CN107418210A - A kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber - Google Patents
A kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber Download PDFInfo
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- CN107418210A CN107418210A CN201710424347.2A CN201710424347A CN107418210A CN 107418210 A CN107418210 A CN 107418210A CN 201710424347 A CN201710424347 A CN 201710424347A CN 107418210 A CN107418210 A CN 107418210A
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- silicone rubber
- elastomer based
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- magnetorheological elastomer
- rheomagnetic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
- H01F1/447—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2272—Ferric oxide (Fe2O3)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/01—Magnetic additives
Abstract
The invention discloses a kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber, belong to magnetorheological materials field.The present invention is dissolved in water by ironic citrate and ferric nitrate, with graphite oxide composite drying and calcination processing, then with carbonyl iron dust composite ball-milling and being mixed with liquid silastic, shear and ultrasonic disperse is handled, it is prepared into conducting liquid silicon rubber, then silicon rubber energization is handled, it is set to produce magnetic field, carbonyl iron dust and ferrite powder are produced to the distribution for complying with magnetic field, finally stand solidification and be prepared into high rheological variation elastomer, high magnetic current modification magnetorheological elastomer based on silicone rubber prepared by the present invention is by improving the difference of internal magnetization particle, greatly enhance magnetic rheology effect, and by preparing equally distributed magnetorheological elastomer based on silicone rubber, it greatly strengthen the tensile strength and rebound performance of silicon rubber, safe preparation process green, it is pollution-free.
Description
Technical field
The invention discloses a kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber, belong to magnetorheological material
Material field.
Background technology
Magnetorheological materials are a kind of new intellectual materials of recent decades development, because it has a kind of special physics
Effect --- magnetic rheology effect, magnetorheological materials are the new function materials that a kind of mechanical property can be controlled by magnetic field.Due to it
Have the characteristics that fast response, good reversibility and the mechanical properties by adjusting the controllable prepared material of magnetic field size change, because
And it is obtained for extensive use in fields such as building, automobile, vibration controls in recent years.Magnetic rheology elastic body is magnetorheological materials man
A new member in race.It is to be blended in polymeric matrix material and solidify shape micron or nano level ferromagnetic particle
Into, polymer of the mixing with ferromagnetic particle applies externally-applied magnetic field in the curing process, using magnetic rheology effect, makes matrix
In ferromagnetic particle chain or column structure are formed on magnetic direction.
In addition to the mechanical property with field controllable, the other performance of magnetic rheology elastic body can also be controlled by magnetic field,
Such as damping capacity, rigidity, magnetic property etc..These special performances cause magnetic rheology elastic body to have broad application prospects.But
Be the magnetic rheology elastic body prepared at present due to a lack of larger magnetic rheology effect, limit their extensive uses industrially.
When magnetic-particle is identical, the relative magnetic rheology effect that the softer flexible base material of use can improve magnetic rheology elastic body is right
And it is relatively low as the magnetorheological elastomer material mechanical strength of matrix using silicon rubber, gel, polyurethane, fatigue resistance is poor, is not suitable for
Application in terms of most of load-bearing, although while existing magnetic-particle dispersiveness preferably, its skewness, not only lead
Cause composite elastic body mechanical property poor, also reduce elastomer rheomagnetic energy, its use range is influenceed, so preparing a kind of power
It is particularly important to learn the good high rheomagnetic magnetorheological elastomer based on silicone rubber of performance.
The content of the invention
Present invention mainly solves technical problem：For existing magnetorheological elastomer based on silicone rubber skewness, not only
Cause composite elastic body mechanical property poor, also reduce elastomer rheomagnetic energy, the problem of influenceing its use range, there is provided
A kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）In mass ratio 1:1:10, ironic citrate and ferric nitrate are stirred to obtain iron ion mixed liquor with deionized water, by matter
Measure ratio 1:5,100 mesh graphite oxides are stirred with iron ion mixed liquor, still aging and dry drying crystalline, by drying
Crystallization is calcined and is cooled to room temperature, obtains calcining particle, in mass ratio 1:5, calcining particle and carbonyl iron dust are stirred, ball milling
200 mesh sieves are crossed, obtain mixing and ball milling powder；
（2）In mass ratio 1:8, mixing and ball milling powder and liquid silastic LSR are stirred and are placed in high-speed shearing machine, is cut
Processing and 10~15min of ultrasonic disperse are cut, mixed dispersion liquid is obtained, takes 500~600mL mixed dispersion liquids to be placed in tank, by two
Block graphite cake is placed in parallel and immersed in mixed dispersion liquid, and switch on power two-stage, is powered and handles and stand solidification, completion to be solidified
After remove voltage, you can be prepared into a kind of high rheomagnetic magnetorheological elastomer based on silicone rubber.
