CN104376951A - New ether-group magnetic liquid sealing material - Google Patents
New ether-group magnetic liquid sealing material Download PDFInfo
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- CN104376951A CN104376951A CN201410635481.3A CN201410635481A CN104376951A CN 104376951 A CN104376951 A CN 104376951A CN 201410635481 A CN201410635481 A CN 201410635481A CN 104376951 A CN104376951 A CN 104376951A
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Abstract
The invention discloses a new ether-group magnetic liquid sealing material and belongs to the technical field of lubrication and sealing of precise parts. According to the formula, the material is characterized by being composed of nanoscale ferrite particle powder, additives and carrier liquid, wherein the nanoscale ferrite particle powder is composed of carbonyl iron powder (nanoscale) and ferroferric oxide powder (nanoscale), the additives are composed of oleic acid epoxy ester, amino-18-propylamine, petroleum sodium sulfonate, and di-tertiary-butyl mixed ester, and the carrier liquid is composed of polymer perfluoroalkyl-group ether and polyphenylene oxide. The new ether-group magnetic liquid sealing material is excellent in temperature resistance, pressure resistance and durability. The new ether-group magnetic liquid sealing material can be used in various vacuum devices, propeller shafts of ships and water turbine shafts, and can have good sealing and lubricating effects, the new ether-group magnetic liquid sealing material has the advantages of being low in friction and energy consumption, achieving zero leakage and the like, and even in the conditions that the temperature of a sealing portion of the new ether-group magnetic liquid sealing material is higher than 180 DEG C and the linear velocity of a shaft is larger than 28 m/s, long-time effective sealing can be achieved.
Description
Technical field
The invention belongs to lubrication and the technical field of sealing technology of precision component, the present invention relates to a kind of ether magnet fluid sealing new material, be specifically related to the ether magnet fluid sealing new material that a kind of heat resistance is excellent.
Background technology
Magnetic fluid also claims magnetic liquid or ferrofluid (English is MagneticFIuid or FerrofIuid), it is incorporated in carrier fluid by ferromagnetic nano particulate, and make it be distributed in carrier fluid equably with surface active dispersing agent, thus form the mixed suspension colloid of a kind of solid liquid phase.It had both had the mobility of liquid, had magnetic again.Magneticfluid Seal Technique utilizes magnetic fluid to realize the response characteristic in magnetic field.When magnetic liquid being injected in the magnetic circuit gap be made up of high performance permanent magnet, pole shoe that magnetic conduction is good, rotating shaft, under the influence of a magnetic field, magnetic liquid forms a liquid "O"-ring in gap, when the effect of magnetic fluid pressure difference, magnetic fluid is micro-slightly mobile in non-uniform magnetic-field, the magnetic force of the pressure reduction that creates antagonism, thus reaches new balance, serve the effect of sealing, the sealing principle of Here it is magnetic fluid.Magnetic fluid is a kind of hitech materials in field of engineering technology with extensive use.Middle 1960s, first the U.S. be used successfully to the vacuum seal that solves suit moving part and the fixation problem of spaceship liquid fuel under state of weightlessness.Application magnetic fluid technique the earliest, at most, the most successful equipment is various vacuum equipments, and magnet fluid sealing has the advantages such as low friction, low energy consumption, zero leakage.But Magneticfluid Seal Technique also exists the shortcoming of heat resistance difference, the temperature resistant range of general magnetic fluid is between-20 degree Celsius are to 105 degree, and super going beyond the scope can cause base fluid to evaporate, and O type circle is disintegrated fast, seal failure.
Summary of the invention
The object of the invention is the ether magnet fluid sealing new material providing a kind of heat resistance excellent for above-mentioned deficiency.
To achieve these goals, the technical solution adopted in the present invention is the ether magnet fluid sealing new material that a kind of heat resistance is excellent, and the feature of its formula is: be made up of nano-level iron magnet particles powder, additive, carrier fluid; Wherein, nano-level iron magnet particles powder is made up of carbonyl iron dust (nanoscale), tri-iron tetroxide powder (nanoscale); Additive is made up of oleic acid epoxy ester, 18 amino propylamine, di-t-butyl mixed ester, petroleum sodium sulfonate; Carrier fluid is made up of poly-perfluoroalkyl ethers, polyphenylene oxide.
The percentage by weight of its each component of filling a prescription is:
Ferromagnet particulate powder (nanoscale) 1%---6%
Additive 1%---2%
Carrier fluid 92%---98%
Wherein, each weight percentages of components forming nano-level iron magnet particles powder is:
Carbonyl iron dust (nanoscale) 60%---80%
Tri-iron tetroxide powder (nanoscale) 20%---40%
Wherein, each weight percentages of components forming additive is:
Wherein, each weight percentages of components forming carrier fluid is:
Polyphenylene oxide 20%---40%
Poly-perfluoroalkyl ethers 60%---80%
The present invention compared with the existing technology has the following advantages and positive effect: first, and the magnet fluid sealing material of prior art exists the problem of heat resistance difference, and its temperature resistant range is between-20 degree Celsius are to 105 degree.Its carrier fluid of a kind of ether of the present invention magnet fluid sealing new material is made up of low evaporation rate, low pour point, resistant to elevated temperatures poly-perfluoroalkyl ethers and polyphenylene oxide, temperature resistant range of the present invention is between-70 degree Celsius are to 255 degree, its heat resistance is better than prior art greatly, in addition, be coefficient of friction modifying agent with oleic acid epoxy ester in additive, with 18 amino propylamine, di-t-butyl mixed ester for dispersant, take petroleum sodium sulfonate as rust inhibitor.Finished product of the present invention can be applied to the sealing of vacuum occasion, and its voltage endurance capability is more than 2.2Mpa; Finished product of the present invention can in the extreme environment of 180 degrees Celsius and the linear velocity of axle more than under the situation of 28m/s, without the need to carrying out cooling processing, make its sealing device long time running in normal state.
Embodiment
The following examples make further proof to the present invention, the present invention is not limited thereto.
Embodiment one
A kind of ether magnet fluid sealing new material, its component and percentage by weight as follows:
6 grams, ferromagnet particulate powder (nanoscale)
Additive 2 grams
Carrier fluid 92 grams
Wherein, each weight percentages of components forming nano-level iron magnet particles powder is:
Carbonyl iron dust (nanoscale) 60 grams
40 grams, tri-iron tetroxide powder (nanoscale)
Wherein, each weight percentages of components forming additive is:
Wherein, each weight percentages of components forming carrier fluid is:
Polyphenylene oxide 300 grams
Poly-perfluoroalkyl ethers 700 grams
A kind of ether magnet fluid sealing of the present invention new material, its preparation method is:
1, first prepare carrier fluid: in a stirred tank, add poly-perfluoroalkyl ethers and polyphenylene oxide stirs five minutes, obtained uniform carrier fluid 1000 grams is done (that is: carrier fluid for subsequent use) for subsequent use.
2, prepare additive: in another stirred tank, add oleic acid epoxy ester, then, add 18 amino propylamine respectively, petroleum sodium sulfonate, di-t-butyl mixed ester stir, obtained additive 100 grams is done (that is: additive for subsequent use) for subsequent use.
3, nano-level iron magnet particles powder is prepared: in a small-sized drum-type mixer, add carbonyl iron dust (nanoscale) and tri-iron tetroxide powder (nanoscale), start mixer to operate 10 minutes, obtained uniform 100 grams, mixture particulate powder is done for subsequent use, and this mixture particulate powder is exactly nano-level iron magnet particles powder (that is: nano-level iron magnet particles powder for subsequent use).
4, a kind of ether magnet fluid sealing new material is prepared: get 92 grams of carrier fluids and 2 grams of additives join in the 3rd stirred tank, stir, then, add 6 grams of nano-level iron magnet particles powder again and continue stirring 20 minutes, after stirring, obtained suspension is taken out, put in ultrasonic emulsator (180W), " cavitation " of doing 35 minutes just obtains the ether magnet fluid sealing new material of black lubrication, and this ether magnet fluid sealing new material is product of the present invention.
Embodiment two
A kind of ether magnet fluid sealing new material, its component and percentage by weight as follows:
2 grams, ferromagnet particulate powder (nanoscale)
Additive 1 gram
Carrier fluid 97 grams
Wherein, above 2 grams ferromagnet particulate powder (nanoscale) for subsequent use, 1 gram of additive for subsequent use, 97 grams of carrier fluids for subsequent use take out from embodiment one, so, completely the same described in their respective components and percentage by weight and embodiment one.
A kind of ether magnet fluid sealing new material, except the percentage by weight difference of its component, consistent with described in embodiment one of its method prepared.
Embodiment three
A kind of ether magnet fluid sealing new material, its component and percentage by weight as follows:
4 grams, ferromagnet particulate powder (nanoscale)
Additive 2 grams
Carrier fluid 94 grams
Wherein, above 4 grams ferromagnet particulate powder (nanoscale) for subsequent use, 2 grams of additives for subsequent use, 94 grams of carrier fluids for subsequent use take out from embodiment one, so, completely the same described in their respective components and percentage by weight and embodiment one.
A kind of ether magnet fluid sealing new material, except the percentage by weight difference of its component, consistent with described in embodiment one of its method prepared.
Claims (2)
1. an ether magnet fluid sealing new material, is characterized in that: its formula is made up of nano-level iron magnet particles-powder, additive, carrier fluid; Wherein, nano-level iron magnet particles powder is made up of carboxyl iron powder (nanoscale), tri-iron tetroxide powder (nanoscale); Additive is made up of oleic acid epoxy ester, 18 amino propylamine, di-t-butyl mixed ester, petroleum sodium sulfonate; Carrier fluid is made up of poly-perfluoroalkyl ethers, polyphenylene oxide.
2. a kind of ether magnet fluid sealing new material according to claim 1, it is characterized in that, the percentage by weight of its each component of filling a prescription is:
Ferromagnet particulate powder (nanoscale) 1%---6%
Additive 1%---2%
Carrier fluid 92%---98%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635481.3A CN104376951A (en) | 2014-11-08 | 2014-11-08 | New ether-group magnetic liquid sealing material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635481.3A CN104376951A (en) | 2014-11-08 | 2014-11-08 | New ether-group magnetic liquid sealing material |
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| CN104376951A true CN104376951A (en) | 2015-02-25 |
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| CN201410635481.3A Pending CN104376951A (en) | 2014-11-08 | 2014-11-08 | New ether-group magnetic liquid sealing material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105462266A (en) * | 2015-12-21 | 2016-04-06 | 冯智勇 | Novel magnetic fluid seal material applied to radial tire |
| CN105462262A (en) * | 2015-12-21 | 2016-04-06 | 冯智勇 | Novel magnetofluid tire sealing material taking methylsilicone oil as continuous phase |
| CN105462268A (en) * | 2015-12-21 | 2016-04-06 | 冯智勇 | New magnetofluid tire seal material taking ethyl silicon oil as continuous phase |
| CN105504834A (en) * | 2015-12-21 | 2016-04-20 | 冯智勇 | Novel material taking cyanogen-containing silicone oil as continuous phase and used for magnetic fluid tire sealing |
| CN109440949A (en) * | 2018-11-21 | 2019-03-08 | 三峡大学 | A kind of magnetohydrodynamic plant and method for steel antirust |
Citations (4)
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|---|---|---|---|---|
| JPS6364308A (en) * | 1986-09-05 | 1988-03-22 | Rigaku Keisoku Kk | Magnetic fluid |
| CN103337329A (en) * | 2013-07-11 | 2013-10-02 | 江苏海纳磁性纳米新材料科技有限公司 | Preparing method of perfluoroalkylpolyether oil-based magnetofluid |
| CN103680797A (en) * | 2013-12-17 | 2014-03-26 | 北京交通大学 | Method for preparing magnetic nano-particles decorated through fluorine-containing silane surface active agents |
| CN104008845A (en) * | 2014-06-10 | 2014-08-27 | 冯智勇 | Novel magneticfluid sealant |
-
2014
- 2014-11-08 CN CN201410635481.3A patent/CN104376951A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6364308A (en) * | 1986-09-05 | 1988-03-22 | Rigaku Keisoku Kk | Magnetic fluid |
| CN103337329A (en) * | 2013-07-11 | 2013-10-02 | 江苏海纳磁性纳米新材料科技有限公司 | Preparing method of perfluoroalkylpolyether oil-based magnetofluid |
| CN103680797A (en) * | 2013-12-17 | 2014-03-26 | 北京交通大学 | Method for preparing magnetic nano-particles decorated through fluorine-containing silane surface active agents |
| CN104008845A (en) * | 2014-06-10 | 2014-08-27 | 冯智勇 | Novel magneticfluid sealant |
Non-Patent Citations (1)
| Title |
|---|
| 李文昌: "新型液体材料-磁性流体", 《化工进展》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105462266A (en) * | 2015-12-21 | 2016-04-06 | 冯智勇 | Novel magnetic fluid seal material applied to radial tire |
| CN105462262A (en) * | 2015-12-21 | 2016-04-06 | 冯智勇 | Novel magnetofluid tire sealing material taking methylsilicone oil as continuous phase |
| CN105462268A (en) * | 2015-12-21 | 2016-04-06 | 冯智勇 | New magnetofluid tire seal material taking ethyl silicon oil as continuous phase |
| CN105504834A (en) * | 2015-12-21 | 2016-04-20 | 冯智勇 | Novel material taking cyanogen-containing silicone oil as continuous phase and used for magnetic fluid tire sealing |
| CN109440949A (en) * | 2018-11-21 | 2019-03-08 | 三峡大学 | A kind of magnetohydrodynamic plant and method for steel antirust |
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Application publication date: 20150225 |