the structural formula of which is:

[0073]

[0074] Example 3

[0075] Dissolve methyldiethanolamine in a solvent (the solvent is water and isopropanol, and the mass fraction of the solvent in the cationic antistatic agent is 30%), and then add hydrochloric acid dropwise to the mixed solution, and the addition is completed within 40 minutes. Then react at 40°C for 50 minutes. The reaction is carried out under stirring at a speed of 250 r / min. The free amine is measured to determine whether the reaction is complete. After the reaction is completed, add dodecyl glycidyl ether in the presence of a catalyst (the catalyst carrier is a multi-level pore HZSM-5 molecular sieve, and the active component is phosphotungstic acid) and react for 12 hours. The reaction temperature is 130°C. The molar ratio of methyldiethanolamine, hydrochloric acid and dodecyl glycidyl ether is 1:1.05:1.2. The mass of the catalyst is 1wt% of the total mass of the amine substance, acid and glycidyl ether to obtain N-(dodecyloxy-2-hydroxypropyl)-methyldihydroxyethyl ammonium chloride, and the structural formula is:

[0076]

[0077] The cationic antistatic agent prepared in Example 3 was subjected to nuclear magnetic resonance spectrum analysis. N-(dodecyloxy-2-hydroxypropyl)-methyldihydroxyethylammonium chloride was dissolved in DMSO and the nuclear magnetic resonance spectrum was measured. 1 HNMR spectrum Figure 2 As shown. Figure 2 It can be seen that 0.81 (t, 3H,.-CH 3 -O-), 1.19-1.20(m, -(CH 2 ) 9 -), 4.00-5.00 (m, -OH and -CH(OH)-). From the analysis of the data processed by the spectrum, it can be seen that the final product is consistent with the designed target product.

[0078] The antistatic property of the cationic antistatic agent prepared in Examples 1 to 3 was measured, and the surface resistance of the cloth was tested using a high resistance meter. The processing steps of the cloth were as follows: cut the polyester cloth into a size of 100mm×100mm, wash it with 45°C soap solution and then dry it. Immerse the cloth in 200mL of a sample solution with a mass concentration of 0.35g / L for 10 minutes, and stir it with a glass rod when appropriate. The treated test pieces were dried and placed in a 45°C oven for 4 hours. Different test pieces were not in contact with each other and were placed in a humidistat at room temperature for more than 15 hours. Use a digital ultra-high resistance meter to measure the surface resistance of the cloth before and after treatment with each sample solution, and calculate the logarithmic decrease in surface resistance ΔlogR by comparing with the blank group. s , in order to evaluate the antistatic properties of different sample solutions. The test results are shown in Table 1. After the treated cloth was repeatedly washed 5 times, the antistatic performance was almost unchanged, and it had good water-washing resistance.

[0079] Table 1 Antistatic properties of antistatic agents of Examples 1 to 3

[0080]

[0081]

[0082] Example 4

[0083] The preparation method is the same as that of Example 3, except that the amine substance used in Example 4 is triethanolamine, and the molar ratio of the amine substance, hydrochloric acid and dodecyl glycidyl ether is 1:1.05:1.25, to obtain N-(dodecyloxy-2-hydroxypropyl)-trihydroxyethylammonium chloride, the structural formula of which is:

[0084]

[0085] Example 5

[0086] Dissolve ethyldiethanolamine in a solvent (the solvent is water and isopropanol, and the mass fraction of the solvent in the cationic antistatic agent is 30%), then add formic acid dropwise to the mixed solution, and complete the addition within 50 minutes. Then react at 50°C for 60 minutes. The reaction is carried out under stirring at a speed of 250 r / min. The free amine is measured to determine whether the reaction is complete. After the reaction is completed, add a catalyst (the catalyst carrier is Al 2 O 3 , the active component is zirconium sulfate), decyl glycidyl ether is added and reacted for 17 hours, the reaction temperature is 170°C, the molar ratio of ethyldiethanolamine, formic acid and decyl glycidyl ether is 1:1.1:1.25, the mass of the catalyst is 1wt% of the total mass of the amine substance, acid and glycidyl ether, and N-(decyloxy-2-hydroxypropyl)-ethyl dihydroxyethyl ammonium formate is obtained, and the structural formula is:

[0087]

[0088] Example 6

[0089] The preparation method is the same as that of Example 5, except that the amine substance used in Example 6 is diethylethanolamine, the acid is acetic acid, the glycidyl ether is octyl glycidyl ether, and the molar ratio of the amine substance, acetic acid and octyl glycidyl ether is 1:1.1:1.25 to obtain N-(octyloxy-2-hydroxypropyl)-diethylhydroxyethyl ammonium acetate, the structural formula is:

[0090]