Step（2）To apply 25kHz pulse current, pulse amplitude 20V, current density is for described energization processing
10mA/cm2。
The beneficial effects of the invention are as follows：
The present invention is doped into liquid silastic by iron oxide, graphite and carbonyl iron dust, prepares conductivity type liquid silastic, then
It is dissolved in water by ironic citrate and ferric nitrate, with graphite oxide composite drying and calcination processing, is then answered with carbonyl iron dust
Close ball milling and mixed with liquid silastic, shear and ultrasonic disperse is handled, conducting liquid silicon rubber is prepared into, then to silicon rubber
Energization is handled, and it is produced magnetic field, because carbonyl iron dust is acted on forming equally distributed structure by field strength, is made magnetic rheology elastic body
It is evenly distributed, improves magnetic rheology elastic body rheological property, carbonyl iron dust and ferrite powder produces the distribution for complying with magnetic field, finally
Stand solidification and be prepared into high rheological variation elastomer, improve the distribution of internal magnetization particle, greatly enhance magnetic rheology effect.
Embodiment
First in mass ratio 1:1:10, ironic citrate and ferric nitrate are stirred with deionized water, at 45~50 DEG C
After mixing 15~20min, iron ion mixed liquor is prepared into, then in mass ratio 1:5, by 100 mesh graphite oxides stirring with iron from
Sub- mixed liquor is stirred 25~30min, after subsequent still aging 3~5h, then 6~8h is dried at 65~70 DEG C；It is to be dried
After the completion of, obtain drying crystalline and be placed in crucible, 550~600 DEG C, after 1~2h is calcined in insulation are heated to by 10 DEG C/min heatings
Standing is cooled to room temperature, obtains calcining particle and in mass ratio 1:5, calcining particle and carbonyl iron dust are stirred, then 350~
2~3h of ball milling under 400r/min, cross 200 mesh sieves and obtain mixing and ball milling powder；In mass ratio 1:8, by mixing and ball milling powder and liquid
Silicon rubber LSR, which is stirred, to be placed in high-speed shearing machine, after 25~30min of shear treatment, the ultrasonic disperse under 200~300W
10~15min, obtain mixed dispersion liquid；500~600mL mixed dispersion liquids are taken to be placed in tank, by two pieces of 50mm × 50mm × 5mm
Graphite cake be placed in parallel and immerse in mixed dispersion liquid, switch on power two-stage, applies 25kHz pulse current, pulse to it
Amplitude is 20V, current density 10mA/cm2, subsequently power on and stand 10~12h of solidification, voltage is removed after the completion of to be solidified simultaneously
Stand 45~60min, you can be prepared into a kind of high magnetic current modification magnetorheological elastomer based on silicone rubber.
Example 1
First in mass ratio 1:1:10, ironic citrate and ferric nitrate are stirred with deionized water, 15min is mixed at 45 DEG C
Afterwards, iron ion mixed liquor is prepared into, then in mass ratio 1:5, the stirring of 100 mesh graphite oxides is stirred with iron ion mixed liquor and mixed
25min is closed, then after still aging 3h, then 6h is dried at 65 DEG C；After the completion of to be dried, obtain drying crystalline and be placed in crucible
In, it is heated to 550 DEG C by 10 DEG C/min heatings, is stood after insulation calcining 1h and be cooled to room temperature, obtains calcining particle and in mass ratio
1:5, calcining particle and carbonyl iron dust are stirred, then the ball milling 2h under 350r/min, cross 200 mesh sieves and obtain mixing and ball milling powder
End；In mass ratio 1:8, mixing and ball milling powder and liquid silastic LSR are stirred and are placed in high-speed shearing machine, at shearing
After managing 25min, ultrasonic disperse 10min, obtains mixed dispersion liquid under 200W；500mL mixed dispersion liquids are taken to be placed in tank, by two
Block 50mm × 50mm × 5mm graphite cake is placed in parallel and immersed in mixed dispersion liquid, and switch on power two-stage, and it is applied
25kHz pulse current, pulse amplitude 20V, current density 10mA/cm2, subsequently power on and stand solidification 10h, it is to be solidified
After the completion of remove voltage and stand 45min, you can be prepared into a kind of high magnetic current modification magnetorheological elastomer based on silicone rubber.
