CN1959870A - Magnetic liquid of vacuum pump oil - Google Patents
Magnetic liquid of vacuum pump oil Download PDFInfo
- Publication number
- CN1959870A CN1959870A CN 200610122323 CN200610122323A CN1959870A CN 1959870 A CN1959870 A CN 1959870A CN 200610122323 CN200610122323 CN 200610122323 CN 200610122323 A CN200610122323 A CN 200610122323A CN 1959870 A CN1959870 A CN 1959870A
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- magnetic liquid
- pump oil
- nano
- surfactant
- 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
Landscapes
- Soft Magnetic Materials (AREA)
- Lubricants (AREA)
Abstract
Oil based magnetic liquid for vacuum pump includes surface-active agent, magnetic particles and carrier liquid of Nano ferric oxide. The carrier liquid is vacuum pump oil. The surface-active agent is in carboxylic acids. The magnetic particles of Nano ferric oxide are Nano particles of Fe3O4. The preparation method includes steps: adding surface-active agent and vacuum pump oil to Nano magnetic particles of ferric oxide; carrying out dispersion, heating and keeping temperature at 50-90 deg.C, intensive mixing to filter out precipitate so as to obtain oil based magnetic liquid for vacuum pump. Features are: not easy of volatilization, good stability, low steam pressure, high boiling point, long service life, and applicable to not close system.
Description
Technical field
The present invention relates to a kind of magnetic liquid, specifically, relate to a kind of magnetic liquid of vacuum pump oil.
Background technology
Magnetic liquid is that nano magnetic particle is dispersed in the carrier fluid (matrix), forms uniform liquid.Be mainly used in that low pressure or high pressure sealing, material are isolated, conducted heat, field such as lubricated.
Magnetic liquid in use needs conditions such as service time is long, heat-resisting.Existing magnetic liquid, as the keryl magnetic liquid, volatilization can not be used for a long time easily, and the heatproof heat resistance is poor.
Summary of the invention
The objective of the invention is to overcome the problem that above-mentioned existing magnetic liquid exists, provide a kind of not volatile, good stability, the pumping fluid magnetic liquid of long service life.
A kind of magnetic liquid of vacuum pump oil comprises surfactant, nano oxidized ferromagnetic particle and carrier fluid, and described carrier fluid is a pumping fluid.
In above-mentioned magnetic liquid of vacuum pump oil, described surfactant is the carboxylic acids surfactant.Described carboxylic acids surfactant is oleoyl sarcosine or oleic acid.
In above-mentioned magnetic liquid of vacuum pump oil, described nano oxidized ferromagnetic particle is Fe
3O
4Nano particle.
The preparation method of above-mentioned magnetic liquid of vacuum pump oil comprises the steps: in nano oxidized ferromagnetic particle, adds surfactant and pumping fluid, disperse, it is 50～90 ℃ that heating keeps temperature, fully stirs, the elimination sediment obtains magnetic liquid of vacuum pump oil.
Fe
3O
4The preparation method of nano particle, prior art adopt the chemical coprecipitation preparation mostly, prepare with chemical coprecipitation.With Fe
2+, Fe
3+Salting liquid and alkaline solution reaction, 30～90 ℃ of reaction temperatures, the reaction time is more than 10 minutes, nano magnetic particle.With the nanometer Fe for preparing
3O
4The magnetic-particle washed with de-ionized water is removed other ion as much as possible.
Compared with prior art, the present invention has following beneficial effect: magnetic liquid of vacuum pump oil of the present invention is not volatile, good stability, and steam forces down, the boiling point height, long service life can be in not closed system application.
Embodiment
Embodiment 1
With nanometer Fe
3O
4Powder 10 grams add oleic acid 5 grams, and pumping fluid 100 grams disperseed more than 30 minutes, and 50 ℃ of heating-up temperatures stir 200 rev/mins.After reaction is finished, remove to being dispersed in the sediment in the pumping fluid by centrifuge.
Embodiment 2
With nanometer Fe
3O
4Powder 9 grams add oleoyl sarcosine 25 grams, and pumping fluid 100 grams are placed on and disperse more than 30 minutes 80 ℃ of ultrasonic frequency 20 ± 10%KHz heating-up temperatures in the ultrasonic wave separating apparatus.After reaction is finished, remove to being dispersed in the sediment in the pumping fluid by centrifuge.
Claims (6)
1, a kind of magnetic liquid of vacuum pump oil comprises surfactant, nano oxidized ferromagnetic particle and carrier fluid, it is characterized in that described carrier fluid is a pumping fluid.
2, magnetic liquid of vacuum pump oil as claimed in claim 1 is characterized in that described surfactant is the carboxylic acids surfactant.
3, magnetic liquid of vacuum pump oil as claimed in claim 2 is characterized in that described carboxylic acids surfactant is oleoyl sarcosine or oleic acid.
4, magnetic liquid of vacuum pump oil as claimed in claim 1 is characterized in that described nano oxidized ferromagnetic particle is Fe
3O
4Nano particle.
5, the preparation method of the described magnetic liquid of vacuum pump oil of claim 1, it is characterized in that comprising the steps: in nano oxidized ferromagnetic particle, add surfactant and pumping fluid, disperse, it is 50～90 ℃ that heating keeps temperature, fully stir, the elimination sediment obtains magnetic liquid of vacuum pump oil.
6, preparation method as claimed in claim 5, the method that it is characterized in that described dispersion are that heating disperses or ultrasonic wave disperses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610122323 CN1959870A (en) | 2006-09-22 | 2006-09-22 | Magnetic liquid of vacuum pump oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610122323 CN1959870A (en) | 2006-09-22 | 2006-09-22 | Magnetic liquid of vacuum pump oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1959870A true CN1959870A (en) | 2007-05-09 |
Family
ID=38071498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610122323 Pending CN1959870A (en) | 2006-09-22 | 2006-09-22 | Magnetic liquid of vacuum pump oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1959870A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787320A (en) * | 2010-03-15 | 2010-07-28 | 四川大学 | Lubricant for cold extrusion of titanium alloy, preparation method and application thereof |
| CN103680799A (en) * | 2013-12-17 | 2014-03-26 | 北京交通大学 | Perfluor polyether oil-based magnetic liquid |
-
2006
- 2006-09-22 CN CN 200610122323 patent/CN1959870A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787320A (en) * | 2010-03-15 | 2010-07-28 | 四川大学 | Lubricant for cold extrusion of titanium alloy, preparation method and application thereof |
| CN101787320B (en) * | 2010-03-15 | 2013-02-27 | 四川大学 | Lubricant for cold extrusion of titanium alloy, preparation method and application thereof |
| CN103680799A (en) * | 2013-12-17 | 2014-03-26 | 北京交通大学 | Perfluor polyether oil-based magnetic liquid |
| CN103680799B (en) * | 2013-12-17 | 2016-08-17 | 北京交通大学 | A kind of perfluoro polyether oil based magnetic liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108993491B (en) | Activated persulfate catalyst prepared from modified carbon nano tube, and preparation and application thereof | |
| Rossi et al. | Recent advances in the development of magnetically recoverable metal nanoparticle catalysts | |
| CN101599335A (en) | A kind of oxidation resistant dimethyl silicon oil based magnetic fluid and preparation method thereof | |
| CN103680798B (en) | A kind of preparation method of perfluoro polyether oil based magnetic liquid | |
| CN109166687B (en) | Liquid metal magnetofluid functional material and preparation method thereof | |
| JP3746884B2 (en) | Magnetic fluid and manufacturing method thereof | |
| CN110304710A (en) | A kind of porous foam ceramic load nano zero valence iron composite material and preparation method | |
| CN106256765B (en) | A kind of magnetic carboxymethyl chitosan nano material and preparation method thereof | |
| CN101162634A (en) | Ion liquid based magnetofluid preparation method | |
| CN111111611A (en) | Magnetic iron oxide-graphene nanocomposite for removing water body dye pollution and preparation method and application thereof | |
| CN1959870A (en) | Magnetic liquid of vacuum pump oil | |
| CN106082296A (en) | A kind of spherical yttrium oxide raw powder's production technology | |
| JP2012187083A (en) | Apparatus and method for concentrating microorganism | |
| CN113877304B (en) | Preparation method and application of functionalized deep manganese removal filter material | |
| WO2022228264A1 (en) | Device for removing iron from nickel-cobalt-manganese sulfuric acid solution, and method for continuously removing iron ions from nickel-cobalt-manganese sulfuric acid solution at low temperature | |
| CN111875025A (en) | Graphene type nitrogen carbide loaded nano zero-valent iron composite material and preparation method and application thereof | |
| CN107774227A (en) | A kind of preparation method of ferro manganese composite oxides/ferroso-ferric oxide core-shell nano material | |
| KR20060094418A (en) | A method of producting carbon nano fluid using carbon black | |
| CN112121797A (en) | Magnetic TiO2Preparation method of graphene oxide composite material | |
| CN106782989A (en) | A kind of silicone-modified magnetic liquid of Silicon-oil-based carboxyl and preparation method thereof | |
| CN111063502A (en) | Magnetic fluid with adjustable stability and preparation and recovery method thereof | |
| CN109205579A (en) | The preparation method of aluminium nitride | |
| CN107324398A (en) | A kind of flake nano iron oxide and preparation method thereof | |
| CN105819520A (en) | Preparation method of ferroferric oxide nano particle with highly saturated magnetization intensity | |
| JP2009013044A5 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |