CN107722161A - A kind of clay grinding macromolecule diluent and preparation method thereof - Google Patents
A kind of clay grinding macromolecule diluent and preparation method thereof Download PDFInfo
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- CN107722161A CN107722161A CN201710879314.7A CN201710879314A CN107722161A CN 107722161 A CN107722161 A CN 107722161A CN 201710879314 A CN201710879314 A CN 201710879314A CN 107722161 A CN107722161 A CN 107722161A
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- diluent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polymerisation Methods In General (AREA)
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of clay grinding macromolecule diluent and preparation method thereof, clay grinding is as follows with the preparation method of macromolecule diluent：Acrylic monomer, chain-transferring agent and water are well mixed, the pH value for adding aqueous slkali to reaction solution is 7~8, is vacuumized, add initiator, polymerisation is carried out, the pH value that aqueous slkali is added after the cooling of question response liquid to reaction solution is 8~9, obtains clay grinding macromolecule diluent.The clay grinding of the present invention is with macromolecule diluent addition is small, thinning effect is good, water-reducing effect is excellent, cost is low, stability is good, the dispersiveness of clay and the efficiency of grinding can be significantly improved, its simple production process, there is Atom economy, it need not be post-processed, it is green.
Description
Technical field
The present invention relates to a kind of clay grinding macromolecule diluent and preparation method thereof, belongs to ceramic ball-milling additive neck
Domain.
Background technology
Ceramic is with a long history, has become a part indispensable in people's daily life, with the hair of society
Exhibition, requirement of the people to ceramic also more and more higher., it is necessary to which clay to be ground to certain particle size range when manufacturing ceramic,
The high-quality requirement of terra cotta can be met., it is necessary to be diluted with water in clay process of lapping, completed when clay is ground
Afterwards, in removal clay more than 90% water is needed again, could enter next process, and if in clay process of lapping reclaimed water
Addition is too big, and energy consumption dramatically increases when inevitably resulting in water removal.Therefore, it is necessary to add diluent in clay process of lapping
To reduce the viscosity of system, and then reduce the addition of water.
At present, clay grinding can be largely classified into following a few classes with diluent：Inorganic salts, organic molecule class and compound
Water reducer.Inorganic salts development is more ripe, but its molecular structure and molecular weight are uncontrollable, and addition is big during use, diminishing effect
Fruit is poor；The water-reducing effect of organic molecule class is preferable, but its cost is higher, stability is poor；The cost of composite water-reducing agent is low, suitable
Answering property is good, but its diminishing limited efficacy, can not meet high water reducing rate, the high-stability requirement of advanced ceramics production.
Therefore, the clay that a kind of addition of exploitation is small, water-reducing effect is excellent, cost is low, stability is good is needed badly to grind with dilute
Release agent.
The content of the invention
It is an object of the invention to provide a kind of clay grinding macromolecule diluent and preparation method thereof.
The technical solution used in the present invention is：
A kind of clay grinding preparation method of macromolecule diluent, comprises the following steps：Comprise the following steps：By propylene
Acrylic monomer, chain-transferring agent and water are well mixed, and the pH value for adding aqueous slkali to reaction solution is 7~8, vacuumizes, adds and trigger
Agent, polymerisation is carried out, the pH value that aqueous slkali is added after the cooling of question response liquid to reaction solution is 8~9, obtains clay grinding height
Molecular dilution agent.
Described acrylic monomer is acrylic acid, ALS, maleic anhydride, 2- acrylamide -2- methyl-props
At least one of sulfonic acid, the quality of acrylic monomer account for the 30%~45% of acrylic monomer and water gross mass.
Described chain-transferring agent is S, S '-two (α, α '-methyl-α "-acetic acid) trithiocarbonate, the quality of chain-transferring agent
Account for the 1%~4% of acrylic monomer and water gross mass.
Described initiator is ammonium persulfate, the quality of initiator account for acrylic monomer and water gross mass 0.3%~
2.0%.
Described polymerisation is carried out at 60~75 DEG C, and the reaction time is 4~6h.
