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Cables

HFFR compounds

HFFR compound consists of polyolefin matrix (Evatane® or Lotryl® resins), hydrated mineral filler (ATH, MDH) and coupling agent.

Orevac® is used as coupling agent:

The selection of the appropriate coupling agent is a key issue for HFFR compounds:

 

High levels of flame retardant additives affect the polymer matrix, which leads to low mechanical performance. This can be overcome by introducing Orevac® as a coupling agent between the polyolefin and filler.

 

Orevac® resins used as coupling agent increase tensile strength and elongation at break.

Orevac®  resins improve air/water ageing and reduce compound viscosity.

 

HFFR standard formulations

Polyolefins + Filler + Coupling agent
   
Filler acceptance   Flame resistant   Cohesion
   

Evatane®

Lotryl®

  ATH and MDH  

Orevac®

Lotader®

Recommended Orevac® grades:
  18341 18507 OE808 18302N CA100
  LDPE HDPE VLDPE LLDPE PP
  General purpose XL automotive Flexible cable XL solar HFFR PP based

Arkema has also a complementary range of MAH terpolymers coupling agents sold under the name Lotader®

Grades are chosen upon the targeted properties.