CN114524905A - Efficient environment-friendly ceramic dispergator and preparation method thereof - Google Patents

Efficient environment-friendly ceramic dispergator and preparation method thereof Download PDF

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Publication number
CN114524905A
CN114524905A CN202210014510.9A CN202210014510A CN114524905A CN 114524905 A CN114524905 A CN 114524905A CN 202210014510 A CN202210014510 A CN 202210014510A CN 114524905 A CN114524905 A CN 114524905A
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monomer
acid
efficient environment
friendly ceramic
deionized water
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余帅杰
朱火明
陈兵
水中和
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Foshan Huayi New Material Co ltd
Wuhan University of Technology WUT
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Foshan Huayi New Material Co ltd
Wuhan University of Technology WUT
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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
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/02—Acids; Metal salts or ammonium salts thereof, e.g. maleic acid or itaconic acid
    • 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
    • C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/6344—Copolymers containing at least three different monomers
    • 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
    • C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63444—Nitrogen-containing polymers, e.g. polyacrylamides, polyacrylonitriles, polyvinylpyrrolidone [PVP], polyethylenimine [PEI]
    • 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
    • C04B35/63—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 using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • 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
    • 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
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/04—Anhydrides, e.g. cyclic anhydrides
    • C08F222/06—Maleic anhydride
    • 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
    • C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

The invention discloses a high-efficiency environment-friendly ceramic debonder which comprises a monomer A, a monomer B, a monomer C, an initiator, a chain transfer agent, an acid-base regulator and deionized water; wherein the monomer A is a natural extract monomer containing carboxylic acid or amino functional groups; the monomer B is a mixture of one or more of acrylic acid, methacrylic acid and maleic anhydride mixed in any proportion; the monomer C is a mixture of one or more of sodium allylsulfonate, sodium methallyl sulfonate and 2-acrylamide-2-methylpropanesulfonic acid mixed in any proportion.

Description

Efficient environment-friendly ceramic dispergator and preparation method thereof
Technical Field
The invention relates to the field of ceramic additives, in particular to a high-efficiency environment-friendly ceramic debonder and a preparation method thereof.
Background
At present, the ceramic powder is generally prepared by a wet powder preparation method in the ceramic industry, wherein the wet powder preparation method is to prepare slurry by ball milling water and raw materials, then spray-dry the slurry into granular powder by an atomization drying tower, and finally prepare the ceramic powder by screening and ageing. The ceramic debonder is also called as a water reducing agent, a dispersing agent and the like, and has the main function of destroying the flocculation structure of ceramic slurry particles, so that the slurry with lower water content still has better fluidity and lower viscosity, thereby reducing the drying time and energy consumption in the production process.
The development of ceramic debonders in China mainly goes through two stages, the first generation debonder is mainly inorganic debonder, and common debonder is water glass, carbonate, phosphate and the like which are added in a single or compound form. The second-generation debonder mainly comprises an organic micromolecule debonder and a composite debonder, and commonly comprises humate, lignosulfonate, humate-silicate and phosphate composite debonder, phosphate-silicate composite debonder and the like. In recent years, water-soluble polymer electrolytes represented by polycarboxylic acid copolymers have been developed rapidly, and have become a hot spot for research in the ceramic dispergator industry. Compared with the traditional inorganic debonder and the traditional micromolecule debonder, the polycarboxylic acid debonder has better adsorption effect with ceramic powder particles, and the prepared slurry has better fluidity and stability. Sodium polyacrylate is widely used as a polycarboxylic acid ceramic debonder, but the debonding performance of the sodium polyacrylate has a great space for improvement. The polycarboxylic acid has high degree of freedom in synthesis, and monomers with different functional groups can be introduced to improve the dispergation performance of the polycarboxylic acid.
Chinese patent application 201610134181.6 discloses a N-hydroxymethyl acrylamide modified polycarboxylic acid ceramic debonder and a normal-temperature preparation method and application thereof. The invention adopts vinyl carboxylic acid and N-hydroxymethyl acrylamide monomers to prepare the N-hydroxymethyl acrylamide modified polycarboxylic acid ceramic debonder through aqueous solution free radical polymerization. The prepared dispergator contains amino and carboxyl, can generate chelation with cations, and releases water adsorbed by hydrated cations, so that the slurry has good fluidity under the condition of low water content.
Chinese patent application 202010325044.7 discloses a copolymer debonding agent containing nitrogen polycarboxy acrylate salt, a preparation method and application thereof. The invention adopts ethylene diamine tetraacetic dianhydride, (methyl) acrylic acid-2-hydroxyethyl (propyl) ester and (methyl) acrylate as monomers, and prepares the nitrogenous polycarboxyl acrylate copolymer debonding agent through aqueous solution free radical polymerization. In the copolymer water reducing agent prepared by the invention, on one hand, carboxyl negative ions and metal ions form charge adsorption, on the other hand, lone pair electrons on N atoms form coordinate bonds to empty d orbitals of high-valence metal ions, stable 5-6-membered ring polycyclic compounds are integrally formed, and the strong hydrophilicity of the N atoms enables the formed compounds to be dissolved and dispersed in medium water, so that the interference of the high-valence metal ions on mud is greatly eliminated, and the dispersibility and the fluidity of slurry particles in an aqueous medium are continuously maintained.
However, it can be seen from the above patents that most of the raw materials adopted in the prior ceramic debonder are from petroleum resources, which are non-renewable resources, and the biodegradation rate is relatively slow, and the environmental pollution problem can be caused by long-term accumulation in the environment. Therefore, the efficient environment-friendly ceramic dispergator is prepared by searching for alternative or partially-alternative environment-friendly raw materials, and has wide market value and application prospect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the efficient environment-friendly ceramic debonder which is novel in technology, has low content of petroleum products in the components and can obviously improve the fluidity and the stability of ceramic slurry.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: an efficient environment-friendly ceramic debonder comprises a monomer A, a monomer B, a monomer C, an initiator, a chain transfer agent, an acid-base regulator and deionized water; wherein the monomer A is a natural extract monomer containing carboxylic acid or amino functional groups; the monomer B is a mixture of one or more of acrylic acid, methacrylic acid and maleic anhydride mixed in any proportion; the monomer C is a mixture of one or more of sodium allylsulfonate, sodium methallyl sulfonate and 2-acrylamide-2-methylpropanesulfonic acid mixed in any proportion.
Preferably, the monomer A is a mixture of one or more of carboxymethyl chitosan, glutamic acid, ferulic acid, itaconic acid and aconitic acid mixed in any proportion.
Preferably, the molar ratio of the monomer A to the monomer B is 1: 12-1: 2, and the molar ratio of the monomer C to the monomer B is 1: 8-1: 2.
