Boric acid modified ZSM-5 molecular sieve hybrid resin composite material and preparation method thereof

Abstract

The invention relates to the technical field of composite materials, and particularly discloses a boric acid modified ZSM-5 molecular sieve hybrid resin composite material and a preparation method thereof. The preparation method comprises the following steps: synthesizing a ZSM-5 molecular sieve with an MFI topological structure through hydrothermal crystallization, and carrying out boric acid modification; and then, by taking the molecular sieve as a functional auxiliary agent, adding acrylic acid, a cross-linking agent, an initiator and the molecular sieve into a high-pressure reaction kettle, and carrying out polymerization reaction under a nitrogen protection condition to obtain a product, namely the boric acid modified ZSM-5 molecular sieve hybrid resin composite material. The stable framework structure of the molecular sieve at high temperature and high pressure and rich Si-OH hydrophilic groups in pore channels can solve the problems of insufficient gel strength and non-ideal compression resistance and water absorption performance of the traditional super absorbent resin material. Meanwhile, abundant acid sites on the surface of the ZSM-5 molecular sieve modified by boric acid have excellent adsorption capacity on gases such as NH3, so that the technical problem of poor deodorization effect of the traditional water-absorbent resin can be solved, and the ammonia removal and deodorization performance of the super absorbent resin material is further improved.

Description

Technical Field

[0001] This invention belongs to the field of composite material technology, specifically relating to boric acid modified ZSM-5 molecular sieve hybrid resin composite material and its preparation method. Background Technology

[0002] Superabsorbent polymers (SAPs) possess a unique three-dimensional cross-linked network structure, capable of absorbing thousands of times their own weight in aqueous solutions while retaining most of the water within their structure under suitable conditions. They are a class of functional polymer materials that integrate water absorption, water retention, and sustained release. Their high absorbency primarily stems from the numerous hydrophilic functional groups on the polymer chain, such as hydroxyl, carboxyl, and amino groups. Due to their hydrophilic swelling and water retention capabilities, SAPs are currently widely used in hygiene products, agriculture, construction, and biomedicine. In the 1950s, Goodrich first developed cross-linked polyacrylic acid superabsorbent polymers. Since then, researchers have explored their synthetic routes and applications. Compared to traditional absorbent materials such as sponges, silicone, activated carbon, and absorbent cotton, SAP materials offer advantages such as high absorbency, fast absorption rate, strong water retention, moderate price, and good safety performance, making them highly commercially valuable for use in personal care products such as baby and adult diapers. Based on this, many research institutions have focused on improving the water absorption and retention properties of SAP materials. For example, they have used polymer derivatives of acrylic acid (AA), polyacrylic acid (PAA), and acrylamide (AM) to improve the water absorption and retention properties by designing different crosslinking densities of the substrates.

[0003] It is important to note that traditional superabsorbent polymers (such as starch-based, cellulose-based, and synthetic polymer-based resins) typically exhibit low gel strength after absorbing water and salt, with some products even forming flowing gels, limiting their water absorption capacity under pressure. Existing technologies improve the gel strength of polyacrylamide superabsorbent polymers by adding certain amounts of bentonite and kaolin; or by using potassium chloride to control the system viscosity, synthesizing a superabsorbent polymer that can improve the gel strength of the absorbent. While these methods can improve gel strength, the mechanical strength of the aforementioned inorganic powders is low, thus limiting the improvement in gel strength. Furthermore, ammonia absorption is one of the important performance indicators of superabsorbent polymers. Traditional superabsorbent polymer materials use physical adsorption, masking, and other methods to adsorb and fix NH3 molecules, thereby reducing or eliminating odors, or by adding fragrance additives to mask unpleasant smells. However, physical adsorption relies on van der Waals forces, which have weak adsorption energy and are prone to desorption, resulting in unsatisfactory removal effects for ammonia, sulfides, and thiols. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a novel high-efficiency superabsorbent resin composite material that simultaneously satisfies both pressure-boosting and water absorption effects as well as ammonia removal and deodorization effects. This material leverages the skeletal stability of molecular sieves under high temperature and pressure, along with the abundant hydrophilic groups within its pores, to solve the problems of insufficient gel strength and unsatisfactory pressure-resistant water absorption performance in traditional superabsorbent resin materials. Simultaneously, the abundant acidic sites on the surface of the boric acid-modified ZSM-5 molecular sieve exhibit excellent adsorption capacity for gases such as NH3, thus resolving the technical problem of poor deodorization effects in traditional superabsorbent resins, ultimately achieving a simultaneous improvement in both pressure-resistant water absorption and ammonia removal and deodorization performance.

