CN112852383B - Highway engineering dust suppressant and preparation method thereof - Google Patents
Highway engineering dust suppressant and preparation method thereof Download PDFInfo
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- CN112852383B CN112852383B CN202110278985.4A CN202110278985A CN112852383B CN 112852383 B CN112852383 B CN 112852383B CN 202110278985 A CN202110278985 A CN 202110278985A CN 112852383 B CN112852383 B CN 112852383B
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- 239000000428 dust Substances 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 238000007596 consolidation process Methods 0.000 claims abstract description 18
- 229920000620 organic polymer Polymers 0.000 claims abstract description 12
- 229910017053 inorganic salt Inorganic materials 0.000 claims abstract description 11
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 16
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 15
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 15
- 239000000661 sodium alginate Substances 0.000 claims description 15
- 235000010413 sodium alginate Nutrition 0.000 claims description 15
- 229940005550 sodium alginate Drugs 0.000 claims description 15
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 15
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 14
- 229920001661 Chitosan Polymers 0.000 claims description 13
- 235000011187 glycerol Nutrition 0.000 claims description 13
- VFKZECOCJCGZQK-UHFFFAOYSA-M 3-hydroxypropyl(trimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCCO VFKZECOCJCGZQK-UHFFFAOYSA-M 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 108010010803 Gelatin Proteins 0.000 claims description 7
- VSGNNIFQASZAOI-UHFFFAOYSA-L calcium acetate Chemical compound [Ca+2].CC([O-])=O.CC([O-])=O VSGNNIFQASZAOI-UHFFFAOYSA-L 0.000 claims description 7
- 239000001639 calcium acetate Substances 0.000 claims description 7
- 235000011092 calcium acetate Nutrition 0.000 claims description 7
- 229960005147 calcium acetate Drugs 0.000 claims description 7
- 229920000159 gelatin Polymers 0.000 claims description 7
- 239000008273 gelatin Substances 0.000 claims description 7
- 235000019322 gelatine Nutrition 0.000 claims description 7
- 235000011852 gelatine desserts Nutrition 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 6
- UEGPKNKPLBYCNK-UHFFFAOYSA-L magnesium acetate Chemical compound [Mg+2].CC([O-])=O.CC([O-])=O UEGPKNKPLBYCNK-UHFFFAOYSA-L 0.000 claims description 6
- 239000011654 magnesium acetate Substances 0.000 claims description 6
- 235000011285 magnesium acetate Nutrition 0.000 claims description 6
- 229940069446 magnesium acetate Drugs 0.000 claims description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 5
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 4
- 239000004302 potassium sorbate Substances 0.000 claims description 4
- 235000010241 potassium sorbate Nutrition 0.000 claims description 4
- 229940069338 potassium sorbate Drugs 0.000 claims description 4
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 3
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 235000010288 sodium nitrite Nutrition 0.000 claims description 3
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910021538 borax Inorganic materials 0.000 claims description 2
- BEFDCLMNVWHSGT-UHFFFAOYSA-N ethenylcyclopentane Chemical compound C=CC1CCCC1 BEFDCLMNVWHSGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000001632 sodium acetate Substances 0.000 claims description 2
- 235000017281 sodium acetate Nutrition 0.000 claims description 2
- 239000001540 sodium lactate Substances 0.000 claims description 2
- 229940005581 sodium lactate Drugs 0.000 claims description 2
- 235000011088 sodium lactate Nutrition 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 claims description 2
- 239000004334 sorbic acid Substances 0.000 claims description 2
- 235000010199 sorbic acid Nutrition 0.000 claims description 2
- 229940075582 sorbic acid Drugs 0.000 claims description 2
- 159000000021 acetate salts Chemical class 0.000 claims 1
- 229920002521 macromolecule Polymers 0.000 claims 1
- 229960000819 sodium nitrite Drugs 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 5
- 230000015271 coagulation Effects 0.000 abstract description 2
- 238000005345 coagulation Methods 0.000 abstract description 2
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- 239000002817 coal dust Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229940072056 alginate Drugs 0.000 description 2
- 235000010443 alginic acid Nutrition 0.000 description 2
- 229920000615 alginic acid Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000003841 chloride salts Chemical class 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention belongs to the technical field of road and engineering dust control, and discloses a highway engineering dust suppressant and a preparation method thereof, wherein the highway engineering dust suppressant comprises the following preparation raw materials: the inorganic salt moisture absorption factor, the organic polymer consolidation factor, the penetrating agent, the stabilizing agent, the glycerol and the water make use of the physical and chemical properties of the components, and the soil layer surface keeps wet and harden for a long time through good moisture absorption, moisture preservation, coagulation and consolidation, so that dust particles are adsorbed and bonded on the road surface on which the dust suppressant is spread, thereby greatly reducing the dust emission of the road engineering site caused by external physical disturbance such as strong wind or vehicle transportation, and radically inhibiting the road dust emission of the engineering site, and playing a role in protecting the environment; the preparation method is simple, the production cost is low, and the obtained dust suppressant can be used for dust emission control on engineering sites or road surfaces.
Description
Technical Field
The invention relates to the technical field of road and engineering dust control, in particular to a highway engineering dust suppressant and a preparation method thereof.
Background
Dust hazard is paid attention to gradually at present, a series of human respiratory diseases can be caused by long-term existence of generated atmospheric particulates, a great amount of continuous dust can also accelerate depreciation speed of engineering field equipment, and meanwhile, environmental visibility is reduced and risk of safety accidents is increased. At present, the main dust suppression means are water spraying or dust suppressant spraying, but water spraying wastes water resources and has short effective time, and most of the dust suppressant is mainly used for the road surface of an open-air mining area at present and is not suitable for the road and engineering environment, and the following three defects are mainly concentrated:
(1) part of performances cannot be guaranteed, dust suppressants developed for mining area coal dust have good wettability with coal dust, and can enable coal dust particles to be bonded and coagulated, but most of highway engineering field soil and coal dust surfaces have different physicochemical properties, and the same effect can not be guaranteed in the field of highway engineering.
(2) Part of the cost is higher, the preparation process is complicated, and the preparation of a plurality of high-performance dust suppressants prepared by high-molecular graft copolymerization is complicated, so that the cost is higher and the economy is worse.
(3) Part of the dust suppressant is seriously polluted, and most of the dust suppressants applied on a large scale at present adopt chloride salt, and chloride ions of the dust suppressant have corrosion effects on substances such as steel materials and the like and are easy to cause chloride ion pollution to soil.
Therefore, it is necessary to provide a road engineering dust suppressant which can ensure good effect of working with dust on engineering sites, has the effects of moisture absorption, water retention and consolidation, is low in cost and environment-friendly, and can control dust raising on engineering sites from the source.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide a highway engineering dust suppressant and a preparation method thereof, wherein the dust suppressant utilizes the physical and chemical properties of all components, keeps the surface of a soil layer wet and harden for a long time through good moisture absorption, moisture preservation, coagulation and consolidation, and adsorbs and bonds dust particles on the road surface paved with the dust suppressant, thereby greatly reducing the dust emission of a highway engineering site caused by external physical disturbance such as strong wind or vehicle transportation, and radically inhibiting the road dust emission of the engineering site to play a role in protecting the environment; the preparation method is simple, the production cost is low, and the obtained dust suppressant can be used for dust emission control on engineering sites or road surfaces.
In order to achieve the above purpose, the present invention is realized by the following technical scheme.
The highway engineering dust suppressant comprises the following preparation raw materials: inorganic salt moisture absorption factor, organic polymer consolidation factor, penetrating agent, stabilizer, glycerin and water.
Preferably, the inorganic salt moisture absorption factor comprises sodium alginate and acetate.
Further preferably, the acetate comprises calcium acetate and/or magnesium acetate.
Preferably, the organic polymer consolidation factor comprises hydroxypropyl trimethyl ammonium chloride chitosan and sodium carboxymethyl cellulose.
Further preferably, the organic polymeric consolidation factor further comprises gelatin.
Preferably, the penetrating agent comprises one or more of sodium dodecyl sulfonate, fatty alcohol polyoxyethylene ether and hexadecyl trimethyl ammonium bromide.
Preferably, the stabilizer comprises one or more of sorbic acid and potassium salt thereof, sodium nitrite, borax and sodium lactate.
Preferably, the water content of the glycerol is less than or equal to 0.5%.
Preferably, the water is tap water meeting the national sanitary standard of domestic drinking water of GB 5749-2006.
