CN115975104A - Acrylate comb dispersant and preparation method thereof - Google Patents
Acrylate comb dispersant and preparation method thereof Download PDFInfo
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- CN115975104A CN115975104A CN202211432942.8A CN202211432942A CN115975104A CN 115975104 A CN115975104 A CN 115975104A CN 202211432942 A CN202211432942 A CN 202211432942A CN 115975104 A CN115975104 A CN 115975104A
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention provides an acrylate comb dispersant and a preparation method thereof, wherein the comb dispersant adopts a solution polymerization method, a mixed monomer solution and an initiator solution are respectively added into a reaction kettle in a dropwise manner for reaction, and the molecular weight is adjusted by a chain transfer agent; the dispersing agent prepared by the invention is mainly applied to lithium battery anode slurry, and is beneficial to improving the solid content of the slurry, reducing the viscosity of the slurry and improving the stability of the slurry. In addition, the preparation method is simple in preparation process, mild in reaction condition and environment-friendly, and can improve the production efficiency in the homogenizing and coating stages in the actual production and application process of the battery cell.
Description
Technical Field
The invention relates to the field of secondary battery materials, in particular to a dispersing agent and a preparation method thereof.
Background
Batteries are key materials in new energy automobiles and renewable energy storage projects. In recent years, the demand for batteries in the field of energy storage and new energy electric vehicles has increased sharply. For battery manufacturers, it is an unfortunate problem to increase the productivity of batteries. The improvement of the productivity of the battery can be realized by increasing the speed of each production process, wherein the coating process is a key step of the speed increase. The slurry with high solid content used in coating has high viscosity and poor fluidity, and particles and scratches often appear on a base material in the coating process, so that the output speed of the process is greatly influenced.
Therefore, the invention is especially provided for improving the slurry characteristics and increasing the coating speed of the high-solid-content slurry.
Disclosure of Invention
The invention aims to provide an acrylate comb dispersant with low cost, excellent performance, simple process and environmental friendliness and a preparation method thereof.
The specific technical scheme for realizing the purpose of the invention is as follows:
an acrylate comb dispersant is polymerized from the following components in percentage by weight:
1 to 15 percent of monomer A
1 to 30 percent of monomer B
1 to 15 percent of monomer C
1 to 30 percent of monomer D
0.1 to 3 percent of chain transfer agent
0.1 to 3 percent of initiator
35 to 70 percent of solvent
The monomer A is selected from one or more of methyl acrylate, ethyl acrylate, butyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, isobornyl acrylate, benzyl acrylate, trifluoroethyl acrylate, butyl fluoropropyl acrylate, cyclotrimethylolpropane formal acrylate, 3-ethyl-3-epoxypropyl acrylate, ethoxyethoxyethyl acrylate, tris (2-hydroxyethyl) isocyanurate triacrylate, dipentaerythritol tetraacrylate, 1, 6-ethylene glycol diacrylate, tripropylene glycol diacrylate, dipentaerythritol hexaacrylate, isooctyl acrylate and heptadecyl acrylate;
the monomer B is selected from one or more of methyl methacrylate, sec-butyl methacrylate, ethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, isooctyl methacrylate, dodecyl methacrylate, isobornyl methacrylate, cocooleate methacrylate, octadecyl methacrylate, tricyclodecanol methacrylate, dimethylaminopropyl methacrylate, propylene glycol dimethacrylate, l, 4-butanediol dimethacrylate, methoxypolyethylene glycol methyl methacrylate, allyl methacrylate, ethylene glycol dimethacrylate, polypropylene glycol dimethacrylate, trimethylolpropane trimethacrylate, tristyrylphenol polyoxyethylene ether methacrylate, dimethylaminoethyl methacrylate and glycidyl methacrylate;
the monomer C is selected from one or more of acrylic acid, methacrylic acid, maleic acid, fumaric acid, ethylene sulfonate, styrene sulfonate and ethylene phosphate;
the monomer D is selected from one or more of acrylamide, methacrylamide, N-dimethylacrylamide, hydroxymethyl acrylamide, hydroxypropyl acrylamide, vinyl imidazole, vinyl caprolactam, N-ethyl acrylamide, N-hydroxyethyl acrylamide, beta-aminoethyl acrylic acid hydrochloride, beta-aminoethyl acrylic acid sulfate, N-dimethylaminoethyl acrylate, N-dimethylaminoethyl acrylic acid hydrochloride, N-dimethylaminoethyl acrylic acid sulfate, beta-aminoethyl methacrylic acid hydrochloride, beta-aminoethyl methacrylic acid sulfate, N-dimethylaminoethyl methacrylic acid hydrochloride, N-vinylpyridine salt, N-vinylpyrrolidone and N-acryloylmorpholine;
the chain transfer agent is selected from one or more of 2-mercaptoethanol, n-butyl mercaptan, tert-butyl mercaptan, dodecyl mercaptan, sodium methallyl sulfonate, isopropanol, carbon tetrachloride and iodoform;
the initiator is selected from one or more of cumene hydroperoxide, tert-butyl hydroperoxide, azobisisobutyronitrile, azobisisoheptonitrile and benzoyl;
the solvent is selected from N-methyl pyrrolidone.