[0005] To achieve the above objectives, the technical solution adopted by this invention is: a method for preparing boric acid-modified ZSM-5 molecular sieve hybrid resin composite material, comprising the following steps: 1) The Na-type ZSM-5 molecular sieve was subjected to ammonium exchange treatment to obtain the H-type ZSM-5 molecular sieve; 2) Boric acid modification of H-type ZSM-5 molecular sieve to obtain boric acid modified ZSM-5 molecular sieve solid; 3) A certain amount of boric acid modified ZSM-5 molecular sieve solid, acrylic acid, initiator, and crosslinking agent are uniformly mixed in deionized water and then subjected to polymerization reaction; 4) Remove the reaction product of the polymerization reaction, wash and dry it to obtain the boric acid modified ZSM-5 molecular sieve hybrid resin composite material.

[0006] As a preferred embodiment of the above technical solution, the ammonium exchange treatment process of the Na-type ZSM-5 molecular sieve includes: adding a certain amount of Na-type ZSM-5 molecular sieve to a 1 mol / L NH4NO3 solution, stirring at 60°C for 6 hours, centrifuging and filtering, washing with water, drying at 80°C, and calcining at 500-600°C for 2-5 hours.

[0007] The preparation process of Na-type ZSM-5 molecular sieve includes: mixing a silicon source, an aluminum source, a template agent, and deionized water, and stirring at room temperature to form a gel precursor; transferring the gel precursor to a reaction vessel for crystallization, filtration, washing, and drying to obtain the Na-type ZSM-5 molecular sieve precursor. The silicon source is at least one of tetraethyl orthosilicate or silica sol, the aluminum source is at least one of sodium aluminate or aluminum hydroxide, and the template agent is tetrapropylammonium hydroxide (TPAOH); the crystallization is carried out at 110-230℃ for 30-120 h.

[0008] As a preferred embodiment of the above technical solution, the silica-alumina ratio of the Na-type ZSM-5 molecular sieve is 30-200.

[0009] As a preferred embodiment of the above technical solution, the boric acid modification process includes: using an equal-volume impregnation method, placing the H-type ZSM-5 molecular sieve into a certain amount of boric acid, and then drying it at 50-100℃ for 5-12 h to obtain boric acid modified ZSM-5 molecular sieve.

[0010] As a preferred embodiment of the above technical solution, the boric acid has a mass fraction of 0.1-5 wt%.

[0011] As a preferred embodiment of the above technical solution, the polymerization reaction in step 3) further includes a certain amount of dispersant, the polymerization reaction is carried out under nitrogen protection, the reaction temperature is 60-80℃, and the reaction time is 2-8 h.

[0012] As a preferred embodiment of the above technical solution, the mass ratio of the boric acid modified molecular sieve, acrylic acid, initiator, and crosslinking agent is 0.5-15:100:0.1-2:0.1-5. The initiator includes one or more of ammonium persulfate, potassium persulfate, hydrogen peroxide, and benzoyl peroxide. The crosslinking agent includes one or more of N,N-dimethylbisacrylamide, N-hydroxymethylpropylene, ethylenediamine, divinylbenzene, and divinyltoluene. The dispersant includes one or more of hexadecyl phosphate, octadecyl phosphate, polyoxyethylene nonylphenol, or triethylene glycol. The dispersant accounts for 1-6 wt% of the total weight of the polymerization reaction materials.

[0013] As a preferred embodiment of the above technical solution, in step 4), the reaction product is cut into thin slices, washed with deionized water, then soaked in anhydrous methanol for 3-6 hours, rinsed with anhydrous ethanol 2-3 times to remove excess methanol, and dried to constant weight to obtain boric acid modified ZSM-5 molecular sieve hybrid resin composite material.

[0014] The boric acid-modified ZSM-5 molecular sieve hybrid resin composite material was prepared by the above-described preparation method.

