5. Chlorosulfonated Rubber-Based Nanoblends: Preparation, Characterization and Applications

In this chapter, the preparation, characterization, and applications of chlorosulphonated polyethylene (CSM) rubber based nano blends have been investigated. CSM rubber based nanoblend compounds have been prepared on a laboratory-size (300x600 mm) two-roll mixing mill maintained at 40±5 °C. Curing was performed at 160 °C up to the optimum cure time (t ), which was determined from the rheograph using a Monsanto R-100 model. The mechanical properties, namely tensile strength (TS), tensile modulus at 100 % and 300 % elongation (M100 and M300), elongation at break (Eb%) and hardness have been followed up as a function of nano fillers and irradiation dose (dose rate of 10 kGy h⁻¹ and total absorbed dose of 100, 200, 300, and 400 kGy) as well as blend composition. Cross-linking density has been determined using swelling measurements. A scanning electron microscope has been used for morphological study. Thermal stability of samples has been determined using thermogravimetric (TG) measurements. Dynamical mechanical properties were studied on a mechanical analyzer. The assignment of the principal bands in chlorosulphonated polyethylene (CSM) rubber based nano blends has been carried out by FTIR ATR spectra. Elastomeric materials based on the chlorosulfonated polyethylene (CSM) rubber nano blend have a quite good crack resistance, wet grip, and weather resistance. On the other hand, they show a good resistance to interactions with alcohol’s as well as strong acids and bases. This type of material also exhibits excellent ultraviolet light and oxygen stability.