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MAGNETIC FLUIDS

Magnetic Fluid Products

 
 

HEAD OFFICE :
BORON RUBBERS INDIA
Plot No. 52, Opp. Post Office, GIDC - Chitra,
Bhavnagar - 364004, INDIA
T / F : + 91 278 2445049
T / F : + 91 278 2447361
sales@boronrubbersindia.com
pdoshi@boronrubbersindia.com

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Magnetic Fluid :

MAGNETIC FLUID PRODUCTS

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Boron Rubbers India is a pioneer company manufacturing rubber sheets and allied products for nuclear radiation shielding. The company now enters into production of various types of ferromagnetic fluids also known as Ferro fluids. The technical advisors of the company are internationally recognized experts in the field of magnetic fluids and have led several research projects covering scientific and engineering aspects of this wonderful material. They have also carried out consultancy projects assigned by internationally well known company and national agencies. Under these they have prepared certain special types of fluids for certain specific application. They are members of committees involved with magnetic fluids and have published a large number of original research papers.

Magnetic fluids and other composite fluids (e.g. magnetorheological suspensions ferro emulsion etc.) are produced under their supervision in the company's laboratory and are tested in the Bhavnagar University as well as other well known testing laboratories of the state.

The company can supply stable water, hydrocarbon as well as diester based magnetic fluids. The company can also take projects on non-ferrous material separation, rotary shaft and exclusion seals (e.g. computer disk drive protection), viscous dampers, switches etc. The company can also take project to prepare special types of fluids such as temperature sensitive fluids, biocompatible fluids, magnetorheological fluids etc.

The company can supply experimental kit containing different types of fluids, compounds and assembly to carry out different experiments with the fascinating fluid. These kits are useful to school, under graduate and postgraduate students of science and engineering disciplines.

 

 

When myriad of ultra microscopic dipolar permanent magnets are colloidally dispersed in any nonmagnetic liquid matrix such as water or oil, a magnetic fluid is formed. Or in other wards, magnetic fluid is a stable colloidal dispersion of ferri / ferro magnetic particles of nano size in liquid carrier. It is stabilized either by coating hydrocarbon chain or providing an electrostatic charge on the particles. It is known as surfacted or ionic magnetic fluid. The number density of magnetic particles in a magnetic fluid can reach up to 1023 particles/m3.

Under normal condition & absence of external magnetic field, magnetic fluid becomes thermodynamically unstable. Hence magnetic dipole moment of each particle is randomly oriented and there is no resultant moment observed. So under normal condition & absence of external magnetic field, magnetic fluid behaves just like an ordinary fluid.

When magnetic fluid is placed under the influence of an external magnetic field, the dipole moment of each particle tends to align in the direction of an external magnetic field. So there is a large magnetic moment induced inside the medium. Therefore the fluid has net resultant magnetization. So under the influence of external magnetic field, the fluid exhibit several apparently looking like magical phenomena like defying gravity, levitation of non-magnetic object immersed in the fluid, spontaneous formation of spike, self levitation of magnets (in absence of other externally applied magnetic field. When it subjected to an external magnetic field, it exhibits large magnetization and when the field removed, the magnetic fluid instantaneously attains its zero magnetic state.

 

PROPERTIES OF STANDARD MAGNETIC FLUID

CARRIER

SATURATION MAGNETIZATION

FERRITE PARTICLES

VISCOSITY

POSSIBLE USE

Water

50 to 150 Gauss

Magnetite

5 cp

Domain detection

Hydrocarbon

50 to 500 Gauss

Magnetite

2 cp

Domain detection, sensors

Diester

300 Gauss

Magnetite

100 to 1500 cp

Separators, dampers, seals, loud speaker

Diester

250 Gauss

Mn-Zn ferrite

100 cp

Temperature sensitive

 

APPLICATION OF MAGNETIC FLUID

MECHANICAL ENGINEERING

CHEMICAL ENGINEERING

OPTICS

SPACE SCIENCE

BIOTECHNOLOGY

Pumping

Ink-Jet Printer

Spatial Filters

Satellite Dampers

Targeted Drug Delivery

Switches

Gas Valve

Optical Valves

Actuator

Enzyme Separation

Dampers

Separators

Black & White Display

 

Cell Binding

 

We can also supply nanomagnets covered with polypeptides (e.g. bovine serum albumin of polysaccharides such as dextran. Special magnetic fluids are available on request. Please specify the purpose for which it to be used. Also mention environmental conditions like temperature, pressure etc.

Temperature Sensitive Magnetic Fluid:
Ferro fluids usually available in market contain magnetite as nanoparticles; such fluids have high Curie temperature and low pyromagnetic coefficient. We have synthesized fluids which have low Curie temperature (<70 c) and have high pyromagnetic coefficient. These fluids may find application in energy conversion devices, transformer oil cooling etc.

 

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SPORTS FLOORING PRODUCTS

Gym (Gymnasium) Floor Nat, Gym Tile

Acoustic Under Layer, Rubber Flooring

Rubber Rolls Flooring with EPDM Flecks

Rubber Bricks, Pavers, Horse Race Way Tile

Safety Flooring, Rubber Playground Tile

Rubber Tiles & Rubber Pavers

Interlock Rubber Tile with EPDM Flecks

Colorful EPDM Rubber Granules

Anti Fatigue Mat

Rubber Matting, Rib Matting, Stud Matting

Garden Stepping Stones

Rubber Tree Rings

Lawn Edges

Parking Stoppers

Sports Floor Tables

 

 

RUBBER SHEET / ROLLS

Commercial Rubber Sheet & Rolls

NR/SBR Rubber Sheet & Rolls

Neoprene Rubber Sheet & Rolls

Nitrile Rubber Sheet & Rolls

EPDM Rubber Sheet& Rolls

Butyl Rubber Sheet & Rolls

Diaphragm Rubber Sheet & Rolls

   
 

RUBBERISED FABRICS

Rubberised Fabrics

   
 

Tank Lining Rubber Sheet

Tank Lining Rubber Sheet

   
 

RUBBER MATS

Electrical Insulation Mats

Antiskid / Floor Mats

Horse Stable Mat / Cow Mats

 

 
 

RADIATION SHIELDING PRODUCTS

 

FLEXIBLE NEUTRON SHIELDING PRODUCTS

Flexible Boron Sheet

Self Extinguishing Flexible Boron Sheet

Lead Loaded Boron Flexible Sheet

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FLEXIBLE GAMMA RADIATION SHIELDING

Lead Loaded Rubber Sheet

Lead Free Rubber Sheet

X-Ray Protective Flexible Sheet for Aprons

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POLYETHYLENE NEUTRON / GAMMA SHIELDING

Boron Polyethylene

Self-Extinguishing Boron Polyethylene

Lead Loaded Boron Polyethylene

Pure Polyethylene

   
 

MAGNETIC FLUID

Magnetic Fluid Products

 
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