CN108198640A - The material and application method that radioactive pollutant is controlled to suspend or migrate under low temperature - Google Patents
The material and application method that radioactive pollutant is controlled to suspend or migrate under low temperature Download PDFInfo
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- CN108198640A CN108198640A CN201810084240.2A CN201810084240A CN108198640A CN 108198640 A CN108198640 A CN 108198640A CN 201810084240 A CN201810084240 A CN 201810084240A CN 108198640 A CN108198640 A CN 108198640A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/10—Organic substances; Dispersions in organic carriers
- G21F1/103—Dispersions in organic carriers
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Abstract
The material and application method that radioactive pollutant is controlled to suspend or migrate under a kind of low temperature, it is related to a kind of material that radioactive pollutant is controlled to suspend or migrate, the compacting material previously treated includes liquid component A and solid component B by the mixed liquor for disperseing to synthesize, and liquid component A and solid component B include by weight：Liquid component A includes：35~60 parts of polymeric matrix, 20~35 parts of solvent, 0.6~1 part of coalescents, 0.4 part of dispersant, 0.25 part of antifreezing agent, 0.6 part of antimildew disinfectant, 0.6 part of rheology control agent, 1.2~2.5 parts of multifunctional regulator, 12 parts of chelating agent；Solid component B includes：5~15 parts of plasticizer, temperature sensitive helps 1~3 part of volatilizer, 1.5~6 parts of compression aid at 3~8 parts of quick dry agent；Solid-liquid component is uniformly and stably dispersed in mixed liquor by the present invention, the problem of realizing the organic molten altogether of solid-liquid, well solved dispersion stabilization.
Description
Technical field
The present invention relates to the material that radioactive pollutant is controlled to suspend or migrate under a kind of low temperature, more particularly, to a kind of right
Radioactive pollutant prevents the compacting material previously treated and application method of diffusive migration under low temperature environment.
Background technology
Well known, relating to nuclear engineering accident radiation consequence emergency disposal is nuclear terror raid, nuclear accident and relates to nuclear environment peace
All risk insurance hinders important component part, the advance of technology, the adaptability of environment, the Usefulness Pair environment-guarantee of application, nuclear energy
It uses safely significant.Because of the complexity of environmental condition, disposition object diversity, the particularity of nuclear radiation aftermath and meet an urgent need
Timeliness so that relating to nuclear engineering damage sequence emergency disposal technology itself just becomes the pass of accident emergency response and nuclear environment purification
Key technology.
Different emergency disposals pair are can be seen that from nuclear radiation aftermath emergency disposal technical know-how research and analysis part is related to
As having different emergency disposal requirements, there is different technical methods；Considered according to radiation consequence emergency disposal principle and composition
Principal element, from technical advance, application feasibility and integrity, force construction possibility and ecological environmental protection,
Embrane method has impayable advantage in fruit emergency disposal system after irradiation, in the engineering of different medium surface radioactive pollution
Diffusion control is most widely used with eliminating, and diffusion control and clean effect are all more satisfactory；It is big around embrane method, that is, exfoliated membrane body
Area compacting decontamination method, i.e. control clean dirty method-compacting decontamination embrane method, the basic principle of autoclase formula compacting decontamination method is established
Radioactive pollution Engineering Control and the dry technique system eliminated.
There are many traditional decontamination method, mainly there is dust suction method, mechanical wipe method, sand-blast, supersonic wave decontamination method, dry ice spray
Shoot dirty method, chemical decontamination method, airblasting decontamination technology, broken decontamination method, foaming decontamination method, compacting decontamination blanket decontamination method；
The shortcoming of above-mentioned conventional method is that in actual use, decontamination method intersects and permeates, some methods only exist
Building and the local object surface of equipment use, and some methods are improved can just use in nuclear emergency condition selecting；It is main
It is embodied in 1, surface layer migration control effect and emergency disposal requirement is not achieved, it is otherwise costly；2nd, script solid fraction nuclear pollution object
It is converted into good fluidity, disposes more difficult waste water, fixation, the migration control of nuclear pollution are extremely difficult；3rd, easily cause it is secondary or
Secondary pollution；4th, nuclear pollution compacting is not thorough；5th, amount of waste is big, and transport, storage or disposal costs are high；6th, operating efficiency is low, place
It puts that the period is long, and personnel's radioactive dose is big, needs bulky radiation-protection equipment；Above-mentioned drawback greatly limits these conventional methods
On open area ground emergency flight control compacting field application, while existing embrane method technology faced under low temperature severe cold environment compared with
Big bottleneck, it is difficult to utmostly play it and suppress dirt-removing power；Therefore it proposes to control radioactivity under a kind of low temperature severe cold environment
Pollutant suspends or the material and method of migration, becomes the basic demand of those skilled in the art.
