CN113845964A - Preparation method of electrorheological fluid - Google Patents
Preparation method of electrorheological fluid Download PDFInfo
- Publication number
- CN113845964A CN113845964A CN202110905301.9A CN202110905301A CN113845964A CN 113845964 A CN113845964 A CN 113845964A CN 202110905301 A CN202110905301 A CN 202110905301A CN 113845964 A CN113845964 A CN 113845964A
- Authority
- CN
- China
- Prior art keywords
- electrorheological fluid
- hours
- acetate
- barium
- mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/001—Electrorheological fluids; smart fluids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2211/00—Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2211/08—Halogenated waxes
- C10M2211/083—Halogenated waxes used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/102—Ureas; Semicarbazides; Allophanates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
- C10M2227/04—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes
- C10M2227/045—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having a silicon-to-carbon bond, e.g. organo-silanes used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/0405—Siloxanes with specific structure used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/044—Siloxanes with specific structure containing silicon-to-hydrogen bonds
- C10M2229/0445—Siloxanes with specific structure containing silicon-to-hydrogen bonds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/04—Siloxanes with specific structure
- C10M2229/045—Siloxanes with specific structure containing silicon-to-hydroxyl bonds
- C10M2229/0455—Siloxanes with specific structure containing silicon-to-hydroxyl bonds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/055—Particles related characteristics
- C10N2020/06—Particles of special shape or size
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/04—Detergent property or dispersant property
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/60—Electro rheological properties
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/16—Dielectric; Insulating oil or insulators
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention adopts the polystyrene microsphere as the template to prepare the barium strontium titanate hollow microsphere as the dispersed phase of the electrorheological fluid, and the prepared electrorheological fluid has good dispersibility and non-settling property by matching with the polar molecular dispersing agent, and the viscosity of the prepared electrorheological fluid is sharply increased under the action of an electric field and is changed from a liquid state to a solid state. The preparation process is simple, the raw materials are cheap, and the method is suitable for mass production.
Description
Technical Field
The invention belongs to the field of intelligent materials, and relates to a preparation method of electrorheological fluid.
Background
The electrorheological fluid is a suspension system formed by mixing micron or nanometer level high dielectric solid particles and insulating oil, and is in the property of Newtonian fluid under normal conditions; however, under the action of the electric field, the high dielectric particles will be polarized under the electric field to interact, and the interaction between the particles is gradually enhanced along with the increase of the electric field to form an ordered arrangement to form a chain structure. Under the condition of no electric field, the particles can be randomly and uniformly dispersed in the liquid, the particles begin to attract each other due to polarization in the process that the electric field begins to be gradually enhanced, chain-shaped arrangement is gradually formed, and at the moment, the viscosity of the electrorheological liquid begins to be increased and gradually loses the fluidity. Along with the increase of the electric field intensity, the interaction among the particles is further enhanced to form a columnar structure, at the moment, the viscosity of the electrorheological fluid is rapidly increased to form solidification, and the electrorheological fluid has the mechanical properties of solid such as yield strength and the like. At present, electrorheological fluid prepared by a Ti-O system with high dielectric constant and attached with polar molecules becomes a mainstream of research, and the actual application of the electrorheological fluid is still influenced by the defects of easy sedimentation, short service life, easy environmental influence and the like of inorganic metal oxide due to the self limitation of the inorganic metal oxide.
Disclosure of Invention
The invention aims to provide a preparation method of electrorheological fluid, which is characterized by comprising the following steps:
(1) dissolving n-butyl titanate in ethanol, adding 1-2 g/L polystyrene microspheres at the concentration of 0.5-1 mol/L, stirring and dispersing under an ultrasonic environment, dissolving barium acetate and strontium acetate in glacial acetic acid at 70-85 ℃, slowly adding a glacial acetic acid solution of barium acetate and strontium acetate into an ethanol dispersion liquid to form a jelly, adjusting the pH value to be 3-4.5 by using acetic acid, adding ethylene glycol monomethyl ether, and aging at room temperature for 36-72 hours to obtain a jelly, wherein the concentration of the polystyrene microspheres is 1-2 g/L, the concentration of the polystyrene microspheres is 0.2-0.5 mol/L, and the molar weight sum of the barium acetate and the strontium acetate is the same as that of the n-butyl titanate;
(2) drying, then removing viscosity for 3-4 hours at 300 ℃, heating to 800-1000 ℃, and calcining for 3-4 hours to obtain barium strontium titanate hollow microspheres;
(3) and adding 30-40 parts by mass of barium strontium titanate hollow microspheres into 100 parts by mass of insulating base liquid, adding 0.5-1 part by mass of polar molecular additive, and dispersing the mixed liquid in a homogenizer for 6-10 hours to obtain the electrorheological fluid.
