CN109096995A - A kind of environmental-friendly dust suppressant and preparation method thereof - Google Patents
A kind of environmental-friendly dust suppressant and preparation method thereof Download PDFInfo
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- C08B37/0087—Glucomannans or galactomannans; Tara or tara gum, i.e. D-mannose and D-galactose units, e.g. from Cesalpinia spinosa; Tamarind gum, i.e. D-galactose, D-glucose and D-xylose units, e.g. from Tamarindus indica; Gum Arabic, i.e. L-arabinose, L-rhamnose, D-galactose and D-glucuronic acid units, e.g. from Acacia Senegal or Acacia Seyal; Derivatives thereof
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- 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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Abstract
The invention discloses a kind of environmental-friendly dust suppressants and preparation method thereof, belong to field of environment pollution control.During prepared by activity of water absorption agent, konjaku powder purifies the present invention through citric acid solution, and the dissolubility made increases, and improves solution viscosity, ensure that and stablizes swelling during water suction；Using acrylic acid and acrylamide as function monomer, the gel network of activity of water absorption agent is formed, so that the hydrone in its structure is difficult to shake off and leave away, from air or the hygroscopic capacity of other approach is improved, so as to effectively carry out dust suppression；With allyl alcohol polyether etc. for raw material, wetting activity agent is obtained, improves the absorption property of activity of water absorption agent and dust, increases contact area；It is film forming activating agent with kelp homogenate and polyvinyl alcohol, improves the flushing resistance of film forming, while film forming matter is biodegradable, secondary pollution not will cause to environment.The present invention solves the problems, such as that the dust suppressant dust suppression time is short at present, moisturizing rate is low.
Description
Technical field
The invention belongs to technical field of environment pollution control, it is related to a kind of environmental-friendly dust suppressant and preparation method thereof.
Background technique
Particulate Pollution is very wide to the coverage of China's urban air-quality, is the primary of most cities air pollution
Factor.Both at home and abroad generally to the Preventing Countermeasures of open dust source control mainly have watering dust suppression, cover dust suppression, setting windbreak dust suppression,
Build enclosed construction, chemical dust suppression etc..Watering dust suppression not only causes the waste of great lot of water resources, but also due to our north ground
Area's summer temperature is high, and evaporation is fast (general sprinkling can only once keep 10min or so), and winter temperature is low, easily freezes, therefore,
Its practical application is very limited.Bulk cargo cover woven cloth intensity it is low, it is smooth, light-weight, easily go for a drive, service life is short,
It is at high cost, the waste of resource is not only caused, but also cover and bother with bavin pile process, is unfavorable for the speed-raising synergy of operation.It keeps out the wind
Dust suppression wall and construction enclosed construction dust suppression one-time investment are huge, and cannot capture the aerial dust of floating, for not
The disconnected operation area for having new dust to generate, dust suppression ability are limited.The method of chemical dust suppression is just adopted extensively from the date of birth
With, achieve good effect, be considered as in scientific research and industry park plan solve open dust source control dust pollution best side
Method.Existing dust suppressant is broadly divided into wet type, caking property, moisture-absorbing moisture-keeping type and multifunctional and composite type, wherein have a single function
It is in the majority, and compound dust suppressant report is less.In general, single dust suppressant moisturizing rate is low, and anti-dust effect is undesirable, and presses down
The dirt period is short.It is outer at present not yet develop it is a kind of be generally applicable in, the universal dust suppressant that anti-dust effect is good, and it is applied widely and
Preferably compound dust suppressant research also just starts to walk effect.Therefore, a kind of environment friend with good anti-dust effect is developed
The suppression agent of good type road surface is technical problem urgently to be resolved at present.
