CN104448157B - A kind of electron beam irradiation processes the synthetic method of high-performance water-absorbing resin - Google Patents
A kind of electron beam irradiation processes the synthetic method of high-performance water-absorbing resin Download PDFInfo
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Abstract
The invention discloses a kind of electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, comprise the steps：（1）20～80 weight parts of polymer monomers, 0.02～5 weight portion time monomer, 0.001～1 parts by weight of crosslinking agent, 0.01～5 weight other auxiliary agents are added in reactors, mix homogeneously, the feed liquid that is polymerized is obtained, wherein, the polymerized monomer is acrylic acid that degree of neutralization is 50～90%；（2）The polymerization feed liquid of flowing is placed under the electron beam irradiation of electron accelerator transmitting, that is, obtains water absorbent gel；（3）By water absorbent gel cutting, drying, crush, screen, that is, obtaining semi-finished granules；（4）Semi-finished granules are carried out into surface-crosslinked process, high-performance water-absorbing resin finished product is become.By the electron beam irradiation acrylic monomer solution produced using industrial electronic accelerator, liquid material is made to complete polyreaction in flowing moment, so as to the method for synthesized high-performance water-absorbing resins.
Description
Technical field
The present invention relates to a kind of electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, belong to irradiation processing
Technical field.
Background technology
High-performance water-absorbing resin refers to that the functional high-polymer that water absorbent rate is tens times or even thousands of times of sole mass is closed
Into material, just because of its excellent water suction and gel expansion character, agricultural and gardening planting soil section are widely used in
Water water conservation and soil conditioning, medical and living-hygienic product（Such as sanitary towel, diaper, hygiene care mattress etc.）, flood fighting water blockoff,
The various fields such as building moisturizing and water stop sealing material, cable block water, food fresh keeping, daily-use chemical industry, fire-fighting fire extinguishing, and with section
The development of technology, its range of application will be more extensive.
In the polyreaction of synthesized high-performance water-absorbing resin, account for the synthetic route of most leading positions and prepare work
Skill, is mostly the method for the aqueous solution polymerization or inverse suspension polymerisation in solution carried out with alkenes such as acrylic acid as principal monomer.
The method production High hydrophilous resin of inverse suspension polymerisation in solution, it is possible to obtain excellent product quality, but due to depositing
In the outstanding problem for affecting its development：Using substantial amounts of organic solvent, must be processed in technique and be reclaimed, due to solvent
It is inflammable and explosive, it is desirable to process equipment manipulation is very strict, there are the dangerous and pollution problem to environment of blast.
And water solution polymerization process is due to being the polymerization of monomer to be carried out in water solvent is explosion-proof, recycling design without carrying out
Deng process, for operating residual monomer with product etc. from production process, its safety is also much better, has obvious advantage.Cause
This, most of producers Bian produce High hydrophilous resin with this water solution polymerization process both at home and abroad.
Chinese patent CN1995103B prepares water-absorbing resins and its surface-crosslinked manufacturer in disclosing aqueous solution
Method.
United States Patent (USP) US4734478, US4863989, US6849665 etc. disclose the side that water-absorbing resin is prepared under aqueous solution
Method.
Using the thermal polymerization method for adding initiator and cross-linking agent more than the synthesis of high-performance water-absorbing resin, and High hydrophilous resin
Polymerization is the chemical reaction process that gel solid state is changed into from liquid, is increased due to reacting later stage system viscosity, and Stirring heat transfer is stranded
It is difficult, it is possible to produce hot-spot and make properties of product be deteriorated, control might have the generation of the phenomenons such as implode accidentally.Particularly liquid
This fluffy stability control during state is solidified into fine and smooth foaming body gets up highly difficult.
In addition, the method that the vinyl monomer that is polymerized by the way of radioactive source 60Co- gamma Rays prepares water-absorbing resin,
The generation being polymerized can more simply be controlled.
Chinese patent CN85102156A discloses that one kind radioactive source (Co60) irradiation is acrylamide triggered and bentonite system
Into the method for absorbent material.
Chinese patent CN02114782.5 discloses a kind of radioactive source (Co60) irradiation and causes alkenyl monomer polymerization to prepare water suction
The method of resin.
Chinese patent CN1786040 discloses a kind of preparation method of spherical water absorption resin, at normal temperatures and pressures, by radioactive source
60Co- gamma Rays inverse suspension polymerizations are formed.