The insulating base fluid comprises silicone oil, transformer oil, mineral oil or a mixture thereof.
The particle size of the polystyrene microsphere is 2-4 microns.
The polar molecular additive comprises one of urea, triethanolamine and octyl phenol polyoxyethylene ether.
The invention adopts the polystyrene microsphere as the template to prepare the barium strontium titanate hollow microsphere which is used as the dispersed phase of the electrorheological fluid and is matched with the polar molecular dispersing agent, the prepared electrorheological fluid has good dispersibility and non-settling property, and the viscosity of the prepared electrorheological fluid is sharply increased under the action of an electric field and is changed from a liquid state to a solid state. The preparation process is simple, the raw materials are cheap, and the method is suitable for mass production.
Detailed Description
Example 1:
(1) dissolving n-butyl titanate in ethanol, wherein the concentration of the n-butyl titanate is 0.5mol/L, adding 1g/L of polystyrene microspheres with the particle size of 2 microns, stirring and dispersing under an ultrasonic environment, dissolving barium acetate and strontium acetate in glacial acetic acid with the molar ratio of 5: 5 at 70 ℃, wherein the sum of the molar weights of the barium acetate and the strontium acetate is the same as the molar weight of the n-butyl titanate, slowly adding the glacial acetic acid solution of the barium acetate and the strontium acetate into the ethanol dispersion to form a jelly, adjusting the pH value to be 3-4.5 by using acetic acid, adding ethylene glycol monomethyl ether, and aging at room temperature for 36 hours to obtain a gel;
(2) drying, then removing viscosity for 3 hours at 300 ℃, heating to 900 ℃, and calcining for 4 hours to obtain barium strontium titanate hollow microspheres;
(3)30 parts by mass of hollow barium strontium titanate powder is added into 100 parts by mass of transformer oil, 0.5 part by mass of triethanolamine is added, and the mixed solution is placed into a homogenizer to be dispersed for 6 hours, so that the electrorheological fluid is obtained. The electrorheological fluid has good non-settling property, and does not settle obviously after being sealed for 30 days at normal temperature. Shear strength 129KPa at 3 kV.
Example 2:
(1) dissolving n-butyl titanate in ethanol, adding polystyrene microspheres with the particle size of 4 microns at the concentration of 1mol/L, stirring and dispersing under an ultrasonic environment, dissolving barium acetate and strontium acetate in glacial acetic acid with the molar ratio of 6: 4 at 85 ℃, wherein the sum of the molar weights of the barium acetate and the strontium acetate is the same as the molar weight of the n-butyl titanate, slowly adding the glacial acetic acid solution of the barium acetate and the strontium acetate into the ethanol dispersion to form a jelly, adjusting the pH value to be 3-4.5 by using acetic acid, adding ethylene glycol monomethyl ether, and aging at room temperature for 36 hours to obtain a gel;
(2) drying, then removing viscosity for 3 hours at 300 ℃, heating to 800 ℃, and calcining for 4 hours to obtain barium strontium titanate hollow microspheres;
(3)40 parts by mass of hollow barium strontium titanate powder is added into 100 parts by mass of mineral oil, 0.8 part by mass of urea is added, and the mixed solution is placed into a homogenizer to be dispersed for 8 hours, so that the electrorheological fluid is obtained. The electrorheological fluid has good non-settling property, and does not settle obviously after being sealed for 30 days at normal temperature. Shear strength 146KPa at 3 kV.
Example 3:
(1) dissolving n-butyl titanate in ethanol, wherein the concentration of the n-butyl titanate is 0.8mol/L, adding 1g/L of polystyrene microspheres with the particle size of 3 microns, stirring and dispersing under an ultrasonic environment, dissolving barium acetate and strontium acetate in glacial acetic acid with the temperature of 80 ℃ according to the molar ratio of 4: 6, slowly adding the glacial acetic acid solution of the barium acetate and the strontium acetate into the ethanol dispersion liquid to form a jelly, adjusting the pH value to be 3-4.5 by using acetic acid, adding ethylene glycol monomethyl ether, and aging at room temperature for 72 hours to obtain a gel;
(2) drying, then removing viscosity for 3 hours at 300 ℃, heating to 800 ℃, and calcining for 4 hours to obtain barium strontium titanate hollow microspheres;
(3) adding 50 parts by mass of hollow barium strontium titanate powder into 100 parts by mass of silicone oil, adding 1 part by mass of octylphenol polyoxyethylene ether, and dispersing the mixed solution in a homogenizer for 10 hours to obtain the electrorheological fluid. The electrorheological fluid has good non-settling property, and does not settle obviously after being sealed for 30 days at normal temperature. Shear strength 146KPa at 3 kV.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (3)
1. The preparation method of the electrorheological fluid is characterized by comprising the following steps:
(1) dissolving n-butyl titanate in ethanol, adding 1-2 g/L polystyrene microspheres at the concentration of 0.5-1 mol/L, stirring and dispersing under an ultrasonic environment, dissolving barium acetate and strontium acetate in glacial acetic acid at 70-85 ℃, slowly adding a glacial acetic acid solution of barium acetate and strontium acetate into an ethanol dispersion liquid to form a jelly, adjusting the pH value to be 3-4.5 by using acetic acid, adding ethylene glycol monomethyl ether, and aging at room temperature for 36-72 hours to obtain a jelly, wherein the concentration of the polystyrene microspheres is 1-2 g/L, the concentration of the polystyrene microspheres is 0.2-0.5 mol/L, and the molar weight sum of the barium acetate and the strontium acetate is the same as that of the n-butyl titanate;
(2) drying, then removing viscosity for 3-4 hours at 300 ℃, heating to 800-1000 ℃, and calcining for 3-4 hours to obtain barium strontium titanate hollow microspheres;
(3) and adding 30-40 parts by mass of barium strontium titanate hollow microspheres into 100 parts by mass of insulating base liquid, adding 0.5-1 part by mass of polar molecular additive, and dispersing the mixed liquid in a homogenizer for 6-10 hours to obtain the electrorheological fluid.
2. The method for preparing an electrorheological fluid according to claim 1, characterized in that: the insulating base liquid comprises 50-65% of trifluoropropylmethyl cyclotrisiloxane, 0-20% of methyl hydrogen silicone oil, 20-30% of chlorinated paraffin and 5-25% of hydroxyl silicone oil.
3. An electrorheological fluid prepared by the method of any one of claims 1 to 2, having a viscosity that rapidly increases under the action of an electric field and changes from a liquid state to a solid state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110905301.9A CN113845964A (en) | 2021-08-04 | 2021-08-04 | Preparation method of electrorheological fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110905301.9A CN113845964A (en) | 2021-08-04 | 2021-08-04 | Preparation method of electrorheological fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113845964A true CN113845964A (en) | 2021-12-28 |
Family
ID=78975555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110905301.9A Pending CN113845964A (en) | 2021-08-04 | 2021-08-04 | Preparation method of electrorheological fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113845964A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5294426A (en) * | 1990-08-02 | 1994-03-15 | Colloid Research Institute | Electrorheological fluid compositions |
| US5501809A (en) * | 1994-08-19 | 1996-03-26 | The Lubrizol Corporation | Electrorheological fluids containing particles of a polar solid material and an inactive polymeric material |
| CN1139813A (en) * | 1995-07-06 | 1997-01-08 | 中国科学院物理研究所 | Doped strontium titanate electrorheological fluid and preparation method thereof |
