CN108441173A - A kind of preparation method of water suction moist type environmental protection dust suppressant - Google Patents
A kind of preparation method of water suction moist type environmental protection dust suppressant Download PDFInfo
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- CN108441173A CN108441173A CN201810288630.1A CN201810288630A CN108441173A CN 108441173 A CN108441173 A CN 108441173A CN 201810288630 A CN201810288630 A CN 201810288630A CN 108441173 A CN108441173 A CN 108441173A
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- 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
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- 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
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
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- 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
- C08F261/00—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00
- C08F261/02—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00 on to polymers of unsaturated alcohols
- C08F261/04—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00 on to polymers of unsaturated alcohols on to polymers of vinyl alcohol
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- 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
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
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- 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
- C08F289/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
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Abstract
The present invention relates to a kind of preparation methods of water suction moist type environmental protection dust suppressant, belong to environmental protection technical field.The great amount of hydroxy group group that the present invention is contained using Bagasse-cellulose, with good hydrophilic hygroscopicity, its unique holey cross-linked structure, it is handled by microwave radiation technology, chemical modification is carried out to bagasse using graft copolymerization technology, and the sodium alginate cross-linking of chain structure is interspersed in reticular structure, it is set to form one layer of closed film on grit surface, moisture evaporation and grit and extraneous contact can effectively be prevented, prepare the high molecular material with half interpenetrating network structure, there is better mobility and water imbibition relative to general network structure hydrogel, final product has stickiness, the fine dusts on surface can be fallen to stick, prevention dust is secondary to be entered in air, product has the performance of moisture-absorption water-retention simultaneously, the effect of wetting covering can be effectively played, prevent airborne dust.
Description
Technical field
The present invention relates to a kind of preparation methods of water suction moist type environmental protection dust suppressant, belong to environmental protection technical field.
Background technology
Airborne dust is considered as a kind of considerably complicated mixing dust, it is difficult to there is specific definition.We can be popular recognize
For airborne dust is that a kind of grain size is smaller, easily starts and flies upward once by outer force effect, and can be again introduced into the particle of air
Object.Airborne dust accounts for sizable ratio in air overall suspended pellet, according to the research and analysis of scientist, air total suspended particles
There is significant correlations between object and human mortality, by inquiry it is found that 1/m3It always suspends containing 100ug air in gas
When particulate matter, human mortality can increase by 6%, and the human mortality with respiratory disorder can increase by 32%, the death rate of asthma
It is 12% to increase, and the angiocardiopathy death rate can also increase by 9%.The study found that air overall suspended pellet includes inhalable particles
Object PM10, maximum to the contribution rate of dust pollution.And PM10Fine particle PM can be divided into again2.5With coarseparticulate PM10-2.5,
The grain size of grain object is smaller, just bigger to the contribution of suspended particulate substance total amount, and harm is also bigger.
It is various to cause the source of dust pollution, and primary pollution source is from following three aspect：（1）Coal is in railway
It due to wind speed and jolts part coal dust is made to enter air in transportational process, cause air pollution and Along Railway environmental degradation.
（2）The easy dust-raising materials such as construction site, miberal powder, ash, sand, stone, dust pollution caused by transport and storage process.（3）It is raw
The dust pollutions caused by transport and storage process such as rubbish living are very important.Place where the garage is piled up nearby not only stinks to high heaven,
And rubbish dances in the air phenomenon and is seen everywhere all over the sky, has seriously affected environment and health.
These pollution sources are multi-point and wide-ranging, and advantageously form the weather and natural conditions of airborne dust（China majority north city,
Year-round average temperature is relatively low, precipitation is on the low side, very cold, be air-dried, wind-force is compared with strong, evaporation capacity is big）, more aggravated airborne dust dirt
Dye, therefore be difficult unified administer.Tradition dust suppressant dust suppression rate is low at present, the anti-dust effect retention time is short, and not environmentally, difficult biology
Degradation, and since Chinese city mostly is in the peak period of infrastructure, manages not perfect in work progress, material heap is blocked not
Sternly, the engineering construction period is longer, and the particulate matter that many is deposited in ground can enter air again, form reentrainment of dust, be good for people
Health and environment can all cause sizable harm.Therefore, the research of dust suppressant dust suppression performance is particularly important.
