CN109180856A - A kind of dust suppressant and preparation method thereof for open storage ground - Google Patents
A kind of dust suppressant and preparation method thereof for open storage ground Download PDFInfo
- Publication number
- CN109180856A CN109180856A CN201810939758.XA CN201810939758A CN109180856A CN 109180856 A CN109180856 A CN 109180856A CN 201810939758 A CN201810939758 A CN 201810939758A CN 109180856 A CN109180856 A CN 109180856A
- Authority
- CN
- China
- Prior art keywords
- dust suppressant
- open storage
- monomer
- storage ground
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/26—Emulsion polymerisation with the aid of emulsifying agents anionic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/30—Emulsion polymerisation with the aid of emulsifying agents non-ionic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention is a kind of dust suppressant and preparation method thereof for open storage ground.The dust suppressant is prepared by emulsion copolymerization technology, and raw material includes oleic series monomer mix monomer, organic silicon monomer, silica solution, emulsifier, initiator, buffer and water.The present invention is free of volatile organic matter using water as medium, is free of formaldehyde, aromatic compound, and dust suppressant does not have corrosivity and secondary pollution.Organic silicon monomer, silica solution improve the hydrophobicity of lotion, and the hardness and impact water in corrosion resistance after stockyard powder crust are improved, and effectively control the fugitive dust of building materials powder, mineral powder or coal-fired powder open storage ground.
Description
Technical field
The present invention relates to the dust suppressant in open storage ground Dust Improvement field, especially a kind of the third cream of silicon for open storage ground
Liquid dust suppressant and preparation method thereof.
Background technique
Most of the northern region of China is dry, building materials powder, mineral powder and coal-fired powder open storage ground without group
Discharge is knitted, not only causes loss of material, but also pollute surrounding enviroment.Control steam power plant, coal yard, cement plant, steel plant, municipal administration
Construction, goods yard, the most common dust-suppression method of pier storage yard fugitive dust are waterings, improve density to increase the method for dust water content,
To increase dirt wind-force.It sprinkles water easy to operate, but moisture anti-evaporating ability is poor, effective dust suppression time is short, and winter is easy to freeze.
Dust suppressant is used for traditional watering dust suppression operation, the interaction between hydrone and particulate matter can be improved,
Significantly improve the ability of capture dust particles.CN104726064, CN101003721, CN104726064, CN103242805 are public
The dust suppressant and preparation method thereof of suitable open storage ground is opened.The cost of calcium chloride, magnesium chloride, aluminium chloride, sodium sulphate, waterglass
It is low, antifreezing effect is good, but exist corrosion metal, contaminated soil, influence plant growth the problems such as.Ethylene glycol, glycerine and its spread out
Biology, which has, to be absorbed moisture, keeps moisture and the subzero effect of drop, but durability is poor, not resistance of rainwater washing against, exists simultaneously
VOC secondary pollution.Coal tar, cinder oil, wooden slag oil, shale residual oil, light oil, heavy oil, coal tar, soft resin and fluxed bitumen
There are preferable infiltration, bonding effect to dust particles surface, anti-dust effect is good, but the condensed-nuclei aromatics content of this substance is high, face
Color depth, smell weight, secondary pollution are prominent.
A kind of dust suppressant and preparation method thereof for open storage ground of invention.The dust suppressant is by acrylic acid series
The silicone acrylic emulsion that list body, organic silicon monomer and silica solution are prepared by polymerization technique, by ionic bond, hydrogen bond and Van der Waals
Power, absorption fugitive dust particle simultaneously play bridging action between particles, little particle are agglomerated for bulky grain, because foring netted three
Structure is tieed up, the shell that dust particale is formed has better hardness and impact water in corrosion resistance, to effectively inhibit open storage ground fugitive dust.
Summary of the invention
The dust suppressant and preparation method thereof that the purpose of the present invention is to provide a kind of for open storage ground.The dust suppressant be by
The silicone acrylic emulsion that oleic series mix monomer, organic silicon monomer and silica solution are prepared by polymerization technique.It is single using water as medium
The polymerizate of body is free of volatility low molecule organic matter, and VOC hidden danger is not present；The dust suppressant without formaldehyde, aromatic compound,
High volence metal ion, without metal protection, environmental safety is good；Polymer in lotion passes through bridging action for fugitive dust
Grain cohesion is bulky grain, and then is consolidated, shelling.By the crosslinked action of the hydrophobic effect, silica solution of organosilicon, fugitive dust granulated
At shell have better hardness and impact water in corrosion resistance, effectively inhibit open storage ground fugitive dust.
Technical solution of the present invention is realized are as follows:
A kind of dust suppressant for open storage ground, it is characterized in that the dust suppressant is prepared by emulsion copolymerization, raw material includes third
Olefin(e) acid series mix monomer, organic silicon monomer, silica solution, emulsifier, initiator, buffer and water, raw material proportioning are as follows:
The raw material further includes neutralizer, and the amount of neutralizer is to adjust the pH value of reaction system to neutrality.
The mix monomer is oleic series monomer, including acrylic acid, methacrylic acid, butyl acrylate, methyl
Methyl acrylate, glycidyl acrylate, hydroxy-ethyl acrylate, hydroxypropyl acrylate, triethylene glycol double methacrylate, three hydroxyls
It is two or more in propane tri.
The organic silicon monomer is that vinyltriethoxysilane, vinyl methyl diethoxy silane, γ-shrink are sweet
In oily ether oxygen propyl trimethoxy silicane (KH-560), γ-methacryloxypropyl trimethoxy silane (KH-570)
It is one or more.
The silica solution is modified silicasol treated with coupling agent.
The emulsifier is the mixture of non-APEO anionoid emulsifier and non-APEO class nonionic emulsifier, wherein
Non- APEO anionoid emulsifier: non-APEO class nonionic emulsifier mass ratio=1~2: 1；The anion of the non-APEO class
Emulsifier is one of sodium alkyl sulfate SDS, alkyl polyoxyethylene ether sulfate D-360, D-828, D-830, D-845 or more
Kind；The nonionic emulsifier of the non-APEO class is one of alkyl polyoxyethylene ether 15S-20, F-3280, F-3365 or more
Kind.
The initiator is one or both of potassium peroxydisulfate, ammonium persulfate, is added as an aqueous solution；Described
Buffer is one or both of sodium bicarbonate and sodium acetate, is added in solid form；The neutralizer is sodium hydroxide
One of with potassium hydroxide, it is added as an aqueous solution；The water is distilled water or tap water.
The dust suppressant preparation method, comprising the following steps:
(1) buffer, silica solution, emulsifier and water are added into reactor, opens stirring, nitrogen is replaced 20 minutes, water
When bath is heated to 60-80 DEG C, initiator solution is added, mix monomer was then at the uniform velocity added dropwise at 2.5-4.0 hours；
(2) when mix monomer is added dropwise to remaining 10%-50%, start that organic silicon monomer is at the uniform velocity added dropwise；
(3) after the completion of the single addition with organic silicon monomer of mixing, it is cooled to room temperature after keeping the temperature 1-2 hours at 85-95 DEG C, is added
Entering neutralizer makes the pH value of reaction system to neutrality, and discharging obtains the dust suppressant for open storage ground.
In the step (2), the surplus of mix monomer is 10%-20%.
The beneficial effects of the present invention are:
(1) open storage ground dust suppressant of the invention is using water as medium, is free of volatility low molecule organic matter, without formaldehyde,
Aromatic compound, high volence metal ion, dust suppressant do not have corrosivity and secondary pollution, and environmental safety is good.
(2) open storage ground dust suppressant of the invention uses Functional silicones monomer, silica solution, and hydrophobicity improves, heap
Hardness and impact water in corrosion resistance after the powder crust of field are improved.
(3) open storage ground dust suppressant of the invention effectively controls building materials powder, mineral in a manner of adsorbing, soak and be bonded
The fugitive dust of powder or coal-fired powder open storage ground.
(4) open storage ground dust suppressant of the invention is suitble to outdoor use, its impact water in corrosion resistance is better than acrylate and vinyl acetate emulsion and routine
Pure-acrylic emulsion, excellent weather resistance and hard is in styrene-acrylic emulsion.
Specific embodiment
The present invention is further illustrated below with reference to embodiment:
Embodiment 1
0.6g sodium bicarbonate, 3g silicon are added into the reactor equipped with blender, thermometer, dropping funel and nitrogen conduit
Colloidal sol, 1g emulsifier SDS, 0.5g emulsifier D-360,1.2g emulsifier 15S-20 and 100g distilled water, under stirring nitrogen
Gas is replaced 30 minutes, and warming-in-water is continuous to be added dropwise by 4g acrylic acid, 19g butyl acrylate, the double propylene of 2g triethylene glycol to 80 DEG C
The mix monomer that acid esters, 3g glycidyl acrylate and 5g hydroxy-ethyl acrylate are prepared.It is dripped simultaneously in monomer is added dropwise
Adding 8g mass concentration is 5% ammonium persulfate aqueous solution.When mix monomer is added dropwise to residue 20%, start to be added dropwise by 2.0g ethylene
The organic silicon monomer that ethyl triethoxy silicane alkane and 0.8g γ-glycidyl ether oxygen propyl trimethoxy silicane are prepared.Control is added dropwise
Progress is added dropwise for 3.0 hours.System is warming up to 87 DEG C after monomer dropping, keeps the temperature 1.5 hours.System is down to room
The pH value of above-mentioned reaction system is adjusted to 7.5 with the sodium hydroxide that mass concentration is 5.0%, one kind as of the invention by temperature
Open storage ground dust suppressant.
Measurement crust hardness: weighing the coal dust that 150 gram particle degree are 100 mesh and adding to diameter is to be compacted in the culture dish of 12cm.
The tap water of 15 times of quality of the silicone acrylic emulsion dust suppressant of embodiment is diluted, 50g diluting emulsion is taken to spray sample, 25 DEG C of constant temperature
Shore D hardness is tested after drying.Hardness is bigger, and the intensity of dust crust is higher, and anti-dust effect is better.
It evaluates impact water in corrosion resistance energy: 2 groups of samples is prepared according to the method for measurement crust hardness.One group for measuring crust hardness
D1, tap water impregnates 24 hours another set at room temperature, measures crust hardness D after natural drying in the same way2.With two
The ratio between person D2/D1Impact water in corrosion resistance energy is evaluated, the value is bigger, and resistance to water erosion is better.
Embodiment 2
Other steps are the same as embodiment 1, difference are as follows: γ-glycidyl ether oxygen propyl trimethoxy silicane dosage is 0g；
The dosage of silica solution increases to 3.8g；Coal dust replaces with iron ore powder.
Method of evaluating performance is the same as embodiment 1.
Embodiment 3
0.4g sodium bicarbonate, 4.2g are added into the reactor equipped with blender, thermometer, dropping funel and nitrogen conduit
Silica solution, 1.5g emulsifier D-828,0.8g emulsifier D-830,1.0g emulsifier F-3280,100g distilled water, are stirring help
Lower nitrogen is replaced 30 minutes, and warming-in-water is continuous to be added dropwise by 4g methacrylic acid, 3g methyl methacrylate, 16g third to 80 DEG C
Olefin(e) acid butyl ester, 2g trimethylolpropane trimethacrylate, 3g glycidyl acrylate and 5g hydroxypropyl acrylate are prepared mixed
Close monomer.Therebetween, the persulfate aqueous solution that 15g mass concentration is 2.2% is added dropwise simultaneously in monomer is added dropwise.Mixing is single
When body is added dropwise to residue 20%, start to be added dropwise by 1.7g vinyl methyl diethoxy silane and 1.3g γ-methacryloxypropyl
The organic silicon monomer that base propyl trimethoxy silicane is prepared.Dropwise addition progress is controlled, is added dropwise within 3.0 hours.Monomer dropping terminates
System is warming up to 90 DEG C afterwards, keeps the temperature 1.5 hours.System is down to room temperature, it will be upper with the sodium hydroxide that mass concentration is 5.0%
The pH value for stating reaction system is adjusted to 7.5, a kind of open storage ground dust suppressant as of the invention.
Method of evaluating performance is the same as embodiment 1.
Comparative example
Implementation steps are the same as embodiment 3, difference are as follows: the dosage of silica solution is 0g.
Method of evaluating performance is the same as embodiment 1.
A kind of dust suppressant anti-dust effect of open storage ground of the subordinate list present invention
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example | |
| Dirt source | Coal dust | Iron ore powder | Backfill | Backfill |
| State | Milky white liquid | Milky white liquid | Milky white liquid | Milky white liquid |
| Crust hardness D1 | 43 | 48 | 50 | 45 |
| Crust hardness D2 | 38 | 41 | 42 | 28 |
| D2/D1 | 88.4% | 85.4% | 84.0% | 72.2% |
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
A specific embodiment of the invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from present inventive concept, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by institute
Claims of submission determine scope of patent protection.