Chinese patent CN1554692 discloses a kind of preparation method of High hydrophilous resin, microwave radiation cellulose base high water absorption
Resin syntheses processes.
Chinese patent CN103224630A is in ultraviolet source chemical effect and (Co60) gamma-rays radioprotective ionization chemistry
Under effect effect, the method that water-absorbing resin is prepared by polymerisation in solution.
Methods of the Chinese patent CN01130787 using ultraviolet light, by polymerizable acrylic monomer to acrylic resin
Make absorbent material.
It is due to not using chemical initiator, reaction not to be controlled by initiator concentration, poly- with foregoing chemistry of aqueous solution
Legal difference, it is not required that strictly control;Other influences water-absorbing resin performance and its improvement, all with water solution polymerization process phase
Seemingly.
The mode of radioactive source 60Co- gamma Rays be polymerized vinyl monomer prepare water-absorbing resin method need not chemistry
Initiator, but the polyreaction for radiating gamma-rays ionization trigger monomer free radical by 60Co and carrying out.Prepared using this method
The research of water-absorbing resin needs to produce gamma-ray radioactive source with production.The gamma-rays close rate that 60Co is produced is relatively low, safety
Property there is also greater risk, be that this can overcome above-mentioned drawback using high-energy electron beam irradiation.
Microwave, ultraviolet light, the polyreaction of the radiation trigger monomer free radical of radioactive source (Co60) are because reach certain agent
The exposure time that amount needs is long, causes reaction efficiency low, and heat of reaction is low and polymerization is incomplete, and monomer residue is more, final physical property
It is poor.The close rate that generation is there is also in technique changes impact to properties of product etc..
In sum, above-mentioned polymerization is in trigger monomer radical polymerization, or need chemical initiator and heat and
Control temperature, or the accumulation of the irradiation dose of long period is needed, all exist in reaction rate or physical characteristics control many
It is not enough.
The content of the invention
The technical problem to be solved is to provide the conjunction that a kind of electron beam irradiation processes high-performance water-absorbing resin
Into method, by the electron beam irradiation acrylic monomer solution produced using industrial electronic accelerator, liquid material is made in flowing wink
Between complete polyreaction, so as to the method for synthesized high-performance water-absorbing resins.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, comprises the steps：
（1）By 20～80 weight parts of polymer monomers, 0.02～5 weight portion time monomer, 0.001～1 parts by weight of crosslinking agent,
During 0.01～5 weight other auxiliary agents add reactors, mix homogeneously obtains the feed liquid that is polymerized, wherein, the polymerized monomer is neutralization
Spend the acrylic acid for 50～90%；
（2）The polymerization feed liquid of flowing is placed under the electron beam irradiation of electron accelerator transmitting, that is, obtains water absorbent gel；
（3）By water absorbent gel cutting, drying, crush, screen, that is, obtaining semi-finished granules；
（4）Semi-finished granules are carried out into surface-crosslinked process, high-performance water-absorbing resin finished product is become.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：Step（2）
Described in the scanning window of electron accelerator be less than 20 degree parallel to the angle on ground or scanning window and ground, it is and monomer to be polymerized molten
Solution is divided into cascade by liquid Jing devices of making thinner, and is flowed down and is passed perpendicularly through electron beam, make solution from above electron beam curtain
Cascade forms vertical section with electron beam curtain.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：The stand
Thin device is the hemispherical dome pipe that the column solution Jing of pipeline flat outlet is shared into cascade, and flat outlet length is less than
The width of electron beam curtain, width are less than 4mm.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：Described time
Monomer is 2- acrylamide -2- methyl propane sulfonic acids, the one kind in acrylamide.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：The friendship
Connection agent is N, one or two in N- di-2-ethylhexylphosphine oxides (methyl) acrylamide, polyethylene glycol dimethacrylate.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：It is described its
His auxiliary agent is ethylenediaminetetraacetic acid and its esters, polyphosphate, citrate；Or for dodecylbenzene sodium sulfonate, 12
Alkyl sodium sulfate, alkyl alcohol ethoxylates sulfate；Or be bentonite, silicon dioxide, kieselguhr；Or be polypropylene
Acid, the polymer of polyacrylamide；Or be ethanol, pentane；One or more in above auxiliary agent.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：For in
Bases with the polymerized monomer of acrylic or methacrylic acids is sodium hydroxide, sodium bicarbonate, ammonium hydrogen carbonate, sodium carbonate
One or two in.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：Step（4）
In surface-crosslinked process when add surface-crosslinked liquid, the surface-crosslinked liquid is a kind of by poly epihydric alcohol based compound, polyhydric alcohol
Mix with various.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：It is described poly-
Glycidyl compound polyethyleneglycol diglycidylether or Ethylene glycol diglycidyl ether, the polyhydric alcohol are 1,2-the third
Glycol, the ethoxylate of 1,4-butanediol or ethylene glycol and their ester and carboxylic acid or carbonic acid.
A kind of aforesaid electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, it is characterised in that：Carry out electricity
When beamlet is radiated, within 260 ms/min, the absorbed dose of product are 500Gy-30kGy to the flow speed control of the feed liquid that is polymerized.
The invention has the beneficial effects as follows：There is provided a kind of using electron beam irradiation propylene class monomer polymerization reactions synthesis macromolecule
The method of water-absorbing resin, when the moment that solution to be polymerized is contacted with electron beam, that is, aggregates into gel plate object, falls within lower section and gathers materials
Conveyer device, is sent to shearing separate machine, cuts into little gel particle, then carries out drying, crushes, sieves, and finally carries out table
Face cross-linking reaction, makes high-performance water-absorbing resin, can be applicable to large-scale production (more than 5000t/a), and this polyreaction is not
Thermal source is needed, production controlling difficulties and production safety in the presence of prior art is solved the problems, such as, and is had exposure time short,
Accurately, the mode that controls reaction is simple, production is quick, the advantage of low cost for absorbed dose；Chemical initiator can not be needed, it is raw
Produce the advantages of operation is simple with control, and the hole of gained water-absorbing resin enriches, absorption speed is fast, water absorption is big, water retention property is good；
The electron beam irradiation object of high-energy is produced realizing the purpose of material modification by industrial irradiation with accelerator.
Description of the drawings
Fig. 1 be a kind of electron beam irradiation processing high-performance water-absorbing resin of the invention synthetic method in feed liquid.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
The invention provides a kind of electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, including following step
Suddenly：
（1）20～80 weight parts of polymer monomers, 0.001～1 parts by weight of crosslinking agent, 0.01～5 weight other auxiliary agents are added
Enter in reactor, mix homogeneously, obtain feed liquid to be polymerized, wherein, the polymerized monomer is acrylic acid that degree of neutralization is 50～90%
Or methacrylic acid, extensively, price is relatively low for both monomer sources, and liquid absorbency rate is high；Secondary monomer is 2- acrylamide -2-
One kind in methyl propane sulfonic acid, acrylamide, both double bond monomers containing nonionic can quickly absorb normal saline, increase
Pressure liquid absorption after strong imbibition；And acrylic acid accounting is preferred version higher than 80%, it is more beneficial for improving the water absorption of product.
Cross-linking agent is N, one or two in N- di-2-ethylhexylphosphine oxides (methyl) acrylamide, polyethylene glycol dimethacrylate, is adopted
The longer double bond type cross-linking agent of chain, can form bigger space net structure, to increase water suction and water retention property；Other auxiliary agents
For ethylenediaminetetraacetic acid and its esters, polyphosphate, citrate；Or be dodecylbenzene sodium sulfonate, dodecyl sulfur
Sour sodium, alkyl alcohol ethoxylates sulfate；Or be bentonite, silicon dioxide, kieselguhr；Or for polyacrylic acid, poly- third
The polymer of acrylamide；Or be ethanol, pentane, one or more in above auxiliary agent；
（2）Feed liquid to be polymerized within 260 ms/min of coutroi velocity is placed under electron beam irradiation, electron beam is carried out
During radiation, polymerization feed liquid thickness is 1mm～40mm, and the absorbed dose of product are 500Gy-30kGy, that is, obtain water absorbent gel, with
Ensure that feed liquid to be polymerized can receive abundant irradiation, it is ensured that the quality of product；
（3）By water absorbent gel cutting, drying, crush, screen, that is, obtaining semi-finished granules, the wherein particle diameter of gel particle
3mm is less than, is easy to flash baking；Water-soluble monomer is reduced, physical property is not affected, by the micelle for cutting at 50 DEG C -180 DEG C
It is dried into solid granule；Select the temperature range to carry out drying the time that can reduce drying, do not affect physical property, if temperature
Too high, material particles can carry out surface-crosslinked reaction too early, affect the quality of product；
（4）Semi-finished granules are carried out into surface-crosslinked process, high-performance water-absorbing resin finished product is become, at surface-crosslinked place
Surface-crosslinked liquid is added during reason, the surface-crosslinked liquid is by poly epihydric alcohol based compound, a kind of and various mixing of polyhydric alcohol
Into wherein the poly epihydric alcohol based compound polyethyleneglycol diglycidylether or Ethylene glycol diglycidyl ether, described more
First alcohol is 1,2-Propylene Glycol, the ethoxylate of 1,4-butanediol or ethylene glycol and their ester and carboxylic acid or carbonic acid.
During crosslinking Treatment, the granule of the drying of -150 mesh of 20 mesh is chosen；If grain diameter is excessive, can affect absorption speed and
The flatness of processing and the comfort sense under being seated at body；If grain diameter is too small, the diffusion of liquid and gel after imbibition can be caused
Blocking, and poor water retention property, through repetition test, product of the grain diameter after the granule of -150 mesh scope of 20 mesh is processed
Quality is optimal.
In the present embodiment, as shown in figure 1, step（2）The scanning window of middle electron accelerator is parallel to ground or scanning window
20 degree are less than with the angle on ground, so, the curtain that the electron beam launched from scanning window is formed is parallel to ground or and ground
Angle be less than 20 degree, we are considered as the electron beam curtain under this 20 degree of angles parallel to ground.
Solution is divided into certain thickness cascade by the solution monomer to be polymerized of certain flowing velocity, Jing devices 1 of making thinner（Or
Referred to as moisture film）, flow down from above parallel to Ground Electronic beam curtain and pass perpendicularly through electron beam, make the cascade of solution（Water
Film）Vertical section is formed with electron beam curtain, it is ensured that feed liquid is by abundant irradiation.
Above-mentioned device 1 of making thinner is referred to will be the column solution Jing of pipeline flat（Duckbill）Outlet, share Cheng Shui
The hemispherical dome pipe of curtain, and the length for exporting is less than the width of electron beam curtain, width is less than 4mm, the wherein stream of solution
Dynamic speed is adjusted by the flow and pressure of delivery pump；Can also be micro- to carry out by changing the elevation-depression angle of device outlet of making thinner
Adjust flow velocity.
The bases for being used for neutralizing in step 1 polymerized monomer is sodium hydroxide, sodium bicarbonate, sodium carbonate, ammonium hydrogen carbonate
One or two in.
The product of gained is detected by following detection method：
1st, inhale 0.9%NaCl solution multiple to determine
Weigh 1g samples（It is accurate to 0.01g）.It is placed in 500mL beakers, adds 200mL0.9%NaCl aqueous solutions, places
60min, makes the abundant imbibition of sample.Then move into the normal test sieve of known quality（Aperture 0.125mm）In, natural mistake
Filter 10min.By testing sieve slant setting, then natural filtration 10min.Weigh testing sieve and gel sample gross mass.
As a result it is expressed as：
V = m3 - m2 - m1
In formula：
V-Water absorption, g/g；
M1-sample mass, g；
M2-testing sieve quality, g；
M3-testing sieve and gel sample gross mass, g.
2nd, determination of moisture（Gravimetric method）
Weigh 5g samples（It is accurate to 0.01g）, 105～110 DEG C of drying baker are placed in, 2h is dried, taking-up is moved in exsiccator,
30min is to room temperature for cooling, and as a result precise is expressed as follows：
W= （m4 - m5 ） × 100%
In formula：
W-moisture（H2O）Content mass percent, %；
Sample mass before m4-drying, g；
Sample mass after m5-drying, g.
3rd, pH is determined（PH pH meters）
Weigh 1g samples（It is accurate to 0.01g）.It is placed in 2000mL beakers, adds 1500mL deionized waters, stands and place
30min, after the abundant imbibition of sample, is determined with pH acidometers.Before measure, school is carried out to acidometer with standard buffer solution
Test.