The weight average molecular weight of the acrylate comb dispersant is 5000-500000.
A method for preparing an acrylate comb dispersant, the method comprising the steps of:
a. preparing a mixed monomer solution: adding the monomer A, the monomer B, the monomer C, the monomer D, a chain transfer agent and a solvent with the mass ratio of 10-30% into a mixed monomer kettle, and mixing by using a stirrer at the stirring speed of 100-500 revolutions per minute for 5-30min to obtain a mixed monomer solution;
b. preparing an initiator solution: dissolving an initiator in a solvent with the mass ratio of 5-30% to obtain an initiator solution;
c. adding the rest solvent into a reaction kettle, mechanically stirring at the rotating speed of 10-400 rpm, heating to 50-90 ℃, adding 1-20% of mixed monomer solution and 1-20% of initiator solution, preserving heat for 0.5-2h, dropwise adding the rest initiator solution and the mixed monomer solution, completing dripping for 2-10h, continuously preserving heat for 1-4h, cooling and filtering to obtain the acrylate comb-shaped dispersant.
The acrylate comb-shaped matter dispersant is mainly applied to the lithium battery anode material, and can play a role in improving the solid content of the slurry, reducing the viscosity of the slurry and enhancing the stability of the slurry under the condition of small addition amount. For lithium battery manufacturers, the product not only greatly improves the efficiency of lithium battery anode homogenate and pole piece coating, but also plays a role in cost reduction and efficiency improvement. In addition, the invention has simple preparation process, mild reaction condition and environmental protection.
Detailed Description
The present invention is described in detail below with reference to examples, and the description in this section is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
Example 1
a. Preparing a mixed monomer solution: 1g of methyl acrylate, 29g of isobutyl methacrylate, 2g of acrylic acid, 27g of methylolacrylamide, 0.3g of 2-mercaptoethanol and 4.4g of N-methylpyrrolidone were put into a monomer mixture kettle and mixed by a stirrer at a stirring speed of 130 rpm for 29 minutes to obtain a monomer mixture solution.
b. Preparing an initiator solution: 0.7g of benzoyl was dissolved in 10.8g of N-methylpyrrolidone.
c. Adding the rest 24.8g of N-methyl pyrrolidone into a reaction kettle, mechanically stirring at the rotating speed of 40 revolutions per minute, heating to 55 ℃, adding 3.4g of mixed monomer solution and 0.6g of initiator solution, keeping the temperature for 1.5h, dropwise adding the rest initiator solution and the mixed monomer solution for 9h, keeping the temperature for reaction for 1.2h, and cooling to obtain the acrylate comb-shaped substance dispersing agent.
Example 2
a. Preparing a mixed monomer solution: 4g of butyl acrylate, 22g of tert-butyl methacrylate, 5g of methacrylic acid, 22g of methacrylamide, 0.4g of 2-mercaptoethanol and 5.9g of N-methylpyrrolidone were added to a monomer mixture kettle and mixed by a stirrer at a stirring speed of 170 rpm for 27 minutes to obtain a monomer mixture solution.
b. Preparing an initiator solution: 0.9g of benzoyl was dissolved in 11.4g of N-methylpyrrolidone.
c. Adding the rest 28.4g of solvent into a reaction kettle, mechanically stirring at the rotation speed of 160 revolutions per minute, heating to 53 ℃, adding 3.5g of mixed monomer solution and 0.7g of initiator solution, keeping the temperature for 1.8h, dropwise adding the initiator solution and the mixed monomer solution for 3h, keeping the temperature for reaction for 3h, and cooling to obtain the acrylate comb-shaped object dispersing agent.
Example 3
a. Preparing a mixed monomer solution: 5g of ethyl acrylate, 21g of lauryl methacrylate, 6g of maleic acid, 19g of vinylcaprolactam, 0.6g of dodecylmercaptan and 6.2g of N-methylpyrrolidone were put into a monomer mixture kettle and mixed by a stirrer at a stirring speed of 310 rpm for 10 minutes to obtain a monomer mixture solution.
b. Preparing an initiator solution: 1g of azobisisoheptonitrile was dissolved in 8.5g of N-methylpyrrolidone.
c. Adding the rest 32.7g of solvent into a reaction kettle, mechanically stirring at the rotating speed of 260 revolutions per minute, heating to 74 ℃, adding 4.4g of mixed monomer solution and 0.8g of initiator solution, keeping the temperature for 1.7h, dropwise adding the initiator solution and the mixed monomer solution for 2h, keeping the temperature for reaction for 3.4h, and cooling to obtain the acrylate comb-shaped object dispersing agent.
Example 4
a. Preparing a mixed monomer solution: 7g of isobornyl acrylate, 20g of octadecyl methacrylate, 8g of fumaric acid, 17g of β -aminoethacrylic acid hydrochloride, 1g of dodecylmercaptan and 7.3g of N-methylpyrrolidone were put into a monomer mixture kettle and mixed by a mixer at a mixing speed of 490 rpm for 7 min to obtain a mixed monomer solution.
b. Preparing an initiator solution: 1.3g of azobisisoheptonitrile was dissolved in 5.9g of N-methylpyrrolidone.
c. Adding the rest 32.5g of solvent into a reaction kettle, mechanically stirring at the rotation speed of 380 r/min, heating to 85 ℃, adding 12.2g of mixed monomer solution and 1g of initiator solution, keeping the temperature for 1.9h, dropwise adding the initiator solution and the mixed monomer solution for 5h, keeping the temperature for reaction for 1.9h, and cooling to obtain the acrylate comb-shaped object dispersing agent.
Example 5
a. Preparing a mixed monomer solution: adding 9g of isooctyl acrylate, 16g of methoxypolyethylene glycol methyl methacrylate, 6g of methacrylic acid, 3g of acrylic acid, 12g of hydroxypropyl acrylamide, 1.2g of sodium methallylsulfonate and 10.8g of N-methylpyrrolidone into a monomer mixing kettle, and mixing by using a stirrer at the stirring speed of 220 revolutions per minute for 21 min to obtain a monomer mixing solution.
b. Preparing an initiator solution: 1.6g of azobisisobutyronitrile were dissolved in 5.1g of N-methylpyrrolidone.
c. Adding the rest 35.3g of solvent into a reaction kettle, mechanically stirring at the rotation speed of 180 revolutions per minute, heating to 58 ℃, adding 9.5g of mixed monomer solution and 1g of initiator solution, keeping the temperature for 1.1h, dropwise adding the initiator solution and the mixed monomer solution for 6h, keeping the temperature for reaction for 1.8h, and cooling to obtain the acrylate comb-shaped object dispersing agent.
Example 6
a. Preparing a mixed monomer solution: adding 8g of heptadecyl acrylate, 3g of methyl acrylate, 15g of sec-butyl methacrylate, 10g of styrene sulfonate, 5g of acrylamide, 1g of 2-mercaptoethanol, 1.2g of sodium methallylsulfonate and 12.1g of N-methylpyrrolidone into a monomer mixing kettle, and mixing by using a stirrer at the stirring speed of 370 revolutions per minute for 9min to obtain a monomer mixing solution.
b. Preparing an initiator solution: 1.8g of azobisisobutyronitrile were dissolved in 4.4g of N-methylpyrrolidone.
c. Adding the residual 38.5g of solvent into a reaction kettle, mechanically stirring at the rotation speed of 290 revolutions per minute, heating to 78 ℃, adding 13.9g of mixed monomer solution and 1.1g of initiator solution, keeping the temperature for 1.3h, dropwise adding the initiator solution and the mixed monomer solution for 1h, keeping the temperature for reaction for 3.9h, and cooling to obtain the acrylate comb-shaped object dispersing agent.