Preferably, the raw materials are used in the following amounts: 25 to 30 percent of inorganic salt moisture absorption factor, 0.9 to 2.2 percent of organic polymer consolidation factor, 0.5 to 1 percent of penetrating agent, 0.5 to 3 percent of stabilizing agent, 5 to 8 percent of glycerol and 55.8 to 67.8 percent of water.
Preferably, the mass ratio of the hydroxypropyl trimethyl ammonium chloride chitosan to the sodium carboxymethyl cellulose is 2-3: 0.5 to 1.5.
(II) a preparation method of a highway engineering dust suppressant, which comprises the following steps:
step 1, adding water into a reaction kettle at normal temperature;
step 2, adding inorganic salt moisture absorption factors into the reaction kettle, stirring to be fully dissolved, adding organic polymer consolidation factors, fully stirring and mixing for at least 10 minutes, and continuously adding penetrant, stabilizer and glycerin to be mixed and stirred for at least 20 minutes to be uniformly mixed to obtain a mixture after the components of the organic polymer moisture absorption factors are fully and uniformly dissolved;
and 3, standing the mixture for at least 10min and filling to obtain the highway engineering dust suppressant.
Compared with the prior art, the invention has the beneficial effects that:
1) The invention uses the physical and chemical properties of inorganic salt moisture absorption factors and organic polymer consolidation factors, and the surface of the pavement can keep certain humidity for a long time through moisture absorption, water retention and consolidation to adsorb dust particles, so as to prevent secondary dust emission, form a hardening shell layer with certain strength, prevent dust emission caused by external physical disturbance and solve the dust emission problem of highway engineering from the source.
2) The substances used in the product are environment-friendly and nontoxic components, and have little corrosion to equipment and harm to human bodies; the preparation process of the product is simple, the cost is low, and the complicated preparation and modification stages of raw materials are avoided; the product has long storage time.
3) The invention has simple use and operation, does not produce serious pollution and is harmless to human body; the action time is long and can generally reach about 7 days; acetate and alginate materials are selected for avoiding chloride ion pollution, so that the advantages of low cost and simple preparation are considered successfully under the condition of avoiding chloride ion pollution; the invention has wide application range and can be applied to engineering sites, road surfaces, unpaved road construction sites and the like.
4) After the product is used, compared with the traditional sprinkling dust suppression, the water resource saving rate is more than 90%, and the waste of water resources is avoided to a great extent.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention.
Example 1
A preparation method of a highway engineering dust suppressant comprises the following steps:
step 1, adding 63% of water into a reaction kettle at normal temperature;
step 2, adding 14% sodium alginate and 14% magnesium acetate into a reaction kettle, stirring until the sodium alginate and the magnesium acetate are fully dissolved, adding 0.6% hydroxypropyl trimethyl ammonium chloride chitosan and 0.3% sodium carboxymethyl cellulose, fully stirring and mixing for 15 minutes, and continuously adding 0.6% sodium dodecyl sulfate, 1.5% potassium sorbate and 6% glycerin until the components are fully and uniformly dissolved, and stirring for 20 minutes to obtain a mixture;
and 3, standing the mixture for 10 minutes, and then filling to obtain the highway engineering dust suppressant.
Example 2
A preparation method of a highway engineering dust suppressant comprises the following steps:
step 1, adding 62.3% of water into a reaction kettle at normal temperature;
step 2, adding 14% of calcium acetate and 14% of sodium alginate into a reaction kettle, stirring until the calcium acetate and the sodium alginate are fully dissolved, adding 0.6% of hydroxypropyl trimethyl ammonium chloride chitosan, 0.3% of sodium carboxymethyl cellulose and 0.2% of gelatin, fully stirring and mixing for 15 minutes, and continuously adding 0.6% of sodium dodecyl sulfate, 1% of potassium sorbate and 7% of glycerin, and uniformly stirring for 20 minutes after the components are fully and uniformly dissolved to obtain a mixture;
and 3, standing the mixture for 10 minutes, and then filling to obtain the highway engineering dust suppressant.
Example 3
A preparation method of a highway engineering dust suppressant comprises the following steps:
step 1, adding 56.5% water into a reaction kettle at normal temperature;
step 2, adding 15% of calcium acetate and 15% of sodium alginate into a reaction kettle, stirring to be fully dissolved, adding 1% of hydroxypropyl trimethyl ammonium chloride chitosan and 0.5% of sodium carboxymethyl cellulose, fully stirring and mixing for 12 minutes, and continuously adding 1% of fatty alcohol polyoxyethylene ether, 3% of sodium nitrite and 8% of glycerol to be uniformly mixed and stirred for 24 minutes after the components of the components are fully and uniformly dissolved to obtain a mixture;
and 3, standing the mixture for 12 minutes, and then filling to obtain the highway engineering dust suppressant.
Example 4
A preparation method of a highway engineering dust suppressant comprises the following steps:
step 1, adding 66.2% water into a reaction kettle at normal temperature;
step 2, adding 9% of sodium alginate, 8% of magnesium acetate and 10% of calcium acetate into a reaction kettle, stirring to be fully dissolved, adding 0.6% of hydroxypropyl trimethyl ammonium chloride chitosan and 0.2% of sodium carboxymethyl cellulose, fully stirring and mixing for 14 minutes, and continuously adding 0.5% of hexadecyl trimethyl ammonium bromide, 0.5% of potassium sorbate and 5% of glycerin to be mixed and stirred for 25 minutes to be uniformly mixed to obtain a mixture;
and 3, standing the mixture for 15 minutes, and then filling to obtain the highway engineering dust suppressant.
In the above examples, the water content of glycerin is less than or equal to 0.5%; the water is tap water which accords with the national sanitary standard of the drinking water of GB 5749-2006.
The highway engineering dust suppressant has the following specific effects of various preparation raw materials:
acetate and alginate have good moisture absorption function, the problem of chloride ion pollution caused by using chloride salt in the traditional dust suppressant is avoided, and calcium acetate and magnesium acetate are main components of the CMA snow suppressant, so that ice condensation on the pavement can be prevented.
The hydroxypropyl trimethyl ammonium chloride chitosan and the sodium carboxymethyl cellulose can form a hardened shell layer, so that the water losing speed is slowed down, the captured dust is firmly solidified, the dust emission is reduced, the hardened shell layer has a certain thickness and strength, the dust suppression effect of the film layer can be continuously maintained under the action of a certain external force, the moisture absorption capacity of the hydroxypropyl trimethyl ammonium chloride chitosan is strong, and the effectiveness of the dust suppressant can be further increased; meanwhile, the hydroxypropyl trimethyl ammonium chloride chitosan has good water solubility, and is more favorable for dissolution and spraying compared with chitosan. Besides, the sodium alginate and the sodium carboxymethyl cellulose have synergistic effect, and the mechanical property of the binary film formed by blending and drying the sodium alginate and the sodium carboxymethyl cellulose is more excellent than that of the binary film formed by singly using two monomers, which is mainly due to the hydrogen bond interaction of the sodium alginate and the sodium carboxymethyl cellulose; when the sodium alginate, the carboxymethyl cellulose and the gelatin are blended in a ternary way, the sodium alginate, the sodium carboxymethyl cellulose and the gelatin in the solution are mutually interpenetrated and intertwined and interact through hydrogen bonds, and the-COO in the sodium alginate - with-NH in gelatin 3+ The generated electrostatic effect makes the finally formed film layer show good compatibility, and the addition of gelatin improves the compatibility of sodium alginate and sodium carboxymethylcellulose and improves the mechanical property of the film.
The penetrating agent can reduce the surface tension of a solid-liquid interface, is more beneficial to the penetration of the dust suppressant into soil, makes the formed dust suppressant film thicker, can also make the dust suppressant capture particles in the air more easily, and can also make the dispersion of high polymer substances in the dust suppressant more uniform.
The glycerol component can also play a role in absorbing and retaining water, and the effective time of the product is prolonged.
The stabilizer can prolong the storage time of the dust suppression product.
The main technical indexes of the road engineering dust suppressant products obtained in the embodiments 1-2 of the invention are as follows:
as can be seen from the above table, the highway engineering dust suppressants obtained in the examples 1 and 2 have good moisture absorption, water retention and consolidation functions, and can be used for dust control on the surfaces of roads and engineering sites. The obtained highway engineering dust suppressant can keep the dust suppressing effect for about 7 days after being sprayed once, can be applied on the road surface and the engineering site on a large scale, can slightly improve the concentration of inorganic salt when being used in a low-temperature environment, and is not easy to freeze at low temperature. No toxicity and harm, no corrosion to steel materials on roads or engineering sites, no obvious influence on surrounding vegetation, and environment-friendly products.