[0015] The beneficial effects of this invention are: (1) The boric acid modified ZSM-5 molecular sieve hybrid resin composite material prepared by the present invention can provide stable skeleton support for superabsorbent resin, strengthen its gel strength after pressure water absorption, improve the structural stability of superabsorbent resin, and realize the high efficiency of pressure absorption performance of the product.

[0016] (2) The surface of the boric acid modified ZSM-5 molecular sieve has abundant acidic sites. When combined with superabsorbent resin, it can achieve highly selective chemical adsorption of NH3 molecules (alkaline gas), thereby greatly improving the ammonia adsorption performance. This can solve the technical problem that traditional SAP materials have weak ammonia adsorption capacity and unsatisfactory deodorization effect.

[0017] (3) The molecular sieve added to the superabsorbent resin has abundant Si-OH hydrophilic groups on its pore surface, which can selectively confine and fix H2O molecules in the pores, thereby improving the water-locking performance of the superabsorbent resin under pressure.

[0018] (4) The preparation method of the boric acid modified ZSM-5 molecular sieve hybrid resin composite material of the present invention is simple, easy to implement, low in cost, and conducive to industrial production. The product has the advantages of high gel strength, strong resistance to pressure water absorption, and good ammonia removal effect. It can quickly absorb human secretions and has broad application prospects in the field of disposable hygiene products.

[0019] (5) The boric acid modified ZSM-5 molecular sieve hybrid resin composite material of the present invention has a water absorption ratio ≥53 g / g, a pressure absorption of 0.3psi ≥25 g / g, a gel strength of 3000-4000 N / kg, and an ammonia removal rate ≥75%. Attached Figure Description

[0020] Figure 1 The image shows the XRD pattern of the H-type ZSM-5 molecular sieve (H-ZSM-5) obtained in Example 1.

[0021] Figure 2 The N2 physical adsorption / desorption curves of the H-type ZSM-5 molecular sieve obtained in Example 1 are shown.

[0022] Figure 3 The image shows the SEM image of the H-type ZSM-5 molecular sieve obtained in Example 1.

[0023] Figure 4 The figure shows the ammonia temperature-programmed desorption curve (NH3-TPD) of the H-type ZSM-5 molecular sieve obtained in Example 1.

[0024] Figure 5 This is a SEM image of the superabsorbent resin material in Example 1.

[0025] Figure 6 This is a product image of the superabsorbent resin material used in Example 1. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1 (1) Tetraethyl orthosilicate (based on the molar amount of SiO2), sodium aluminate (based on the molar amount of Al2O3), tetrapropylammonium hydroxide, and deionized water were mixed in a molar ratio of n(SiO2):n(Al2O3):n(TPAOH):n(H2O) = 1:0.01:0.4:30 and stirred at room temperature to form a gel precursor. The gel precursor was transferred to a reaction vessel and crystallized at 180°C for 72 h. The solid product was filtered, washed, and dried at 80°C for 12 h to obtain the Na-type ZSM-5 molecular sieve precursor. Subsequently, it was treated with 1 mol / L NH4NO3 solution, stirred at 60°C for 6 hours, centrifuged, filtered, washed with water, dried at 80°C, and calcined at 560°C for 4 h to obtain the H-type ZSM-5 molecular sieve. The XRD pattern of the H-type ZSM-5 molecular sieve is shown below. Figure 1 As shown, the MFI topological structure crystal phase can be identified from the diffraction peaks of the (101), (020), (051), (151), and (133) crystal planes. The N2 physical adsorption / desorption curves of this H-type ZSM-5 molecular sieve are shown below. Figure 2 As shown, the adsorption isotherm is type I, and the figure indicates that this molecular sieve possesses a rich microporous structure. The SEM image of this H-type ZSM-5 molecular sieve is shown below. Figure 3 As shown in the SEM images, the molecular sieve crystals are uniformly distributed with an average particle size of approximately 500 nm. The ammonia temperature-programmed desorption (NH3-TPD) curve of this H-type ZSM-5 molecular sieve is shown in the figure. Figure 4 As shown, the H-type ZSM-5 molecular sieve obtained in Example 1 exhibits NH3 desorption peaks at 173℃ and 478℃, respectively, indicating that it possesses abundant strong acid and weak acid centers.

[0028] (2) Dissolve 0.1 g of boric acid in 10 mL of deionized water and slowly add it dropwise to 10 g of H-type ZSM-5 molecular sieve. Dry at 80 °C for 12 h to obtain boric acid modified molecular sieve.

