|
Technologies Developed
|
|
|
|
|
|
|
|
|
|
|
|
|
You are here :
Home > Technologies Developed >
Smart Materials |
| Smart Materials |
|
| |
Application
Increases fire retardant characteristics after coating
on any solid surface |
| |
| Specification |
|
| Salient Features |
- Good adhesion and compatible with cable sheath
- Weather resistance
- Excellent fire resistance
- Fast curing at ambient
- Long shelf life
- Economical
- Excellent Oxygen Index
Cost: Approx. Rs.150/- per kg Patent
Filed: No. 1783/ DEL / 97 (Granted)
|
|
Application
Excellent pollution resistant hydrophobic coating
for outdoor insulators |
| |
| Specification |
- Colour
: White
- Consistency
: Easily pourable
- Viscosity
: 4200 centipoise
- Tensile strength
: 10 kg/cm2
- Elongation at break
: 245 %
- Dielectric strength in air : 18
kV/mm
- Volume Resistivity, W - cm : 6.5 X 1015
- Dielectric constant @1kHz : 6.0
- Dissipation factor @1kHz : 0.001
- Shore hardness, A
: 48
|
| Salient Features |
- Room temperature curing
- Excellent hydrophobicity
- Good adhesion to solid surface
- Can be applied by brush or spray
- Good electrical and mechanical properties
- Synthesized from indigenously available raw materials
Cost: Approx. Rs.2000/- per kg
|
Application
Cable jointing and termination, bus bar insulation, sleeving
etc. |
| |
| Specification |
- Tensile strength
: 12 MPa
- Elongation at break
: >350 %
- Dielectric strength in air : >25 kV/mm
- Volume resistivity
: > 1015 W cm
- Dielectric constant
: 2.3
- Water absorption
:<0.1%
- Heat resistance
: 200 % (Elongation after 168 h ageing at 158°C)
|
| Salient Features |
- Meets the requirements of ASTM D 3149-85
- Raw Materials are easily available indigenously
- Economical
Cost: Depends on dimensions of heat shrinkable tube and scale
of production
|
Application
On rusted structural parts |
| |
| Specification |
- Suggested coating thickness —30 μm
|
| Salient Features |
- No need of any surface treatment like sand blasting before application
- Time saving
- Comparatively economical compared to similar paints
- Manpower saving
- Ease of manufacture
- Ready availability of raw materials
- Room temperature curing.
Cost: Approximately Rs 250/- per liter
|
|
Application
Any metallic surface which needs better corrosive
and wear resistance |
| |
| Specification |
- Up to 10 mm coating thickness feasible
|
| Salient Features |
- Excellent uniformity
- Good wear resistant (due to increase in hardness)
- Excellent corrosion resistance
- No need of external power supply
- No anode is required
- Simplicity of process
- Alloy coating of Ni-P and Ni-B
- Adjustable magnetic and electrical Resistivity
- Good wetting characteristics
- Low Hydrogen absorption
Cost : Approximately Rs. 3.00 per Sq. inch. (10 micron thickness)
|
|
Application
Potential substitute for expensive Polycarbonate and
suitable for electrical wiring accessories like Domestic switches, plug and sockets. |
| |
| Specification |
- Tracking resistance at 250 V - Withstood 50 drops
- Water absorption at ambient temperature for 24 hrs - 0.7%
- Glow wire test at 850 for 30 sec - Specimens extinguished within 5 sec after removal
of flame
- Ball pressure test at 125 °C - Depth of indentation is less than 2 mm
- Mechanical strength 10 blows of suitable impact tester- No cracks observed
|
| Salient Features |
- Meets all desired properties as per relevant specification
- All raw materials and ingredients are easily available in local market
- Easy processing
- Can be made of any colour
Cost: Rs. 110/- per kg. However, it can be reduced
further upon bulk production.