| CN101591583A (en) * | 2009-07-09 | 2009-12-02 | 中国兵器工业第五二研究所 | A kind of high-stability multi-phase composite electrorheological fluid and preparation method thereof |
| CN103045325A (en) * | 2012-07-18 | 2013-04-17 | 大连理工大学 | Polygon laminated aniline strontium titanium oxide electrorheological fluid |
| CN104099163A (en) * | 2014-06-20 | 2014-10-15 | 中国兵器科学研究院宁波分院 | Method for preparing giant electrorheological fluid |
| CN108314078A (en) * | 2018-02-08 | 2018-07-24 | 西北工业大学 | A kind of preparation method of hollow ball-shape barium-strontium titanate powder material |
-
2021
- 2021-08-04 CN CN202110905301.9A patent/CN113845964A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5294426A (en) * | 1990-08-02 | 1994-03-15 | Colloid Research Institute | Electrorheological fluid compositions |
| US5501809A (en) * | 1994-08-19 | 1996-03-26 | The Lubrizol Corporation | Electrorheological fluids containing particles of a polar solid material and an inactive polymeric material |
| CN1139813A (en) * | 1995-07-06 | 1997-01-08 | 中国科学院物理研究所 | Doped strontium titanate electrorheological fluid and preparation method thereof |
| CN101591583A (en) * | 2009-07-09 | 2009-12-02 | 中国兵器工业第五二研究所 | A kind of high-stability multi-phase composite electrorheological fluid and preparation method thereof |
| CN103045325A (en) * | 2012-07-18 | 2013-04-17 | 大连理工大学 | Polygon laminated aniline strontium titanium oxide electrorheological fluid |
| CN104099163A (en) * | 2014-06-20 | 2014-10-15 | 中国兵器科学研究院宁波分院 | Method for preparing giant electrorheological fluid |
| CN108314078A (en) * | 2018-02-08 | 2018-07-24 | 西北工业大学 | A kind of preparation method of hollow ball-shape barium-strontium titanate powder material |
Non-Patent Citations (1)
| Title |
|---|
| 徐志超 等: "电流变液研究进展", 《科学通报》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7981315B2 (en) | Polar molecule dominated electrorheological fluid | |
| US8585819B2 (en) | Aqueous slurry of amorphous silica and method for its production | |
| US8105500B2 (en) | Slurry rheology modifier | |
| CN105754578A (en) | Nano-titanium crosslinking agent for fracturing fluids as well as preparation method and application of nano-titanium crosslinking agent | |
| DE102006044520A1 (en) | Process for the preparation of solids-rich silica sols | |
| CN103396548B (en) | A kind of preparation method of high dielectric polyimide/CaCu 3 Ti 4 O nanowire composite | |
| CN114956104B (en) | Silicon dioxide reinforcing agent for silicon rubber and preparation method thereof | |
| CN107903061B (en) | Method for manufacturing zirconium dioxide ceramic insulator | |
| CN113845964A (en) | Preparation method of electrorheological fluid | |
| Li et al. | Effect of microcapsules on dielectric properties of self-healing low density polyethylene insulation composites | |
| CN111153694A (en) | Microwave dielectric ceramic material and preparation method thereof | |
| DE2933079A1 (en) | SOLDER GLASS BOARD | |
| CN100412177C (en) | Blended titanium dioxide electric rheological liquid and its preparing method | |
| CN112250993A (en) | Alicyclic epoxy resin insulating material | |
| JPH0829952B2 (en) | Porous glass manufacturing method | |
| CN113511877B (en) | High-strength concrete and preparation method thereof | |
| Gao et al. | Preparation and electro responsive properties of Mg-doped BaTiO 3 with novel morphologies | |
| DE69206764T2 (en) | Electroviscous liquid | |
| CN111646491B (en) | Dispersion liquid for dispersing nano particles in corona-resistant paint, preparation method and application thereof, and application of stable nano particle dispersion liquid | |
| CN114806259A (en) | Coated modified nano titanium dioxide compound, preparation method and application thereof, and waterproof coating | |
| CN103013004A (en) | Carbon/silicon core-shell structure-polymer high-dielectric composite material | |
| CN113717779B (en) | Preparation method of novel electrorheological fluid | |
| CN107603712B (en) | Flower-like polyaniline nanoparticle electrorheological fluid and preparation method thereof | |
| RU2270328C1 (en) | Method of preparing grouting mortar | |
| CN1298821C (en) | Cerium ion doped mesopore titanium dioxide electrorheological fluid materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |