Research Article

Innovative Application of Biopolymer Keratin as a Filler of Synthetic Acrylonitrile-Butadiene Rubber NBR

Figure 4

SEM images of (a) standard, (b) sample II (Mag—magnification ×25000). In (b), the arrows show the possible interactions between molecules of keratin and rubber or other elastomeric components of the mixture.
787269.fig.004a
(a)
787269.fig.004b
(b)