Crosslinking Density Characteristics of a Nanocomposite Elastomer

Nanocomposites elastomers are being developed in the field of nanomaterials as it has low weight and high properties compared to the conventional rubbers. Acrylonitrile butadiene rubber (NBR) is used in automobile parts due to its ability to resist oil. In this research, Carbon Black nanoparticles (CBnp) type FEF N550 was used to reinforce this rubber to reduce the swelling ratio. Therefore, physicochemical characteristics were investigated for five different samples of vulcanized CBnp/NBR nanocomposites with 0, 0.2, 0.6, 1.2 and 2.4 phr of CBnp using the solution mixing method. The homogeneity of these nanocomposites was evaluated by Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD). Furthermore, the influence of different contents of CBnp on the tensile strength was analyzed. The results showed that the crosslinking densities in the CBnp/NBR nanocomposites structure have been improved compared with the neat vulcanized NBR and the mechanical properties as well. t's an essential result which can employ it to prepare washers (rubber rings) resist against oils for several applications. (paper)