|
Application
As an encapsulant for dry type LT capacitor |
| |
| Specification |
- Curing time
: 24 h at ambient temperature
- Hardness, Shore A : 10 – 30
- Volume Resistivity : > 1012 ohm. cm
- Tensile strength : 5 kg / cm2
- Elongation
: 60 %
- Thermal conductivity : 0.25 W/m.K
|
| Salient Features |
- Easy to use
- Room temperature curing
- Easy availability of raw materials
- Does not affect the properties of capacitor
- Can be used for encapsulation of other electrical items with a little or no modification
Cost: Rs. 90/- per kg
|
Application
The compound coating can be applied on any solid substrate
and deters birds from sitting on that surface |
| |
| Specification |
- Colour
: Pale Yellow
- Consistency
: Grease (Gel) like
- Odour
: Similar to vegetable oil
- Weathering stability :
Slight colour change after 60 days of accelerated ageing test as per ASTM G 53
- Melting point
: 70 ºC
- Cone penetration at 27ºC : 15 mm
- Coverage (@ 5mm thickness): 5 kg / m2
|
| Salient Features |
- Low cost, easily and locally available raw materials
- Easily applicable by brush and no adverse effect on human skin
- Non toxic and eco friendly coating
- Coating does not cause any harm to birds
Cost: Rs. 300/- per kg (approx.)
|
Application
Deployed as impact crushing elements in ring granulators
for secondary coal crushing applications. |
| |
| Specification |
- Micro alloyed steel based hammer rings for ring granulators
- Unnotched Charpy impact strength: 70 Joules / cm2
- Tensile strength of heat treated material: > 900 MPa
- The room temperature microstructure comprises of acicular ferrite and a distribution
of matrix and grain boundary primary & secondary carbides
|
| Salient Features |
- One set of hammer rings can crush about 2.3 lakh metric tonnes of coal
- The hammer rings are ferromagnetic
- The rings are fabricated using a proprietary sand casting process
- Good wear resistance in dry and wet coal grinding condition
Cost: Approx Rs. 1500/- per ring
Award: Received Dr.
Vikram Sarabhai Young Scientist Award 2005-
06, from Govt. of Gujarat
|
Application
Contact tip of low voltage switchgear |
| |
| Specification |
- Density : 98% of theoretical density of monolithic material
- Hardness : 87 VPN
- Conductivity : 78% IACS
- Microstructure : Contact tip show uniform distribution of tin oxide particles
in the matrix of silver
- Conforms to (32A) AC 3 rating. Endurance and make & break test as per
IS: 13947 – Pt. 4, Sec.1 – 1993 and IEC: 947 –4-1(1990)
|
| Salient Features |
- Non toxic
- Good arc erosion resistance and contact weld ability
- A novel fabrication route based on electro chemistry followed by powder metallurgy
Cost: Material cost is approx. Rs. 25,000/-
per kg.
|
Application
Eco-friendly polyester coating for electrical applications
e.g. Wire Enamels, impregnating varnish, printed circuit board (PCB), Structural
materials. |
| |
| Specification |
- State : Liquid
- Colour : Pale Yellow to brown
- Solubility: Soluble in water, alcohol etc.
- Solid Content: 50 – 70 %
- Curing Time: 4 – 6 Hrs.
- Curing Temperature: 150 – 200oC
- Thermal Class: Class F
- Dielectric Strength: 60 kV/mm
|
| Salient Features |
- Eco-friendly insulating coating
- New technology
- Economical and reliable material
- Reduced risk of human health and fire during coating applications
Cost: Approx. Rs.200/- per litre
Patent Filed: No. 442 / MUM / 2005 on 07.04.2005
|
Application
The varnish is suitable for the LT electrical applications
such as impregnation of motor coils, transformer etc. |
| |
| Specification |
- Density, gm/cm3 : 1.075
- Viscosity, cps : 50
- Non volatile matter, % : 50
- Drying time in thin film : 4 hrs. at 1300 C
- Flash Point, oC : 25
- Ability to cure in considerable thickness : S2,U2, I5 I4.2
- Check for resoftening : W2
- Flexibility : No crack observed
- Effect of varnish on Enameled wires : Passed test
- Résistance of transformer oil : No softening, blistering, wrinkling,
disintegration or separation of varnish film
|
- Visual examination - Acidity of oil -(before and after aging) : Slightly
yellow Colour of oil Nil, before and after ageing
- Sludge value of oil - (Before and after aging) : Nil, before
and after ageing |
|
- Effect of heat aging on flexibility : No visible change or detachment
of film
- Volume Resistivity, Ω cm : 1 X 1012
- Thermal rating by TGA : 130oC (Class B)
- Dielectric constant at 25oC : 2.22
- Dissipation factor at 25oC : 0.0098
- Electric strength at 25oC, kV/mm : 66
|
| Salient Features |
- Non-Toxic, Cost Effective and User friendly
- Raw materials available indigenously
- Meets the requirements of IS: 10026
- Superior Electric Strength
Cost: Rs. 70/- per kg
|
|
|
|
