CN102775546A - Branched polyacrylic acid dispersant, and preparation method and application thereof - Google Patents
Branched polyacrylic acid dispersant, and preparation method and application thereof Download PDFInfo
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- CN102775546A CN102775546A CN2011101197028A CN201110119702A CN102775546A CN 102775546 A CN102775546 A CN 102775546A CN 2011101197028 A CN2011101197028 A CN 2011101197028A CN 201110119702 A CN201110119702 A CN 201110119702A CN 102775546 A CN102775546 A CN 102775546A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002270 dispersing agent Substances 0.000 title abstract description 7
- 229920002125 Sokalan® Polymers 0.000 title abstract 3
- 239000004584 polyacrylic acid Substances 0.000 title abstract 3
- 239000000178 monomer Substances 0.000 claims abstract description 22
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims abstract description 6
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims abstract description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000001530 fumaric acid Substances 0.000 claims abstract description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 32
- 239000006185 dispersion Substances 0.000 claims description 22
- 239000003999 initiator Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000002829 reductive effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 150000007513 acids Chemical class 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- 238000001238 wet grinding Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- HCLJOFJIQIJXHS-UHFFFAOYSA-N 2-[2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOCCOC(=O)C=C HCLJOFJIQIJXHS-UHFFFAOYSA-N 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- JPAOMENBKRZQDR-UHFFFAOYSA-N CC=CC.[Na] Chemical compound CC=CC.[Na] JPAOMENBKRZQDR-UHFFFAOYSA-N 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 239000012670 alkaline solution Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- XZKRXPZXQLARHH-UHFFFAOYSA-N buta-1,3-dienylbenzene Chemical compound C=CC=CC1=CC=CC=C1 XZKRXPZXQLARHH-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 125000004386 diacrylate group Chemical group 0.000 claims description 2
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 2
- 239000011790 ferrous sulphate Substances 0.000 claims description 2
- 238000010528 free radical solution polymerization reaction Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000001488 sodium phosphate Substances 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 2
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 claims 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 12
- 238000000227 grinding Methods 0.000 abstract description 9
- 239000002002 slurry Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 6
- 238000005054 agglomeration Methods 0.000 abstract description 2
- 230000002776 aggregation Effects 0.000 abstract description 2
- DZSVIVLGBJKQAP-UHFFFAOYSA-N 1-(2-methyl-5-propan-2-ylcyclohex-2-en-1-yl)propan-1-one Chemical compound CCC(=O)C1CC(C(C)C)CC=C1C DZSVIVLGBJKQAP-UHFFFAOYSA-N 0.000 abstract 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 abstract 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 abstract 1
- 150000004291 polyenes Chemical class 0.000 abstract 1
- BUQNAQHRHJBFMN-UHFFFAOYSA-M sodium 1-oxobut-2-ene-1-sulfonate Chemical compound CC=CC(=O)S(=O)(=O)[O-].[Na+] BUQNAQHRHJBFMN-UHFFFAOYSA-M 0.000 abstract 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a branched polyacrylic acid dispersant, and a preparation method and application thereof. According to the invention, polyene monomers are introduced into molecular chains of a linear sodium polyacrylate dispersant so as to obtain a branched dispersant structure which allows the branched polyacrylic acid dispersant to better clad cross sections newly occurred after grinding, and therefore, grinding and dispersing efficiency is improved; furthermore, methacrylic acid, maleic anhydride, fumaric acid, itaconic acid, sodium methylacrylsulfonate, 2-acrylamide-2-methylpropanesulfonic acid (AMPS) and the like are introduced and can provide monomers with stronger negative charges, improve electrostatic repulsion action of double electric layers, mitigate agglomeration among calcium carbonate particles and reduce the viscosity of ground slurry. The dispersant provided by the invention enables high efficiency in grinding of calcium carbonate to be obtained and the slurry to have the characteristics of low viscosity, good dispersibility and stability.
Description
Technical field
The present invention relates to a kind of synthetic macromolecule calcium carbonate wet grinding dispersing agent, especially a kind of branched p 0 lypropylene acids dispersion agent that is used to be coated with the lime carbonate grinding.
Technical background
Water-ground limestone (GCC) is a kind of non-metallic minerals powder of widespread use, and whiteness is high, opacifying power is good, flowability is good, is the main source of paper grade (stock) coating.Paper grade (stock) coating requires high dense low glutinous, makes water-ground limestone be dispersed into high density and becomes extremely important.The water-ground limestone that is used for papermaking paint is a kind of subparticle that behind wet-milling lime carbonate, obtains, and particulate fineness rank is different different because of purposes, can be thick slightly like the primary coat GCC of coating, and face is coated with GCC must be tiny, and fineness reaches (＜2 μ m) more than 95%.Grain breakage process surface molecular is in nonequilibrium state, and its inside or surface molecular all have magnetism to a certain degree.Further during refinement, have active surface area and can become very big, this moment, the fine particle surface tension was just extended the material of catching around it, and more serious along with the granularity super-refinement.From thermodynamic (al) angle, because superfine powder has huge specific surface area, its surface energy is quite big, causes system to be in the unsettled thermodynamic state of antipode.And in the solid miniaturization process; Internal bond strength, the lattice of small-particle constantly are destroyed, and particle surface forms many unsaturated link(age)s, and the total energy of particulate surfactivity and system is constantly increased; Make the surface properties of ultrafine powder become more active, must absorption material on every side.Therefore to reach and grind rank preferably, must in medium, add dispersion agent with stable particle.
Summary of the invention
In order to solve the dissatisfactory problem of the stabilization of dispersion agent in the prior art; One of the object of the invention is to provide a kind of branched p 0 lypropylene acids dispersion agent that lime carbonate grinds that is used to be coated with; Its unique molecular chain structure can better coat it to grinding the new cross section that produces, and makes to grind and disperses and can carry out efficiently smoothly, the electrostatic double layer Coulomb repulsion effect of dispersion agent of the present invention simultaneously; Can reduce the agglomeration between calcium carbonate granule, reduce the viscosity of slurry.
In order to achieve the above object, the present invention adopts following technical scheme:
Novel branched polyacrylic dispersion agent of the present invention; Be to be processed by the raw material of following mass fraction: Acrylic Acid Monomer is 18～20 parts; The comonomer total amount is 5～7 parts, and polyenoid class monomer is 3～5 parts, alkaline matter 16-18 part; The oxygenant reductive agent summation of initiator system is 2～3 parts, and water is 47-56 part.
Another object of the present invention provides a kind of method for preparing said branched p 0 lypropylene acids dispersion agent, and the technical scheme that is adopted is:
With vinylformic acid is the principal reaction monomer; One or more monomers among adding methylacrylic acid, maleic anhydride, fumaric acid, methylene-succinic acid, methylpropene sodium sulfonate, the AMPS (2-acrylic amide-2-methyl propane sulfonic acid) are as comonomer; Add polyenoid class monomer in addition; With the redox system is initiator system, forms through aqueous solution polymerization, neutralizes with alkaline matter at last.
Concrete, undertaken by following operation steps:
(1) reductive agent of a certain amount of water and initiator system is added in the reactor drum as bed material stirring and dissolving;
(2) with Acrylic Acid Monomer, comonomer, polyenoid class monomer, a certain amount of water wiring solution-forming, and with the alkaline matter neutralization, the residue reductive agent that adds initiator system again is made into dropping liquid A;
(3) oxygenant of initiator system, a certain amount of water are made into dropping liquid B;
(4) mode of solution A, B being taked to drip joins in the described reactor drum of step (1), carries out polyreaction then, after reaction finishes, and cooling, with the alkaline matter neutralization, blowing gets final product at last.
Wherein, the polyenoid class monomer of said adding is a kind of in pentaerythritol triacrylate, polyethyleneglycol diacrylate, polyethylene glycol dimethacrylate, Vinylstyrene, the Viscoat 335HP or their combination.
Wherein, said initiator system is one or both the compound uses in Sodium Persulfate-inferior sodium phosphate system, ammonium persulfate-sodium bisulfite, the hydrogen peroxide-ferrous sulfate system; The oxygenant in the said initiator system and the part by weight of reductive agent are 1: 2-1.25: 2.
Wherein, raw materials used mass fraction is: Acrylic Acid Monomer is 18～20 parts, and the comonomer total amount is 5～7 parts, and polyenoid class monomer is 3～5 parts, alkaline matter 16-18 part, and the oxygenant reductive agent summation of initiator system is 2～3 parts, water is 47-56 part.
Wherein, said alkaline matter is a sheet alkali, and the alkaline solution that is made into 40-45% uses; Use wherein and be 4-5 with the pH value of solution value.
Wherein, the temperature of described polyreaction is 80-87 ℃; The time of said dropping is 5-5.5h; Said polymerization reaction time is 1-1.5h.
Can prepare the branched p 0 lypropylene acids dispersion agent that lime carbonate grinds that is used to be coated with of the presently claimed invention with aforesaid method.
Prepared dispersion agent can be used its dispersion agent as wet-milling lime carbonate.
Preparation technology of the present invention, it is owing to adopt the dropping synthesis technique, and the reaction process heat release is few, reacting balance, temperature of reaction is low, and technological process is simple, and the cooling blowing got final product after reaction reached requirement, can well realize in the industry.
The practical implementation method
Below in conjunction with specific embodiment and Comparative Examples the inventive method and advantage are made further comparative descriptions.
The preparation of novel branched polyacrylic dispersion agent is carried out according to the following steps:
(1) reductive agent of a certain amount of water and initiator system is added in the reactor drum as bed material stirring and dissolving;
(2) with Acrylic Acid Monomer, comonomer, polyenoid class monomer, a certain amount of water wiring solution-forming, and to use alkaline matter to be neutralized to pH be about 4, and the residue reductive agent that adds initiator system again is made into dropping liquid A;
(3) oxygenant of initiator system, a certain amount of water are made into dropping liquid B;
(4) mode of solution A, B being taked to drip at a certain temperature joins in the described reactor drum of step (1) within a certain period of time, reacts for some time stopped reaction again, is cooled to below 50 ℃, and using alkaline matter to be neutralized to pH is about 5, and blowing gets final product.
Wherein, the time of dropping is 5-5.5h; The temperature of polyreaction is 80-87 ℃; Polymerization reaction time is 1-1.5h.
The consumption of embodiment medicine and product that obtains such as following table:
The preparation of calcium carbonate slurry:
Dispersion agent and the example grinding dispersion under same technology as a comparison of commercially available ZX-I dispersion agent with embodiment of the invention 1-5.
Grind dispersing technology:
In the steel basin of 100kg, add the kg premium on currency, open stirring, add dispersion agent 260g, stir, add 325 order lime carbonate 75kg and carry out pre-dispersedly, after being uniformly dispersed, with being pumped in two placed in-line shredders, grinding medium is the zirconium pearl.Add the 240g dispersion agent after grinding 1h.Both continue to grind behind the 6h heavy calcium carbonate slurry, solid content is 75% slurry.
Adopt the ISO2884-2-2003 standard code, use NDJ-1 type rotational viscosimeter to record slurry viscosity and be 231cps.Particle diameter is tested by the particle diameter appearance.Each sample data is seen table:
Can find out under the same grinding condition that from last table use the dispersion agent of embodiment of the invention 1-5, slurry viscosity is low, particle diameter is little, good dispersivity and more stable.
The above is merely preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and in spirit that claim of the present invention limited and scope, can carry out many changes to it, revise, in addition equivalent, but all will fall in protection scope of the present invention.