Unaccomplished matter of the present invention is well-known technique.
Claims (5)
1. a kind of dust suppressant for open storage ground, it is characterized in that the dust suppressant is prepared by emulsion copolymerization, raw material includes propylene
Sour series mix monomer, organic silicon monomer, silica solution, emulsifier, initiator, buffer and water, raw material proportioning are as follows:
The raw material further includes neutralizer, and the amount of neutralizer is to adjust the pH value of reaction system to neutrality；
The mix monomer is oleic series monomer, including acrylic acid, methacrylic acid, butyl acrylate, metering system
Sour methyl esters, glycidyl acrylate, hydroxy-ethyl acrylate, hydroxypropyl acrylate, triethylene glycol double methacrylate, trihydroxy methyl
It is two or more in propane triacrylate；
The initiator is one or both of potassium peroxydisulfate, ammonium persulfate, is added as an aqueous solution；The buffering
Agent is one or both of sodium bicarbonate and sodium acetate, is added in solid form；The neutralizer is sodium hydroxide and hydrogen
One of potassium oxide is added as an aqueous solution；The water is distilled water or tap water；
The preparation method of the dust suppressant of the open storage ground, comprising the following steps:
(1) buffer, silica solution, emulsifier and water are added into reactor, opens stirring, nitrogen is replaced 20 minutes, and water-bath adds
When heat is to 60-80 DEG C, initiator solution is added, then the at the uniform velocity dropwise addition mix monomer at 2.5-4.0 hour；
(2) when mix monomer is added dropwise to remaining 10%-50%, start that organic silicon monomer is at the uniform velocity added dropwise；
(3) after the completion of the single addition with organic silicon monomer of mixing, 1-2 hours is kept the temperature at 85-95 DEG C and is cooled to room temperature later, in addition
Make the pH value of reaction system to neutrality with agent, discharging obtains the dust suppressant for open storage ground.
2. the dust suppressant of open storage ground is used for as described in claim 1, it is characterized in that the organic silicon monomer is vinyl
Triethoxysilane, vinyl methyl diethoxy silane, γ-glycidyl ether oxygen propyl trimethoxy silicane (KH-560),
One of γ-methacryloxypropyl trimethoxy silane (KH-570) or a variety of.
3. the dust suppressant of open storage ground is used for as described in claim 1, it is characterized in that the silica solution is by coupling agent
The modified silicasol of processing.
4. the dust suppressant of open storage ground is used for as described in claim 1, it is characterized in that the emulsifier is non-APEO class yin
The mixture of ionic emulsifying agent and non-APEO class nonionic emulsifier, wherein non-APEO anionoid emulsifier: non-APEO class is non-
Ionic emulsifying agent mass ratio=1~2: 1；The anion emulsifier of the non-APEO class is sodium alkyl sulfate SDS, alkyl polyoxy second
One of alkene ether sulphate D-360, D-828, D-830, D-845 or a variety of；The nonionic emulsifier of the non-APEO class is
One of alkyl polyoxyethylene ether 155-20, F-3280, F-3365 or a variety of.
5. it is used for the dust suppressant of open storage ground as described in claim 1, it is characterized in that it is characterized in that in the step (2),
The surplus of mix monomer is 10%-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939758.XA CN109180856A (en) | 2018-08-17 | 2018-08-17 | A kind of dust suppressant and preparation method thereof for open storage ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939758.XA CN109180856A (en) | 2018-08-17 | 2018-08-17 | A kind of dust suppressant and preparation method thereof for open storage ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109180856A true CN109180856A (en) | 2019-01-11 |
Family
ID=64918585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810939758.XA Pending CN109180856A (en) | 2018-08-17 | 2018-08-17 | A kind of dust suppressant and preparation method thereof for open storage ground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109180856A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704892A (en) * | 2020-06-18 | 2020-09-25 | 南京大学 | Composite polymer dust inhibitor and preparation method and application thereof |
| CN114200081A (en) * | 2021-12-02 | 2022-03-18 | 河北交规院瑞志交通技术咨询有限公司 | Dust suppression efficiency measuring device and measuring method for dust suppressant |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731735A (en) * | 2012-06-05 | 2012-10-17 | 华南理工大学 | Organosilicon modified silica sol/polyacrylate composite emulsion and its preparation method |
| CN106010447A (en) * | 2016-05-30 | 2016-10-12 | 鄂尔多斯市神东天隆化工有限责任公司 | Coal dust inhibitor, and method for inhibiting coal transport flying-dusts |
| WO2018112662A1 (en) * | 2016-12-23 | 2018-06-28 | Trican Well Service Ltd. | Oil-based dust suppression composition and method of use |
-
2018
- 2018-08-17 CN CN201810939758.XA patent/CN109180856A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731735A (en) * | 2012-06-05 | 2012-10-17 | 华南理工大学 | Organosilicon modified silica sol/polyacrylate composite emulsion and its preparation method |
| CN106010447A (en) * | 2016-05-30 | 2016-10-12 | 鄂尔多斯市神东天隆化工有限责任公司 | Coal dust inhibitor, and method for inhibiting coal transport flying-dusts |
| WO2018112662A1 (en) * | 2016-12-23 | 2018-06-28 | Trican Well Service Ltd. | Oil-based dust suppression composition and method of use |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704892A (en) * | 2020-06-18 | 2020-09-25 | 南京大学 | Composite polymer dust inhibitor and preparation method and application thereof |
| CN111704892B (en) * | 2020-06-18 | 2021-09-10 | 南京大学 | Composite polymer dust inhibitor and preparation method and application thereof |
| CN114200081A (en) * | 2021-12-02 | 2022-03-18 | 河北交规院瑞志交通技术咨询有限公司 | Dust suppression efficiency measuring device and measuring method for dust suppressant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109415618B (en) | Efficient environment-friendly dust suppressant and preparation method and application thereof | |
| CN104693339B (en) | Water-based dust depressor and preparation method thereof | |
| CN111662679B (en) | Composite ecological visual dust suppressant and preparation method and application thereof | |
| CN111117568B (en) | Ecological dust suppressant for surface mine dust control and preparation method thereof | |
| CN105646794B (en) | The preparation method and application of collapse protection type phosphate super plasticizer | |
| NL2030769B1 (en) | Calcium carbonate based inorganic coating, preparation method and application method | |
| CN108455900A (en) | Pervious concrete and its preparation process, paving process | |
| CN108559449B (en) | High-dilution-ratio aqueous liquid dust suppressant and preparation and use methods thereof | |
| WO2006063729A1 (en) | Process for the stabilization of dusting surfaces | |
| CN109180856A (en) | A kind of dust suppressant and preparation method thereof for open storage ground | |
| CN111111571B (en) | Microcapsule stopping agent foam gel material for preventing coal spontaneous combustion and preparation method thereof | |
| CN106479101A (en) | A kind of moisture-absorbing moisture-keeping type is combined small particle Fugitive dust inhibiting agent and preparation method thereof | |
| CN101648792A (en) | Protecting mortar of express highway roadbed surface hard-face terrace | |
| CN109053048A (en) | A kind of concrete and its preparation process | |
| CN109111547A (en) | A kind of silicone modified acrylic emulsion waterproofing agent and the preparation method and application thereof | |
| CN106034458A (en) | Method for preventing red mud stacking field from dust and environment pollution | |
| CN105503066A (en) | Polymer waterproof mortar and application thereof | |
| CN106431073A (en) | Pervious concrete additive and preparation method thereof | |
| CN105646767B (en) | A kind of concrete super absorbent resin epoxy-type Self-curing material and preparation method | |
| US20020152933A1 (en) | Compositions for treating soils, the process for their preparation and the use thereof | |
| CN1027687C (en) | Covering agent for coal and powder material heap | |
| CN107603110A (en) | A kind of branched chain type suppression mud polycarboxylate water-reducer, its preparation method and application | |
| CN105199672A (en) | Method for inhibiting dust or flying dust | |
| CN105294161A (en) | Unsaturated siloxane group phosphate emulsion concrete curing agent and preparation method thereof | |
| CN114479764B (en) | Polycarboxylic acid high-efficiency dust suppressant and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190111 |
|
| WD01 | Invention patent application deemed withdrawn after publication |