Invention content
In order to overcome the shortcomings of in background technology, the invention discloses under a kind of low temperature control radioactive pollutant suspend or
The material and application method of migration.
In order to realize the goal of the invention, the present invention adopts the following technical scheme that：
Under low temperature control radioactive pollutant suspend or migration material, it is described compacting material previously treated include liquid component A and
By the mixed liquor for disperseing to synthesize, liquid component A and solid component B include solid component B by weight：
Liquid component A includes：35~60 parts of polymeric matrix, 20~35 parts of solvent, 0.6~1 part of coalescents, dispersant 0.4
Part, 0.25 part of antifreezing agent, 0.6 part of antimildew disinfectant, 0.6 part of rheology control agent, 1.2~2.5 parts of multifunctional regulator, chelating agent
1-2 parts.
Solid component B includes：5~15 parts of plasticizer, temperature sensitive helps 1~3 part of volatilizer, compression aid at 3~8 parts of quick dry agent
1.5~6 parts.
Radioactive pollutant is controlled to suspend or the material of migration in a low temperature of described, the polymeric matrix in liquid component A
For in chlorinated rubber, highly-chlorinated polyethylene, high-performance highly-chlorinated polyethylene, alkyd resin, superchlorinated polyvinyl chloride resin, acrylic resin
At least one.
Control that radioactive pollutant suspends or the material of migration, the solvent in liquid component A are in a low temperature of described：Third
At least one of ketone, dimethylbenzene, toluene, tung oil；Coalescents are alcohol ester 12, dipropylene glycol methyl ether and alcohol ester 12 form a film
At least one of auxiliary agent；Dispersant is at least one of methyl anyl alcohol, polyacrylamide, polyacrylate；Antifreezing agent is
At least one of ethylene glycol, glycerine；Antimildew disinfectant is technical grade antimildew disinfectant；Rheology control agent for methylcellulose,
At least one of hydroxyethyl cellulose, polyvinyl alcohol；Multifunctional regulator is at least one of AMP-95, DA-50；Chelating
Agent is at least one of amino carboxylic acid, hydroxycarboxylic acid, polyamines.
Radioactive pollutant is controlled to suspend or the material of migration in a low temperature of described, plasticizer is adjacent benzene in solid component B
At least one of dibutyl carboxylic acid, tung oil, repefral.
Radioactive pollutant is controlled to suspend or the material of migration in a low temperature of described, quick dry agent is nanometer in solid component B
One kind in lithopone, superfine aluminate cement, nano diatomite, aerating aluminium powder, fineness are more than 1250 mesh.
Radioactive pollutant is controlled to suspend or the material of migration in a low temperature of described, temperature sensitive in solid component B helps volatilization
Agent is modified cellulose and the mixture of modified starch grading, and modified cellulose is carboxymethyl cellulose, hydroxyethyl cellulose, first
Any one in base cellulose, ethyl cellulose, modified starch is phosphate ester starch, oxidized starch, carboxymethyl starch or double
Any one in starch aldehyde, fineness are more than 800 mesh.
Control that radioactive pollutant suspends or the material of migration, the compression aid in solid component B are in a low temperature of described
At least one of acrylamide, C5H6Br2N2O2, hexa.
The application method of radioactive pollutant suspension or transport materials is controlled under low temperature, is included the following steps：
（1）According to the requirement that emergency responses of nuclear accident radioactive pollution control is suppressed, the face of contamination emergency disposal target area is determined
Product and its topographical features；
（2）Work machine or equipment are selected according to earth's surface feature and mission requirements, mission requirements are：Radioactive contaminated area is radiated
Property sedimentation dust diffusion control or diffusion control with compacting pre-process, environment temperature be subzero 20 DEG C or so, wind speed level Four；
（3）According to the mission requirements of previous step, 1.0~1.2kg/m is controlled according to diffusion2Dosage will to suppress pre- detergent equal
Even cloth is sprinkled upon emergency disposal target surface, suppresses migration, diffusion or the settling flux of contaminant on coverage goal object, and in target
Object surface layer forms the copolymer membrane for embedding radioactive contaminant；Radioactive pollutant is quickly suppressed in realization, for later stage disposition, pressure
System is ready.