Example 7
a. Preparing a mixed monomer solution: 12g of benzyl acrylate, 11g of glycidyl methacrylate, 13g of maleic acid, 3g of N-hydroxyethyl acrylamide, 2.3g of tert-butyl mercaptan and 14.2g of N-methylpyrrolidone were put into a monomer mixture kettle and mixed by a stirrer at a stirring speed of 430 rpm for 8 min to obtain a monomer mixture solution.
b. Preparing an initiator solution: 2g of cumene hydroperoxide was dissolved in 4.0g of N-methylpyrrolidone.
c. Adding the residual 38.5g of solvent into a reaction kettle, mechanically stirring at the rotation speed of 320 revolutions per minute, heating to 80 ℃, adding 15.4g of mixed monomer solution and 1.1g of initiator solution, keeping the temperature for 0.9h, dropwise adding the initiator solution and the mixed monomer solution for 7h, keeping the temperature for reaction for 1.7h, and cooling to obtain the acrylate polymer dispersing agent.
Example 8
a. Preparing a mixed monomer solution: 14g of hydroxypropyl acrylate, 9g of isobornyl methacrylate, 14g of methacrylic acid, 1g of N, N-dimethylaminoethyl acrylate sulfate, 2.9g of tert-butyl mercaptan and 16.4g of N-methylpyrrolidone were added to a monomer mixture kettle and mixed by a stirrer at a stirring speed of 260 rpm for 19 min to obtain a monomer mixture solution.
b. Preparing an initiator solution: 2.5g of cumene hydroperoxide was dissolved in 3.4g of N-methylpyrrolidone.
c. Adding the rest 36.8g of solvent into a reaction kettle, mechanically stirring at the rotation speed of 200 revolutions per minute, heating to 69 ℃, adding 11.1g of mixed monomer solution and 1.2g of initiator solution, keeping the temperature for 0.5h, dropwise adding the initiator solution and the mixed monomer solution for 8h, keeping the temperature for reaction for 1.6h, and cooling to obtain the acrylate comb-shaped object dispersing agent.
Preparing slurry:
1. comparative example:
the first step is as follows: preparing a binder glue solution, namely preparing a binder glue solution,
the second step is that: adding a binder glue solution, a conductive agent and N-methylpyrrolidone into a stirring tank, stirring and homogenizing by using a homogenizer until no particles exist, and stirring for 1 to 2 hours.
The third step: adding the anode material and the rest N-methyl pyrrolidone into a stirring tank. And stirring the homogenate by using a homogenizer until no particles exist, wherein the stirring time is 2 to 3 hours.
The fourth step: and after the homogenization is finished, cooling the slurry.
Examples 1 to 8
The first step is as follows: preparing a binder glue solution, namely preparing a binder glue solution,
the second step: adding a binder glue solution, a conductive agent, a dispersing agent (the dispersing agent prepared in the embodiments 1 to 8, the dosage of the dispersing agent is 0.2 percent of the mass ratio of the anode material) and N-methylpyrrolidone into a stirring tank, stirring and homogenizing by using a homogenizer until no particles exist, and stirring for 1 to 2 hours.
The third step: adding the anode material and the residual N-methyl pyrrolidone into a stirring tank. And stirring the homogenate by using a homogenizer until no particles exist, wherein the stirring time is 2 to 3 hours.
The fourth step: and after the homogenization is finished, cooling the slurry.
And (3) testing results:
the results of the slurry test in Table 1 show that the blank slurry has a high viscosity and is not easy to coat. The dosage of the dispersant prepared in the embodiment 1-8 is 0.2% of the mass ratio of the anode material, so that the viscosity of the slurry can be obviously reduced, and the coating effect of the slurry is improved.
The present invention is illustrated in detail by the examples given above, but the present invention is not limited to the details given above, which means that the present invention is not limited to the details given above. The description is to be regarded as illustrative and explanatory only and should not be taken as limiting the scope of the invention in any way.
