A novel ecological restoration hydrogel type environment-friendly dust suppressant and a preparation method thereof

Abstract

The application provides a novel ecological restoration water gel type environment-friendly dust suppressant, which comprises, in parts by weight, 0.7-1.3 parts of artemisia sphaerocephala krasch gum, 14.2-16.1 parts of polyvinyl alcohol foam plastic, 77-79.8 parts of pure acrylic emulsion and 2.8-2.9 parts of a surface active agent. The environment-friendly dust suppressant has excellent moisture absorption, moisture retention and dust suppression performance, can promote seed germination in soil, maintain seed vitality, promote plant seedling growth and improve the environment.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of dust suppressants, and particularly relates to a novel ecological restoration water gel type environment-friendly dust suppressant and a preparation method thereof. BACKGROUND

[0002] Urban particulate pollution is one of the environmental problems that has the greatest impact on human survival. It is closely related to the life of every urbanite. It has a continuously deteriorating adverse effect on people's health and living environment. In particular, in coal resource-based cities, due to the long-term development of the coal industry, a large amount of coal residue, dust and other particulate matter is left in the city, not only causing the deterioration of the production site environment quality, but also increasing the dust concentration in the air, seriously threatening the health of local residents, and even remaining in the air, causing haze, light pollution and ecological environmental pollution, and having a serious impact on people's life. The existing solutions can be divided into physical dust suppression method and chemical dust suppression method. The application scope of the physical dust suppression method has great limitations; the chemical dust suppression method is to spray the dust suppressant onto the surface of the bulk material pile to form an effective protective layer to achieve the purpose of dust suppression, and the dust suppression effect is better.

[0003] At present, the traditional chemical dust suppressant has achieved certain effect in controlling dust, but these traditional dust suppressants have poor water retention capacity and generally low strength and are easy to be damaged, contain a large amount of chemical substances in the composition, and long-term use will cause the accumulation of compounds in the environment, aggravate soil compaction, and are not conducive to the natural growth of plants in the later period, and the dust suppressant may mix heavy metal elements, which has an impact on environmental safety.

[0004] Therefore, how to provide a novel ecological restoration water gel type environment-friendly dust suppressant which not only has the functions of moisture absorption, moisture retention and dust suppression, but also promotes plant growth and improves the environment is a technical problem that those skilled in the art urgently need to solve. SUMMARY

[0005] The technical problem to be solved by the present application is that the dust suppressant in the prior art has poor water retention capacity, low strength and is easy to be damaged, and is difficult to be naturally metabolized in the natural environment, which has adverse effects on the environment.

[0006] In order to solve the above problems, the first aspect of the present application provides a novel ecological restoration water gel type environment-friendly dust suppressant, which comprises, in terms of weight fraction, 0.7-1.3 parts of artemisia sphaerocephala Pall gum, 14.2-16.1 parts of polyvinyl alcohol foam plastic, 77-79.8 parts of pure acrylic emulsion and 2.8-2.9 parts of a surface active agent.

[0007] In the first aspect, the polyvinyl alcohol foam plastic comprises waste polyvinyl alcohol foam plastic.

[0008] In the first aspect, the solid content of the pure acrylic emulsion is 30%-35%, the pure acrylic emulsion comprises butyl acrylate, hydroxyethyl acrylate and a neutralizing component, the neutralizing component comprises acrylic acid and sodium hydroxide in a weight ratio of 1:1, and the weight ratio of the butyl acrylate, the hydroxyethyl acrylate and the neutralizing component is 1:1:1.

[0009] In the first aspect, the surfactant comprises Span 80 and sodium dodecyl benzene sulfonate, and the weight ratio of the Span 80 and the sodium dodecyl benzene sulfonate is 2:1.

[0010] In the first aspect, the environmentally-friendly dust suppressant comprises, in terms of weight parts, 1.3 parts of artemisia sphaerocephala krasch gum, 14.7 parts of polyvinyl alcohol foam plastic, 79.8 parts of pure acrylic emulsion and 2.8 parts of surface activator.

[0011] In the second aspect, the application provides a preparation method of a novel ecological restoration hydrogel type environmentally-friendly dust suppressant, which comprises the following steps: weighing 0.7-1.3 parts of artemisia sphaerocephala krasch gum, 14.2-16.1 parts of polyvinyl alcohol foam plastic, 77-79.8 parts of pure acrylic emulsion and 2.8-2.9 parts of surface activator in terms of weight parts; cutting the polyvinyl alcohol foam plastic into blocks, sequentially adding the block-shaped polyvinyl alcohol foam plastic and 200 mL of water into a 500 mL three-necked flask, then heating the 500 mL three-necked flask in an oil bath at 90°C, adding ethanol into the heated 500 mL three-necked flask for purification, and obtaining polyvinyl alcohol after precipitating and vacuum drying the purified reaction product, wherein the weight ratio of the polyvinyl alcohol foam plastic to the ethanol is 14.2-16.1:4.7-5.3; adding 170 g of deionized water into a 500 mL three-necked flask, heating the 500 mL three-necked flask in a water bath at 85°C, adding the polyvinyl alcohol into the heated 500 mL three-necked flask and stirring under the condition of the water bath at 85°C for 1.5 h, adding the artemisia sphaerocephala krasch gum into the 500 mL three-necked flask after the stirring is completed, stirring under the condition of the water bath at 75°C for 1.5 h, and obtaining a first component after the stirring is completed; adding 55.86 g of deionized water into a 100 mL three-necked flask, heating the 100 mL three-necked flask in a water bath at 55°C, adding the surface activator into the heated 100 mL three-necked flask under N2 protection, stirring under the condition of the water bath at 55°C, adding the pure acrylic emulsion into the 100 mL three-necked flask after the stirring is uniform, dispersing for 10 min, adding an initiator into the 100 mL three-necked flask after the dispersing is completed, and performing copolymerization reaction for 2 h, thereby obtaining a second component; mixing and uniformly stirring the first component and the second component under the condition of constant temperature, obtaining a hydrogel, diluting the hydrogel with water to make the solid content of the hydrogel be 1%, and obtaining the environmentally-friendly dust suppressant.

[0012] In the second aspect, the polyvinyl alcohol foam plastic comprises waste polyvinyl alcohol foam plastic.

[0013] In the second aspect, the solid content of the pure acrylic emulsion is 30%-35%, the pure acrylic emulsion comprises butyl acrylate, hydroxyethyl acrylate and a neutralizing component, the neutralizing component comprises acrylic acid and sodium hydroxide in a weight ratio of 1:1, the weight ratio of the butyl acrylate, the hydroxyethyl acrylate and the neutralizing component is 1:1:1, and the initiator is ammonium persulfate, and the initiator is added in an amount of 0.2% of the mass of the pure acrylic emulsion.

[0014] In the second aspect, the surfactant comprises Span 80 and sodium dodecyl benzene sulfonate, and the weight ratio of the Span 80 and the sodium dodecyl benzene sulfonate is 2:1.

[0015] In the second aspect, the preparation method comprises: weighing 1.3 parts of artemisia sphaerocephala krasch gum, 14.7 parts of polyvinyl alcohol foam plastic, 79.8 parts of pure acrylic emulsion and 2.8 parts of surface activator.

[0016] Beneficial effects: the present application provides a new ecological restoration hydrogel type environment-friendly dust suppressant, which comprises artemisia sphaerocephala krasch gum, polyvinyl alcohol foam plastic, pure acrylic emulsion and surface activator. By adding artemisia sphaerocephala krasch gum, the germination of seeds can be promoted, the repair of damaged DNA of seeds can be promoted by absorbing dew, and the vitality of seeds can be maintained. In addition, after the artemisia sphaerocephala krasch gum enters the soil, it can be decomposed into small molecular substances by soil microorganisms. The small molecular substances can be directly utilized by plant seedlings, or utilized by soil microorganisms as metabolic substrates, so as to improve the richness of soil microbial community, thereby indirectly promoting the early growth of young flowers. In addition, the polyvinyl alcohol foam plastic has good hydrophilicity, film-forming property and degradability, the pure acrylic emulsion has good biocompatibility and is harmless to human body, can respond to the change of pH value in the environment, and has excellent surface crust property and natural degradation characteristics, so that the moisture absorption, moisture retention, dust suppression performance and degradable performance of the dust suppressant can be effectively improved. The environment-friendly dust suppressant in the present application can maintain the road surface wet and bond dust through the organic cooperation and synergistic effect among the artemisia sphaerocephala krasch gum, the polyvinyl alcohol foam plastic, the pure acrylic emulsion and the surface activator. With the increase of the spraying frequency of the environment-friendly dust suppressant on the road surface, the dust on the road surface and the scattered particles of the car can be bonded into stable soil, so as to play a role in dust suppression and maintenance, and the environment-friendly dust suppressant has a wide range of application and is suitable for large-scale popularization and use. On the other hand, the environment-friendly dust suppressant can promote plant growth and improve the environment. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 is a preparation method flow chart of a new ecological restoration hydrogel type environment-friendly dust suppressant in the embodiments of the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0020] Meanwhile, in the entire specification, unless otherwise specifically stated, the terms used herein should be understood as having the meanings as generally used in the art. Therefore, unless otherwise defined, all the technical and scientific terms used herein have the same meanings as generally understood by those skilled in the art to which the present application belongs. If there is a conflict, the present specification is preferred.

[0021] Unless otherwise specifically stated, the various raw materials, reagents, instruments and equipment used in the present application can be purchased from the market or can be prepared by existing methods.

[0022] Embodiment 1

[0023] The embodiment one of the present application provides a new ecological restoration hydrogel type environment-friendly dust suppressant. The environment-friendly dust suppressant comprises, in terms of weight fraction, 0.7-1.3 parts of sagebrush glue, 14.2-16.1 parts of polyvinyl alcohol foam plastic, 77-79.8 parts of pure acrylic emulsion and 2.8-2.9 parts of surface active agent.

[0024] Specifically, the present application provides a new type of ecological restoration hydrogel type environment-friendly dust suppressant, which comprises artemisia gel, polyvinyl alcohol foam plastic, pure acrylic emulsion and surfactant. By adding artemisia gel, the germination of seeds can be promoted, the repair of damaged DNA of seeds can be promoted by absorbing dew, and the vitality of seeds can be maintained. In addition, after the artemisia gel enters the soil, it can be decomposed into small molecular substances by soil microorganisms. The small molecular substances can be directly utilized by plant seedlings, or utilized by soil microorganisms as metabolic substrates, thereby improving the richness of soil microbial community and indirectly promoting the early growth of young flowers. In addition, the polyvinyl alcohol foam plastic has good hydrophilicity, film-forming property and degradability, the pure acrylic emulsion has good biocompatibility and is harmless to human body, can respond to the change of pH value in the environment, and has excellent surface crust property and natural degradation characteristics, so that the moisture absorption, moisture retention, dust suppression performance and degradable performance of the dust suppressant can be effectively improved. The environment-friendly dust suppressant in the present application can maintain the road surface wet, and bond dust through the organic cooperation and synergistic effect of artemisia gel, polyvinyl alcohol foam plastic, pure acrylic emulsion and surfactant. With the increase of the spraying times on the road surface, the dust on the road surface and the scattered particles of the car can be bonded into stable soil to play a role in dust suppression and maintenance, and the use range is wide, and the present application is suitable for large-scale popularization and use. On the other hand, the present application can promote plant growth and improve the environment.

[0025] The dust suppressant of the present application is a mixture prepared from hygroscopic chemical substances and surfactants. When actually acting on dust, the dust suppressant can change the hydrophilic and hydrophobic properties of dust particles, enhance the coagulation and wetting effect, make the dust not easy to raise, and achieve the purpose of inhibiting dust raising. At the same time, after the wetting of dust particles, the dust particles can continue to absorb water in the air, maintain the moisture content of the dust, prevent the wetted dust from drying due to water evaporation, and cause secondary dust raising. Moreover, the wetted dust has cohesiveness, so that the subsequent dust settled on the road surface can also be wetted and solidified, so that the dust raising in the wetted area will not occur again.

[0026] In some possible embodiments, the polyvinyl alcohol foam plastic comprises waste polyvinyl alcohol foam plastic.

[0027] This is because, by using waste polyvinyl alcohol foam plastic, such as waste disposable lunch boxes, the polyvinyl alcohol in the waste polyvinyl alcohol foam plastic can be recycled and utilized to prepare the environment-friendly dust suppressant, so that the waste polyvinyl alcohol foam plastic can be recycled and utilized, and the pollution problem caused by the waste polyvinyl alcohol foam plastic to the environment can be avoided.

[0028] In some possible implementation manners, the solid content of the pure acrylic emulsion is 30%-35%, the pure acrylic emulsion comprises butyl acrylate, hydroxyethyl acrylate and a neutralizing component, the neutralizing component comprises sodium acrylate and sodium hydroxide in a weight ratio of 1:1, and the butyl acrylate, the hydroxyethyl acrylate and the neutralizing component are in a weight ratio of 1:1:1.

[0029] The skilled in the art can understand that, the sodium acrylate in the neutralizing component after the neutralization of the acrylic acid by sodium hydroxide can improve the water absorption rate and the gel strength of the acrylic acid, and the pure acrylic emulsion composed of the butyl acrylate, the hydroxyethyl acrylate and the acrylic acid neutralized by sodium hydroxide has excellent biocompatibility, weather resistance and anti-back-sticking property, can be naturally degraded, and is harmless to the human body and the environment.

[0030] In some possible implementation manners, the surfactant comprises Span 80 and sodium dodecyl benzene sulfonate, and the weight ratio of the Span 80 to the sodium dodecyl benzene sulfonate is 2:1.

[0031] The skilled in the art can understand that, the Span 80 is a non-ionic surfactant, and the sodium dodecyl benzene sulfonate is an anionic surfactant, which has good surface activity and strong hydrophilicity, and the combination of the non-ionic surfactant and the anionic surfactant and the control of the optimal ratio of the two can effectively reduce the tension of the oil-water interface, achieve the emulsification effect and stabilize the polymerization reaction.

[0032] In some possible implementation manners, the environmentally-friendly dust suppressant comprises, in parts by weight, 1.3 parts of artemisia sphaerocephala krasch gum, 14.7 parts of polyvinyl alcohol foam plastic, 79.8 parts of pure acrylic emulsion and 2.8 parts of surfactant.

[0033] This is because the environmentally-friendly dust suppressant comprises, in parts by weight, 1.3 parts of artemisia sphaerocephala krasch gum, 14.7 parts of polyvinyl alcohol foam plastic, 79.8 parts of pure acrylic emulsion and 2.8 parts of surfactant, so that the component ratio of the environmentally-friendly dust suppressant is optimal, and the performance of the obtained environmentally-friendly dust suppressant is optimal.

[0034] Example 2

[0035] As Figure 1As shown, the second embodiment of the present application provides a preparation method of a new type of ecological restoration hydrogel type environment-friendly dust suppressant, the preparation method comprises: S101, according to the weight fraction, 0.7-1.3 parts of artemisia sphaerocephala krasch gum, 14.2-16.1 parts of polyvinyl alcohol foam plastic, 77-79.8 parts of pure acrylic emulsion and 2.8-2.9 parts of surface active agent; S102, the polyvinyl alcohol foam plastic is cut into blocks, the blocky polyvinyl alcohol foam plastic and 200ml water are sequentially added into a 500ml three-necked flask, then the 500ml three-necked flask is heated in a 90℃ oil bath, then ethanol is added to the heated 500ml three-necked flask for purification, and the purified reaction product is precipitated, vacuum dried to obtain polyvinyl alcohol; the weight fraction ratio of the polyvinyl alcohol foam plastic to the ethanol is 14.2-16.1:4.7-5.3; S103, 170g of deionized water is added into a 500ml three-necked flask, then the 500ml three-necked flask is heated in a 85℃ water bath, the polyvinyl alcohol is added into the heated 500ml three-necked flask, and stirred at 85℃ water bath for 1.5h, after stirring, the artemisia sphaerocephala krasch gum is added into the 500ml three-necked flask, and stirred at 75℃ water bath for 1.5h, after stirring, a first component is obtained; S104, 55.86g of deionized water is added into a 100ml three-necked flask, then the 100ml three-necked flask is heated in a 55℃ water bath, then the surface active agent is added into the heated 100ml three-necked flask under N2 protection, and stirred at 55℃ water bath, after stirring, the pure acrylic emulsion is added into the 100ml three-necked flask for dispersion for 10min, after dispersion, the initiator is added into the 100ml three-necked flask, and copolymerization reaction is carried out for 2h, after reaction, a second component is obtained; S105, the first component and the second component are mixed and stirred uniformly under constant temperature condition to obtain a hydrogel, the hydrogel is diluted with water, so that the solid content of the hydrogel is 1%, and the environment-friendly dust suppressant is obtained.