[0091] Example 7

[0092] The preparation method is the same as that of Example 5, except that the amine substance used in Example 7 is propyl diethanolamine, the acid is propionic acid, the glycidyl ether is dodecyl glycidyl ether, and the molar ratio of the amine substance, propionic acid and dodecyl glycidyl ether is 1:1.15:1.3 to obtain N-(dodecyloxy-2-hydroxypropyl)-propyl dihydroxyethyl ammonium propionate, the structural formula is:

[0093]

[0094] As can be seen from the above embodiments, the present invention provides a cationic antistatic agent containing hydroxyl groups and ether bonds and a preparation method thereof, wherein an intermediate product is obtained by neutralizing an amine substance and an acid in a solvent; the intermediate product and glycidyl ether are reacted under the action of a catalyst to obtain a cationic antistatic agent. The cationic antistatic agent prepared by the present invention introduces hydroxyl groups and ether bonds in the molecular structure. The presence of hydroxyl groups can significantly improve the hygroscopicity of the antistatic agent, forming a conductive water film, thereby enhancing the conductivity and antistatic properties of the material surface; ether bonds can combine with water molecules in the air through hydrogen bonds to form a conductive channel, further enhancing the antistatic effect. The antistatic agent prepared by the present invention not only has excellent antistatic properties, but also exhibits good smoothness, softness, water-clearing properties, water-washing resistance and compatibility, and is suitable for various application scenarios requiring antistatic treatment.

[0095] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cationic antistatic agent containing hydroxyl groups and ether bonds, characterized in that: The structural formula of cationic antistatic agent is: wherein n is 6, 8, 10, 12, 14, 16, 18 or 20; R1, R2, and R3 are independently CH3, CH3CH2, CH3CH2CH2, or CH2CH2OH; X is Cl - Br - 、ClO3 - HCOO - 、CH3COO - or CH3CH2COO - .

2. The method for preparing a cationic antistatic agent containing hydroxyl groups and ether bonds according to claim 1, characterized in that: The following steps are involved: (1) neutralizing an amine substance and an acid in a solvent to obtain an intermediate product; (2) reacting the intermediate product with glycidyl ether in the presence of a catalyst to obtain a cationic antistatic agent.

3. The method for preparing a cationic antistatic agent containing a hydroxyl group and an ether bond according to claim 2, characterized in that: The amine substance comprises one or more of dimethylethanolamine, methyldiethanolamine, trimethylamine, triethanolamine, ethyldiethanolamine, diethylethanolamine, propyldiethanolamine and dipropylethanolamine.

4. The method for preparing a cationic antistatic agent containing a hydroxyl group and an ether bond according to claim 2 or 3, characterized in that: The solvent comprises one or more of isopropanol, n-propanol, ethanol, n-butanol, ethylene glycol, propylene glycol and water; The acid comprises one or more of hydrochloric acid, hydrobromic acid, chloric acid, formic acid, acetic acid and propionic acid.

5. The method for preparing a cationic antistatic agent containing a hydroxyl group and an ether bond according to claim 4, characterized in that: The structural formula of the glycidyl ether is: wherein n is 6, 8, 10, 12, 14, 16, 18 or 20.

6. The method for preparing the cationic antistatic agent containing hydroxyl groups and ether bonds according to claim 2, 3 or 5, characterized in that: The molar ratio of the amine substance, the acid and the glycidyl ether is 1:1-2:1-2; The mass fraction of the solvent in the cationic antistatic agent is 10 to 50%.

7. The method for preparing a cationic antistatic agent containing hydroxyl groups and ether bonds according to claim 6, characterized in that: The catalyst is a solid acid catalyst, and the catalyst comprises a carrier and an active component; The carrier comprises one or more of SiO2, TiO2, Al2O3, glass fiber mesh, hollow ceramic balls, sea sand, multi-level pore I molecular sieve, multi-level pore HZSM-5 molecular sieve and mesoporous SBA-15 molecular sieve; The active component comprises one or more of zirconium sulfate, phosphotungstic acid, phosphomolybdic acid, silicotungstic acid, silicomolybdic acid, germanotungstic acid and germanomolybdic acid.

8. The method for preparing a cationic antistatic agent containing hydroxyl groups and ether bonds according to claim 7, characterized in that: The mass of the catalyst is 0.1 to 1.5 wt% of the total mass of the amine substance, the acid and the glycidyl ether; The mass ratio of the active component to the catalyst is 5 to 25:

100.

9. The method for preparing the cationic antistatic agent containing hydroxyl groups and ether bonds according to claim 7 or 8, characterized in that: The temperature of the neutralization reaction is 30-70° C., and the time of the neutralization reaction is 30-60 minutes.

10. The method for preparing the cationic antistatic agent containing hydroxyl groups and ether bonds according to claim 2, characterized in that: In the step (2), the reaction temperature is 50 to 180° C., and the reaction time is 4 to 20 hours.

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