Embodiment 1
（1）1000 parts of acrylic acid are put in blending tank, degree of neutralization are neutralized to for 77%, 2- third with 30% sodium hydroxide solution
50 weight portion of acrylamide -2- methyl propane sulfonic acids, addition N, 2 weight portion of N- di-2-ethylhexylphosphine oxides (methyl) acrylamide, Polyethylene Glycol
1 weight portion of diacrylate, 10 weight portion of dodecylbenzene sodium sulfonate, 10 weight portion of ethanol, stir to obtain material to be polymerized
Liquid；
（2）Will（1）The feed liquid prepared is flowed down by the chemical industry device that is pumped into making thinner, the electron beam irradiation on the parallel ground of Jing,
So that feed liquid absorbed dose reach 15kGy, gel sheet material is obtained final product；
（3）Will（2）The cleaved machine of gained gel sheet material cuts into the little micelles of 3mm；In 80-180 DEG C of drying semi-finished product
Granule.
（4）Will（3）100 parts of gained semi-finished granules add 5% surface-crosslinked liquid, control to react at 200 DEG C ± 10 DEG C
50min, when being cooled to 50 DEG C, the pure water mix homogeneously of spraying 3%, obtains final product super absorbent resin.
Embodiment 2
（1）1000 parts of acrylic acid are put in blending tank, degree of neutralization are neutralized to for 77%, 2- third with 30% sodium hydroxide solution
50 weight portion of acrylamide -2- methyl propane sulfonic acids, addition N, 3 weight portion of N- di-2-ethylhexylphosphine oxides (methyl) acrylamide, Polyethylene Glycol
0.3 weight portion of diacrylate, 5 weight portion of sodium lauryl sulphate, 8 weight portion of pentane, stir to obtain feed liquid to be polymerized；
（2）Will（1）The feed liquid prepared is flowed down by the chemical industry device that is pumped into making thinner, the electron beam irradiation on the parallel ground of Jing,
So that feed liquid absorbed dose reach 12kGy, gel sheet material is obtained final product；
（3）Will（2）The cleaved machine of gained gel sheet material cuts into the little micelles of 3mm；In 80-180 DEG C of drying semi-finished product
Granule.
（4）Will（3）Gained semi-finished granules add 6% surface-crosslinked liquid, control to react at 210 DEG C ± 10 DEG C
40min, when being cooled to 50 DEG C, the pure water mix homogeneously of spraying 3%, obtains final product super absorbent resin.
Ultimate principle, principal character and the advantage of the present invention has been shown and described above.The technical staff of the industry should
Understand, the present invention is not restricted to the described embodiments, the original for simply illustrating the present invention described in above-described embodiment and description
Reason, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes and improvements
Both fall within scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent
Boundary.
Claims (9)
1. a kind of electron beam irradiation processes the synthetic method of high-performance water-absorbing resin, comprises the steps：
（1）By 20～80 weight parts of polymer monomers, 0.02～5 weight portion time monomer, 0.001～1 parts by weight of crosslinking agent, 0.01～
During 5 weight other auxiliary agents add reactors, mix homogeneously obtains the feed liquid that is polymerized, wherein, it is 50 that the polymerized monomer is degree of neutralization
～90% acrylic acid；
（2）The polymerization feed liquid of flowing is placed under the electron beam irradiation of electron accelerator transmitting, that is, obtains water absorbent gel；
（3）By water absorbent gel cutting, drying, crush, screen, that is, obtaining semi-finished granules；
（4）Semi-finished granules are carried out into surface-crosslinked process, high-performance water-absorbing resin finished product is become, it is characterised in that：Step
（2）Described in the scanning window of electron accelerator be less than 20 degree parallel to the angle on ground or scanning window and ground, and list to be polymerized
Solution is divided into cascade by liquid solution Jing devices of making thinner, and is flowed down and is passed perpendicularly through electron beam, make molten from above electron beam curtain
The cascade of liquid forms vertical section with electron beam curtain.
2. a kind of electron beam irradiation according to claim 1 processes the synthetic method of high-performance water-absorbing resin, its feature
It is：The device of making thinner is by the column solution Jing of the pipeline flat hemispherical dome pipe for exporting and sharing into cascade and flat
Outlet length is less than the width of electron beam curtain, width and is less than 4mm.