Invention content
The technical problems to be solved by the invention：It is low for traditional dust suppressant dust suppression rate, the anti-dust effect retention time is short, and
Not environmentally, there is reentrainment of dust in difficult for biological degradation, provide a kind of preparation side of water suction moist type environmental protection dust suppressant
Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
（1）It is added in sodium hydroxide solution after taking bagasse to air-dry crushing and impregnates 10~15h, then with after salt acid for adjusting pH to neutrality
Washing and drying obtains pretreatment bagasse powder；
（2）Neopelex, alkyl phenol polyoxyethylene ether are taken, is added in deionized water and is uniformly mixed, add poly- second
Enol, acrylamide stir 30~40min, obtain monomer emulsion；
（3）It takes pretreatment bagasse powder, sodium alginate to be added in deionized water and stirs 20~30min, and with microwave heating to 50
~60 DEG C of 20~30min of insulated and stirred, obtain bottom liquid；
（4）Ammonium persulfate is added into bottom liquid, is stirred to react after 10~15min and 1/4 mass monomer emulsion is added, stirring 15~
20min is simultaneously warming up to 70~80 DEG C, then residual monomer emulsion is added dropwise, while ammonium persulfate solution is added dropwise, and is protected after being added dropwise
Temperature 1~2h of stirring stops heating and continuing 1~2h of stirring curing, cooling water suction moist type environmental protection dust suppressant.
Step（1）The mass fraction of the sodium hydroxide solution is 10%, and dosage is 12~48 times of bagasse quality.
Step（2）The neopelex, alkyl phenol polyoxyethylene ether, deionized water, polyvinyl alcohol, acryloyl
The parts by weight of amine be 3.2~4.0 parts of neopelexes, 1.0~1.5 swift as lightning alkyl phenol polyoxyethylene ether, 60~
80 parts of deionized waters, 3.5~7.0 parts of polyvinyl alcohol, 1.5~3.0 parts of acrylamides.
Step（3）It is described pretreatment bagasse powder, sodium alginate, deionized water parts by weight be 3~5 parts pretreatment sugarcanes
Ground-slag, 0.5~1.0 part of sodium alginate, 50~80 parts of deionized waters.
Step（4）The ammonium persulfate dosage is the 12~30% of sodium alginate quality.
Step（4）The mass fraction of the ammonium persulfate solution is 10%, and dosage is the 3.6~9.0 of sodium alginate quality
Times.
Step（4）The monomer emulsion droplet rate of acceleration is 2~4g/min, and the ammonium persulfate solution drop rate is
0.10~0.15g/min.
Compared with other methods, advantageous effects are the present invention：
（1）The great amount of hydroxy group group that the present invention is contained using Bagasse-cellulose has good hydrophilic hygroscopicity, unique
Holey cross-linked structure, is handled by microwave radiation technology, carries out chemical modification to bagasse using graft copolymerization technology, and by chain
The sodium alginate cross-linking of shape structure is interspersed in reticular structure, so that it is formed one layer of closed film on grit surface, can effectively be hindered
Only moisture evaporation and grit and extraneous contact, prepare the high molecular material with half interpenetrating network structure, relative to general
There is network structure hydrogel better mobility and water imbibition, final product to have stickiness, can fall the tiny powder on surface
Dirt sticks, and prevention dust is secondary to be entered in air, and product has the performance of moisture-absorption water-retention simultaneously, can effectively play wetting covering
Effect, prevent airborne dust；
（2）Water suction moist type environmental protection dust suppressant prepared by the present invention has good moisture retention, and can effectively resist rainwater punching
Brush has preferable water stability, effectively increases dust suppression efficiency, has both moisture-absorption water-retention and coheres the ability of dust, product selection
Environmental protection, reactant is organic matter, biodegradable, will not cause secondary pollution, good market prospect.
Specific implementation mode
It takes to be added in pulverizer after bagasse natural air drying and crush, sieve with 100 mesh sieve, the sugarcane after taking 50~100g to be sieved
Slag, it is in 10% sodium hydroxide solution, with 200~300r/ under 50~60 DEG C of waters bath with thermostatic control that 1.2~2.4L mass fractions, which are added,
Min stirs 10~15h, then filters to obtain filter residue after being 10% salt acid for adjusting pH to neutrality with mass fraction, and filter is washed with deionized
Slag 3~5 times is simultaneously transferred in drying box, is dried to constant weight at 105~110 DEG C, is obtained pretreatment bagasse powder, take 3.2~4.0g
Neopelex, 1.0~1.5g alkyl phenol polyoxyethylene ether are added in 60~80mL deionized waters, with 300~
400r/min stirs 15~20min, adds 3.5~7.0g polyvinyl alcohol, 1.5~3.0g acrylamides, continue stirring 30~
40min obtains monomer emulsion, and 3~5g is taken to pre-process bagasse powder, and 50~80mL deionizations are added in 0.5~1.0g sodium alginates
In water, 20~30min is stirred with 300~400r/min, and with microwave heating to 50~60 DEG C of 20~30min of insulated and stirred, then
Be added 0.12~0.15g ammonium persulfates, 1/4 mass monomer emulsion is added after being stirred to react 10~15min, continue stirring 15~
20min, and 70~80 DEG C are warming up to, then residual monomer emulsion is added dropwise with 2~4g/min, while with 0.10~0.15g/min
Dropwise addition 3.6~4.5g mass fractions are 10% ammonium persulfate solution, and rear 1~2h of insulated and stirred is added dropwise, and stop heating and continuing
Stirring 1~2h of curing, discharges, must absorb water moist type environmental protection dust suppressant after being cooled to room temperature.
It takes to be added in pulverizer after bagasse natural air drying and crush, sieve with 100 mesh sieve, the bagasse after taking 50g to be sieved is added
1.2L mass fractions are to stir 10h under 50 DEG C of waters bath with thermostatic control with 200r/min, then divided with quality in 10% sodium hydroxide solution
Number is washed with deionized filter residue 3 times and is transferred in drying box, 105 to filter to obtain filter residue after 10% salt acid for adjusting pH to neutrality
It is dried to constant weight at DEG C, obtains pretreatment bagasse powder, take 3.2g neopelexes, 1.0g alkyl phenol polyoxyethylene ether,
It is added in 60mL deionized waters, 15min is stirred with 300r/min, adds 3.5g polyvinyl alcohol, 1.5g acrylamides continue to stir
30min to be mixed, monomer emulsion is obtained, 3g is taken to pre-process bagasse powder, 0.5g sodium alginates are added in 50mL deionized waters, with
300r/min stirs 20min, and with microwave heating to 50 DEG C of insulated and stirred 20min, adds 0.12g ammonium persulfates, and stirring is anti-
1/4 mass monomer emulsion is added after answering 10min, continues to stir 15min, and be warming up to 70 DEG C, then residue is added dropwise with 2g/min
Monomer emulsion, while 3.6g mass fractions are added dropwise as 10% ammonium persulfate solution with 0.10g/min, it keeps the temperature and stirs after being added dropwise
1h is mixed, stops heating and continuing stirring curing 1h, discharge after being cooled to room temperature, must absorb water moist type environmental protection dust suppressant.
It takes to be added in pulverizer after bagasse natural air drying and crush, sieve with 100 mesh sieve, the bagasse after taking 80g to be sieved is added
2L mass fractions are to stir 12h under 55 DEG C of waters bath with thermostatic control with 250r/min, then use mass fraction in 10% sodium hydroxide solution
To filter to obtain filter residue after 10% salt acid for adjusting pH to neutrality, filter residue being washed with deionized 4 times and being transferred in drying box, at 108 DEG C
Lower drying obtains pretreatment bagasse powder to constant weight, and 3.6g neopelexes, 1.2g alkyl phenol polyoxyethylene ether is taken to add
Enter in 70mL deionized waters, 15~20min is stirred with 350r/min, add 4.0g polyvinyl alcohol, 1.8g acrylamides continue
35min is stirred, monomer emulsion is obtained, 4g is taken to pre-process bagasse powder, 0.8g sodium alginates are added in 70mL deionized waters, with
350r/min stirs 25min, and with microwave heating to 55 DEG C of insulated and stirred 25min, adds 0.13g ammonium persulfates, and stirring is anti-
1/4 mass monomer emulsion is added after answering 12min, continues to stir 18min, and be warming up to 75 DEG C, then residue is added dropwise with 3g/min
Monomer emulsion, while 3.9g mass fractions are added dropwise as 10% ammonium persulfate solution with 0.12g/min, it keeps the temperature and stirs after being added dropwise
1h is mixed, stops heating and continuing stirring curing 1h, discharge after being cooled to room temperature, must absorb water moist type environmental protection dust suppressant.