By adopting the above-described technical solution, the present invention has the advantages that：
The material that radioactive pollutant is controlled to suspend or migrate under low temperature of the present invention, spills equipment the compacting is pre- by cloth
The uniform cloth of detergent is spread across on the medium of ground, and forming one layer in dielectric surface embeds, adsorbs, coheres radioactive dust particle and cause
The close preferable copolymer membrane of property, can effectively cover the radioactive dust particle on pressing medium surface, prevent radioactive dust
The purpose quickly suppressed is realized in the suspension and migration of grain.
The material that radioactive pollutant is controlled to suspend or migrate under low temperature of the present invention, solid-liquid component is uniform and stable
Ground is dispersed in mixed liquor, the problem of realizing the organic molten altogether of solid-liquid, well solved dispersion stabilization；
It is of the present invention compacting material previously treated and the prior art embrane method material equal operating environment and under the conditions of, table
The dry time was foreshortened to 0.5-2 hours by original 8-46 hours, and doing solid work the time, by original 10-120 hours to foreshorten to 2-8 small
When, the pre- detergent viscosity of compacting of the invention is only that the compacting of prior art reactivity suppresses the 1/6 of pre- detergent, mobility and
Surface lubrication is much better than the pre- detergent of compacting of the prior art, and good dispersibility overcomes the pre- detergent of compacting in operation
When mix the defects of uneven caking in advance forms a film and then blocks pipeline and pump, especially its subzero 20 DEG C low temperature uses special
Property, compensate for existing product environmental suitability it is poor the deficiencies of.
Specific embodiment
Explanation that can be detailed by the following examples is of the invention, and the open purpose of the present invention is intended to protect model of the present invention
Enclose all interior technological improvements.
The material that radioactive pollutant is controlled to suspend or migrate under low temperature of the present invention, the compacting material previously treated
Including liquid component A and solid component B by the mixed liquor for disperseing to synthesize, liquid component A and solid component B are wrapped by weight
It includes：
Liquid component A includes：35~60 parts of polymeric matrix, 20~35 parts of solvent, 0.6~1 part of coalescents, dispersant 0.4
Part, 0.25 part of antifreezing agent, 0.6 part of antimildew disinfectant, 0.6 part of rheology control agent, 1.2~2.5 parts of multifunctional regulator, chelating agent
1-2 parts.
Solid component B includes：5~15 parts of plasticizer, temperature sensitive helps 1~3 part of volatilizer, compression aid at 3~8 parts of quick dry agent
1.5~6 parts.
Radioactive pollutant is controlled to suspend or the material of migration in a low temperature of described, the polymeric matrix in liquid component A
For in chlorinated rubber, highly-chlorinated polyethylene, high-performance highly-chlorinated polyethylene, alkyd resin, superchlorinated polyvinyl chloride resin, acrylic resin
At least one.
Control that radioactive pollutant suspends or the material of migration, the solvent in liquid component A are in a low temperature of described：Third
At least one of ketone, dimethylbenzene, toluene, tung oil；Coalescents are alcohol ester 12, dipropylene glycol methyl ether and alcohol ester 12 form a film
At least one of auxiliary agent；Dispersant is at least one of methyl anyl alcohol, polyacrylamide, polyacrylate；Antifreezing agent is
At least one of ethylene glycol, glycerine；Antimildew disinfectant is technical grade antimildew disinfectant；Rheology control agent for methylcellulose,
At least one of hydroxyethyl cellulose, polyvinyl alcohol；Multifunctional regulator is at least one of AMP-95, DA-50；Chelating
Agent is at least one of amino carboxylic acid, hydroxycarboxylic acid, polyamines.
Radioactive pollutant is controlled to suspend or the material of migration in a low temperature of described, plasticizer is adjacent benzene in solid component B
At least one of dibutyl carboxylic acid, tung oil, repefral.