Claims (6)
1. The acrylate comb dispersant is characterized by being polymerized from the following components in percentage by weight:
1 to 15 percent of monomer A
1 to 30 percent of monomer B
1 to 15 percent of monomer C
1 to 30 percent of monomer D
0.1 to 3 percent of chain transfer agent
0.1 to 3 percent of initiator
35 to 70 percent of solvent
The monomer A is selected from one or more of methyl acrylate, ethyl acrylate, butyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, isobornyl acrylate, benzyl acrylate, trifluoroethyl acrylate, butyl fluoropropyl acrylate, cyclotrimethylolpropane formal acrylate, 3-ethyl-3-epoxypropyl acrylate, ethoxyethoxyethyl acrylate, tris (2-hydroxyethyl) isocyanurate triacrylate, dipentaerythritol tetraacrylate, 1, 6-ethylene glycol diacrylate, tripropylene glycol diacrylate, dipentaerythritol hexaacrylate, isooctyl acrylate and heptadecyl acrylate;
the monomer B is selected from one or more of methyl methacrylate, sec-butyl methacrylate, ethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, isooctyl methacrylate, dodecyl methacrylate, isobornyl methacrylate, cocooleate methacrylate, octadecyl methacrylate, tricyclodecanol methacrylate, dimethylaminopropyl methacrylate, propylene glycol dimethacrylate, l, 4-butanediol dimethacrylate, methoxypolyethylene glycol methyl methacrylate, allyl methacrylate, ethylene glycol dimethacrylate, polypropylene glycol dimethacrylate, trimethylolpropane trimethacrylate, tristyrylphenol polyoxyethylene ether methacrylate, dimethylaminoethyl methacrylate and glycidyl methacrylate;
the monomer C is selected from one or more of acrylic acid, methacrylic acid, maleic acid, fumaric acid, ethylene sulfonate, styrene sulfonate and ethylene phosphate;
the monomer D is selected from one or more of acrylamide, methacrylamide, N-dimethylacrylamide, hydroxymethyl acrylamide, hydroxypropyl acrylamide, vinyl imidazole, vinyl caprolactam, N-ethyl acrylamide, N-hydroxyethyl acrylamide, beta-aminoethyl acrylic acid hydrochloride, beta-aminoethyl acrylic acid sulfate, N-dimethylaminoethyl acrylate, N-dimethylaminoethyl acrylic acid hydrochloride, N-dimethylaminoethyl acrylic acid sulfate, beta-aminoethyl methacrylic acid hydrochloride, beta-aminoethyl methacrylic acid sulfate, N-dimethylaminoethyl methacrylic acid hydrochloride, N-vinylpyridine salt, N-vinylpyrrolidone and N-acryloylmorpholine;
the chain transfer agent is selected from one or more of 2-mercaptoethanol, n-butyl mercaptan, tert-butyl mercaptan, dodecyl mercaptan, sodium methallyl sulfonate, isopropanol, carbon tetrachloride and iodoform;
the initiator is selected from one or more of cumene hydroperoxide, tert-butyl hydroperoxide, azobisisobutyronitrile, azobisisoheptonitrile and benzoyl;
the solvent is selected from N-methyl pyrrolidone.
2. The acrylate comb dispersant of claim 1, wherein said acrylate comb dispersant has a weight average molecular weight of 5000-500000.
3. A method for preparing an acrylate comb dispersant, the method comprising the steps of:
a. preparing a mixed monomer solution: adding the monomer A, the monomer B, the monomer C, the monomer D, a chain transfer agent and a solvent with the mass ratio of 10-30% into a mixed monomer kettle, and mixing by using a stirrer at the stirring speed of 100-500 revolutions per minute for 5-30min to obtain a mixed monomer solution;
b. preparing an initiator solution: dissolving an initiator in a solvent with the mass ratio of 5-30% to obtain an initiator solution;
c. adding the rest solvent into a reaction kettle, mechanically stirring at the rotating speed of 10-400 rpm, heating to 50-90 ℃, adding 1-20% of mixed monomer solution and 1-20% of initiator solution, preserving heat for 0.5-2h, dropwise adding the rest initiator solution and the mixed monomer solution, continuously preserving heat for 1-4h after 2-10h of dripping, cooling and filtering to obtain the acrylate comb-shaped substance dispersing agent;
the acrylate comb dispersant is polymerized from the following components in percentage by weight:
1 to 15 percent of monomer A
1 to 30 percent of monomer B