Preferably, the chain transfer agent is a mixture of one or more of sodium bisulfite, potassium bisulfite, sodium hypophosphite and potassium hypophosphite mixed in any proportion; the chain transfer agent is 1-9% of the total mass of the monomer A, the monomer B and the monomer C.
Preferably, the deionized water accounts for 60-75% of the total mass of the deionized water and the monomer A, the monomer B and the monomer C.
Preferably, the initiator is a mixture of one or more of potassium persulfate, sodium persulfate and ammonium persulfate which are mixed in any proportion; the initiator is 0.2-5% of the total mass of the monomer A, the monomer B and the monomer C.
Preferably, the pH regulator is NaOH solution.
The invention also provides a preparation method of the efficient environment-friendly ceramic debonder, which comprises the following steps:
s1, adding a monomer A, a chain transfer agent and part of deionized water into a reaction kettle, heating to 50-80 ℃, and uniformly stirring and dissolving;
s2, respectively dissolving an initiator, a monomer B and a monomer C in partial deionized water, and simultaneously dropwise adding the mixture into the reaction kettle at a constant speed for 0.5-1.5 hours, keeping the temperature at 50-80 ℃ during dropwise adding, and stirring at a constant temperature;
s3, after the dropwise adding is finished, keeping the temperature and continuously reacting for 1-3 hours; after the reaction is finished, cooling the product to 40-50 ℃, adding 30% NaOH solution by mass fraction, and adjusting the pH to 7-8 to obtain a finished product.
Preferably, in the step S2, the mass percentage of the initiator solution is 1.0-28.6%, the mass percentage of the monomer B solution is 38.3-72.7%, and the mass percentage of the monomer C solution is 17.9-66.1%.
The invention has the beneficial effects that: after the monomers A, B and C are introduced into natural extract monomers (carboxymethyl chitosan, glutamic acid, ferulic acid, itaconic acid and aconitic acid), a polymer system contains sulfonic acid groups, a plurality of amino groups and a plurality of carboxyl functional groups, so that on one hand, the functional group density of the polymer system is increased, and the charge density of the polymer is increased. The polymer having anionic carboxyl and sulfonic acid groups is adsorbed on the surface of ceramic particles, resulting in the formation of a large electrostatic repulsive force between the particles, thereby effectively preventing the agglomeration of the ceramic particles. The amino, the sulfonic group and the carboxyl can also generate chelation with cations to release water adsorbed by the hydrated cations, so that the fluidity of the ceramic slurry can be obviously improved; on the other hand, the ferulic acid is a green water-soluble substance simultaneously containing a benzene ring structure, and the benzene ring structure increases the steric hindrance effect of the polymer and improves the stability of the ceramic slurry. The efficient environment-friendly ceramic debonder provided by the invention has better biodegradability and is more environment-friendly by introducing the natural extract monomer. Meanwhile, the content of petroleum products in the ceramic debonder of the invention is reduced, and the dependence on petroleum resources is reduced. The invention has simple reaction synthesis process, convenient operation and easy realization of industrial production.
Detailed Description
The claimed solution will now be described in further detail with reference to specific embodiments.
Example one
The efficient environment-friendly ceramic dispergator in the embodiment comprises the following raw materials:
aconitic acid (monomer A) 22.7 g;
9.6g of potassium bisulfite (chain transfer agent);
1.2g of potassium persulfate (initiator);
methacrylic acid (monomer B) 67.4 g;
29.9g of 2-acrylamido-2-methylpropanesulfonic acid (monomer C);
280g of deionized water;
in this embodiment, the preparation method of the efficient environment-friendly ceramic debonder comprises the following steps:
s1, adding aconitic acid, potassium bisulfite and 180g of deionized water into a reaction kettle, heating to 60 ℃, and stirring to dissolve uniformly.
S2, respectively dissolving potassium persulfate in 20g of deionized water, hydrolyzing methacrylic acid in 40g of deionized water, dissolving 2-acrylamide-2-methylpropanesulfonic acid in 40g of deionized water, simultaneously dropwise adding the three solutions into a reaction kettle at a constant speed, controlling the dropwise adding time to be 1.5 hours, keeping the temperature at 60 ℃ during dropwise adding, and stirring at a constant temperature.
S3, after the dropwise addition is finished, keeping the temperature and continuously reacting for 3 hours; and after the reaction is finished, cooling the product to 40-50 ℃, adding a NaOH solution with the mass fraction of 30% to adjust the pH value to 7.2, and obtaining the efficient environment-friendly ceramic debonder.
Example two
38.6g of hydroxymethyl chitosan (monomer A);
2g of sodium sulfite (chain transfer agent);
1.2g of potassium persulfate (initiator);
98.9g of maleic anhydride (monomer B);
sodium methallyl sulfonate (monomer C) 22.5 g;
240g of deionized water;
in this embodiment, the preparation method of the efficient environment-friendly ceramic debonder comprises the following steps:
s1, adding hydroxymethyl chitosan, sodium sulfite and 140g of deionized water into a reaction kettle, heating to 80 ℃, and stirring to dissolve uniformly.
S2, respectively dissolving potassium persulfate in 20g of deionized water, dissolving maleic anhydride in 40g of deionized water, dissolving sodium methallyl sulfonate in 40g of deionized water, simultaneously dropwise adding the three solutions into the reaction kettle at a constant speed, controlling the dropwise adding time to be 1 hour, keeping the temperature at 80 ℃ during dropwise adding, and stirring at a constant temperature.