Summary of the invention
The technical problems to be solved by the invention: it for the problem that the current dust suppressant dust suppression time is short, moisturizing rate is low, provides
A kind of environmental-friendly dust suppressant and preparation method thereof.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of environmental-friendly dust suppressant, including activity of water absorption agent, wetting activity agent, film forming solution additive；
The preparation method of the activity of water absorption agent, includes the following steps:
(1) it takes acrylic acid 2 ~ 5:10 in mass ratio ~ 15 that deionized water is added, is stirred 20 ~ 30min in 30 ~ 40 DEG C, then be added dropwise
The sodium hydroxide solution of acrylic acid quality 10 ~ 20%, obtains mixed liquor, takes mixed liquor 10 ~ 20:3 in mass ratio ~ 5:2 ~ 6 that propylene is added
Amide, polyethylene glycol diacrylamine are stirred, and obtain stirring mixture, spare；
(2) it takes konjaku powder 1 ~ 3:10 in mass ratio ~ 15 that citric acid solution is added, is stirred in 55 ~ 60 DEG C, stood, then plus
Enter 10 ~ 20 times of konjaku powder quality of ethyl alcohol, filter, take pumping filter residue and drying, obtain dried object, take sodium hydroxide in mass ratio 2 ~ 5:
80 ~ 100 are added absolute ethyl alcohol and stirrings mixing, and 2 ~ 4 times of sodium hydroxide quality of dried object is added, add sodium hydroxide quality 1 ~
3 times of monoxone is stirred in 35 ~ 40 DEG C, obtains mixture, takes mixture 2 ~ 5:10 in mass ratio ~ 20 that distilled water is added, in
45 ~ 55 DEG C are stirred, and are cooled to room temperature, and filtering takes filtrate；
(3) take filtrate 4 ~ 6:1 in mass ratio ~ 3:20 ~ 30 that hectorite, deionized water is added, ultrasound is stirred, and must be stirred mixed
Object a is closed, the stirring mixture 5 ~ 10:3 in mass ratio ~ 6 for taking step (1) spare is added stirring mixture a and is stirred, and adds
It is stirred the ammonium persulfate of amount of substance 3 ~ 5% and is stirred the sodium hydrogensulfite of amount of substance 1 ~ 3%, be warming up to 40 ~ 50 DEG C of guarantors
1 ~ 3h of temperature, is cooled to room temperature, obtains cooled material, takes cooled material mass ratio 1 ~ 3:8 ~ 10 that dehydrated alcohol is added, and stands, and filtering takes filter
Cake crushing sieves with 100 mesh sieve, and collects sieving particle to get activity of water absorption agent.
Stirring mixture is stirred condition in the step (1) are as follows: is warming up to 40 ~ 50 DEG C and is stirred 1 ~ 3h.
Stirring mixture a's is stirred condition in the step (3) are as follows: is stirred 40 in 300r/min, 75 ~ 80 DEG C
~80min。
The wetting activity agent the preparation method comprises the following steps:
It takes allyl alcohol polyether 50 ~ 70:1 in mass ratio ~ 3 that chloroplatinic acid is added, is passed through nitrogen protection, it is mixed to be warming up to 75 ~ 80 DEG C of stirrings
It closes, the octamethyltrisiloxane of allyl alcohol polyether quality 45 ~ 55% is added dropwise, is warming up to 100 ~ 110 DEG C of 2 ~ 5h of heat preservation, is cooled to room
Temperature, filtering take filtrate 5 ~ 8:2 in mass ratio ~ 4 that the mixing of tetramethyl -6- decine -5,8- glycol polyoxyethylene ether is added to get profit
Wet activating agent.
It is described film forming solution additive the preparation method comprises the following steps:
S1. take kelp 1 ~ 3:8 in mass ratio ~ 15 that distilled water is added, homogenate obtains homogenate, takes homogenate 10 ~ 20:3 in mass ratio
Polyvinyl alcohol, distilled water is added in ~ 7:40 ~ 50, is warming up to 85 ~ 90 DEG C and is stirred, adds the penta 2 of homogenate quality 1 ~ 3%
Aldehyde is stirred in 70 ~ 80 DEG C, obtains mixture；
S2. it takes mixture 80 ~ 100:3 in mass ratio ~ 9 that repefral is added to be stirred, mixture b must be stirred,
Take stirring mixture b 10 ~ 20:5 in mass ratio ~ 9:50 ~ 60 that sodium lignin sulfonate, distilled water is added, it is mixed in 80 ~ 85 DEG C of stirrings
It closes to get at film liquid activating agent.
A kind of preparation method of environmental-friendly dust suppressant, includes the following steps:
According to the mass fraction, 30 ~ 50 parts of activity of water absorption agent, 10 ~ 15 parts of film forming solution additives, 1 ~ 3 part of glutaraldehyde, 3 ~ 6 parts of urine are taken
Element, 6 ~ 9 parts of boraxs, 5 ~ 10 parts of hydroxypropyl methyl celluloses, 200 ~ 300 parts of water are stirred, and are obtained matrix object, are taken matrix object by matter
Wetting activity agent, sorbierite is added than 100 ~ 200:10 ~ 15:2 ~ 4 in amount, is stirred 40 ~ 50min in 300r/min to get ring
Guarantor's type dust suppressant.
Described matrix object is stirred condition are as follows: is stirred 1 ~ 3h in 80 ~ 85 DEG C.
The present invention is compared with other methods, and advantageous effects are:
(1) during activity of water absorption agent preparation, konjaku powder purifies the present invention through citric acid solution, and citric acid can be effective
Ground removes in original powder containing substances such as sulfur dioxide, keeps Glucomannan content in konjaku flour higher, and chloroacetic acid is added in alkaline item
It carries out molecule nucleophilic displacement of fluorine to konjaku powder under part to be modified, so that the Glucomannan carboxymethyl etherification in konjaku powder, a chloroethene
There is acid stronger penetrating power to enable etherifying reagent well into sugar chain inside, then could effectively be catalyzed carboxy methylation
Hydrolysis occurs in acid condition for the abundant progress of reaction, Glucomannan, and big strand is hydrolyzed into many small molecules, makes
Dissolubility increase, improve solution viscosity, ensure that during water suction stablize swelling；
(2) using acrylic acid and acrylamide as function monomer modified konjaku powder is added, with ammonium persulfate-Asia in the present invention
Sodium bisulfate system is redox initiator, and polyethyleneglycol diacrylate is crosslinking agent, is graft-polymerized, and water suction is formed
The gel network of activating agent, polymer network is acted on by the constraint to absorption water, so that the hydrone in its structure is difficult to earn
It takes off and leaves away, from air or the hygroscopic capacity of other approach improves, so as to effectively carry out dust suppression；
(3) present invention is added octamethyltrisiloxane and is modified using polyethers using allyl alcohol polyether as raw material, is obtained wetting and is lived
Property agent, more close molecular layer is formed when arranging on the interface that dust is contacted with water, surface tension is lower, can be rapid
Spreading wetting improves the lubricity of activity of water absorption agent and dust contact surface, so that contact interface water retention property enhances, is retained duration
To be improved, while tetramethyl -6- decine -5,8- glycol polyoxyethylene ether is added and is compounded, improves activity of water absorption agent
With the absorption property of dust, increase contact area；
(4) present invention is film forming activating agent with kelp homogenate and polyvinyl alcohol, it is modified sodium lignin sulfonate, adds
Enter glutaraldehyde cross-linking, can form a film in surface particles, at the same be added urea element, sorbierite be plasticized, improve the resistance to erosion of film forming
Performance is not easy to be dispelled by rainwater or extraneous strength, influences anti-dust effect, together so that the mechanical property after film forming is improved
When film forming matter it is biodegradable, secondary pollution not will cause to environment.
Specific embodiment
Activity of water absorption agent the preparation method comprises the following steps:
(1) it takes acrylic acid 2 ~ 5:10 in mass ratio ~ 15 that deionized water is added, is stirred 20 ~ 30min in 30 ~ 40 DEG C, then be added dropwise
The sodium hydroxide solution that the mass fraction of acrylic acid quality 10 ~ 20% is 20%, obtains mixed liquor, takes mixed liquor in mass ratio 10 ~ 20:
Acrylamide, polyethylene glycol diacrylamine is added in 3 ~ 5:2 ~ 6, is warming up to 40 ~ 50 DEG C and is stirred 1 ~ 3h, must be stirred
Object, it is spare；
(2) it takes konjaku powder 1 ~ 3:10 in mass ratio ~ 15 that the citric acid solution that mass fraction is 5% is added, is stirred in 55 ~ 60 DEG C
60 ~ 80min is mixed, 50 ~ 60min is stood, the ethyl alcohol that the mass fraction for adding 10 ~ 20 times of konjaku powder quality is 80% is taken out
Filter, takes pumping filter residue and drying, obtains dried object, takes sodium hydroxide 2 ~ 5:80 in mass ratio ~ 100 that dehydrated alcohol is added, it is stirred 5 ~
10min is added 2 ~ 4 times of sodium hydroxide quality of dried object, 1 ~ 3 times of sodium hydroxide quality of monoxone is added, in 35 ~ 40 DEG C
It is stirred 1 ~ 3h, obtains mixture, takes mixture 2 ~ 5:10 in mass ratio ~ 20 that distilled water is added, it is stirred 2 in 45 ~ 55 DEG C ~
4h is cooled to room temperature, and filtering takes filtrate；
(3) take filtrate 4 ~ 6:1 in mass ratio ~ 3:20 ~ 30 that hectorite, deionized water, 20 ~ 30min of ultrasound, in 300r/ is added
Min, 75 ~ 80 DEG C be stirred 40 ~ 80min, mixture a must be stirred, the stirring mixture in mass ratio 5 for taking step (1) spare ~
Stirring mixture a is added in 10:3 ~ 6, is stirred 30 ~ 40min, adds the ammonium persulfate for being stirred amount of substance 3 ~ 5% and stirs
The sodium hydrogensulfite for mixing mixture quality 1 ~ 3% is warming up to 40 ~ 50 DEG C of 1 ~ 3h of heat preservation, is cooled to room temperature, obtains cooled material, take cooling
Amount of substance than 1 ~ 3:8 ~ 10 be added dehydrated alcohol, stand 18 ~ for 24 hours, filtering, take filter cake crushing sieve with 100 mesh sieve, collect sieving
Grain is to get activity of water absorption agent.