The road engineering dust suppressant is simple in use method, and can be directly loaded in a sprinkler for use after being prepared. Can be sprayed according to 2L/m 2 The dust suppression effect can last for about 7 days, and can be adjusted automatically according to actual conditions. The dust duration is related to road conditions and climatic factors, and the spraying time frequency can be adjusted according to specific conditions.
While the invention has been described in detail in this specification with reference to the general description and the specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (5)
1. The highway engineering dust suppressant is characterized by comprising the following preparation raw materials: inorganic salt moisture absorption factors, organic polymer consolidation factors, penetrating agents, stabilizers, glycerol and water; the organic macromolecule consolidation factor comprises hydroxypropyl trimethyl ammonium chloride chitosan and sodium carboxymethyl cellulose;
the inorganic salt moisture absorption factors are sodium alginate and acetate;
the penetrating agent comprises one or more of sodium dodecyl sulfonate, fatty alcohol polyoxyethylene ether and hexadecyl trimethyl ammonium bromide;
the stabilizer comprises one or more of sorbic acid, potassium sorbate, sodium nitrite, borax and sodium lactate;
the raw materials are used in the following amounts: the moisture absorption factor of the inorganic salt is 25% -30%, the consolidation factor of the organic polymer is 0.9% -2.2%, the penetrating agent is 0.5% -1%, the stabilizer is 0.5% -3%, the glycerol is 5% -8%, and the water is 55.8% -67.8%.
2. A road engineering dust suppressant according to claim 1, wherein the acetate salt comprises calcium acetate and/or magnesium acetate.
3. The highway engineering dust suppressant of claim 1, wherein the organic polymeric consolidation factor further comprises gelatin.
4. The highway engineering dust suppressant according to claim 1, wherein the mass ratio of hydroxypropyl trimethyl ammonium chloride chitosan to sodium carboxymethyl cellulose is 2-3: 0.5 to 1.5.
5. A method for preparing a road engineering dust suppressant based on any one of claims 1-4, comprising the steps of:
step 1, adding water into a reaction kettle at normal temperature;
step 2, adding inorganic salt moisture absorption factors into the reaction kettle, stirring to be fully dissolved, adding organic polymer consolidation factors, fully stirring and mixing for at least 10 minutes, and continuously adding penetrant, stabilizer and glycerin to be mixed and stirred for at least 20 minutes to be uniformly mixed to obtain a mixture after the components of the organic polymer moisture absorption factors are fully and uniformly dissolved; wherein the organic polymer consolidation factor comprises hydroxypropyl trimethyl ammonium chloride chitosan and sodium carboxymethyl cellulose;
and 3, standing the mixture for at least 10min and filling to obtain the highway engineering dust suppressant.
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| CN110467907A (en) * | 2019-08-27 | 2019-11-19 | 中南大学 | A kind of environmentally friendly biomass dust suppressant and preparation method thereof |
| CN111500261A (en) * | 2020-05-19 | 2020-08-07 | 安吉国千环境科技有限公司 | Ecological environment-friendly road dust suppressant and preparation method thereof |
| CN111647387A (en) * | 2019-08-09 | 2020-09-11 | 天津绿木鸿涛科技有限公司 | Dust inhibitor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20190144568A1 (en) * | 2016-05-27 | 2019-05-16 | General Electric Company | Chitosan coagulant as a binder and dust control agent |
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| CN104673189A (en) * | 2015-03-05 | 2015-06-03 | 四川大学 | Rapid film-forming dust suppressant for building construction site |
| WO2018176713A1 (en) * | 2017-03-27 | 2018-10-04 | 日东（青岛）研究院有限公司 | Environmentally friendly efficient dust suppression agent, preparation method therefor and use thereof |
| CN111647387A (en) * | 2019-08-09 | 2020-09-11 | 天津绿木鸿涛科技有限公司 | Dust inhibitor |
| CN110467907A (en) * | 2019-08-27 | 2019-11-19 | 中南大学 | A kind of environmentally friendly biomass dust suppressant and preparation method thereof |
| CN111500261A (en) * | 2020-05-19 | 2020-08-07 | 安吉国千环境科技有限公司 | Ecological environment-friendly road dust suppressant and preparation method thereof |
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