S3, after the dropwise addition is finished, keeping the temperature and continuously reacting for 2 hours; and after the reaction is finished, cooling the product to 40-50 ℃, adding a NaOH solution with the mass fraction of 30% to adjust the pH value to 6.9, and obtaining the efficient environment-friendly ceramic debonder.
EXAMPLE III
25.5g of itaconic acid (monomer A);
sodium hydrogen sulfite (chain transfer agent) 1.0 g;
ammonium persulfate (initiator) 0.6 g;
56.7g of acrylic acid (monomer B);
sodium methallyl sulfonate (monomer C) 17.8 g;
300g of deionized water;
in this embodiment, the preparation method of the efficient environment-friendly ceramic debonder comprises the following steps:
s1, adding itaconic acid, sodium bisulfite and 200g deionized water into a reaction kettle, heating to 50 ℃, and stirring to dissolve uniformly.
S2, respectively dissolving ammonium persulfate in 20g of deionized water, dissolving acrylic acid in 40g of deionized water, dissolving sodium methallyl sulfonate in 40g of deionized water, simultaneously dropwise adding the three solutions into the reaction kettle at a constant speed for 1 hour, keeping the temperature at 50 ℃ during dropwise adding, and stirring at a constant temperature.
S3, after the dropwise addition is finished, keeping the temperature and continuously reacting for 2 hours; and after the reaction is finished, cooling the product to 40-50 ℃, adding a NaOH solution with the mass fraction of 30% to adjust the pH value to 7.1, and thus obtaining the efficient environment-friendly ceramic dispergator.
Example four
35.8g of ferulic acid (monomer A);
9.6g of potassium hypophosphite (chain transfer agent);
6.0g of sodium persulfate (initiator);
acrylic acid (monomer B) 64.3g g;
sodium allylsulfonate (monomer C) 17.8 g;
19.9g of deionized water;
in this embodiment, the preparation method of the efficient environment-friendly ceramic debonder comprises the following steps:
s1, adding ferulic acid, potassium hypophosphite and 180g of deionized water into the reaction kettle, heating to 70 ℃, and stirring to dissolve uniformly.
S2, respectively dissolving sodium persulfate in 20g of deionized water, dissolving acrylic acid in 40g of deionized water, dissolving sodium allylsulfonate in 40g of deionized water, simultaneously dropwise adding the three solutions into the reaction kettle at a constant speed, controlling the dropwise adding time to be 1.5 hours, keeping the temperature at 70 ℃ during dropwise adding, and stirring at a constant temperature.
S3, after the dropwise addition is finished, keeping the temperature and continuously reacting for 3 hours; and after the reaction is finished, cooling the product to 40-50 ℃, adding a NaOH solution with the mass fraction of 30% to adjust the pH value to 7.0, and obtaining the efficient environment-friendly ceramic debonder.
EXAMPLE five
21.4g of glutamic acid (monomer A);
6.0g of potassium hypophosphite (chain transfer agent);
sodium persulfate (initiator) 1.0 g;
67.5g of maleic anhydride (monomer B);
11.1g of 2-acrylamido-2-methylpropanesulfonic acid (monomer C);
300g of deionized water;
in this embodiment, the preparation method of the efficient environment-friendly ceramic debonder comprises the following steps:
s1, adding 21.4g of glutamic acid, 6.0g of potassium hypophosphite and 200g of deionized water into the reaction kettle, heating to 70 ℃, and stirring to dissolve uniformly.
S2, dissolving 1.0g of sodium persulfate in 20g of deionized water, dissolving 67.5g of maleic anhydride in 40g of deionized water, dissolving 11.1g of 2-acrylamide-2-methylpropanesulfonic acid in 40g of deionized water, simultaneously dropwise adding the three solutions into a reaction kettle at a constant speed, controlling the dropwise adding time to be 0.5 hour, keeping the temperature at 70 ℃ during dropwise adding, and stirring at a constant temperature.
S3, after the dropwise addition is finished, keeping the temperature and continuously reacting for 1 hour; and after the reaction is finished, cooling the product to 40-50 ℃, adding a NaOH solution with the mass fraction of 30% to adjust the pH value to 7.2, and obtaining the efficient environment-friendly ceramic debonder.
Now, the performance of the ceramic debonders prepared in examples 1 to 5 and the ceramic debonders commercially available in comparison groups 1 to 2 were tested, wherein the comparison group 1 was a commercially available ceramic debonder Acumer-9300 provided by Rohm and Haas company, USA; the control group 2 was a commercially available ceramic debonder Pc-67, supplied by German Sema chemical company.
The test method is as follows: adding the ceramic dispergator solid/dry blank into the blank and water according to the proportion of 0.3wt%, and grinding for 7 min. The viscosity of the slurry is represented by the flowing-out time, and the thixotropy of the slurry is represented by the thickening degree. The outflow time is the time for the slurry after ball milling to flow out of the coating 4 cups after standing for 30s, and the thickening degree is the ratio of the time for the slurry after ball milling to flow out of the coating 4 cups after standing for 30min to the time for the slurry after ball milling to flow out of the coating 4 cups after standing for 30 s. The test results are given in the following table:
Figure DEST_PATH_IMAGE002
the above-described embodiments are merely preferred embodiments of the present invention, which is not intended to limit the present invention in any way. Those skilled in the art can make many changes and modifications to the disclosed embodiments, or modify equivalent embodiments to practice the disclosed embodiments, without departing from the scope of the disclosed embodiments. Therefore, equivalent variations made according to the idea of the present invention should be covered within the protection scope of the present invention without departing from the contents of the technical solution of the present invention.