It takes to be added in pulverizer after bagasse natural air drying and crush, sieve with 100 mesh sieve, the bagasse after taking 100g to be sieved adds
It is to stir 15h under 60 DEG C of waters bath with thermostatic control with 300r/min, then use quality in 10% sodium hydroxide solution to enter 2.4L mass fractions
Score be 10% salt acid for adjusting pH to neutrality after filter to obtain filter residue, filter residue is washed with deionized 5 times and is transferred in drying box,
It is dried to constant weight at 110 DEG C, obtains pretreatment bagasse powder, take 4.0g neopelexes, 1.5g alkylphenol-polyethenoxies
Ether is added in 80mL deionized waters, stirs 20min with 400r/min, adds 7.0g polyvinyl alcohol, 3.0g acrylamides, after
Continuous stirring 40min, obtains monomer emulsion, and 5g is taken to pre-process bagasse powder, and 1.0g sodium alginates are added in 80mL deionized waters, with
400r/min stirs 30min, and with microwave heating to 60 DEG C of insulated and stirred 30min, adds 0.15g ammonium persulfates, and stirring is anti-
1/4 mass monomer emulsion is added after answering 15min, continues to stir 20min, and be warming up to 80 DEG C, then residue is added dropwise with 4g/min
Monomer emulsion, while 4.5g mass fractions are added dropwise as 10% ammonium persulfate solution with 0.15g/min, it keeps the temperature and stirs after being added dropwise
2h is mixed, stops heating and continuing stirring curing 2h, discharge after being cooled to room temperature, must absorb water moist type environmental protection dust suppressant.
Reference examples：The degradable dust suppressant of Zhengzhou company production.
The degradable dust suppressant of example and reference examples is detected, specific detection is as follows：
The measurement of solid content：About 2.0g test specimens are weighed with electronic balance, is placed in the measuring cup weighed, carefully rocks,
So that lotion is flowed, one layer of uniform film is formed at measuring cup bottom；It puts into air dry oven, is gradually heating to 110 DEG C, and
（110±2）Dry about 8h, is immediately placed in drier after taking-up, is weighed after it is cooled to room temperature at DEG C.Based on formula
It calculates.
The measurement of viscosity：Instrument is DNJ -5S type Digital Viscometers, Shanghai Hengping Instrument ＆ Meter Plant.To dust suppressant
Lotion is diluted, and carries out viscosity test to this dust suppression agent emulsion.
The measurement of film-forming time：Dust suppressant film formation time is measured with coating drying test method, it is equal in experiment plate surface
It is even to coat dust suppression agent emulsion；Its hardening time is observed, and records experimental data.
The measurement of dust suppression efficiency：Selection coal dust is dust suppression object.Dust suppression efficiency is calculated using formula.
Water-retaining property is tested：It is that substrate makees water retention test to select sand.Sample water content is calculated using formula, with water spray
Sand is with reference to the water holding capacity for embodying dust suppressant.
Specific testing result such as table 1.
1 performance characterization contrast table of table
| Detection project | Example 1 | Example 2 | Example 3 | Reference examples |
| Solid content/% | 28.81 | 28.79 | 28.77 | 20.12 |
| Viscosity/mPas | 595 | 587 | 591 | 495 |
| The film-forming time/min | 65 | 71 | 69 | 120 |
| Dust suppression rate/% | 97 | 97 | 95 | 88 |
| Water content % | 53 | 52 | 50 | 26 |
As shown in Table 1, the water suction moist type environmental protection dust suppressant viscosity that prepared by the present invention is big, and the film-forming time is short, and dust suppression rate is high,
Water content is high, has good dust suppression performance.
