Specification of iron oxide fe3o4 powder:
|
Part No.
|
Particle
|
Purity
(%)
|
SSA
(m2/g)
|
Bulk density
(g/cm3)
|
Density
(g/cm3)
|
Crystal
|
Color
|
|
OP28C08D-20N
|
10-20nm
|
99.9
|
35
|
1.2
|
5.7
|
Spherical
|
black
|
OP28C08D-50N
|
50nm
|
99.9
|
20
|
1.65
|
5.7
|
Spherical
|
black
|
OP28C08D-100N
|
100nm
|
99.9
|
15
|
2
|
5.7
|
Spherical
|
black
|
OP28C08D-1U
|
1-2um
|
99.9
|
13
|
2.6
|
5.7
|
Spherical
|
black
|
Note: We can supply different size products of
iron oxide fe3o4 powder according to client's requirements.
-
1. Small Particles, uniform, spherical under TEM;
-
2. Surface modified by silane coupling agent to reduce agglomeration particles, good dispersion performance;
-
3. Add the appropriate amount of magnetic activator, magnetic effect is good;
-
4. Have high temperature weather ability;
Application of iron oxide fe3o4 powder:
(1) magnetic seal:
Magnetic fluid, also known as magnetic fluid or ferrofluid, has the characteristics of being able to control its physical properties through a magnetic field, and has the fluidity, lubricity and sealing properties of the liquid carrier. It is a stable colloidal system formed by the nano-sized ferromagnetic particles highly dispersed in a liquid. The rotary shaft seal (dynamic seal), which can be used as a mechanical seal, utilizes the characteristics that the magnetic liquid is both a fluid and a magnetic material, and can be adsorbed in the gap of the magnet or the electromagnet to seal the two relatively moving objects. Form a liquid O-ring for instrument, machinery, gas sealing, vacuum sealing, pressure sealing, etc.; with less sealing liquid, shockproof, mechanical wear, small friction, low power consumption, self-lubricating, wide speed range, The utility model has the advantages of simple structure, low requirement for shaft machining precision and smoothness, and reliable sealing.
(2) Using magnetic and dark black colors of nano-Fe3O4 powder, magnetic recording materials, high gradient magnetic separators, microwave absorbing materials, special coatings and xerographic developers can be produced.
SEM & XRD of iron oxide fe3o4 powder:
