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Applications of iron nanoparticles

wallpapers News 2021-08-09
Nano-iron particles have a three-dimensional nano-size, so they have many strange physical and chemical properties. The particles will have quantum size effect, small size effect, surface effect and macro quantum tunneling effect; in terms of light, electricity, magnetism, machinery, etc. Demonstrates excellent characteristics; has a wide range of applications in catalysis, light-filtering, light absorption, medicine, biology and magnetic media materials. For example: using magnetic nano iron as a carrier to combine with anti-tumor substances and positioning the tumor area in a magnetic field can effectively control the distribution of the carrier in the body and achieve the purpose of targeted delivery of chemotherapeutic drugs.
With the development of nanotechnology, bio-nanotechnology in the field of tumor treatment and diagnosis has become a major research hotspot and a bright spot in medicine, biology and other related disciplines. Nano-iron oxide is used as a pigment, which not only maintains the good heat resistance, weather resistance and ultraviolet absorption effect of general inorganic pigments, but also can be well dispersed in an oily carrier. The paint or ink prepared with it is satisfactory Transparency. The coating is made of nano-iron oxide with semiconductor characteristics, which can play a role in electrostatic shielding due to its high electrical conductivity. The transparent iron oxide pigment that can absorb light of certain wavelengths is coated on the interference-type pearlescent pigment, such as mixed with flash aluminum paste to form a combination pigment.
Uses of iron nanoparticles
1. Absorbing materials
Metal nano powder has a special absorption effect on electromagnetic waves. Iron, cobalt, zinc oxide powder and carbon-coated metal powder can be used as high-performance millimeter wave invisible materials, visible light-infrared invisible materials and structural invisible materials, and mobile phone radiation shielding materials.
2. Magnetically conductive paste
Utilizing the characteristics of high saturation magnetization and high magnetic permeability of nano iron powder, it can be made into magnetic conductive paste, which can be used for the bonding structure of fine magnetic head.
3. High-performance magnetic recording materials
Utilizing the advantages of high coercivity, high specific saturation magnetization, high signal-to-noise ratio and good oxidation resistance of nano-iron powder, the performance of magnetic tapes and large-capacity soft and hard disks can be greatly improved.
4. Magnetic fluid
The magnetic fluid produced from iron, cobalt, nickel and their alloy powders has excellent performance and can be widely used in sealing and shock absorption, medical equipment, sound adjustment, light display and other fields.
Storage conditions
This product should be sealed and stored in a dry and cool environment. The packaging is inert gas protection or vacuum packaging. The spherical iron powder prepared by plasma method is easy to ignite spontaneously in the air. It is a flammable product.

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