1 to 15 percent of monomer C
1 to 30 percent of monomer D
0.1 to 3 percent of chain transfer agent
0.1 to 3 percent of initiator
35 to 70 percent of solvent
The monomer A is selected from one or more of methyl acrylate, ethyl acrylate, butyl acrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, isobornyl acrylate, benzyl acrylate, trifluoroethyl acrylate, butyl fluoropropyl acrylate, cyclotrimethylolpropane formal acrylate, 3-ethyl-3-epoxypropyl acrylate, ethoxyethoxyethyl acrylate, tris (2-hydroxyethyl) isocyanurate triacrylate, dipentaerythritol tetraacrylate, 1, 6-ethylene glycol diacrylate, tripropylene glycol diacrylate, dipentaerythritol hexaacrylate, isooctyl acrylate and heptadecyl acrylate;
the monomer B is selected from one or more of methyl methacrylate, sec-butyl methacrylate, ethyl methacrylate, n-butyl methacrylate, isobutyl methacrylate, tert-butyl methacrylate, isooctyl methacrylate, dodecyl methacrylate, isobornyl methacrylate, cocooleate methacrylate, octadecyl methacrylate, tricyclodecanol methacrylate, dimethylaminopropyl methacrylate, propylene glycol dimethacrylate, l, 4-butanediol dimethacrylate, methoxypolyethylene glycol methyl methacrylate, allyl methacrylate, ethylene glycol dimethacrylate, polypropylene glycol dimethacrylate, trimethylolpropane trimethacrylate, tristyrylphenol polyoxyethylene ether methacrylate, dimethylaminoethyl methacrylate and glycidyl methacrylate;
the monomer C is selected from one or more of acrylic acid, methacrylic acid, maleic acid, fumaric acid, ethylene sulfonate, styrene sulfonate and ethylene phosphate;
the monomer D is one or more selected from acrylamide, methacrylamide, N-dimethylacrylamide, hydroxymethyl acrylamide, hydroxypropyl acrylamide, vinyl imidazole, vinyl caprolactam, N-ethyl acrylamide, N-hydroxyethyl acrylamide, beta-aminoethyl acrylic acid hydrochloride, beta-aminoethyl acrylic acid sulfate, N-dimethylaminoethyl acrylate, N-dimethylaminoethyl acrylic acid hydrochloride, N-dimethylaminoethyl acrylic acid sulfate, beta-aminoethyl methacrylic acid hydrochloride, beta-aminoethyl methacrylic acid sulfate, N-dimethylaminoethyl methacrylic acid hydrochloride, N-vinylpyridine salt, N-vinylpyrrolidone and N-acryloylmorpholine.
4. The preparation method of claim 3, wherein the initiator is one or more selected from cumene hydroperoxide, tert-butyl hydroperoxide, azobisisobutyronitrile, azobisisoheptonitrile and benzoyl.
5. The preparation method of claim 3, wherein the chain transfer agent is one or more selected from the group consisting of 2-mercaptoethanol, n-butylmercaptan, t-butylmercaptan, dodecylmercaptan, sodium methallylsulfonate, isopropanol, carbon tetrachloride and iodoform.
6. The process according to claim 3, wherein the solvent is N-methylpyrrolidone.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2018160450A (en) * | 2017-02-10 | 2018-10-11 | 松本油脂製薬株式会社 | Dispersant composition for power storage device slurry, and utilization thereof |
| CN111154031A (en) * | 2020-01-13 | 2020-05-15 | 传美讯电子科技（珠海）有限公司 | Acrylate comb dispersant, preparation method and application thereof, white ink-jet color paste and preparation method thereof |
| JP2022028628A (en) * | 2020-08-03 | 2022-02-16 | 三洋化成工業株式会社 | Dispersant for carbon black and carbon black dispersion |
| JP2022063854A (en) * | 2020-10-12 | 2022-04-22 | 花王株式会社 | Dispersant composition for electricity storage device electrodes |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018160450A (en) * | 2017-02-10 | 2018-10-11 | 松本油脂製薬株式会社 | Dispersant composition for power storage device slurry, and utilization thereof |
| CN111154031A (en) * | 2020-01-13 | 2020-05-15 | 传美讯电子科技（珠海）有限公司 | Acrylate comb dispersant, preparation method and application thereof, white ink-jet color paste and preparation method thereof |
| JP2022028628A (en) * | 2020-08-03 | 2022-02-16 | 三洋化成工業株式会社 | Dispersant for carbon black and carbon black dispersion |
| JP2022063854A (en) * | 2020-10-12 | 2022-04-22 | 花王株式会社 | Dispersant composition for electricity storage device electrodes |
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