3. a kind of electron beam irradiation according to any one in claim 1 or 2 processes the conjunction of high-performance water-absorbing resin
Into method, it is characterised in that：Described monomer is 2- acrylamide -2- methyl propane sulfonic acids, the one kind in acrylamide.
4. a kind of electron beam irradiation according to claim 3 processes the synthetic method of high-performance water-absorbing resin, its feature
It is：The cross-linking agent is N, one kind in N- di-2-ethylhexylphosphine oxides (methyl) acrylamide, polyethylene glycol dimethacrylate or
Two kinds.
5. a kind of electron beam irradiation according to claim 4 processes the synthetic method of high-performance water-absorbing resin, its feature
It is：Described other auxiliary agents are ethylenediaminetetraacetic acid and its esters, polyphosphate, citrate；Or be detergent alkylate
Sodium sulfonate, sodium lauryl sulphate, alkyl alcohol ethoxylates sulfate；Or be bentonite, silicon dioxide, kieselguhr；Or
Person is polyacrylic acid, the polymer of polyacrylamide；Or be ethanol, pentane；One or more in above auxiliary agent.
6. a kind of electron beam irradiation according to claim 5 processes the synthetic method of high-performance water-absorbing resin, its feature
It is：Bases for neutralizing the polymerized monomer of acrylic or methacrylic acids is sodium hydroxide, sodium bicarbonate, carbonic acid
One or two in hydrogen ammonium, sodium carbonate.
7. a kind of electron beam irradiation according to claim 6 processes the synthetic method of high-performance water-absorbing resin, its feature
It is：Step（4）In surface-crosslinked process when add surface-crosslinked liquid, the surface-crosslinked liquid is by poly epihydric alcohol base chemical combination
Thing, polyhydric alcohol are a kind of and various mix.
8. a kind of electron beam irradiation according to claim 7 processes the synthetic method of high-performance water-absorbing resin, its feature
It is：The poly epihydric alcohol based compound polyethyleneglycol diglycidylether or Ethylene glycol diglycidyl ether, it is described polynary
Alcohol is 1,2-Propylene Glycol, the ethoxylate of 1,4-butanediol or ethylene glycol and their ester, carboxylic acid or carbonic acid.
9. a kind of electron beam irradiation according to claim 8 processes the synthetic method of high-performance water-absorbing resin, its feature
It is：When carrying out electron beam irradiation, within 260 ms/min, the absorbed dose of product are the flow speed control of the feed liquid that is polymerized
500Gy-30kGy。
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| CN105037606A (en) * | 2015-08-31 | 2015-11-11 | 中广核达胜加速器技术有限公司 | Carbomer resin and preparing method thereof |
| CN105085768A (en) * | 2015-09-18 | 2015-11-25 | 中广核达胜加速器技术有限公司 | Method for processing high-performance water-absorbent resin through electron beam irradiation |
| CN109265604A (en) * | 2018-09-25 | 2019-01-25 | 中广核达胜加速器技术有限公司 | A kind of preparation method of high molecular weight cation polyacrylamide |
| CN111803854A (en) * | 2020-07-21 | 2020-10-23 | 中国矿业大学 | Nano-polymer aerogel fire extinguishing material for preventing and treating high-temperature coal fire and preparation method thereof |
| CN113355103A (en) * | 2021-06-28 | 2021-09-07 | 内蒙古农业大学 | Porous material for desert afforestation water retention and preparation method thereof |
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| CN102336861A (en) * | 2011-07-01 | 2012-02-01 | 东莞市赛璞实业有限公司 | Polyacrylate super absorbent resin and preparation method thereof |
| CN102617781A (en) * | 2012-03-16 | 2012-08-01 | 珠海农神生物科技有限公司 | Synthesis method for resin with high water absorbability |
| CN103360555A (en) * | 2013-07-31 | 2013-10-23 | 苏州大学 | Super absorbent resin with high absorbent velocity and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102336861A (en) * | 2011-07-01 | 2012-02-01 | 东莞市赛璞实业有限公司 | Polyacrylate super absorbent resin and preparation method thereof |
| CN102617781A (en) * | 2012-03-16 | 2012-08-01 | 珠海农神生物科技有限公司 | Synthesis method for resin with high water absorbability |
| CN103360555A (en) * | 2013-07-31 | 2013-10-23 | 苏州大学 | Super absorbent resin with high absorbent velocity and preparation method |
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