Organic-inorganic hybrid composite dust suppressant with rolling resistance and preparation method of organic-inorganic hybrid composite dust suppressant

Abstract

The invention discloses an organic-inorganic hybrid composite dust suppressant with rolling compaction resistance and a preparation method thereof. The organic-inorganic hybrid composite dust suppressant comprises the following raw material components in percentage by weight: (A) 10-20% of an organic-inorganic hybrid polymer; (B) 1%-3% of an inorganic nano material; (C) 1%-3% of a humectant; (D) 0.15%-0.45% of a wetting penetrant; (E) 0.75%-3% of a stable dispersion system; and (F) water: the balance being water, wherein the total percentage is 100%. Comprising the following steps: preparing a water-phase base solution, preparing an oil-phase pre-emulsion, carrying out in-situ hybridization polymerization, and carrying out functional compounding. A cured layer formed after the prepared composite dust suppressant is applied to mine road dust control can lock moisture for a long time and prevent a cured shell layer from shrinking and embrittling due to excessive drying, the composite dust suppressant has enough mechanical strength and excellent toughness, and organic-inorganic components of the composite dust suppressant must have a strong interface chemical binding force, so that the composite dust suppressant has a very good application prospect. And rolling impact and shearing of heavy-load vehicles can be effectively resisted.

Description

Organic-inorganic hybrid dust suppressant with anti-rolling properties and its preparation method Technical Field

[0001] This invention relates to the field of dust suppressant technology, specifically to an organic-inorganic hybrid composite dust suppressant with anti-rolling properties and its preparation method. The prepared composite dust suppressant is particularly suitable for application in dust control on mine roads, and can also be used in dust control on unpaved roads, surface solidification of bulk material stockpiles, or soil solidification. Background Technology

[0002] Mining road transportation is a crucial link in mineral development. Its characteristics include loose road surface structure (usually unpaved), complex dust sources (mineral powder, slag, and soil), and the predominantly heavy-duty trucks that carry heavy loads and travel frequently. During vehicle operation, the wheels crush dust and exert rotational shear forces, easily causing dust to be stirred up and creating severe dust pollution. This not only endangers the health of workers and deteriorates the working environment but also poses a significant safety hazard by reducing visibility in mining areas.

[0003] To suppress dust from mining roads, various types of dust suppressants have been developed, including those using natural polymers as binders, those employing synthetic polymer emulsions, and composite dust suppressants incorporating nanomaterials. However, when these existing technologies are applied to the specific scenario of heavy-load, high-frequency rolling on mining roads, their poor resistance to rolling and short durability remain prominent. For example, dust suppressants using natural polymers such as lignin sulfonates as single or main film-forming components, while utilizing their excellent adhesive strength, suffer from inherently rigid molecules and a lack of effective flexible toughening methods. This results in a cured shell that is "overly rigid but lacks toughness." As indicated in US Patent US20150115197A1, this brittle shell is "extremely prone to cracking" under slight road surface deformation or vehicle load movement. This brittle shell clearly cannot withstand the repeated impacts and rolling stresses of heavy mining trucks, easily breaking and peeling off, leading to road dust.

[0004] To improve the toughness and mechanical properties of materials, some existing technologies (Chinese Patent CN 120536112 A) attempt to compound "pre-prepared polymer emulsions" with "nano-reinforcing materials" (such as modified attapulgite). However, this approach employs a physical blending method of "preparation first, then mixing." Composite materials prepared in this way lack chemical bonding between the polymer matrix (organic phase) and the nanofiller (inorganic phase), relying only on weak physical adsorption or van der Waals forces, resulting in poor interfacial compatibility and weak bonding.

[0005] This weak interfacial bonding exposes serious inherent defects: when the dust suppressant shell shrinks due to water loss or develops microcracks under rolling stress, this weak interface cannot effectively transfer stress or prevent crack tip propagation. The nanofiller easily detaches from the polymer matrix, ultimately leading to fatigue failure of the shell structure under cyclic loading. Furthermore, many polymeric dust suppressants have high surface tension and insufficient wetting and penetration of hydrophobic dust from mines, making it difficult to form a robust "anchoring" structure, and thus prone to failure under the shear force of vehicle rolling.

[0006] Furthermore, to achieve long-lasting dust suppression, existing technologies often incorporate inorganic salts such as magnesium chloride and calcium chloride as humectants. However, these highly hygroscopic salt compounds are significantly corrosive, causing long-term damage to mining facilities and transport vehicle chassis, and easily leading to soil salinization and secondary environmental pollution around roads. This humidification method, which sacrifices the environment and equipment lifespan, is difficult to meet the standards of modern green mining operations.

[0007] In summary, existing dust suppressants for mining roads generally suffer from one or more problems, such as brittle shells, weak interfaces, and poor wetting. These problems collectively lead to their current state of "excessive compressive strength but insufficient shear and fatigue resistance" under heavy-load compaction, making it difficult to simultaneously meet the stringent requirements of "high toughness" and "high strength." Therefore, there is an urgent need in this field to develop a novel composite dust suppressant that forms a cured layer with both sufficient mechanical strength and excellent toughness, and whose organic-inorganic components must possess strong interfacial chemical bonding to effectively resist the crushing impact and shearing of heavy-load vehicles. Summary of the Invention

[0008] The purpose of this invention is to address one or more problems commonly found in existing mine road dust suppressants, such as brittle shells, weak interfaces, and poor wetting. In order to overcome the technical limitations of existing mine road dust suppressants under heavy-load and high-frequency rolling conditions in mines, this invention provides an organic-inorganic hybrid composite dust suppressant with high toughness, high strength, and environmental friendliness, which has anti-rolling properties. This solves the key technical problems commonly found in existing dust suppressants, such as the lack of synergy in the mechanical properties of the solidified shell, poor interfacial bonding of functional components, and unsatisfactory environmental performance.

[0009] Another object of the present invention is to provide a method for preparing the above-mentioned organic-inorganic hybrid dust suppressant.

[0010] To achieve the above-mentioned objectives of the present invention, the present invention provides an organic-inorganic hybrid composite dust suppressant with anti-rolling properties, which is implemented by the following technical solution.

[0011] This invention relates to an organic-inorganic hybrid composite dust suppressant with anti-rolling properties, characterized by the following percentage content of each component when the total weight of the raw materials is taken as 100%: (A) Organic-inorganic hybrid polymer: 10%~20%; (B) Inorganic nanomaterials: 1%~3%; (C) Humidifier: 1%~3%; (D) Wetting and penetrating agent: 0.15%~0.45%; (E) Stable dispersion system: 0.75%~3%; (F) Water: the balance is made up to 100%.

[0012] Component (A) is a polymer with a hybrid network structure formed by in-situ polymerization of the following raw materials, wherein the raw materials include: (a) a mixture of acrylate monomers, accounting for 97% to 99% of the total mass of component (A); (b) a silane coupling agent, accounting for 0.5% to 2.95% of the total mass of component (A); and (c) an initiator system, the amount of which is 0.05% to 0.6% of the total mass of raw materials (a) and (b).

[0013] The (D) component is composed of alkyl glycoside (APG-1214) and fatty alcohol polyoxyethylene ether (JFC-2), wherein APG-1214 accounts for 0.05% to 0.2% of the total weight of the raw material components, and JFC-2 accounts for 0.1% to 0.25% of the total weight of the raw material components;

[0014] The (E) component is a mixture of sodium lignosulfonate (NaLS) and sodium carboxymethyl cellulose (CMC), wherein NaLS accounts for 0.25% to 1% of the total weight of the raw material components, and CMC accounts for 0.5% to 2% of the total weight of the raw material components;

[0015] The raw material (c) is a redox system composed of potassium persulfate (KPS) and sodium bisulfite (NaHSO3).

[0016] Preferably, component (B) is nano-silica (nano-SiO2); component (C) is glycerol.

[0017] Preferably, the raw material (a) is composed of a mixture of the soft monomer butyl acrylate (BA) and the hard monomer methyl methacrylate (MMA), wherein BA accounts for 50% to 65% of the total weight of the monomer mixture and MMA accounts for 35% to 50% of the total weight of the monomer mixture.

[0018] Preferably, the raw material (b) is γ-methacryloyloxypropyltrimethoxysilane.

[0019] Preferably, the raw material (a) is composed of a mixture of the soft monomer butyl acrylate and the hard monomer methyl methacrylate, wherein the soft monomer butyl acrylate accounts for 50% to 65% of the total weight of the monomer mixture, and the hard monomer methyl methacrylate accounts for 35% to 50% of the total weight of the monomer mixture; the raw material (b) is γ-methacryloyloxypropyltrimethoxysilane.

[0020] Preferably, in the raw material (c), the molar ratio of potassium persulfate and sodium bisulfite is 1:1 or 1:2.

[0021] The present invention discloses a method for preparing an organic-inorganic hybrid dust suppressant with anti-rolling properties, comprising the following steps:

[0022] S1. Preparation of aqueous base liquid: Take 40%~60% of water from component (F) of the total formula, add sodium lignosulfonate from component (E) and nano silica from component (B), and disperse by high-speed stirring and ultrasonication to obtain aqueous base liquid.

[0023] S2. Preparation of oil phase preemulsion: Mix raw material (a) and raw material (b) to form an oil phase; take 20%~30% of water and all of component (D) in the total amount of the formula, and slowly add the oil phase under high-speed shearing conditions for 15~30 minutes to obtain oil phase preemulsion.

[0024] S3, In-situ Hybrid Polymerization: The aqueous base liquid obtained in step S1 is placed in a reaction vessel and heated to 50℃~80℃ under nitrogen protection. Potassium persulfate, the oxidant from raw material (c), is added. At the same time, sodium bisulfite, the reducing agent from raw material (c), is added to the oil-phase pre-emulsion obtained in step S2 and mixed evenly. Subsequently, the oil-phase pre-emulsion containing the reducing agent is continuously added dropwise to the reaction vessel over 2~4 hours to carry out the polymerization reaction. After the addition is completed, the mixture is kept warm and cooled to obtain an organic-inorganic hybrid emulsion.

[0025] S4. Functional compounding: Sodium carboxymethyl cellulose in component (E) is pre-dissolved in the remaining water in component (F) to prepare a glue solution. Then, under low-speed stirring, component (C) and the glue solution are added sequentially to the organic-inorganic hybrid emulsion obtained in step S3, and stirred evenly to obtain the finished product.

[0026] Furthermore, in step S3, the reaction temperature during the dropwise polymerization process is controlled at 50℃~70℃, and the pH value of the system is adjusted to 7.0~8.0 after cooling.

[0027] Compared with existing technologies, the organic-inorganic hybrid dust suppressant with anti-rolling properties and its preparation method of the present invention have the following significant beneficial effects:

[0028] (1) Achieving a balance of rigidity and flexibility in mechanical properties, significantly improving resistance to rolling fatigue. Through in-situ polymerization, the highly elastic segments provided by BA are chemically fused with the rigid framework provided by NaLS and MMA at the molecular chain level. The resulting "rigid-flexible" network structure can effectively absorb and disperse rolling stress, giving the shell both high strength and high elongation at break, fundamentally overcoming the fatal defect of traditional shells being brittle and prone to cracking.

[0029] (2) A chemically bonded hybrid network was constructed, which greatly solved the problem of "interfacial failure". This invention innovatively introduces a silane coupling agent (KH-570) into the in-situ polymerization process. This coupling agent acts as a "chemical bridge", copolymerizing with BA / MMA monomers at one end and undergoing hydrolysis and condensation with nano-SiO2 at the other end. This forms an organic-inorganic hybrid network with extremely strong interfacial bonding, which can effectively prevent the propagation of microcracks, not only giving the shell excellent fatigue resistance, but also greatly improving its water washability.

[0030] (3) It achieves environmentally friendly and long-lasting moisturizing, solving the problems of "drying and becoming brittle" and "secondary pollution". This invention uses glycerol as a moisturizer, completely avoiding the "salt damage" corrosion caused to vehicles and equipment and the "salinization" environmental problems caused to the soil by traditional inorganic salt moisturizers. Moreover, as a highly efficient organic moisturizer and plasticizer, glycerol can lock in moisture for a long time and prevent the solidified shell from shrinking and becoming brittle due to excessive drying. This synergistically enhances the durability of the dust suppressant in dry climates, achieving a high degree of unity between function and environmental protection. Attached Figure Description

[0031] Figure 1 is a process flow diagram of the preparation process of the organic-inorganic hybrid dust suppressant with anti-rolling properties of the present invention.

[0032] Figure 2 is a schematic diagram of the microscopic mechanism of in-situ hybrid emulsion polymerization. Detailed Implementation

[0033] To better describe the present invention, the organic-inorganic hybrid dust suppressant with anti-rolling properties and its preparation method are further described in detail below with reference to the accompanying drawings. Those skilled in the art will understand that the following examples are for illustrative purposes only and should not be considered as limiting the scope of the invention. Specific conditions and parameters not specified in the examples were performed under conventional conditions or conditions recommended by on-site operators. Reagents, instruments, and equipment used, unless otherwise specified, are all commercially available products.

[0034] The raw materials used in the following examples and comparative examples are all commercially available industrial grade or analytical grade reagents.

[0035] Example 1 (Optimal Formula for Overall Performance)

[0036] This embodiment provides an anti-rollover organic-inorganic hybrid composite dust suppressant, whose composition by weight percentage is as follows: (A) organic-inorganic hybrid polymer emulsion: 15%; (B) nano-SiO2: 2%; (C) glycerol: 2%; (D) wetting and penetrating agent (APG-1214: 0.1% + JFC-2: 0.15%): 0.25%; (E) stable dispersion system (NaLS: 0.5% + CMC-Na: 1%): 1.5%; (F) water: 79.25%. In component (A), the BA:MMA mass ratio is 6:4; KH-570 accounts for 2% of the total monomers; and the initiator (KPS + NaHSO3) accounts for 0.4% of the total monomers.

[0037] As shown in Figure 1, which is a flowchart of the preparation process of the organic-inorganic hybrid composite dust suppressant with anti-rolling properties according to the present invention, and in conjunction with Figure 2, the preparation steps of the organic-inorganic hybrid composite dust suppressant with anti-rolling properties according to the present invention are as follows:

[0038] (1) Preparation of aqueous base liquid: Add 4 kg of water to the reactor, add 0.05 kg of NaLS and 0.2 kg of nano SiO2. Turn on high speed stirring (500 rpm) and mix for 15 min, then perform ultrasonic dispersion for 30 min to obtain a uniform aqueous base liquid.

[0039] (2) Preparation of oil phase preemulsion: Weigh 0.9 kg of BA, 0.6 kg of MMA, and 0.03 kg of KH-570 and mix them evenly to prepare the oil phase. Take another 2 kg of water, add 0.01 kg of APG-1214 and 0.015 kg of JFC-2, and slowly add the above oil phase under a high-speed shear machine (3000 rpm). Shear emulsify for 20 min to obtain a milky white oil phase preemulsion.

[0040] (3) In-situ hybrid polymerization: The aqueous base liquid was heated to 60°C and oxygen was removed by purging with nitrogen. An aqueous solution containing 0.004 kg KPS was added. An aqueous solution containing 0.002 kg NaHSO3 was added to the oil phase pre-emulsion and mixed. The temperature was kept constant at 60°C, and the pre-emulsion containing the reducing agent was added dropwise to the reactor at a uniform rate over 3 hours using a dropping device. After the addition was completed, the temperature was maintained for 1 hour, cooled to room temperature, and the pH was adjusted to 7.5 with ammonia to obtain an organic-inorganic hybrid emulsion.

[0041] (4) Functional compounding: Dissolve 1 kg of CMC-Na in 1.925 kg of water to prepare a glue solution. Under low speed stirring, add 0.2 kg of glycerol and CMC-Na glue solution to the hybrid emulsion in sequence, and stir evenly to obtain the finished product.

[0042] Example 2 (Focusing on high elasticity formulation)

[0043] The only difference between this embodiment and Example 1 is that the monomer ratio in component (A) is adjusted to BA:MMA = 7:3 (increasing the proportion of soft monomers). All other components and preparation process parameters remain the same as in Example 1. This formulation is designed to verify performance under low-temperature conditions or conditions requiring higher flexibility.

[0044] Example 3 (Focusing on high-strength formulation)

[0045] The only difference between this embodiment and Example 1 is that the monomer ratio in component (A) is adjusted to BA:MMA = 5:5 (increasing the proportion of hard monomers). All other components and their preparation process parameters remain the same as in Example 1. This formulation aims to verify its performance under conditions requiring high pavement strength.

[0046] Comparative Example 1

[0047] This comparative example uses the same raw material formulation as Example 1, but is prepared by physical blending without in-situ hybrid polymerization. Preparation steps:

[0048] (1) Purchase commercially available pure acrylic emulsion directly (the solid content is the same as the polymer content in Example 1, BA:MMA≈6:4).

[0049] (2) Nano SiO2, NaLS, APG-1214, JFC-2, glycerol, CMC-Na and water were added directly to the emulsion in the proportions of Example 1.

[0050] (3) Mix thoroughly by mechanical stirring at room temperature for 60 minutes.

[0051] Comparative Example 2

[0052] The only difference between this comparative example and Example 1 is that KH-570 silane coupling agent was not added; the other raw materials and "in-situ polymerization" process steps are exactly the same.

[0053] Performance Testing and Result Analysis

[0054] The dust suppressant samples prepared in Examples 1-3 and Comparative Examples 1-2 were subjected to performance tests. In order to comprehensively evaluate the intrinsic performance and practical application performance of the products, this experiment focused on mechanical properties, wetting and penetration properties, and long-lasting moisturizing properties.

[0055] (1) Compressive strength and elongation at break: Road and mining dust was taken and mixed with the dust suppressant of each example / comparative example at a mass ratio of 10:1 (dust: dust suppressant liquid). The mixture was filled into a standard cylindrical mold with a diameter of 50 mm and a height of 50 mm, pre-pressed with a pressure of 2 MPa, and cured at room temperature for 3 days after demolding. The solidified specimen was then subjected to compression test using a universal testing machine, and the maximum pressure at which the specimen broke was recorded. Preparation of cured film: A small amount of pure dust suppressant sample liquid was poured into a polytetrafluoroethylene mold and allowed to dry naturally at room temperature to form a film for later use. The elongation at break was determined according to GB / T 1040.3-2006 standard.

[0056] (2) Wetting and Penetration Performance Test: Wettability: The contact angle of the dust suppressant droplet on the surface of the road dust (100 mesh) tablet was measured using a contact angle measuring instrument. The smaller the angle, the better the wettability. Penetration Depth: A 10 mL graduated cylinder was prepared, filled with 10 g of road dust (100 mesh), and gently tapped to the 5 mL mark. 5 mL of dust suppressant solution was slowly added to the dust surface, and after standing for 10 min, the depth of vertical penetration of the solution was measured. The deeper the penetration, the thicker the solidified shell layer formed, and the stronger the shear and crush resistance.

[0057] (3) Long-lasting moisturizing performance test: Weigh 20g of standard dust and place it in a petri dish, spray 10g of dust suppressant, mix well and place in a constant temperature drying oven (40℃). Weigh at regular intervals (0h, 3h, 6h) and calculate the water loss rate. The lower the water loss rate, the stronger the water-locking ability of the water-retaining agent and polymer network.

[0058] The results are shown in Table 1.

[0059] Table 1 Performance test results of dust suppressant samples prepared in Examples 1-3 and Comparative Examples 1-2

[0060]

[0061] As can be seen from the test results in Table 1, compared with Comparative Examples 1 and 2, the organic-inorganic hybrid composite dust suppressant with anti-rolling properties prepared by the method of the present invention has the best comprehensive performance, with significantly improved compressive strength and tensile strength at break, significantly reduced contact angle, and significantly improved long-term water retention.

[0062] The above description is merely an embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, alterations, and equivalent transformations made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

[0063] The material selection, material ratio, and upper and lower limits and ranges of process parameters involved in this invention all contribute to achieving the desired results. The technical performance of the prepared organic-inorganic hybrid dust suppressant with anti-rolling properties is as follows: compressive strength 2.663–3.215 MPa, tensile strength at break 27.1%–37.1%, contact angle 24.320–27.316°, penetration depth 14.28–17.85 mm, 3-hour water retention rate 84.09%–87.28%, and 6-hour water retention rate 69.18%–74.53%. These figures will not be listed exhaustively here.

