and the resilience is related to the flexibility of the molecular chains; the more flexible the molecular chains, the better
the resilience. The incorporation of ALK into the silica-filled
NR compound enhanced the resilience of the silica-filled NR
vulcanisates. Again, this can be attributed to the functions of
the ALK as an accelerator and filler dispersant which enhances
the total crosslink density, and as a plasticizer which
improves the flexibility of the filled rubber chains.