Fig. 11. TGA of FKM and FKM/HNBR blend with varying composition: (a) 100% FKM, (b) 80/20 FKM/HNBR, (c) 60/40 FKM/HNBR, (d) 40/60 FKM/HNBR, (e) 20/80 FKM/HNBR, (f) 100% HNBR. Y.-G. Yeo et al. / Journal of Industrial and Engineering Chemistry 19 (2013) 1540–15481544 the phase separation and diversity of each raw material at 1000 _ in comparison with a blended specimen.