Wetting activity agent the preparation method comprises the following steps:
It takes allyl alcohol polyether 50 ~ 70:1 in mass ratio ~ 3 that chloroplatinic acid is added, is passed through nitrogen protection, it is mixed to be warming up to 75 ~ 80 DEG C of stirrings
50 ~ 60min is closed, the octamethyltrisiloxane of allyl alcohol polyether quality 45 ~ 55% is added dropwise, is warming up to 100 ~ 110 DEG C of 2 ~ 5h of heat preservation,
It is cooled to room temperature, filters, take filtrate 5 ~ 8:2 in mass ratio ~ 4 that tetramethyl -6- decine -5,8- glycol polyoxyethylene ether is added mixed
It closes to get wetting activity agent.
Form a film solution additive the preparation method comprises the following steps:
S1. take kelp 1 ~ 3:8 in mass ratio ~ 15 that distilled water is added, homogenate obtains homogenate, takes homogenate 10 ~ 20:3 in mass ratio
~ 7:40 ~ 50 be added polyvinyl alcohol, distilled water, be warming up to 85 ~ 90 DEG C and be stirred 50 ~ 60min, add homogenate quality 1 ~
3% glutaraldehyde is stirred 30 ~ 50min in 70 ~ 80 DEG C, obtains mixture；
S2. it takes mixture 80 ~ 100:3 in mass ratio ~ 9 that repefral is added, is stirred 20 ~ 30min, must stir
Mixture b takes stirring mixture b 10 ~ 20:5 in mass ratio ~ 9:50 ~ 60 that sodium lignin sulfonate, distilled water is added, in 80 ~ 85 DEG C
30 ~ 60min is stirred to get at film liquid activating agent.
A kind of preparation method of environmental-friendly dust suppressant, includes the following steps:
According to the mass fraction, 30 ~ 50 parts of activity of water absorption agent, 10 ~ 15 parts of film forming solution additives, 1 ~ 3 part of glutaraldehyde, 3 ~ 6 parts of urine are taken
Element, 6 ~ 9 parts of boraxs, 5 ~ 10 parts of hydroxypropyl methyl celluloses, 200 ~ 300 parts of water, are stirred 1 ~ 3h in 80 ~ 85 DEG C, obtain matrix
Object takes matrix object 100 ~ 200:10 in mass ratio ~ 15:2 ~ 4 that wetting activity agent, sorbierite is added, is stirred in 300r/min
40 ~ 50min is to get environmental-friendly dust suppressant.
Activity of water absorption agent the preparation method comprises the following steps:
(1) it takes acrylic acid 2:10 in mass ratio that deionized water is added, is stirred 20min in 30 DEG C, then acrylic acid quality is added dropwise
10% mass fraction be 20% sodium hydroxide solution, obtain mixed liquor, take mixed liquor 10:3:2 in mass ratio be added acrylamide,
Polyethylene glycol diacrylamine is warming up to 40 DEG C and is stirred 1h, obtains stirring mixture, spare；
(2) it takes konjaku powder 1:10 in mass ratio that the citric acid solution that mass fraction is 5% is added, is stirred in 55 DEG C
60min stands 50min, and the ethyl alcohol that the mass fraction for adding 10 times of konjaku powder quality is 80% filters, and takes suction filtration slag dry
It is dry, dried object is obtained, takes sodium hydroxide 2:80 in mass ratio that dehydrated alcohol is added, is stirred 5min, sodium hydroxide quality 2 is added
Times dried object, add 1 times of sodium hydroxide quality of monoxone, be stirred 1h in 35 DEG C, obtain mixture, take mixture by
Distilled water is added in mass ratio 2:10, is stirred 2h in 45 DEG C, is cooled to room temperature, and filters, takes filtrate；
(3) take filtrate 4:1:20 in mass ratio that hectorite, deionized water, ultrasonic 20min, in 300r/min, 75 DEG C of stirrings is added
40min is mixed, mixture a must be stirred, stirring mixture a is added in the stirring mixture 5:3 in mass ratio for taking step (1) spare,
It is stirred 30min, the sodium hydrogensulfite for adding the ammonium persulfate for being stirred amount of substance 3% and being stirred amount of substance 1%,
40 DEG C of heat preservation 1h are warming up to, is cooled to room temperature, obtains cooled material, take cooled material mass ratio 1:8 that dehydrated alcohol is added, stand 18h, mistake
Filter takes filter cake crushing to sieve with 100 mesh sieve, and collects sieving particle to get activity of water absorption agent.