Claims (9)

1. The efficient environment-friendly ceramic debonder is characterized by comprising a monomer A, a monomer B, a monomer C, an initiator, a chain transfer agent, an acid-base regulator and deionized water; wherein the monomer A is a natural extract monomer containing carboxylic acid or amino functional groups; the monomer B is a mixture of one or more of acrylic acid, methacrylic acid and maleic anhydride mixed in any proportion; the monomer C is one or a mixture of sodium allylsulfonate, sodium methallyl sulfonate and 2-acrylamide-2-methylpropanesulfonic acid mixed in any proportion.
2. The efficient environment-friendly ceramic debonder of claim 1, wherein: the monomer A is one or a mixture of more of carboxymethyl chitosan, glutamic acid, ferulic acid, itaconic acid and aconitic acid mixed in any proportion.
3. The efficient environment-friendly ceramic debonder of claim 1, wherein: the molar ratio of the monomer A to the monomer B is 1: 12-1: 2, and the molar ratio of the monomer C to the monomer B is 1: 8-1: 2.
4. The efficient environment-friendly ceramic debonder of claim 1, wherein: the chain transfer agent is a mixture of one or more of sodium bisulfite, potassium bisulfite, sodium hypophosphite and potassium hypophosphite mixed in any proportion; the chain transfer agent is 1-9% of the total mass of the monomer A, the monomer B and the monomer C.
5. The efficient environment-friendly ceramic debonder of claim 1, wherein: the deionized water accounts for 60-75% of the total mass of the deionized water and the monomer A, the monomer B and the monomer C.
6. The efficient environment-friendly ceramic dispergator as claimed in claim 1, wherein: the initiator is a mixture of one or more of potassium persulfate, sodium persulfate and ammonium persulfate which are mixed in any proportion; the initiator is 0.2-5% of the total mass of the monomer A, the monomer B and the monomer C.
7. The efficient environment-friendly ceramic debonder of claim 1, wherein: the acid-base regulator is NaOH solution.
8. The preparation method of the efficient environment-friendly ceramic debonder of any one of claims 1 to 7, comprising the following steps:
s1, adding a monomer A, a chain transfer agent and part of deionized water into a reaction kettle, heating to 50-80 ℃, and uniformly stirring and dissolving;
s2, respectively dissolving an initiator, a monomer B and a monomer C in partial deionized water, and simultaneously dropwise adding the mixture into the reaction kettle at a constant speed for 0.5-1.5 hours, keeping the temperature at 50-80 ℃ during dropwise adding, and stirring at a constant temperature;
s3, after the dropwise adding is finished, keeping the temperature and continuously reacting for 1-3 hours; after the reaction is finished, cooling the product to 40-50 ℃, adding 30% NaOH solution by mass fraction, and adjusting the pH to 7-8 to obtain a finished product.
9. The preparation method of the efficient environment-friendly ceramic debonder of claim 8, characterized in that: in the step S2, the mass percent of the initiator solution is 1.0-28.6%, the mass percent of the monomer B solution is 38.3-72.7%, and the mass percent of the monomer C solution is 17.9-66.1%.
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CN109678528A (en) * 2019-01-23 2019-04-26 佛山市山有海科技有限公司 A kind of ceramics degumming agent and its preparation method and application
CN111303341A (en) * 2020-04-23 2020-06-19 肇庆市欧陶新型材料有限公司 Amino acrylate type polymer ceramic debonder and preparation method thereof

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CN109678528A (en) * 2019-01-23 2019-04-26 佛山市山有海科技有限公司 A kind of ceramics degumming agent and its preparation method and application
CN111303341A (en) * 2020-04-23 2020-06-19 肇庆市欧陶新型材料有限公司 Amino acrylate type polymer ceramic debonder and preparation method thereof

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Application publication date: 20220524