[0029] (3) Add 5 g of boric acid modified molecular sieve, 100 g of acrylic acid, 1 g of ammonium persulfate, 2 g of N,N-dimethylbisacrylamide and 2 g of hexadecyl phosphate monoester to 200 mL of deionized water, mix them evenly and pour them into a high-pressure reactor. React at 80°C for 6 h, and continuously introduce N2 for protection during the reaction.

[0030] (4) Pour out the oil phase medium (aromatics, alkanes, or petroleum ether, etc.), take out the reaction product, cut it into thin slices, wash it with deionized water, soak it in anhydrous methanol for 5 h, then rinse it three times with anhydrous ethanol, and dry the resulting solid at 80℃ to constant weight to obtain the boric acid modified ZSM-5 molecular sieve hybrid resin composite material. The SEM image of this boric acid modified ZSM-5 molecular sieve hybrid resin composite material is shown below. Figure 5As shown in the picture, the actual product is as follows. Figure 6 As shown.

[0031] Example 2 (1) Tetraethyl orthosilicate (based on the molar amount of SiO2), aluminum hydroxide (based on the molar amount of Al2O3), tetrapropylammonium hydroxide, and deionized water were mixed in a molar ratio of n(SiO2):n(Al2O3):n(TPAOH):n(H2O) = 1:0.005:0.4:30 and stirred at room temperature to form a gel precursor. The gel precursor was transferred to a reaction vessel and crystallized at 200°C for 48 h. The solid product was filtered, washed, and dried at 100°C for 12 h to obtain the Na-type ZSM-5 molecular sieve precursor. Subsequently, it was treated with 1 mol / L NH4NO3 solution, stirred at 60°C for 6 hours, centrifuged and filtered, washed with water, dried at 80°C, and calcined at 600°C for 4 h to obtain the H-type ZSM-5 molecular sieve.

[0032] (2) Dissolve 0.2 g of boric acid in 10 mL of deionized water and slowly add it dropwise to 10 g of H-type ZSM-5 molecular sieve. Dry at 80 °C for 12 h to obtain boric acid modified molecular sieve material.

[0033] (3) Add 10 g of boric acid modified molecular sieve, 100 g of acrylic acid, 1 g of hydrogen peroxide, 1 g of ethylenediamine and 5 g of polyoxyethylene nonylphenol to 200 mL of deionized water, mix them evenly and pour them into a high-pressure reactor. React at 60°C for 5 h, and continuously introduce N2 for protection during the reaction.

[0034] (4) Pour out the oil phase medium, take out the reaction product, cut it into thin slices, wash it with deionized water, soak it in anhydrous methanol for 3 h, rinse it twice with anhydrous ethanol, and dry the obtained solid at 80°C to constant weight to obtain boric acid modified ZSM-5 molecular sieve hybrid resin composite material.

[0035] Example 3 (1) Silica sol (based on the molar amount of SiO2), sodium aluminate (based on the molar amount of Al2O3), tetrapropylammonium hydroxide and deionized water were mixed in a molar ratio of n(SiO2):n(Al2O3):n(TPAOH):n(H2O) = 1:0.0025:0.4:30 and stirred at room temperature to form a gel precursor. The gel precursor was transferred to a reaction vessel and crystallized at 150°C for 36 h. The solid product was filtered, washed and dried at 80°C for 10 h to obtain Na-type ZSM-5 molecular sieve precursor. Subsequently, it was treated with 1 mol / L NH4NO3 solution, stirred at 60°C for 6 hours, centrifuged and filtered, washed with water, dried at 80°C and calcined at 600°C for 2 h to obtain H-type ZSM-5 molecular sieve.

[0036] (2) Dissolve 0.02 g of boric acid in 10 mL of deionized water and slowly add it dropwise to 10 g of H-type ZSM-5 molecular sieve. Dry at 80 °C for 12 h to obtain boric acid modified molecular sieve material.

[0037] (3) Add 1 g of boric acid modified molecular sieve, 100 g of acrylic acid, 0.5 g of ammonium persulfate, 0.5 g of potassium persulfate, 0.2 g of N-hydroxymethylpropene and 1.5 g of octadecyl phosphate monoester to 200 mL of deionized water, mix them evenly, and pour them into a high-pressure reactor. React at 70°C for 4 h, and continuously introduce N2 for protection during the reaction.

