Toluene - Exporter, Importer & Manufacturer, Hyderabad, India
ABR ORGANICS LIMITED
  
 
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Product Code : 02

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Product Specification
PRODUCT TRADE NAME Toluene
PRODUCT TYPE POLYIMIDE RESIN (Bis-itaconimide type) Powder Resin

As a result of the efforts of Indian Space Research Organization to develop a processible polyimide, a prepolymer having excellent processability, stability at room temperature and with moderate cure temperatures was developed. Composites made from this prepolymer have yielded components for space and aerospace applications. ABRON-R 750 is being manufactured by A B R ORGANICS LIMITED with the license from Indian Space Research Organization.

ABRON-R 750 is highly amenable for polar & filament winding technology also. The prepregs made from ABRON-R 750 have a long shelf life of 3 to 6 months at room temperature.

GENERAL PROCEDURE FOR MAKING LAMINATES

Silica/Glass/Carbon cloth is impregnated with the resin solution. The solvent is allowed to evaporate (at 55 - 60°C when DMF is used as an solvent). The prepreg should have resin content of 35 - 40% weight.

The tack & drape of the prepreg is controlled by adjusting the residual solvent content. The prepregs are stacked in mold and heated to 120°C and held for one hour under 60 psi pressure. The mold temperature is raised to 160 - 165 °C as a second step and maintained for another hour. Final cure is done by heating the mold to 200 - 220 °C for 2 hours under pressure. The laminate is released after cooling under pressure to 80 - 100 °C. Post curing is to be done at about 125 °C for 6 hours.

This procedure, however is not same for all shapes and thickness of laminates. The exact cycle has to be determined based on trials.

APPLICATIONS
  • Aerospace & space applications as resin matrix for composites
  • Slot wedges for locomotive traction motors
SPECIFICATIONS OF ABRON-R 750
State Fine Powder
Colour Light Pinkish Brown
Specific Gravity at 25°C 1.1
Solubility NMP / DMF
Bulk viscosity of 40% Solution 40 - 100 cP
Shelf life of Resin Powder 6 months at ambient temperatures (< 400 C )
Service Temperature -200 to +300°C
Cure Temperature 200 °C - 230 °C
Dielectric Constant 80 - 90 KV/mm
Surface Resistivity at 25 °C 0.5 X 1014 Ohm.cm
Volume Resistivity at 25 °C 2.9 X 1014 Ohm.cm
Tan s at 25 °C 0.004
Volume Resistivity at 200 °C 4.7 X 1012 Ohm.cm
Tan s at 200 °C 0.025
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CONTACT DETAILS
A-3, Sri Madhava Apartments, 2-2-23/41/4 & 5, Bank Colony, Bagh Amberpet,Hyderabad - 500013, Andhra Pradesh, India
Phone:91-40-27426059/65575981/27170642
Fax:91-40-27426059
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Key Personnel
Mr. K. Naveen Chandra (Joint Managing Director)
Mobile:+919849054231
  
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