Mixing Extender oil , rubber process oil and natural rubber

Why Extnder oil and rubber process oil add to natural rubber ?

Rubber process oils and extender oils are added to natural and synthetic rubbers for a lot of reason , for example :

  • Reduce belending temperatures during processing and prevent scorching or burning of the rubber polymer when it is being ground to a powder.
  • Decrease the viscosity of the rubber and thereby facilitate milling, extruding and general workability of the rubber compound .
  • Reduce mill and calendar shrinkage, to aid the dispersion of fillers, and to modify the physical properties of the vulcanized and/or finished rubber compound.
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