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Applications and Usages
magnetic fluid can control the physical properties through the magnetic field , with mobility, lubrication and sealing properties.
It is the stable colloidal system composed of nano meter (100nm) magnetic particles dispersed in a liquid highly .This feature can be used in the rotation axis seal , the magnetic liquid has characteristics of both a fluid and a magnetic materials, it can be adsorbed on the gap of permanent magnet or electromagnet and make the two relative motion of objects be sealed so that form of liquid o ring to use for precision instruments, precision machinery, gas seal, vacuum sealing, pressure sealing; it is most widely applied in seal and realize zero leakage .
It has advantages of less dosage, shockproof, no mechanical wear, small friction, low power consumption, no aging, self lubricating, long life, speed range wide, simple structure, the axis machining accuracy and surface finish requirements of sealing reliability etc.
2、The biological medicine field:
magnetic nanomaterials are widely used as the carrier of various anticancer drugs, the formation of a magnetic targeting drug delivery system; magnetic microspheres made of magnetic nanomaterials can be widely used for magnetic immunomagnetic cell separation, magnetic resonance angiography imaging.
Using magnetic nanoparticles in the properties of an external magnetic field can generate heat to kill tumor cells and achieve the purpose of treatment of cancer.
3、magnetic health care
As everyone knows, the human body has a biological magnetic field, every cell of the human body is a magnetic micro unit,so the changes in the external magnetic field can affect the body's physiological function.
It is reported that, the magnetic field has effects on the human nervous system, heart function, blood components, vascular system, blood lipid, blood rheology, immune function, endocrine function and activity .
Therefore, the magnetic field plays the role of disease treatment and health care for the human body.Based on this principle, we invented nano magnetic powder,
so we use products with the powders to achieve the adjustment function of the human body and disease resistance.
The water-based magnetic liquid's stability is very good , the liquid still can uniformly disperse although it had been placed for several months.
Therefore, the water-based magnetic liquid is a kind of similar to the magnetic pigment,it is easily added to a variety of products and can be widely used in various kinds of chemical fiber, plastics and rubber .That is an excellent health care products, health products add material.
Currently on the market there are some nano magnetic material application products, such as nanometer magnetic products, nano magnetic kneepad, nano magnetic bracelet.
4、We can take advantage of The magnetic of nanometer Fe3O4 powder and black color to made of magnetic recording materials, high gradient magnetic separator, microwave absorbing materials, special coatings and electrostatic copying toner.