Wire & Cables
Cables used in buildings, automotive and power networks are increasingly required to be Halogen Free Flame Retardant (HFFR).
HFFR compound consists of polyolefin matrix (Evatane® or Lotryl® resins), hydrated mineral filler (ATH, MDH) and coupling agent.
Lotader® 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 Lotader® as a coupling agent between the polyolefin and filler.
Lotader® resins using as coupling agent increase the tensile strength and elongation at break.
Lotader® is unmatched to improve air/water ageing and reduce compound viscosity.
Arkema has also a complementary range of MAH-grafted polyolefin coupling agents sold under the name Orevac®.