[0038] (4) Pour out the oil phase medium, take out the reaction product, cut it into thin slices, wash it with deionized water, soak it in anhydrous methanol for 4 h, rinse it with anhydrous ethanol 3 times, and dry the obtained solid at 80°C to constant weight to obtain boric acid modified ZSM-5 molecular sieve hybrid resin composite material.

[0039] Example 4 Silica sol (based on the molar amount of SiO2), sodium aluminate (based on the molar amount of Al2O3), tetrapropylammonium hydroxide, and deionized water were mixed in a molar ratio of n(SiO2):n(Al2O3):n(TPAOH):n(H2O) = 1:0.015:0.4:30 and stirred at room temperature to form a gel precursor. The gel precursor was transferred to a reaction vessel and crystallized at 180°C for 96 h. The solid product was filtered, washed, and dried at 80°C for 12 h to obtain the Na-type ZSM-5 molecular sieve precursor. Subsequently, it was treated with 1 mol / L NH4NO3 solution, stirred at 60°C for 6 hours, centrifuged, filtered, washed with water, dried at 80°C, and calcined at 600°C for 6 h to obtain the H-type ZSM-5 molecular sieve.

[0040] 0.3 g of boric acid was dissolved in 10 mL of deionized water and then slowly added dropwise to 10 g of H-type ZSM-5 molecular sieve. The mixture was dried at 80 °C for 12 h to obtain boric acid modified molecular sieve material.

[0041] In this embodiment, steps (3) and (4) are the same as in embodiment 1.

[0042] Comparative Example 1 The superabsorbent resin of this embodiment is made from the following raw materials in the following proportions: 100 g acrylic acid, 1 g ammonium persulfate, 2 g N,N-dimethylbisacrylamide and 2 g hexadecyl phosphate monoester. The superabsorbent resin without molecular sieves was prepared according to steps (3) and (4) of Example 1.

[0043] Comparative Example 2 The superabsorbent resin of this embodiment is made from the following raw materials in the following proportions: 100 g acrylic acid, 35 g acrylamide, 1 g hydrogen peroxide, 1 g ethylenediamine, and 5 g polyoxyethylene nonylphenol. A superabsorbent resin without molecular sieves was prepared according to steps (3) and (4) of Example 2.

[0044] Absorption performance test The boric acid-modified ZSM-5 molecular sieve hybrid resin composites prepared in Examples 1-4 and the sieve-free superabsorbent resins prepared in Comparative Examples 1-2 were tested according to standard ASTM D570-1998(2010)e1 for their respective water absorption ratio, absorption capacity under 0.3 psi pressure, and gel strength. The test results are shown in Table 1. Table 1. Absorption performance test results of different samples As shown in Table 1, the molecular sieve and superabsorbent resin composites prepared in Examples 1-4 of this invention exhibit higher water absorption ratios, absorption capacities at 0.3 psi pressure, and gel strength compared to the superabsorbent resins without molecular sieves prepared in Comparative Examples 1-2. Furthermore, the absorption capacities at 0.3 psi pressure and gel strength of the products significantly increase with increasing molecular sieve content. This confirms that the stable framework structure and abundant pores of the molecular sieve under high temperature and pressure can solve the technical problems of insufficient gel strength and unsatisfactory pressure resistance and water absorption performance of traditional superabsorbent resins.

[0045] Ammonia removal performance test: The molecular sieve and superabsorbent resin composite materials prepared in Examples 1-4, and the superabsorbent resin without molecular sieve prepared in Comparative Examples 1-2 were subjected to ammonia removal performance tests. The test results are shown in Table 2. The specific test methods are as follows: Take 5g of each of the test samples prepared in Examples 1-4 and Comparative Examples 1-2.

[0046] Seven PVF resin gas bags were prepared. Test samples were placed in six of the gas bags, with the remaining bag serving as a blank. Then, 1000 ppm of NH3 was introduced into each of the seven gas bags and sealed. After 1 hour, the concentration of NH3 in the gas bags was measured using a gas detection tube. The test results are as follows: Table 2. Results of ammonia removal performance tests on different samples As can be seen from the performance test results in Table 2, the present invention combines boric acid-modified ZSM-5 molecular sieve powder with a superabsorbent resin in the raw material formulation for preparing the absorbent material. This enables the novel composite absorbent material of the present invention to adsorb and neutralize alkaline substances, such as ammonia. Therefore, the molecular sieve and superabsorbent resin composite materials prepared in Examples 1-4 of the present invention have excellent ammonia removal and deodorization effects.

[0047] It is worth mentioning that the technical features such as the high-pressure reactor involved in this patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field, and should not be regarded as the inventive point of this patent. This patent will not be further elaborated in detail.

[0048] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A method for preparing boric acid-modified ZSM-5 molecular sieve hybrid resin composite material, characterized in that, It includes the following steps: 1) The Na-type ZSM-5 molecular sieve was subjected to ammonium exchange treatment to obtain the H-type ZSM-5 molecular sieve; 2) Boric acid modification of H-type ZSM-5 molecular sieve to obtain boric acid modified ZSM-5 molecular sieve solid; 3) A certain amount of boric acid modified ZSM-5 molecular sieve solid, acrylic acid, initiator, and crosslinking agent are uniformly mixed in deionized water and then subjected to polymerization reaction; 4) Remove the reaction product of the polymerization reaction, wash and dry it to obtain the boric acid modified ZSM-5 molecular sieve hybrid resin composite material.

2. The preparation method of the boric acid-modified ZSM-5 molecular sieve hybrid resin composite material as described in claim 1, characterized in that, The ammonium exchange treatment process of the Na-type ZSM-5 molecular sieve includes: adding a certain amount of Na-type ZSM-5 molecular sieve to a 1 mol / L NH4NO3 solution, stirring at 60°C for 6 hours, centrifuging and filtering, washing with water, drying at 80°C, and calcining at 500-600°C for 2-5 hours.

3. The preparation method of the boric acid modified ZSM-5 molecular sieve hybrid resin composite material as described in claim 2, characterized in that, The silica-alumina ratio of the Na-type ZSM-5 molecular sieve is 30-200.

4. The preparation method of the boric acid modified ZSM-5 molecular sieve hybrid resin composite material as described in claim 1, characterized in that, The boric acid modification process includes: using an equal-volume impregnation method, placing H-type ZSM-5 molecular sieve into a certain amount of boric acid, and then drying it at 50-100℃ for 5-12 h to obtain boric acid modified ZSM-5 molecular sieve.

5. The preparation method of the boric acid modified ZSM-5 molecular sieve hybrid resin composite material as described in claim 4, characterized in that, The boric acid has a mass fraction of 0.1-5 wt%.

6. The method for preparing the boric acid-modified ZSM-5 molecular sieve hybrid resin composite material as described in claim 1, characterized in that, The polymerization reaction in step 3) also includes a certain amount of dispersant. The polymerization reaction is carried out under nitrogen protection, the reaction temperature is 60-80℃, and the reaction time is 2-8 h.

7. The method for preparing the boric acid-modified ZSM-5 molecular sieve hybrid resin composite material as described in claim 6, characterized in that, The mass ratio of the boric acid modified molecular sieve, acrylic acid, initiator, and crosslinking agent is 0.5-15:100:0.1-2:0.1-5. The initiator includes one or more of ammonium persulfate, potassium persulfate, hydrogen peroxide, and benzoyl peroxide. The crosslinking agent includes one or more of N,N-dimethylbisacrylamide, N-hydroxymethylpropylene, ethylenediamine, divinylbenzene, and divinyltoluene. The dispersant includes one or more of hexadecyl phosphate, octadecyl phosphate, polyoxyethylene nonylphenol, or triethylene glycol. The dispersant accounts for 1-6 wt% of the total weight of the polymerization reaction materials.

8. The method for preparing the boric acid-modified ZSM-5 molecular sieve hybrid resin composite material as described in claim 1, characterized in that, In step 4), the reaction product is cut into thin slices, washed with deionized water, then soaked in anhydrous methanol for 3-6 hours, rinsed with anhydrous ethanol 2-3 times to remove excess methanol, and dried to constant weight to obtain boric acid modified ZSM-5 molecular sieve hybrid resin composite material.

9. A boric acid-modified ZSM-5 molecular sieve hybrid resin composite material, characterized in that, It is prepared by the preparation method according to any one of claims 1-8.

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