Technology : Resin

 

Plastics can be broadly classified into two categories:

  • Thermoplastics: Once cast solidified, they can be melted again and recast.
    Eg. Poly-Propylene, Poly-Vinyl-Chloride etc.

  • Thermosets: Once set or cast, they cannot be melted again. They form a Permanent Solid Structure.
    Eg. Unsaturated Polyester Resins, Epoxy Resin.

 

Unsaturated Polyester Resins are formed when organic dibasic acids or anhydrides are reacted with a glycol. The resultant ester undergoes co-polymerization in a self sustaining reaction forming Unsaturated Polyester and is then blended with an organic solvent.

When a peroxide is added to this liquid resin, the un-saturation breaks and interlinking chains are formed solidifying the polyester into a permanent structure.

Unlike Thermoplastics, Polyester Resins are usually reinforced with natural/synthetic fibres

Thus strength of the resultant object is not imparted by the bulk of the resin but rather by the mechanical properties of the reinforcement.

This Results in:

  • Lighter weight of the material
  • Superior Mechanical Properties (Comparable to steel and other metals)
  • Corrosion Resistance (imparted by the polymer)
  • Design Flexibility
  • Low tooling costs

 

APPLICATIONS

Manufacturing of broad range of products including pipes, tanks, light poles, Building Panels, boats, structural parts for automobiles, trains, aircrafts etc.