Wetting activity agent the preparation method comprises the following steps:
It takes allyl alcohol polyether 50:1 in mass ratio that chloroplatinic acid is added, is passed through nitrogen protection, is warming up to 75 DEG C and is stirred 50min,
The octamethyltrisiloxane of allyl alcohol polyether quality 45% is added dropwise, is warming up to 100 DEG C of heat preservation 2h, is cooled to room temperature, filters, takes filter
The mixing of tetramethyl -6- decine -5,8- glycol polyoxyethylene ether is added to get wetting activity agent in liquid 5:2 in mass ratio.
Form a film solution additive the preparation method comprises the following steps:
S1. take kelp 1:8 in mass ratio that distilled water is added, homogenate obtains homogenate, and homogenate 10:3:40 in mass ratio is taken to be added
Polyvinyl alcohol, distilled water are warming up to 85 DEG C and are stirred 50min, add the glutaraldehyde of homogenate quality 1%, stir in 70 DEG C
30min is mixed, mixture is obtained；
S2. it takes mixture 80:3 in mass ratio that repefral is added, is stirred 20min, mixture b must be stirred,
Take stirring mixture b 10:5:50 in mass ratio be added sodium lignin sulfonate, distilled water, be stirred in 80 DEG C 30min to get
At film liquid activating agent.
A kind of preparation method of environmental-friendly dust suppressant, includes the following steps:
According to the mass fraction, take 30 parts of activity of water absorption agent, 10 parts of film forming solution additives, 1 part of glutaraldehyde, 3 parts of urea, 6 parts of boraxs,
5 parts of hydroxypropyl methyl celluloses, 200 parts of water, are stirred 1h in 80 DEG C, obtain matrix object, take matrix object 100:10 in mass ratio:
2 are added wetting activity agent, sorbierite, are stirred 40min in 300r/min to get environmental-friendly dust suppressant.
Activity of water absorption agent the preparation method comprises the following steps:
(1) it takes acrylic acid 2:15 in mass ratio that deionized water is added, is stirred 30min in 40 DEG C, then acrylic acid quality is added dropwise
20% mass fraction be 20% sodium hydroxide solution, obtain mixed liquor, take mixed liquor 20:5:6 in mass ratio be added acrylamide,
Polyethylene glycol diacrylamine is warming up to 50 DEG C and is stirred 3h, obtains stirring mixture, spare；
(2) it takes konjaku powder 3:15 in mass ratio that the citric acid solution that mass fraction is 5% is added, is stirred in 60 DEG C
80min stands 60min, and the ethyl alcohol that the mass fraction for adding 20 times of konjaku powder quality is 80% filters, and takes suction filtration slag dry
It is dry, dried object is obtained, takes sodium hydroxide 5:100 in mass ratio that dehydrated alcohol is added, is stirred 10min, sodium hydroxide matter is added
The dried object of 4 times of amount, adds 3 times of sodium hydroxide quality of monoxone, is stirred 3h in 40 DEG C, obtains mixture, take mixing
Distilled water is added in object 5:20 in mass ratio, is stirred 4h in 55 DEG C, is cooled to room temperature, and filters, takes filtrate；
(3) take filtrate 6:3:30 in mass ratio that hectorite, deionized water, ultrasonic 30min, in 300r/min, 80 DEG C of stirrings is added
80min is mixed, mixture a must be stirred, stirring mixture a is added in the stirring mixture 10:6 in mass ratio for taking step (1) spare,
It is stirred 40min, the sodium hydrogensulfite for adding the ammonium persulfate for being stirred amount of substance 5% and being stirred amount of substance 3%,
50 DEG C of heat preservation 3h are warming up to, is cooled to room temperature, obtains cooled material, take cooled material mass ratio 3:10 that dehydrated alcohol is added, are stood for 24 hours,
Filtering takes filter cake crushing to sieve with 100 mesh sieve, and collects sieving particle to get activity of water absorption agent.
Wetting activity agent the preparation method comprises the following steps:
It takes allyl alcohol polyether 70:3 in mass ratio that chloroplatinic acid is added, is passed through nitrogen protection, is warming up to 80 DEG C and is stirred 60min,
The octamethyltrisiloxane of allyl alcohol polyether quality 55% is added dropwise, is warming up to 110 DEG C of heat preservation 5h, is cooled to room temperature, filters, takes filter
The mixing of tetramethyl -6- decine -5,8- glycol polyoxyethylene ether is added to get wetting activity agent in liquid 8:4 in mass ratio.
Form a film solution additive the preparation method comprises the following steps:
S1. take kelp 3:15 in mass ratio that distilled water is added, homogenate obtains homogenate, and homogenate 20:7:50 in mass ratio is taken to be added
Polyvinyl alcohol, distilled water are warming up to 90 DEG C and are stirred 60min, add the glutaraldehyde of homogenate quality 3%, stir in 80 DEG C
50min is mixed, mixture is obtained；
S2. it takes mixture 100:9 in mass ratio that repefral is added, is stirred 30min, mixture b must be stirred,
Take stirring mixture b 20:9:60 in mass ratio be added sodium lignin sulfonate, distilled water, be stirred in 85 DEG C 60min to get
At film liquid activating agent.
A kind of preparation method of environmental-friendly dust suppressant, includes the following steps:
According to the mass fraction, take 50 parts of activity of water absorption agent, 15 parts of film forming solution additives, 3 parts of glutaraldehydes, 6 parts of urea, 9 parts of boraxs,
10 parts of hydroxypropyl methyl celluloses, 300 parts of water, are stirred 3h in 85 DEG C, obtain matrix object, take matrix object in mass ratio 200:
Wetting activity agent, sorbierite is added in 15:4, is stirred 50min in 300r/min to get environmental-friendly dust suppressant.
Activity of water absorption agent the preparation method comprises the following steps:
(1) it takes acrylic acid 3:13 in mass ratio that deionized water is added, is stirred 23min in 33 DEG C, then acrylic acid quality is added dropwise
13% mass fraction be 20% sodium hydroxide solution, obtain mixed liquor, take mixed liquor 13:4:3 in mass ratio be added acrylamide,
Polyethylene glycol diacrylamine is warming up to 45 DEG C and is stirred 2h, obtains stirring mixture, spare；
(2) it takes konjaku powder 2:11 in mass ratio that the citric acid solution that mass fraction is 5% is added, is stirred in 57 DEG C
70min stands 55min, and the ethyl alcohol that the mass fraction for adding 15 times of konjaku powder quality is 80% filters, and takes suction filtration slag dry
It is dry, dried object is obtained, takes sodium hydroxide 3:90 in mass ratio that dehydrated alcohol is added, is stirred 7min, sodium hydroxide quality 3 is added
Times dried object, add 2 times of sodium hydroxide quality of monoxone, be stirred 2h in 37 DEG C, obtain mixture, take mixture by
Distilled water is added in mass ratio 3:15, is stirred 3h in 50 DEG C, is cooled to room temperature, and filters, takes filtrate；
(3) take filtrate 5:2:25 in mass ratio that hectorite, deionized water, ultrasonic 25min, in 300r/min, 78 DEG C of stirrings is added
60min is mixed, mixture a must be stirred, stirring mixture a is added in the stirring mixture 7:4 in mass ratio for taking step (1) spare,
It is stirred 35min, the sodium hydrogensulfite for adding the ammonium persulfate for being stirred amount of substance 4% and being stirred amount of substance 2%,
45 DEG C of heat preservation 2h are warming up to, is cooled to room temperature, obtains cooled material, take cooled material mass ratio 2:9 that dehydrated alcohol is added, stand 20h, mistake
Filter takes filter cake crushing to sieve with 100 mesh sieve, and collects sieving particle to get activity of water absorption agent.
Wetting activity agent the preparation method comprises the following steps:
It takes allyl alcohol polyether 60:2 in mass ratio that chloroplatinic acid is added, is passed through nitrogen protection, is warming up to 78 DEG C and is stirred 55min,
The octamethyltrisiloxane of allyl alcohol polyether quality 50% is added dropwise, is warming up to 105 DEG C of heat preservation 3h, is cooled to room temperature, filters, takes filter
The mixing of tetramethyl -6- decine -5,8- glycol polyoxyethylene ether is added to get wetting activity agent in liquid 6:3 in mass ratio.
Form a film solution additive the preparation method comprises the following steps:
S1. take kelp 2:9 in mass ratio that distilled water is added, homogenate obtains homogenate, and homogenate 15:4:45 in mass ratio is taken to be added
Polyvinyl alcohol, distilled water are warming up to 88 DEG C and are stirred 55min, add the glutaraldehyde of homogenate quality 2%, stir in 75 DEG C
40min is mixed, mixture is obtained；
S2. it takes mixture 90:7 in mass ratio that repefral is added, is stirred 25min, mixture b must be stirred,
Take stirring mixture b 15:7:55 in mass ratio be added sodium lignin sulfonate, distilled water, be stirred in 83 DEG C 40min to get
At film liquid activating agent.
A kind of preparation method of environmental-friendly dust suppressant, includes the following steps:
According to the mass fraction, take 40 parts of activity of water absorption agent, 13 parts of film forming solution additives, 2 parts of glutaraldehydes, 5 parts of urea, 7 parts of boraxs,
8 parts of hydroxypropyl methyl celluloses, 250 parts of water, are stirred 2h in 83 DEG C, obtain matrix object, take matrix object 150:13 in mass ratio:
3 are added wetting activity agent, sorbierite, are stirred 45min in 300r/min to get environmental-friendly dust suppressant.
Comparative example 1: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking activity of water absorption agent.
