The objective of this study is to obtain the rubber composition
of waste tyre crumbs using combined model-free and model-based
kinetics employing a sophisticated devolatilisation mechanism.
This paper consists of three parts. First the devolatilisation mechanism
and kinetics modelling approach is presented. Subsequently,
the model is validated with experimental results of binary and
ternary mixtures with known compositions of natural polyisoprene
rubber (NR), butadiene rubber (BR) and styrene-butadiene rubber
(SBR). Finally, the model is applied to three waste tyre crumbs with
different TT to PCT ratios.