Example 2
First in mass ratio 1:1:10, ironic citrate and ferric nitrate are stirred with deionized water, 18min is mixed at 48 DEG C
Afterwards, iron ion mixed liquor is prepared into, then in mass ratio 1:5, the stirring of 100 mesh graphite oxides is stirred with iron ion mixed liquor and mixed
28min is closed, then after still aging 4h, then 7h is dried at 68 DEG C；After the completion of to be dried, obtain drying crystalline and be placed in crucible
In, it is heated to 580 DEG C by 10 DEG C/min heatings, is stood after insulation calcining 2h and be cooled to room temperature, obtains calcining particle and in mass ratio
1:5, calcining particle and carbonyl iron dust are stirred, then the ball milling 3h under 380r/min, cross 200 mesh sieves and obtain mixing and ball milling powder
End；In mass ratio 1:8, mixing and ball milling powder and liquid silastic LSR are stirred and are placed in high-speed shearing machine, at shearing
After managing 28min, ultrasonic disperse 13min, obtains mixed dispersion liquid under 250W；550mL mixed dispersion liquids are taken to be placed in tank, by two
Block 50mm × 50mm × 5mm graphite cake is placed in parallel and immersed in mixed dispersion liquid, and switch on power two-stage, and it is applied
25kHz pulse current, pulse amplitude 20V, current density 10mA/cm2, subsequently power on and stand solidification 11h, it is to be solidified
After the completion of remove voltage and stand 52min, you can be prepared into a kind of high magnetic current modification magnetorheological elastomer based on silicone rubber.
Example 3
First in mass ratio 1:1:10, ironic citrate and ferric nitrate are stirred with deionized water, 20min is mixed at 50 DEG C
Afterwards, iron ion mixed liquor is prepared into, then in mass ratio 1:5, the stirring of 100 mesh graphite oxides is stirred with iron ion mixed liquor and mixed
30min is closed, then after still aging 5h, then 8h is dried at 70 DEG C；After the completion of to be dried, obtain drying crystalline and be placed in crucible
In, it is heated to 600 DEG C by 10 DEG C/min heatings, is stood after insulation calcining 2h and be cooled to room temperature, obtains calcining particle and in mass ratio
1:5, calcining particle and carbonyl iron dust are stirred, then the ball milling 3h under 400r/min, cross 200 mesh sieves and obtain mixing and ball milling powder
End；In mass ratio 1:8, mixing and ball milling powder and liquid silastic LSR are stirred and are placed in high-speed shearing machine, at shearing
After managing 30min, ultrasonic disperse 15min, obtains mixed dispersion liquid under 300W；600mL mixed dispersion liquids are taken to be placed in tank, by two
Block 50mm × 50mm × 5mm graphite cake is placed in parallel and immersed in mixed dispersion liquid, and switch on power two-stage, and it is applied
25kHz pulse current, pulse amplitude 20V, current density 10mA/cm2, subsequently power on and stand solidification 12h, it is to be solidified
After the completion of remove voltage and stand 60min, you can be prepared into a kind of high magnetic current modification magnetorheological elastomer based on silicone rubber.
By high magnetic current modification magnetorheological elastomer based on silicone rubber obtained by above-described embodiment and conventional silicone rubber based magnetic rheologic bullet
Property body is detected, and is contrasted, as a result as shown in Table 1.
Table one：
Remarks：1# is conventional silicone rubber based magnetic rheologic elastomer.
As seen from the above table, the high magnetic current modification magnetorheological elastomer based on silicone rubber of the present invention has preferable mechanical property and magnetic
Rheological property, tensile strength are 11.5~12.7MPa, and rebound degree is 58~62%, and hardness is 45~48A, and magnetic rheology effect is significantly
Enhancing, up to 70~81%, magneto-induced modulus is up to 1.35~1.48MPa.