Comparative example 2: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking wetting activity agent.
Comparative example 3: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking film forming solution additive.
Comparative example 4: the environmental-friendly dust suppressant of company of Beijing production.
Above-described embodiment and environmental-friendly dust suppressant made from comparative example are detected, the detection method of 1. moisturizing efficiency:
Soil pretreatment: 10 mesh and soil sample below are chosen, dries 300min under the conditions of 50 DEG C of temperature in an oven, moisture is removed, puts
It is spare to enter drier.The soil sample (pretreatment) that certain mass partial size is weighed less than 10 mesh is put into culture dish, is measured a certain amount of
Dust suppression agent solution drop evenly soil sample surface, after it is slowly infiltrated through in soil sample, dirt ware is put into 40 DEG C of constant temperature
It is dry in drying box, the quality of a dirt ware is weighed every a hour, calculates the moisturizing rate of sample according to formula, moisturizing rate %=
(mi-m)/(m0-m) × 100%, wherein m0 is the quality that dust suppression agent solution dust kicked up by somebody walking in front ware is added dropwise；Mi is to be dried to i-th hour dirt ware
Quality；M is the dirt ware quality that dust suppression agent solution is not added dropwise.2. the detection method of dust suppression efficiency: choosing 10 mesh (sieve per inch
Possessed mesh count is mesh number in length) and soil sample below, 180min is dried in an oven under the conditions of 80 DEG C of temperature, is removed
Remove moisture.It takes the soil sample of appropriate amount to be contained in 2 surface plates respectively, keeps sample surfaces concordant with surface plate.By two surfaces
Spraying dust suppressant in ware respectively, (fountain height is by 3L/m2), it is carried out respectively after drying 180min in an oven under the conditions of 80 DEG C of temperature
Weighing, wherein the quality of sample is w1.It is respectively put into wind-tunnel later, sample surfaces wind speed carries out under conditions of being 30m/s
The deflation of 5min, then weighs respectively, and the quality of remaining sample is w2.Wind erosion rate is calculated separately by following equation, is eroded
In rate %=formula of (w1-w2)/w1 × 100%: the quality of soil sample before w1- deflation；The quality of soil sample after w2- deflation.3. the dust suppression period
Detection method is as follows: key instrument and material: 2050 type multifunctional sampling instruments, can continuous real-time monitoring TSP, PM10, PM2.5 it is dense
Spend variation, NOx tester EC9841, environmental sanitation sprinkling wagon, counter, Road dust suppressant, tap water.One section of town road is chosen,
Sampled point is respectively set on sprinkling road surface and control road surface, fugitive dust major parameter NOx, PM10 in the air of detection sprinkling front and back,
The variation of PM2.5 concentration.Dust suppression agent solution is configured, carries out spraying operation using environmental sanitation sprinkling truck road pavement.Road about 2km is sprayed,
Equivalent dust suppressant dosage is 1.5L/m2.Sprinkling only carries out once, and sprays road surface around control point with identical water simultaneously, with
Any processing is not done to region road surface afterwards, until monitoring terminates, to compare air treating effect.2d starts before sprinkling dust suppressant
Monitoring, monitors 14d in total.Obtain that the results are shown in Table 1.
Table 1:
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Moisturizing rate % | 40.8 | 42 | 41 | 32.6 | 30.2 | 31.4 | 16.8 |
| Dust suppression efficiency % | 93 | 95 | 92 | 82 | 78 | 80 | 65 |
| Dust suppression period d | 8 | 9 | 8 | 4 | 5 | 4 | 3 |
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, it is all the spirit and principles in the present invention it
Interior, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.In summary, originally
The environmental-friendly dust suppressant effect of invention is more preferable, is worth of widely use.
Claims (7)
1. a kind of environmental-friendly dust suppressant, which is characterized in that including activity of water absorption agent, wetting activity agent, film forming solution additive；
The preparation method of the activity of water absorption agent, includes the following steps:
(1) it takes acrylic acid 2 ~ 5:10 in mass ratio ~ 15 that deionized water is added, is stirred 20 ~ 30min in 30 ~ 40 DEG C, then be added dropwise
The sodium hydroxide solution of acrylic acid quality 10 ~ 20%, obtains mixed liquor, takes mixed liquor 10 ~ 20:3 in mass ratio ~ 5:2 ~ 6 that propylene is added
Amide, polyethylene glycol diacrylamine are stirred, and obtain stirring mixture, spare；
(2) it takes konjaku powder 1 ~ 3:10 in mass ratio ~ 15 that citric acid solution is added, is stirred in 55 ~ 60 DEG C, stood, then plus
Enter 10 ~ 20 times of konjaku powder quality of ethyl alcohol, filter, take pumping filter residue and drying, obtain dried object, take sodium hydroxide in mass ratio 2 ~ 5:
80 ~ 100 are added absolute ethyl alcohol and stirrings mixing, and 2 ~ 4 times of sodium hydroxide quality of dried object is added, add sodium hydroxide quality 1 ~
3 times of monoxone is stirred in 35 ~ 40 DEG C, obtains mixture, takes mixture 2 ~ 5:10 in mass ratio ~ 20 that distilled water is added, in
45 ~ 55 DEG C are stirred, and are cooled to room temperature, and filtering takes filtrate；
(3) take filtrate 4 ~ 6:1 in mass ratio ~ 3:20 ~ 30 that hectorite, deionized water is added, ultrasound is stirred, and must be stirred mixed
Object a is closed, the stirring mixture 5 ~ 10:3 in mass ratio ~ 6 for taking step (1) spare is added stirring mixture a and is stirred, and adds
It is stirred the ammonium persulfate of amount of substance 3 ~ 5% and is stirred the sodium hydrogensulfite of amount of substance 1 ~ 3%, be warming up to 40 ~ 50 DEG C of guarantors
1 ~ 3h of temperature, is cooled to room temperature, obtains cooled material, takes cooled material mass ratio 1 ~ 3:8 ~ 10 that dehydrated alcohol is added, and stands, and filtering takes filter
Cake crushing sieves with 100 mesh sieve, and collects sieving particle to get activity of water absorption agent.
2. environmental-friendly dust suppressant according to claim 1, which is characterized in that stirring mixture stirs in the step (1)
Mix mixing condition are as follows: be warming up to 40 ~ 50 DEG C and be stirred 1 ~ 3h.
3. environmental-friendly dust suppressant according to claim 1, which is characterized in that stirring mixture a's stirs in the step (3)
Mix mixing condition are as follows: be stirred 40 ~ 80min in 300r/min, 75 ~ 80 DEG C.
4. environmental-friendly dust suppressant according to claim 1, which is characterized in that the wetting activity agent the preparation method comprises the following steps:
It takes allyl alcohol polyether 50 ~ 70:1 in mass ratio ~ 3 that chloroplatinic acid is added, is passed through nitrogen protection, it is mixed to be warming up to 75 ~ 80 DEG C of stirrings
It closes, the octamethyltrisiloxane of allyl alcohol polyether quality 45 ~ 55% is added dropwise, is warming up to 100 ~ 110 DEG C of 2 ~ 5h of heat preservation, is cooled to room
Temperature, filtering take filtrate 5 ~ 8:2 in mass ratio ~ 4 that the mixing of tetramethyl -6- decine -5,8- glycol polyoxyethylene ether is added to get profit
Wet activating agent.
5. environmental-friendly dust suppressant according to claim 1, which is characterized in that the preparation method of the film forming solution additive
Are as follows:
S1. take kelp 1 ~ 3:8 in mass ratio ~ 15 that distilled water is added, homogenate obtains homogenate, takes homogenate 10 ~ 20:3 in mass ratio
Polyvinyl alcohol, distilled water is added in ~ 7:40 ~ 50, is warming up to 85 ~ 90 DEG C and is stirred, adds the penta 2 of homogenate quality 1 ~ 3%
Aldehyde is stirred in 70 ~ 80 DEG C, obtains mixture；
S2. it takes mixture 80 ~ 100:3 in mass ratio ~ 9 that repefral is added to be stirred, mixture b must be stirred,
Take stirring mixture b 10 ~ 20:5 in mass ratio ~ 9:50 ~ 60 that sodium lignin sulfonate, distilled water is added, it is mixed in 80 ~ 85 DEG C of stirrings
It closes to get at film liquid activating agent.
6. a kind of preparation method of the environmental-friendly dust suppressant as described in claim 1 ~ 5 any one, which is characterized in that the preparation
Method includes the following steps:
According to the mass fraction, 30 ~ 50 parts of activity of water absorption agent, 10 ~ 15 parts of film forming solution additives, 1 ~ 3 part of glutaraldehyde, 3 ~ 6 parts of urine are taken
Element, 6 ~ 9 parts of boraxs, 5 ~ 10 parts of hydroxypropyl methyl celluloses, 200 ~ 300 parts of water are stirred, and are obtained matrix object, are taken matrix object by matter
Wetting activity agent, sorbierite is added than 100 ~ 200:10 ~ 15:2 ~ 4 in amount, is stirred 40 ~ 50min in 300r/min to get ring
Guarantor's type dust suppressant.
7. the preparation method of environmental-friendly dust suppressant according to claim 6, which is characterized in that the stirring of described matrix object is mixed
Conjunction condition are as follows: be stirred 1 ~ 3h in 80 ~ 85 DEG C.
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