Nanometer Iron tetroxide
Product Details
Be 2.5g Fe3O4 dispersed in 100mL water, respectively, each with different amounts of dispersing agent (sodium oleate and polyethylene glycol mixture) (respectively, 0.25mL, 0.50mL, 0.75mL, 1.00mL, 1.25mL), separately placed in a strong magnetic field 320mT observe stratification was found that dispersants and 0.50mL to 0.25mL are scattered phenomenon, 0.75mL no longer stratification, and then more little effect, but a waste of reagents. It is a general principle of dispersant amount like, to the amount of delamination-free cases, an unnecessary added more numerous....
Such as:
Will be added to a certain amount of Fe3O4 containing dispersant (sodium oleate and polyethylene glycol mixture) in 100mL of hot water solution, while stirring with ultrasonic dispersion, the reaction 1h, which have magnetic fluid.
Preparation Method:
4The use of nano-Fe3O4 magnetic powder and deep black color, can be made magnetic recording materials, high-gradient magnetic separator, microwave absorbing materials, special coatings and electrostatic photocopying contrast medium.
3Magnetic Therapy:
As we all know, the human body has a bio-magnetic field, the human body every cell is a magnetic micro-unit, so the changes in external magnetic field can affect the body's physiological function.
It is reported that we can see, the magnetic field of the body's nervous system, heart function, blood components, vascular system, blood lipids, blood rheology, immune function, endocrine function
and have an impact on the role of such activity. Therefore, the human body has a role in disease treatment and health care. Based on this principle, we have invented a nano-magnetic powder, so add
this powder to adjust the product to the human body function and improve resistance to diseases, to play the role of health care. Obtained the stability of water-based magnetic fluids well, placing
a few months still dispersed. Therefore, it can be water-based magnetic fluids as a similar to the magnetic paint is easy to add to a variety of products; It can be widely used in various types of
chemical fiber, plastics, rubber, and is a health-care products, health products, excellent to add material. Currently on the market there are a number of nano-magnetic materials applications, such
as nano-magnetic therapy products, nano-magnetic knee, nano-magnetic therapy bracelets.
Magnetic nano-materials are widely used as a carrier of various anti-cancer drugs, forming a kind of magnetic targeting drug delivery system; Magnetic nano-materials made of magnetic microspheres can be widely used in magnetic separation of immune cells, magnetic resonance imaging imaging and so on. Plus the use of magnetic nano-materials under the action of alternating electromagnetic field can produce the characteristics of heat to kill tumor cells, to achieve the purpose of treatment of cancer.
2Biopharmaceutical Industry :
Magnetic liquid also known as magnetic fluid or ferrofluid magnetic fluid,can be controlled with the magnetic field characteristics of its physical properties.with a liquid carrier mobility, lubrication, and sealing. It is from the nano-scale (10nm or less) the strong magnetic particles in a high degree of dispersion in a liquid formed a stable colloidal system.Can be used as mechanical seal rotating shaft seal (dynamic seal), the use of magnetic fluids is characterized by fluid is magnetic, it can be absorbed on a permanent magnet or an electromagnet gap, allowing the relative motion of two objects to be sealed. The formation of liquid O-rings, used for precision instruments, precision machinery, gas sealing, vacuum sealing, pressure sealing, etc; The most widely used dynamic seal can achieve zero leakage with a sealing liquid with less, shock, no mechanical wear, small friction, low-power, non-aging, self-lubricating, long life, speed to adapt to a wide range of simple structure, right-axis machining accuracy and finish much, sealed and reliable.
1Magnetic seal:
Main used:
1867.5K(1594.5)
Melting Point
5.18g/cm3
Density
231.54
Molecular Weight
4.8-5.1 g/cm3
True density
0.84 g/cm3
Accumulate density
>60 m2/g
BETm2/g
20nm
Average grain diameter(nm)
>99%
Purity
black spherical particles
Appearance
MH-Fe3O4
|
Model Specification: Nanometer Iron tetroxide placed in medium ,the use of plastic melting method and add the modifier method of dispersing agent, by adsorption of particles formed on the surface electric double-layer structure of nano-particles to prevent reunite dispersed preparation of a stable water-based and organic nano-magnetic fluid. Nanometer Iron tetroxide is a kind of ferrite, namely Fe2+Fe3+Fe3+O4(2+and3+ representative valence of iron).In the Fe3O4, the IRON two kinds of valence state,an iron atom significantly +2 prices, two iron atoms significantly +3 Price,so the Nanometer Iron tetroxide can be seen from the composition of FeO and Fe2O3 compounds,can be expressed as FeO |
Nanometer Iron tetroxide
Purity >99%
Average grain diameter(nm)
20nm
- Model Number:Iron tetroxide
- Brand Name:ABF
- Place of Origin:Fujian China (Mainland)
- Country:China (Mainland)
- telephone:86-574-87372875
| Payment Terms: | L/C,T/T,MoneyGram |
| Model Number: | Iron tetroxide |
| Brand Name: | ABF |
| Place of Origin: | Fujian China (Mainland) |
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