[0036] Among them, the water in the water dilution is at least one of the following: natural water or natural water.

[0037] Specifically, the application provides a preparation method of a new type of ecological restoration hydrogel type environment-friendly dust suppressant, appropriate amounts of artemisia sphaerocephala krasch gum, polyvinyl alcohol foam plastic, pure acrylic emulsion and a surface active agent are weighed, polyvinyl alcohol in the polyvinyl alcohol foam plastic is purified by using ethanol, then the polyvinyl alcohol is reacted with the artemisia sphaerocephala krasch gum to obtain a first component, the surface active agent and the pure acrylic emulsion are copolymerized under the action of an initiator to obtain a second component, and finally the first component and the second component are uniformly mixed to obtain a hydrogel, and the environment-friendly dust suppressant is obtained after dilution with water, the environment-friendly dust suppressant prepared by the application has excellent moisture absorption and moisture retention performance, can promote seed germination in soil, maintain seed vitality, promote plant seedling growth and improve the environment.

[0038] In some possible implementation manners, the polyvinyl alcohol foam plastic comprises waste polyvinyl alcohol foam plastic.

[0039] In some possible implementation manners, the solid content of the pure acrylic emulsion is 30%-35%, the pure acrylic emulsion comprises butyl acrylate, hydroxyethyl acrylate and a neutralizing component, the neutralizing component comprises acrylic acid and sodium hydroxide in a weight ratio of 1:1, the weight ratio of the butyl acrylate, the hydroxyethyl acrylate and the neutralizing component is 1:1:1, the initiator is ammonium persulfate, and the addition amount of the initiator is 0.2% of the mass of the pure acrylic emulsion.

[0040] As can be understood by those skilled in the art, by using ammonium persulfate as the initiator and controlling the addition amount, the surface active agent and the pure acrylic emulsion can be quickly polymerized, and the environment-friendly dust suppressant is convenient and safe to use.

[0041] In some possible implementation manners, the surface active agent comprises Span 80 and sodium dodecyl benzene sulfonate, and the weight ratio of the Span 80 and the sodium dodecyl benzene sulfonate is 2:1.

[0042] In some possible implementation manners, the preparation method comprises the following steps: weighing 1.3 parts of artemisia sphaerocephala krasch gum, 14.7 parts of polyvinyl alcohol foam plastic, 79.8 parts of pure acrylic emulsion and 2.8 parts of a surface active agent according to weight fraction.

[0043] This is because the component ratio of the environment-friendly dust suppressant is optimal by weighing 1.3 parts of artemisia sphaerocephala krasch gum, 14.7 parts of polyvinyl alcohol foam plastic, 79.8 parts of pure acrylic emulsion and 2.8 parts of a surface active agent according to weight fraction, and thus the performance of the environment-friendly dust suppressant obtained is optimal.

[0044] It needs to be explained that the preparation method of the new type of ecological restoration hydrogel type environment-friendly dust suppressant provided in this embodiment 2 is the preparation method of the environment-friendly dust suppressant described in embodiment 1, and the implementation principle and technical concept are completely the same as those of embodiment 1, so the part not described in detail in this embodiment 2 can be referred to embodiment 1, and will not be repeated here.

[0045] In order to further illustrate the technical solutions of the present application to support the technical problems to be solved by the present application, the preparation method of the new type of ecological restoration hydrogel type environment-friendly dust suppressant will be specifically illustrated as follows, such as embodiment 3.

[0046] Embodiment 3

[0047] The new type of ecological restoration hydrogel type environment-friendly dust suppressant is prepared by the following method.

[0048] According to the weight fraction, 1.3g of artemisia gel, 14.7g of waste polyvinyl alcohol foam plastic, 79.8g of pure acrylic emulsion and 2.8g of surface active agent are weighed; the solid content of the pure acrylic emulsion is 30%-35%, the pure acrylic emulsion includes butyl acrylate, hydroxyethyl acrylate and neutralizing component, the neutralizing component includes acrylic acid and sodium hydroxide with a weight fraction ratio of 1:1, the weight fraction ratio of butyl acrylate, hydroxyethyl acrylate and neutralizing component is 1:1:1; the surface active agent includes Span 80 and sodium dodecyl benzene sulfonate, and the weight fraction ratio of Span 80 and sodium dodecyl benzene sulfonate is 2:1;

[0049] The waste polyvinyl alcohol foam plastic is cut into blocks, the blocky waste polyvinyl alcohol foam plastic and 200mL of water are sequentially added into a 500mL three-necked flask, then the 500mL three-necked flask is heated in a 90℃ oil bath, ethanol is added to the heated 500mL three-necked flask for purification, and the purified reaction product is precipitated, vacuum dried to obtain polyvinyl alcohol; the weight fraction ratio of the waste polyvinyl alcohol foam plastic to the ethanol is 14.7:5;

[0050] 170g of deionized water is added into a 500mL three-necked bottle, and the 500mL three-necked bottle is heated in a 85℃ water bath, the polyvinyl alcohol is slowly and uniformly added into the heated 500mL three-necked bottle, and stirred for 1.5h under the condition of 85℃ water bath, after stirring is completed, the artemisia gel is slowly and uniformly added into the 500mL three-necked bottle, and stirred for 1.5h under the condition of 75℃ water bath, and the first component is obtained after stirring is completed;

[0051] Into a 100 mL three-necked flask, 55.86 g of deionized water was added, and then the 100 mL three-necked flask was placed in a 55℃ water bath for heating. After heating, the surfactant was added into the 100 mL three-necked flask under N2 protection, and stirring was performed under the condition of a 55℃ water bath. After uniform stirring, the pure acrylic emulsion was added into the 100 mL three-necked flask for dispersion for 10 min. After dispersion, ammonium persulfate was added into the 100 mL three-necked flask for copolymerization for 2 h. After reaction, the second component was obtained. The addition amount of the ammonium persulfate was 0.2% of the mass of the pure acrylic emulsion.

[0052] The first component and the second component were mixed and uniformly stirred under constant temperature conditions to obtain a hydrogel. The hydrogel was diluted with water to obtain a solid content of 1% of the hydrogel, and the environment-friendly dust suppressant was obtained.

[0053] The dust suppression effect test was performed on the environment-friendly dust suppressant obtained in Example 3, and the detection method and results are as follows:

[0054] Five portions of the environment-friendly dust suppressant obtained in Example 3 were taken, and were diluted by 2, 4, 6, 8 and 10 times by weight, respectively. On a dust-suppressed road surface in a certain development zone, 2 L / m2, 4 L / m2, 6 L / m2, 8 L / m2 and 10 L / m2 of the diluted dust suppressant were sprayed, respectively, by a water spraying vehicle, and the dust suppression effect of the environment-friendly dust suppressant was observed. 2 Spraying was performed to a road surface of 50 m2. 2 According to the national standard “GB / T 15432-1995 Determination of total suspended particulate matter in ambient air-gravimetric method”, the TSP concentrations before and after spraying the diluted 2 times, the diluted 4 times, the diluted 6 times, the diluted 8 times and the diluted 10 times dust suppressant in Example 3 were monitored, to illustrate the beneficial effect of the dust suppressant, and the results are shown in Table 1.

[0055] Table 1

[0056]

[0057] As shown in Table 1, the dust suppression effect of the environment-friendly dust suppressant obtained in Example 3 is optimal when diluted by 4-6 times, and the TSP dust suppression efficiency can be maintained above 80% within 120 hours. Even if the environment-friendly dust suppressant obtained in Example 3 is diluted by 10 times, the TSP dust suppression efficiency can also be maintained above 70% for 90 hours. It can be seen that the dust suppression effect of the environment-friendly dust suppressant prepared by the present application is excellent.

[0058] It should be noted that the ethanol used in the present application is analytical pure (AR grade) ethanol, the Span 80 used is analytical pure (AR grade) Span 80, and the sodium dodecyl benzene sulfonate used is analytical pure (AR grade) sodium dodecyl benzene sulfonate.

[0059] Finally, it should be noted that the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0060] While the preferred embodiments of the application have been described, additional variations and modifications can be made to the preferred embodiments by those of skill in the art once they have the benefit of the present disclosure without departing from the spirit and scope of the application. Accordingly, the appended claims are intended to encompass within their scope all such variations and modifications as are within the scope of the application.

[0061] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A preparation method of a novel ecological restoration hydrogel type environment-friendly dust suppressant, characterized in that, The preparation method comprises the following steps: 0.7-1.3 parts of the sand sage glue, 14.2-16.1 parts of the polyvinyl alcohol foam plastic, 77-79.8 parts of the pure acrylic emulsion and 2.8-2.9 parts of the surfactant are weighed according to the weight fraction; The polyvinyl alcohol foam plastic is cut into blocks, the blocky polyvinyl alcohol foam plastic and 200 mL of water are sequentially added into a 500 mL three-neck flask, then the 500 mL three-neck flask is heated in a 90℃ oil bath, ethanol is added into the heated 500 mL three-neck flask for purification, and the purified reaction product is precipitated and vacuum dried to obtain polyvinyl alcohol; the weight fraction ratio of the polyvinyl alcohol foam plastic to the ethanol is 14.2-16.1:4.7-5.3; 170 g of deionized water is added into a 500 mL three-neck flask, the 500 mL three-neck flask is heated in a 85℃ water bath, the polyvinyl alcohol is added into the heated 500 mL three-neck flask and stirred at 85℃ water bath for 1.5 h, after the stirring is completed, the sand sage glue is added into the 500 mL three-neck flask and stirred at 75℃ water bath for 1.5 h, and the first component is obtained after the stirring is completed; 55.86 g of deionized water is added into a 100 mL three-neck flask, the 100 mL three-neck flask is heated in a 55℃ water bath, the surfactant is added into the heated 100 mL three-neck flask under N2 protection, and stirred at 55℃ water bath, after the stirring is uniform, the pure acrylic emulsion is added into the 100 mL three-neck flask for dispersion for 10 min, the initiator is added into the 100 mL three-neck flask for copolymerization reaction for 2 h, and the second component is obtained after the reaction is completed; The first component and the second component are mixed and stirred uniformly under constant temperature condition to obtain a hydrogel, the hydrogel is diluted with water to make the solid content of the hydrogel 1%, and the environment-friendly dust suppressant is obtained; The polyvinyl alcohol foam plastic comprises waste polyvinyl alcohol foam plastic; The solid content of the pure acrylic emulsion is 30%-35%, the pure acrylic emulsion comprises butyl acrylate, hydroxyethyl acrylate and a neutralizing component, the neutralizing component comprises acrylic acid and sodium hydroxide in a weight fraction ratio of 1:1, the weight fraction ratio of the butyl acrylate, the hydroxyethyl acrylate and the neutralizing component is 1:1:1; the initiator is ammonium persulfate, and the adding amount of the initiator is 0.2% of the mass of the pure acrylic emulsion.

2. The preparation method according to claim 1, characterized in that: The surfactant comprises Span 80 and sodium dodecyl benzene sulfonate, and the weight fraction ratio of the Span 80 and the sodium dodecyl benzene sulfonate is 2:

1.

3. The method of claim 2, wherein, The preparation method comprises the following steps: 1.3 parts of the sand sage glue, 14.7 parts of the polyvinyl alcohol foam plastic, 79.8 parts of the pure acrylic emulsion and 2.8 parts of the surfactant are weighed according to the weight fraction.

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