Claims (2)
1. a kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber, it is characterised in that specifically preparation process is：
（1）In mass ratio 1:1:10, ironic citrate and ferric nitrate are stirred to obtain iron ion mixed liquor with deionized water, by matter
Measure ratio 1:5,100 mesh graphite oxides are stirred with iron ion mixed liquor, still aging and dry drying crystalline, by drying
Crystallization is calcined and is cooled to room temperature, obtains calcining particle, in mass ratio 1:5, calcining particle and carbonyl iron dust are stirred, ball milling
200 mesh sieves are crossed, obtain mixing and ball milling powder；
（2）In mass ratio 1:8, mixing and ball milling powder and liquid silastic LSR are stirred and are placed in high-speed shearing machine, is cut
Processing and 10~15min of ultrasonic disperse are cut, mixed dispersion liquid is obtained, takes 500~600mL mixed dispersion liquids to be placed in tank, by two
Block graphite cake is placed in parallel and immersed in mixed dispersion liquid, and switch on power two-stage, is powered and handles and stand solidification, completion to be solidified
After remove voltage, you can be prepared into a kind of high rheomagnetic magnetorheological elastomer based on silicone rubber.
2. a kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber according to claim 1, its feature
It is：Step（2）Described energization processing is to apply 25kHz pulse current, pulse amplitude 20V, current density 10mA/
cm2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710424347.2A CN107418210A (en) | 2017-06-07 | 2017-06-07 | A kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber |
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| CN201710424347.2A CN107418210A (en) | 2017-06-07 | 2017-06-07 | A kind of preparation method of high rheomagnetic magnetorheological elastomer based on silicone rubber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862689A (en) * | 2019-11-29 | 2020-03-06 | 中国科学院合肥物质科学研究院 | Preparation method of magnetic control flexible surface material with orthotropic wettability |
| CN113583448A (en) * | 2021-08-25 | 2021-11-02 | 中国科学院宁波材料技术与工程研究所 | Deformable-variable-rigidity dual-function magnetic intelligent material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740192A (en) * | 2009-12-24 | 2010-06-16 | 上海交通大学 | Thermoplastic magnetorheological elastomer composite material and preparation method thereof |
| CN102675668A (en) * | 2012-05-30 | 2012-09-19 | 电子科技大学 | Preparation method for nanoparticle magnetorheological elastomer thin film |
| CN103435822A (en) * | 2013-07-05 | 2013-12-11 | 西南交通大学 | Method for preparing magnetorheological elastomer by using pulsating magnetic field |
| CN104788938A (en) * | 2015-04-13 | 2015-07-22 | 重庆大学 | High-damping and high-strength magneto-rheological elastomer and preparation method thereof |
-
2017
- 2017-06-07 CN CN201710424347.2A patent/CN107418210A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101740192A (en) * | 2009-12-24 | 2010-06-16 | 上海交通大学 | Thermoplastic magnetorheological elastomer composite material and preparation method thereof |
| CN102675668A (en) * | 2012-05-30 | 2012-09-19 | 电子科技大学 | Preparation method for nanoparticle magnetorheological elastomer thin film |
| CN103435822A (en) * | 2013-07-05 | 2013-12-11 | 西南交通大学 | Method for preparing magnetorheological elastomer by using pulsating magnetic field |
| CN104788938A (en) * | 2015-04-13 | 2015-07-22 | 重庆大学 | High-damping and high-strength magneto-rheological elastomer and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862689A (en) * | 2019-11-29 | 2020-03-06 | 中国科学院合肥物质科学研究院 | Preparation method of magnetic control flexible surface material with orthotropic wettability |
| CN110862689B (en) * | 2019-11-29 | 2022-04-26 | 中国科学院合肥物质科学研究院 | Preparation method of magnetic control flexible surface material with orthotropic wettability |
| CN113583448A (en) * | 2021-08-25 | 2021-11-02 | 中国科学院宁波材料技术与工程研究所 | Deformable-variable-rigidity dual-function magnetic intelligent material and preparation method and application thereof |
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