Claims

1. An organic-inorganic hybrid dust suppressant with anti-rolling properties, characterized in that... The percentage content of each component, calculated by weight (based on a 100% basis), is as follows: (A) Organic-inorganic hybrid polymer: 10%~20%; (B) Inorganic nanomaterials: 1%~3%; (C) Humectant: 1%~3%; (D) Wetting and penetrating agent: 0.15%~0.45%; (E) Stable dispersion system: 0.75%~3%; (F) Water: the balance is made up to 100%. Component (A) is a polymer with a hybrid network structure formed by in-situ polymerization of the following raw materials, which include: (a) a mixture of acrylate monomers, accounting for 97%~99% of the total mass of component (A); and (b) a silane coupling agent, accounting for 0.5%~2% of the total mass of component (A). 95%; (c) an initiator system, the amount of which is 0.05%~0.6% of the total mass of raw materials (a) and (b); component (D) is a mixture of alkyl glycoside and fatty alcohol polyoxyethylene ether, wherein the alkyl glycoside accounts for 0.05%~0.2% of the total weight of the raw material components, and the fatty alcohol polyoxyethylene ether accounts for 0.1%~0.25% of the total weight of the raw material components; component (E) is a mixture of sodium lignosulfonate and sodium carboxymethyl cellulose, wherein the sodium lignosulfonate accounts for 0.25%~1% of the total weight of the raw material components, and the sodium carboxymethyl cellulose accounts for 0.5%~2% of the total weight of the raw material components; raw material (c) is a redox system composed of potassium persulfate and sodium bisulfite.

2. The organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claim 1, characterized in that: Component (B) is nano-silica; component (C) is glycerol.

3. The organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claim 1, characterized in that: The raw material (a) is composed of a mixture of soft monomer butyl acrylate and hard monomer methyl methacrylate, wherein the soft monomer butyl acrylate accounts for 50% to 65% of the total weight of the monomer mixture, and the hard monomer methyl methacrylate accounts for 35% to 50% of the total weight of the monomer mixture.

4. The organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claim 1, characterized in that: The raw material in (b) is γ-methacryloxypropyltrimethoxysilane.

5. The organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claim 2, characterized in that: The raw material (a) is composed of a mixture of soft monomer butyl acrylate and hard monomer methyl methacrylate, wherein the soft monomer butyl acrylate accounts for 50% to 65% of the total weight of the monomer mixture, and the hard monomer methyl methacrylate accounts for 35% to 50% of the total weight of the monomer mixture; the raw material (b) is γ-methacryloyloxypropyltrimethoxysilane.

6. The organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claims 1, 2, 3, 4 or 5, characterized in that: In the raw material (c), the molar ratio of potassium persulfate and sodium bisulfite is 1:1 or 1:

2.

7. The method for preparing the organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claim 5, characterized in that... Includes the following steps: S1. Preparation of aqueous base liquid: Take 40%~60% of water from component (F) of the total formula, add sodium lignosulfonate from component (E) and nano silica from component (B), and disperse by high-speed stirring and ultrasonication to obtain an aqueous base liquid; S2. Preparation of oil-phase pre-emulsion: Mix raw materials (a) and (b) to prepare an oil phase; take 20%~30% of water from component (F) of the total formula and all of component (D), and slowly add the oil phase under high-speed shearing conditions for 15~30 minutes to obtain an oil-phase pre-emulsion; S3. In-situ hybrid polymerization: Place the aqueous base liquid obtained in step S1 in a reaction vessel and heat to 50°C under nitrogen protection. At ~80℃, potassium persulfate, the oxidant from raw material (c), is added; simultaneously, sodium bisulfite, the reducing agent from raw material (c), is added to the oil-phase pre-emulsion obtained in step S2 and mixed evenly; then, the oil-phase pre-emulsion containing the reducing agent is continuously added dropwise to the reaction vessel over 2-4 hours to carry out the polymerization reaction. After the addition is complete, the mixture is kept warm and cooled to obtain an organic-inorganic hybrid emulsion; S4, Functional compounding: Sodium carboxymethyl cellulose from component (E) is pre-dissolved in the remaining water of component (F) to prepare a glue solution. Then, under low-speed stirring, component (C) and the glue solution are sequentially added to the organic-inorganic hybrid emulsion obtained in step S3 and stirred evenly to obtain the finished product.

8. The method for preparing the organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claim 7, characterized in that: In step S3, the reaction temperature during the dropwise polymerization process is controlled at 50℃~70℃, and the pH value of the system is adjusted to 7.0~8.0 after cooling.

9. The method for preparing the organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claim 8, characterized in that: In the raw material (c), the molar ratio of potassium persulfate and sodium bisulfite is 1:

1.

10. The method for preparing the organic-inorganic hybrid dust suppressant with anti-rolling properties as described in claim 8, characterized in that: In the raw material (c), the molar ratio of potassium persulfate to sodium bisulfite is 1:2.

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