Described initiator is added drop-wise in reaction solution in form of an aqueous solutions, and 0.6~2h is added dropwise.
Described aqueous slkali is the sodium hydroxide solution of mass fraction 40%~60%.
The beneficial effects of the invention are as follows：The present invention clay grinding with macromolecule diluent addition is small, thinning effect is good,
Water-reducing effect is excellent, cost is low, stability is good, can significantly improve the dispersiveness of clay and the efficiency of grinding, its production technology
Simply, there is Atom economy, it is green without being post-processed.
Embodiment
A kind of clay grinding preparation method of macromolecule diluent, comprises the following steps：Acrylic monomer, chain are turned
Move agent and water is well mixed, the pH value for adding aqueous slkali to reaction solution is 7~8, vacuumizes, adds initiator, polymerize instead
Should, the pH value that aqueous slkali is added after the cooling of question response liquid to reaction solution is 8~9, obtains clay grinding macromolecule diluent.
Preferably, described acrylic monomer is acrylic acid, ALS, maleic anhydride, 2- acrylamides -2-
At least one of methyl propane sulfonic acid, the quality of acrylic monomer account for acrylic monomer and water gross mass 30%~
45%.
It is further preferred that described acrylic monomer is acrylic acid, ALS, maleic anhydride and 2- propylene
Acid amides -2- methyl propane sulfonic acids are according to mass ratio (55~65)：(10~15)：(10~20)：The mixture that (10~20) are formed.
Preferably, described chain-transferring agent is S, S '-two (α, α '-methyl-α "-acetic acid) trithiocarbonate, chain tra nsfer
The quality of agent accounts for the 1%~4% of acrylic monomer and water gross mass.
Preferably, described initiator is ammonium persulfate, and the quality of initiator accounts for acrylic monomer and water gross mass
0.3%~2.0%.
Preferably, described polymerisation is carried out at 60~75 DEG C, and the reaction time is 4~6h.
Preferably, described initiator is added drop-wise in reaction solution in form of an aqueous solutions, and 0.6~2h is added dropwise.
Preferably, described aqueous slkali is the sodium hydroxide solution of mass fraction 40%~60%.
The present invention is made further explanation and description with reference to specific embodiment.
Embodiment 1：
Macromolecule diluent is used in a kind of clay grinding, is prepared by following methods：
By 35g acrylic monomers (acrylic acid, ALS, maleic anhydride, 2- acrylamide -2- methyl-prop sulphurs
The mass ratio of acid is 60:10:10:20) (α, α '-methyl-α "-acetic acid) trithiocarbonate of, 1.0g S, S '-two and 65mL are gone
Ionized water is uniformly mixed, and sodium hydroxide solution to the pH value of reaction solution for adding mass fraction 50% is 7, vacuumizes, rises
To 70 DEG C the aqueous solution (containing ammonium persulfate 0.3g) of ammonium persulfate is slowly added dropwise, 0.7h is added dropwise, 70 DEG C of isothermal reactions in temperature
5h, reaction solution is then cooled to room temperature, sodium hydroxide solution to the pH value of reaction solution for adding mass fraction 50% is 8, is obtained
To clay grinding macromolecule diluent.
Performance test：
After tested, the weight average molecular weight of clay grinding macromolecule diluent is 24700, PDI 1.29；Add in slurry
Add the clay grinding macromolecule diluent for accounting for clay quality 0.2%, the viscosity of slurry system is 360mPas, flowing time
For 54s, do not occur sedimentation phenomenon after left undisturbed overnight, stability is good, and the rupture strength of obtained clay idiosome is relatively not added with clay
Diluent improves 210%.