Radioactive pollutant is controlled to suspend or the material of migration in a low temperature of described, quick dry agent is nanometer in solid component B
One kind in lithopone, superfine aluminate cement, nano diatomite, aerating aluminium powder, fineness are more than 1250 mesh.
Radioactive pollutant is controlled to suspend or the material of migration in a low temperature of described, temperature sensitive in solid component B helps volatilization
Agent is modified cellulose and the mixture of modified starch grading, and modified cellulose is carboxymethyl cellulose, hydroxyethyl cellulose, first
Any one in base cellulose, ethyl cellulose, modified starch is phosphate ester starch, oxidized starch, carboxymethyl starch or double
Any one in starch aldehyde, fineness are more than 800 mesh.
Control that radioactive pollutant suspends or the material of migration, the compression aid in solid component B are in a low temperature of described
At least one of acrylamide, C5H6Br2N2O2, hexa.
The application method of radioactive pollutant suspension or transport materials is controlled under low temperature, is included the following steps：
（1）According to the requirement that emergency responses of nuclear accident radioactive pollution control is suppressed, the face of contamination emergency disposal target area is determined
Product and its topographical features；
（2）Work machine or equipment are selected according to earth's surface feature and mission requirements, mission requirements are：Radioactive contaminated area is radiated
Property sedimentation dust diffusion control or diffusion control with compacting pre-process, environment temperature be subzero 20 DEG C or so, wind speed level Four；
（3）According to the mission requirements of previous step, 1.0~1.2kg/m is controlled according to diffusion2Dosage will to suppress pre- detergent equal
Even cloth is sprinkled upon emergency disposal target surface, suppresses migration, diffusion or the settling flux of contaminant on coverage goal object, and in target
Object surface layer forms the copolymer membrane for embedding radioactive contaminant；Radioactive pollutant is quickly suppressed in realization, for later stage disposition, pressure
System is ready.
Embodiment 1
Into 100L containers add in 35 parts of polymeric matrix, 20 parts of solvent, it is temperature sensitive help 1.5 parts of volatilizer, 1.5 parts of compression aid,
It is 0.6 part of coalescents, 0.4 part of dispersant, 2.5 parts of antifreezing agent, 0.6 part of antimildew disinfectant, 0.6 part of rheology control agent, multi-functional
3 parts of 1.2 parts of conditioning agent, 1 part of chelating agent and quick dry agent, 5 parts of plasticizer are mixed into liquid that is uniform, stablizing, and liquid glues after testing
It spends for 640mPas, fully meets index request, bin stability is tested through long-term specimen storage meets 2 years property never degenerated
It can requirement.
Wherein polymeric matrix is chlorinated rubber, and solvent is acetone；Coalescents are alcohol ester 12；Plasticizer is adjacent benzene two
Formic acid dibutyl ester；Dispersant is methyl anyl alcohol；Antifreezing agent is ethylene glycol；Antimildew disinfectant is technical grade antimildew disinfectant；Rheology
Conditioning agent is hydroxyethyl cellulose；Multifunctional regulator is AMP-95；It is temperature sensitive to help volatilizer big for carboxymethyl cellulose and fineness
In the mixture of the phosphate ester starch of 800 mesh；Compression aid is acrylamide；The nanometer that quick dry agent is more than 1250 mesh for fineness is stood
Moral powder；Chelating agent is amino carboxylic acid.
Small area field trial is carried out according to embodiment 1, uniform cloth on horizontal concrete block is placed in 1000X1000mm
Radioactivity substitute is spilt, as marker；And the uniform cloth of material prepared in embodiment 1 is sprinkled upon on concrete slab, cloth is spilt
It measures as 1.5kg/m2, environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C, RH range for 16% ~
36%, mean wind speed is 2 grades, and after pre- detergent drying and forming-film to be pressed, it is 2% to measure marker residual rate near surface air,
Transfer Depth is 1mm.
According to embodiment 1 the concrete medium experiment of large area field is carried out, chosen opposed flattened without any processing
Concrete road surface, test scope are marked in the region of 4mX10m, and cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/
m2Dosage be uniformly sprayed in the region of label；Environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C,
RH range is 16% ~ 36%, and mean wind speed is 2 grades, after pre- detergent drying and forming-film to be pressed, is measured near surface air
Marker residual rate is 4%, Transfer Depth 2mm.
Laboratory experiment is carried out according to embodiment 1, chooses the opposed flattened indoor marble floorings without any processing, is surveyed
Range flags are tried in the region of 600X600mm, cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/m2Dosage it is equal
It is even to be sprayed in the region of label；Environmental condition is indoor environment, and range of temperature is 20 DEG C ~ 25 DEG C, RH range
It is 24% ~ 36%, mean wind speed is 0 grade, after pre- detergent drying and forming-film to be pressed, measures marker residual rate near surface air
It is 1%, Transfer Depth 0.5mm.
The pitch medium experiment of large area field is carried out according to embodiment 1, chooses the opposed flattened drip without any processing
Green road surface, test scope are marked in the region of 4mX10m, and cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/m2's
Dosage is uniformly sprayed in the region of label；Environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C, relatively
Humidity range is 16% ~ 36%, and mean wind speed is 2 grades, after pre- detergent drying and forming-film to be pressed, measures and is marked near surface air
Object residual rate is 8%, Transfer Depth 4mm.
Embodiment 2
Into 100L containers add in 45 parts of polymeric matrix, 25 parts of solvent, it is temperature sensitive help 1.5 parts of volatilizer, 2 parts of compression aid, into
0.7 part of film auxiliary agent, 0.4 part of dispersant, 2.5 parts of antifreezing agent, 0.6 part of antimildew disinfectant, 0.6 part of rheology control agent, multi-functional tune
1.5 parts of agent, 1 part of chelating agent and 5 parts of quick dry agent, 7 parts of plasticizer are saved, is mixed into liquid that is uniform, stablizing, after testing liquid viscosity
For 640mPas, index request is fully met, bin stability is tested through long-term specimen storage meets 2 years performances never degenerated
It is required that.
Wherein polymeric matrix is the mixture of highly-chlorinated polyethylene, high-performance highly-chlorinated polyethylene, and solvent is dimethylbenzene；
Coalescents are dipropylene glycol methyl ether；Plasticizer is tung oil；Dispersant is polyacrylamide；Antifreezing agent is glycerine；It is mould proof to kill
Microbial inoculum is technical grade antimildew disinfectant；Rheology control agent is hydroxyethyl cellulose；Multifunctional regulator is DA-50；Temperature sensitive help is waved
Send out the mixture that agent is more than the oxidized starch of 800 mesh for hydroxyethyl cellulose with fineness；Compression aid is C5H6Br2N2O2；Quick dry agent
It is more than the superfine aluminate cement of 1250 mesh for fineness；Chelating agent is hydroxycarboxylic acid.
Small area field trial is carried out according to embodiment 2, uniform cloth on horizontal concrete block is placed in 1000X1000mm
Radioactivity substitute is spilt, as marker；And the uniform cloth of material prepared in embodiment 2 is sprinkled upon on concrete slab, cloth is spilt
It measures as 1.5kg/m2, environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C, RH range for 16% ~
36%, mean wind speed is 2 grades, and after pre- detergent drying and forming-film to be pressed, it is 2% to measure marker residual rate near surface air,
Transfer Depth is 1mm.
According to embodiment 2 the concrete medium experiment of large area field is carried out, chosen opposed flattened without any processing
Concrete road surface, test scope are marked in the region of 4mX10m, and cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/
m2Dosage be uniformly sprayed in the region of label；Environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C,
RH range is 16% ~ 36%, and mean wind speed is 2 grades, after pre- detergent drying and forming-film to be pressed, is measured near surface air
Marker residual rate is 4%, Transfer Depth 2mm.
Laboratory experiment is carried out according to embodiment 2, chooses the opposed flattened indoor marble floorings without any processing, is surveyed
Range flags are tried in the region of 600X600mm, cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/m2Dosage it is equal
It is even to be sprayed in the region of label；Environmental condition is indoor environment, and range of temperature is 20 DEG C ~ 25 DEG C, RH range
It is 24% ~ 36%, mean wind speed is 0 grade, after pre- detergent drying and forming-film to be pressed, measures marker residual rate near surface air
It is 1%, Transfer Depth 0.5mm.
The pitch medium experiment of large area field is carried out according to embodiment 2, chooses the opposed flattened drip without any processing
Green road surface, test scope are marked in the region of 4mX10m, and cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/m2's
Dosage is uniformly sprayed in the region of label；Environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C, relatively
Humidity range is 16% ~ 36%, and mean wind speed is 2 grades, after pre- detergent drying and forming-film to be pressed, measures and is marked near surface air
Object residual rate is 8%, Transfer Depth 4mm.
Embodiment 3
Into 100L containers add in 50 parts of polymeric matrix, 30 parts of solvent, it is temperature sensitive help 2 parts of volatilizer, 3 parts of compression aid, film forming
0.8 part of auxiliary agent, 0.4 part of dispersant, 2.5 parts of antifreezing agent, 0.6 part of antimildew disinfectant, 0.6 part of rheology control agent, multi-functional adjusting
6 parts of 1.8 parts of agent, 1 part of chelating agent and quick dry agent, 10 parts of plasticizer are mixed into liquid that is uniform, stablizing, after testing liquid viscosity
For 640mPas, index request is fully met, bin stability is tested through long-term specimen storage meets 2 years performances never degenerated
It is required that.
Wherein polymeric matrix is the mixture of alkyd resin, superchlorinated polyvinyl chloride resin, and solvent is the mixing of toluene, tung oil
Object；Coalescents are 12 coalescents of alcohol ester；Plasticizer is repefral；Dispersant is polyacrylate；It is anti-
Jelly agent is ethylene glycol, the mixture of glycerine；Antimildew disinfectant is technical grade antimildew disinfectant；Rheology control agent is polyethylene
Alcohol；Multifunctional regulator is DA-50；The temperature sensitive carboxymethyl starch that volatilizer is helped to be more than 800 mesh for methylcellulose and fineness
Mixture；Compression aid is hexa；Quick dry agent is more than the nano diatomite of 1250 mesh for fineness；Chelating agent is more
Amine.
Small area field trial is carried out according to embodiment 3, uniform cloth on horizontal concrete block is placed in 1000X1000mm
Radioactivity substitute is spilt, as marker；And the uniform cloth of material prepared in embodiment 3 is sprinkled upon on concrete slab, cloth is spilt
It measures as 1.5kg/m2, environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C, RH range for 16% ~
36%, mean wind speed is 2 grades, and after pre- detergent drying and forming-film to be pressed, it is 2% to measure marker residual rate near surface air,
Transfer Depth is 1mm.
According to embodiment 3 the concrete medium experiment of large area field is carried out, chosen opposed flattened without any processing
Concrete road surface, test scope are marked in the region of 4mX10m, and cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/
m2Dosage be uniformly sprayed in the region of label；Environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C,
RH range is 16% ~ 36%, and mean wind speed is 2 grades, after pre- detergent drying and forming-film to be pressed, is measured near surface air
Marker residual rate is 4%, Transfer Depth 2mm.
Laboratory experiment is carried out according to embodiment 3, chooses the opposed flattened indoor marble floorings without any processing, is surveyed
Range flags are tried in the region of 600X600mm, cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/m2Dosage it is equal
It is even to be sprayed in the region of label；Environmental condition is indoor environment, and range of temperature is 20 DEG C ~ 25 DEG C, RH range
It is 24% ~ 36%, mean wind speed is 0 grade, after pre- detergent drying and forming-film to be pressed, measures marker residual rate near surface air
It is 1%, Transfer Depth 0.5mm.
The pitch medium experiment of large area field is carried out according to embodiment 3, chooses the opposed flattened drip without any processing
Green road surface, test scope are marked in the region of 4mX10m, and cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/m2's
Dosage is uniformly sprayed in the region of label；Environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C, relatively
Humidity range is 16% ~ 36%, and mean wind speed is 2 grades, after pre- detergent drying and forming-film to be pressed, measures and is marked near surface air
Object residual rate is 8%, Transfer Depth 4mm.