Claims (10)
1. the preparation method of a branched p 0 lypropylene acids dispersion agent; Be to be the principal reaction monomer with vinylformic acid; One or more monomers among adding methylacrylic acid, maleic anhydride, fumaric acid, methylene-succinic acid, methylpropene sodium sulfonate, the AMPS add polyenoid class monomer in addition as comonomer, are initiator system with the redox system; Form through aqueous solution polymerization, neutralize with alkaline matter.
2. preparation method according to claim 1, specifically undertaken by following operation steps:
(1) reductive agent of a certain amount of water and initiator system is added in the reactor drum as bed material stirring and dissolving;
(2) with Acrylic Acid Monomer, comonomer, polyenoid class monomer, a certain amount of water wiring solution-forming, and with the alkaline matter neutralization, the residue reductive agent that adds initiator system again is made into dropping liquid A;
(3) oxygenant of initiator system, a certain amount of water are made into dropping liquid B;
(4) mode of solution A, B being taked to drip joins in the described reactor drum of step (1), carries out polyreaction then, after reaction finishes, and cooling, with the alkaline matter neutralization, blowing gets final product at last.
3. preparation method according to claim 2, the polyenoid class monomer that it is characterized in that said adding is a kind of in pentaerythritol triacrylate, polyethyleneglycol diacrylate, polyethylene glycol dimethacrylate, Vinylstyrene, the Viscoat 335HP or their combination.
4. preparation method according to claim 2 is characterized in that said initiator system is one or both the compound uses in Sodium Persulfate-inferior sodium phosphate system, ammonium persulfate-sodium bisulfite, the hydrogen peroxide-ferrous sulfate system; The oxygenant in the said initiator system and the part by weight of reductive agent are 1: 2-1.25: 2.
5. preparation method according to claim 2; The mass fraction that it is characterized in that used each raw material is: Acrylic Acid Monomer is 18～20 parts; The comonomer total amount is 5～7 parts, and polyenoid class monomer is 3～5 parts, alkaline matter 16-18 part; The oxygenant reductive agent summation of initiator system is 2～3 parts, and water is 47-56 part.
6. preparation method according to claim 2 is characterized in that said alkaline matter is a sheet alkali, and the alkaline solution that is made into 40-45% uses.
7. preparation method according to claim 2 is characterized in that using alkaline matter neutralization solution pH value to be 4-5.
8. preparation method according to claim 2, the temperature that it is characterized in that described polyreaction is 80-87 ℃; The time of said dropping is 5-5.5h; The said reaction times is 1-1.5h.
9. the dispersion agent for preparing according to each said method of claim 1-8.
10. the application of dispersion agent according to claim 9 is with its dispersion agent as wet-milling lime carbonate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110119702.8A CN102775546B (en) | 2011-05-10 | 2011-05-10 | Branched polyacrylic acid dispersant, and preparation method and application thereof |
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| CN201110119702.8A CN102775546B (en) | 2011-05-10 | 2011-05-10 | Branched polyacrylic acid dispersant, and preparation method and application thereof |
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| CN102775546B CN102775546B (en) | 2014-04-30 |
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Cited By (11)
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| CN103030729A (en) * | 2012-12-06 | 2013-04-10 | 永港伟方（北京）科技股份有限公司 | Dispersant for grinding heavy calcium carbonate as well as synthetic method and application thereof |
| CN103275264A (en) * | 2013-05-08 | 2013-09-04 | 中科院广州化学有限公司 | Water reducing agent capable of reducing viscosity of slurry as well as preparation method and application thereof |
| CN103894108A (en) * | 2012-12-28 | 2014-07-02 | 南通市晗泰化工有限公司 | Block-type water-based polymer dispersant |
| CN104017119A (en) * | 2014-06-12 | 2014-09-03 | 东升新材料（山东）有限公司 | Dispersing agent for grinding triple superphosphate with branched structure and preparation method thereof |
| CN105837729A (en) * | 2016-02-26 | 2016-08-10 | 宁波市嘉化新材料科技有限公司 | Dispersing agent |
| CN105859941A (en) * | 2016-02-26 | 2016-08-17 | 宁波市嘉化新材料科技有限公司 | Dispersion type rheological agent |
| CN107540778A (en) * | 2017-08-31 | 2018-01-05 | 湖北工业大学 | The preparation method of wet-milling low-molecular-weight, anionic type polymeric dispersant |
| CN112645625A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Composite oil well cement polycarboxylic acid dispersant, and preparation method and application thereof |
| CN112724308A (en) * | 2020-12-31 | 2021-04-30 | 九洲生物技术（苏州）有限公司 | Dispersant, grinding dispersant and coating for papermaking coating |
| CN115785324A (en) * | 2023-02-09 | 2023-03-14 | 广东壮丽彩印股份有限公司 | Preparation method of dispersing agent for nano calcium carbonate |
| CN119330707A (en) * | 2024-12-19 | 2025-01-21 | 浙江金琨西立锆珠有限公司 | Yttrium stabilized zirconia beads and preparation process thereof |
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Cited By (16)
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| CN103030729A (en) * | 2012-12-06 | 2013-04-10 | 永港伟方（北京）科技股份有限公司 | Dispersant for grinding heavy calcium carbonate as well as synthetic method and application thereof |
| CN103030729B (en) * | 2012-12-06 | 2015-04-29 | 永港伟方（北京）科技股份有限公司 | Dispersant for grinding heavy calcium carbonate as well as synthetic method and application thereof |
| CN103894108A (en) * | 2012-12-28 | 2014-07-02 | 南通市晗泰化工有限公司 | Block-type water-based polymer dispersant |
| CN103894108B (en) * | 2012-12-28 | 2016-04-13 | 南通市晗泰化工有限公司 | Block type aqueous high molecular dispersant |
| CN103275264A (en) * | 2013-05-08 | 2013-09-04 | 中科院广州化学有限公司 | Water reducing agent capable of reducing viscosity of slurry as well as preparation method and application thereof |
| CN104017119A (en) * | 2014-06-12 | 2014-09-03 | 东升新材料（山东）有限公司 | Dispersing agent for grinding triple superphosphate with branched structure and preparation method thereof |
| CN105837729A (en) * | 2016-02-26 | 2016-08-10 | 宁波市嘉化新材料科技有限公司 | Dispersing agent |
| CN105859941A (en) * | 2016-02-26 | 2016-08-17 | 宁波市嘉化新材料科技有限公司 | Dispersion type rheological agent |
| CN107540778A (en) * | 2017-08-31 | 2018-01-05 | 湖北工业大学 | The preparation method of wet-milling low-molecular-weight, anionic type polymeric dispersant |
| CN107540778B (en) * | 2017-08-31 | 2020-12-01 | 湖北工业大学 | Preparation method of low molecular weight anionic polymer dispersant for wet grinding |
| CN112645625A (en) * | 2019-10-12 | 2021-04-13 | 中国石油化工股份有限公司 | Composite oil well cement polycarboxylic acid dispersant, and preparation method and application thereof |
| CN112645625B (en) * | 2019-10-12 | 2022-07-05 | 中国石油化工股份有限公司 | Composite oil well cement polycarboxylic acid dispersant, and preparation method and application thereof |
| CN112724308A (en) * | 2020-12-31 | 2021-04-30 | 九洲生物技术（苏州）有限公司 | Dispersant, grinding dispersant and coating for papermaking coating |
| CN112724308B (en) * | 2020-12-31 | 2023-03-10 | 九洲生物技术（苏州）有限公司 | Dispersant, grinding dispersant and coating for papermaking coating |
| CN115785324A (en) * | 2023-02-09 | 2023-03-14 | 广东壮丽彩印股份有限公司 | Preparation method of dispersing agent for nano calcium carbonate |
| CN119330707A (en) * | 2024-12-19 | 2025-01-21 | 浙江金琨西立锆珠有限公司 | Yttrium stabilized zirconia beads and preparation process thereof |
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