Embodiment 2：
Macromolecule diluent is used in a kind of clay grinding, is prepared by following methods：
By 38g acrylic monomers (acrylic acid, ALS, maleic anhydride, 2- acrylamide -2- methyl-prop sulphurs
The mass ratio of acid is 55:15:20:10) (α, α '-methyl-α "-acetic acid) trithiocarbonate of, 2.1g S, S '-two and 62mL are gone
Ionized water is uniformly mixed, and sodium hydroxide solution to the pH value of reaction solution for adding mass fraction 50% is 7, vacuumizes, rises
The aqueous solution (containing ammonium persulfate 1.2g) of ammonium persulfate is slowly added dropwise to 65 DEG C in temperature, and 1h is added dropwise, 65 DEG C of isothermal reaction 4h,
Then reaction solution is cooled to room temperature, sodium hydroxide solution to the pH value of reaction solution for adding mass fraction 50% is 8, is made pottery
Macromolecule diluent is used in soil grinding.
Performance test：
After tested, the weight average molecular weight of clay grinding macromolecule diluent is 17100, PDI 1.21；Add in slurry
Add the clay grinding macromolecule diluent for accounting for clay quality 0.2%, the viscosity of slurry system is 340mPas, flowing time
For 50s, do not occur sedimentation phenomenon after left undisturbed overnight, stability is good, and the rupture strength of obtained clay idiosome is relatively not added with clay
Diluent improves 240%.
Embodiment 3：
Macromolecule diluent is used in a kind of clay grinding, is prepared by following methods：
By 40g acrylic monomers (acrylic acid, ALS, maleic anhydride, 2- acrylamide -2- methyl-prop sulphurs
The mass ratio of acid is 65:15:10:10) (α, α '-methyl-α "-acetic acid) trithiocarbonate of, 4.0g S, S '-two and 60mL are gone
Ionized water is uniformly mixed, and sodium hydroxide solution to the pH value of reaction solution for adding mass fraction 50% is 8, vacuumizes, rises
To 60 DEG C the aqueous solution (containing ammonium persulfate 2.0g) of ammonium persulfate is slowly added dropwise, 1.5h is added dropwise, 60 DEG C of isothermal reactions in temperature
6h, reaction solution is then cooled to room temperature, sodium hydroxide solution to the pH value of reaction solution for adding mass fraction 40% is 9, is obtained
To clay grinding macromolecule diluent.
Performance test：
After tested, the weight average molecular weight of clay grinding macromolecule diluent is 21100, PDI 1.32；Add in slurry
Add the clay grinding macromolecule diluent for accounting for clay quality 0.2%, the viscosity of slurry system is 300mPas, flowing time
For 49s, do not occur sedimentation phenomenon after left undisturbed overnight, stability is good, and the rupture strength of obtained clay idiosome is relatively not added with clay
Diluent improves 260%.
Embodiment 4：
Macromolecule diluent is used in a kind of clay grinding, is prepared by following methods：
By 35g acrylic monomers (acrylic acid, ALS, maleic anhydride, 2- acrylamide -2- methyl-prop sulphurs
The mass ratio of acid is 60:10:15:15) (α, α '-methyl-α "-acetic acid) trithiocarbonate of, 2.6g S, S '-two and 65mL are gone
Ionized water is uniformly mixed, and sodium hydroxide solution to the pH value of reaction solution for adding mass fraction 50% is 7, vacuumizes, rises
To 65 DEG C the aqueous solution (containing ammonium persulfate 1.4g) of ammonium persulfate is slowly added dropwise, 1.2h is added dropwise, 65 DEG C of isothermal reactions in temperature
6h, reaction solution is then cooled to room temperature, sodium hydroxide solution to the pH value of reaction solution for adding mass fraction 55% is 9, is obtained
To clay grinding macromolecule diluent.
Performance test：
After tested, the weight average molecular weight of clay grinding macromolecule diluent is 15400, PDI 1.19；Add in slurry
Add the clay grinding macromolecule diluent for accounting for clay quality 0.2%, the viscosity of slurry system is 375mPas, flowing time
For 60s, do not occur sedimentation phenomenon after left undisturbed overnight, stability is good, and the rupture strength of obtained clay idiosome is relatively not added with clay
Diluent improves 160%.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (9)
- A kind of 1. preparation method of clay grinding macromolecule diluent, it is characterised in that：Comprise the following steps：By acrylic compounds Monomer, chain-transferring agent and water are well mixed, and the pH value for adding aqueous slkali to reaction solution is 7~8, vacuumizes, adds initiator, enter Row polymerisation, the pH value that aqueous slkali is added after the cooling of question response liquid to reaction solution is 8~9, obtains clay grinding macromolecule Diluent.
- 2. preparation method according to claim 1, it is characterised in that：Described acrylic monomer is acrylic acid, allyl At least one of base sodium sulfonate, maleic anhydride, 2- acrylamide-2-methyl propane sulfonics, the quality of acrylic monomer accounts for third The 30%~45% of alkene acrylic monomer and water gross mass.
- 3. preparation method according to claim 2, it is characterised in that：Described acrylic monomer is acrylic acid, allyl Base sodium sulfonate, maleic anhydride and 2- acrylamide-2-methyl propane sulfonics are according to mass ratio (55~65)：(10~15)：(10~ 20)：The mixture that (10~20) are formed.
- 4. preparation method according to claim 1, it is characterised in that：Described chain-transferring agent is S, (α, α '-first of S '-two Base-α "-acetic acid) trithiocarbonate, the quality of chain-transferring agent accounts for the 1%~4% of acrylic monomer and water gross mass.
- 5. preparation method according to claim 1, it is characterised in that：Described initiator is ammonium persulfate, initiator Quality accounts for the 0.3%~2.0% of acrylic monomer and water gross mass.
- 6. preparation method according to claim 1, it is characterised in that：Described polymerisation is carried out at 60~75 DEG C, Reaction time is 4~6h.
- 7. preparation method according to claim 1, it is characterised in that：Described initiator is added drop-wise in form of an aqueous solutions In reaction solution, 0.6~2h is added dropwise.
- 8. preparation method according to claim 1, it is characterised in that：Described aqueous slkali is mass fraction 40%~60% Sodium hydroxide solution.
- 9. macromolecule diluent is used in the clay grinding that in claim 1~8 prepared by any one methods described.
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| CN201710879314.7A CN107722161B (en) | 2017-09-26 | 2017-09-26 | Polymer diluent for clay grinding and preparation method thereof |
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| CN201710879314.7A CN107722161B (en) | 2017-09-26 | 2017-09-26 | Polymer diluent for clay grinding and preparation method thereof |
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| CN107722161A true CN107722161A (en) | 2018-02-23 |
| CN107722161B CN107722161B (en) | 2020-10-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675504A (en) * | 2012-05-09 | 2012-09-19 | 中科院广州化学有限公司 | Efficient water reducing agent for low-thixotropy ceramic slurry and preparation method thereof |
| CN102898575A (en) * | 2012-06-08 | 2013-01-30 | 深圳市国大长兴科技有限公司 | Ceramic slurry high-solid content promoter and preparation method 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 |
| CN103304244A (en) * | 2012-12-20 | 2013-09-18 | 中科院广州化学有限公司 | High-polymer water reducing agent for ceramic concentrated suspension as well as preparation method and application of high-polymer water reducing agent |
-
2017
- 2017-09-26 CN CN201710879314.7A patent/CN107722161B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675504A (en) * | 2012-05-09 | 2012-09-19 | 中科院广州化学有限公司 | Efficient water reducing agent for low-thixotropy ceramic slurry and preparation method thereof |
| CN102898575A (en) * | 2012-06-08 | 2013-01-30 | 深圳市国大长兴科技有限公司 | Ceramic slurry high-solid content promoter and preparation method thereof |
| CN103304244A (en) * | 2012-12-20 | 2013-09-18 | 中科院广州化学有限公司 | High-polymer water reducing agent for ceramic concentrated suspension as well as preparation method and application of high-polymer water reducing agent |
| 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 |
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Address after: 510665 Guangzhou, Guangdong, Tianhe District Province Road West, No. 318 Patentee after: Institute of chemical engineering, Guangdong Academy of Sciences Address before: 510665 Guangzhou, Guangdong, Tianhe District Province Road West, No. 318 Patentee before: GUANGDONG RESEARCH INSTITITUTE OF PETROCHEMICAL AND FINE CHEMICAL ENGINEERING |