Claims (7)
1. a kind of preparation method of water suction moist type environmental protection dust suppressant, which is characterized in that the specific steps are：
（1）It is added in sodium hydroxide solution after taking bagasse to air-dry crushing and impregnates 10~15h, then with after salt acid for adjusting pH to neutrality
Washing and drying obtains pretreatment bagasse powder；
（2）Neopelex, alkyl phenol polyoxyethylene ether are taken, is added in deionized water and is uniformly mixed, add poly- second
Enol, acrylamide stir 30~40min, obtain monomer emulsion；
（3）It takes pretreatment bagasse powder, sodium alginate to be added in deionized water and stirs 20~30min, and with microwave heating to 50
~60 DEG C of 20~30min of insulated and stirred, obtain bottom liquid；
（4）Ammonium persulfate is added into bottom liquid, is stirred to react after 10~15min and 1/4 mass monomer emulsion is added, stirring 15~
20min is simultaneously warming up to 70~80 DEG C, then residual monomer emulsion is added dropwise, while ammonium persulfate solution is added dropwise, and is protected after being added dropwise
Temperature 1~2h of stirring stops heating and continuing 1~2h of stirring curing, cooling water suction moist type environmental protection dust suppressant.
2. a kind of preparation method of water suction moist type environmental protection dust suppressant as described in claim 1, which is characterized in that step（1）
The mass fraction of the sodium hydroxide solution is 10%, and dosage is 12~48 times of bagasse quality.
3. a kind of preparation method of water suction moist type environmental protection dust suppressant as described in claim 1, which is characterized in that step（2）
The neopelex, alkyl phenol polyoxyethylene ether, deionized water, polyvinyl alcohol, acrylamide parts by weight be 3.2
~4.0 parts of neopelexes, 1.0~1.5 swift as lightning alkyl phenol polyoxyethylene ether, 60~80 parts of deionized waters, 3.5
~7.0 parts of polyvinyl alcohol, 1.5~3.0 parts of acrylamides.
4. a kind of preparation method of water suction moist type environmental protection dust suppressant as described in claim 1, which is characterized in that step（3）
It is described pretreatment bagasse powder, sodium alginate, deionized water parts by weight be 3~5 parts pretreatment bagasse powders, 0.5~1.0 part
Sodium alginate, 50~80 parts of deionized waters.
5. a kind of preparation method of water suction moist type environmental protection dust suppressant as described in claim 1, which is characterized in that step（4）
The ammonium persulfate dosage is the 12~30% of sodium alginate quality.
6. a kind of preparation method of water suction moist type environmental protection dust suppressant as described in claim 1, which is characterized in that step（4）
The mass fraction of the ammonium persulfate solution is 10%, and dosage is 3.6~9.0 times of sodium alginate quality.
7. a kind of preparation method of water suction moist type environmental protection dust suppressant as described in claim 1, which is characterized in that step（4）
The monomer emulsion droplet rate of acceleration is 2~4g/min, and the ammonium persulfate solution drop rate is 0.10~0.15g/min.
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| CN201810288630.1A CN108441173A (en) | 2018-03-30 | 2018-03-30 | A kind of preparation method of water suction moist type environmental protection dust suppressant |
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| CN106085360A (en) * | 2016-08-25 | 2016-11-09 | 仇颖超 | The most biodegradable a kind of preparation method fixing the sand dust suppressant |
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| CN106632858A (en) * | 2016-11-22 | 2017-05-10 | 汪逸凡 | Preparation method of environment-friendly degradable dust depressor |
| CN106675521A (en) * | 2016-12-25 | 2017-05-17 | 常州市鼎日环保科技有限公司 | Environment-friendly sand-fixation dust depressor preparation method |
| CN107057644A (en) * | 2017-04-21 | 2017-08-18 | 常州市鼎升环保科技有限公司 | A kind of preparation method of natural environmental-protective dust suppressant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106117444A (en) * | 2016-06-25 | 2016-11-16 | 丁玉琴 | A kind of preparation method of fast filming liquid dust suppressant |
| CN106085360A (en) * | 2016-08-25 | 2016-11-09 | 仇颖超 | The most biodegradable a kind of preparation method fixing the sand dust suppressant |
| CN106632858A (en) * | 2016-11-22 | 2017-05-10 | 汪逸凡 | Preparation method of environment-friendly degradable dust depressor |
| CN106675521A (en) * | 2016-12-25 | 2017-05-17 | 常州市鼎日环保科技有限公司 | Environment-friendly sand-fixation dust depressor preparation method |
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Application publication date: 20180824 |