Embodiment 4
Into 100L containers add in 55 parts of polymeric matrix, 35 parts of solvent, it is temperature sensitive help 3 parts of volatilizer, 5 parts of compression aid, film forming
1 part of auxiliary agent, 0.4 part of dispersant, 2.5 parts of antifreezing agent, 0.6 part of antimildew disinfectant, 0.6 part of rheology control agent, multifunctional regulator
7 parts of 2.5 parts, 1.5 parts of chelating agent and quick dry agent, 12 parts of plasticizer are mixed into liquid that is uniform, stablizing, after testing liquid viscosity
For 640mPas, index request is fully met, bin stability is tested through long-term specimen storage meets 2 years performances never degenerated
It is required that.
Wherein polymeric matrix be highly-chlorinated polyethylene, the mixture of acrylic resin, solvent is dimethylbenzene, toluene it is mixed
Close object；Coalescents are alcohol ester 12, dipropylene glycol methyl ether；Plasticizer is dibutyl phthalate, tung oil；Dispersant is first
The mixture of base amylalcohol, polyacrylamide；Antifreezing agent is ethylene glycol, the mixture of glycerine；Antimildew disinfectant is prevented for technical grade
Mould fungicide；Rheology control agent is methylcellulose, hydroxyethyl cellulose；Multifunctional regulator is DA-50, DA-50；It is temperature sensitive to help
Volatilizer is more than the mixture of the dialdehyde starch of 800 mesh for ethyl cellulose with fineness；Compression aid is acrylamide, dibromo sea
Cause；Quick dry agent is more than the aerating aluminium powder of 1250 mesh for fineness；Chelating agent is amino carboxylic acid, the mixture of hydroxycarboxylic acid.
Small area field trial is carried out according to embodiment 4, uniform cloth on horizontal concrete block is placed in 1000X1000mm
Radioactivity substitute is spilt, as marker；And the uniform cloth of material prepared in embodiment 4 is sprinkled upon on concrete slab, cloth is spilt
It measures as 1.5kg/m2, environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C, RH range for 16% ~
36%, mean wind speed is 2 grades, and after pre- detergent drying and forming-film to be pressed, it is 2% to measure marker residual rate near surface air,
Transfer Depth is 1mm.
According to embodiment 4 the concrete medium experiment of large area field is carried out, chosen opposed flattened without any processing
Concrete road surface, test scope are marked in the region of 4mX10m, and cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/
m2Dosage be uniformly sprayed in the region of label；Environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C,
RH range is 16% ~ 36%, and mean wind speed is 2 grades, after pre- detergent drying and forming-film to be pressed, is measured near surface air
Marker residual rate is 4%, Transfer Depth 2mm.
Laboratory experiment is carried out according to embodiment 4, chooses the opposed flattened indoor marble floorings without any processing, is surveyed
Range flags are tried in the region of 600X600mm, cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/m2Dosage it is equal
It is even to be sprayed in the region of label；Environmental condition is indoor environment, and range of temperature is 20 DEG C ~ 25 DEG C, RH range
It is 24% ~ 36%, mean wind speed is 0 grade, after pre- detergent drying and forming-film to be pressed, measures marker residual rate near surface air
It is 2%, Transfer Depth 1.5mm.
The pitch medium experiment of large area field is carried out according to embodiment 4, chooses the opposed flattened drip without any processing
Green road surface, test scope are marked in the region of 4mX10m, and cloth has spilt radioactivity substitute, by pressed material according to 1.5kg/m2's
Dosage is uniformly sprayed in the region of label；Environmental condition is wild environment, and range of temperature is -25 DEG C ~ -10 DEG C, relatively
Humidity range is 16% ~ 36%, and mean wind speed is 2 grades, after pre- detergent drying and forming-film to be pressed, measures and is marked near surface air
Object residual rate is 2.5%, Transfer Depth 3mm.
Part not in the detailed description of the invention is the prior art.
The embodiment selected herein for the goal of the invention of the open present invention, is presently considered to be suitable, still,
It is to be understood that the present invention is directed to include all changes and the improvement that all belong to this design and the embodiment in invention scope.
Claims (8)
1. the material that radioactive pollutant is controlled to suspend or migrate under a kind of low temperature, it is characterized in that：The compacting material previously treated
Including liquid component A and solid component B by the mixed liquor for disperseing to synthesize, liquid component A and solid component B are wrapped by weight
It includes：
Liquid component A includes：35~60 parts of polymeric matrix, 20~35 parts of solvent, 0.6~1 part of coalescents, dispersant 0.4
Part, 0.25 part of antifreezing agent, 0.6 part of antimildew disinfectant, 0.6 part of rheology control agent, 1.2~2.5 parts of multifunctional regulator, chelating agent
1-2 parts；
Solid component B includes：5~15 parts of plasticizer, 3~8 parts of quick dry agent, it is temperature sensitive help 1~3 part of volatilizer, compression aid 1.5~
6 parts.
2. the material that radioactive pollutant is controlled to suspend or migrate under low temperature according to claim 1, it is characterized in that：Liquid
Polymeric matrix in component A is chlorinated rubber, highly-chlorinated polyethylene, high-performance highly-chlorinated polyethylene, alkyd resin, crosses chloroethene
At least one of olefine resin, acrylic resin.
3. the material that radioactive pollutant is controlled to suspend or migrate under low temperature according to claim 1, it is characterized in that：Liquid
Solvent in component A is：At least one of acetone, dimethylbenzene, toluene, tung oil；Coalescents are alcohol ester 12, dipropylene glycol
At least one of 12 coalescents of methyl ether and alcohol ester；Dispersant is methyl anyl alcohol, in polyacrylamide, polyacrylate
It is at least one；Antifreezing agent is ethylene glycol, at least one of glycerine；Antimildew disinfectant is technical grade antimildew disinfectant；Rheology tune
Section agent is at least one of methylcellulose, hydroxyethyl cellulose, polyvinyl alcohol；Multifunctional regulator is AMP-95, DA-50
At least one of；Chelating agent is at least one of amino carboxylic acid, hydroxycarboxylic acid, polyamines.
4. the material that radioactive pollutant is controlled to suspend or migrate under low temperature according to claim 1, it is characterized in that：Solid
Plasticizer is at least one of dibutyl phthalate, tung oil, repefral in component B.
5. the material that radioactive pollutant is controlled to suspend or migrate under low temperature according to claim 1, it is characterized in that：Solid
Quick dry agent is one kind in nanometer lithopone, superfine aluminate cement, nano diatomite, aerating aluminium powder in component B, and fineness is big
In 1250 mesh.
6. the material that radioactive pollutant is controlled to suspend or migrate under low temperature according to claim 1, it is characterized in that：Solid
Temperature sensitive in component B helps volatilizer, and for modified cellulose and the mixture of modified starch grading, modified cellulose is fine for carboxymethyl
Any one in element, hydroxyethyl cellulose, methylcellulose, ethyl cellulose is tieed up, modified starch is phosphate ester starch, oxidation
Any one in starch, carboxymethyl starch or dialdehyde starch, fineness are more than 800 mesh.
7. the material that radioactive pollutant is controlled to suspend or migrate under low temperature according to claim 1, it is characterized in that：Solid
Compression aid in component B is at least one of acrylamide, C5H6Br2N2O2, hexa.
8. radioactive pollutant is controlled in a low temperature of according to claim 1-7 any claims to suspend or transport materials
Application method, it is characterized in that：Include the following steps：
（1）According to the requirement that emergency responses of nuclear accident radioactive pollution control is suppressed, the face of contamination emergency disposal target area is determined
Product and its topographical features；
（2）Work machine or equipment are selected according to earth's surface feature and mission requirements, mission requirements are：Radioactive contaminated area is radiated
Property sedimentation dust diffusion control or diffusion control with compacting pre-process, environment temperature be subzero 20 DEG C or so, wind speed level Four；
（3）According to the mission requirements of previous step, 1.0~1.2kg/m is controlled according to diffusion2Dosage will to suppress pre- detergent equal
Even cloth is sprinkled upon emergency disposal target surface, suppresses migration, diffusion or the settling flux of contaminant on coverage goal object, and in target
Object surface layer forms the copolymer membrane for embedding radioactive contaminant；Radioactive pollutant is quickly suppressed in realization, for later stage disposition, pressure
System is ready.
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| Application Number | Priority Date | Filing Date | Title |
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| CN101570606A (en) * | 2009-06-15 | 2009-11-04 | 北京化工大学 | Overall lead-free X-ray shielding rubber compound material |
| CN103275417A (en) * | 2013-05-28 | 2013-09-04 | 上海肃盛贸易有限公司 | Composite anti-radiation material |
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