Abstract
The influence of propylene, polyethylene and maleinized polyethylene on the characteristics of thermoplastic elastomers based on maleinized ethylene-propylene terpolymer rubber was investigated. As the amount of the added polyolefine is increased, the hardness, tensile strength and tear strength increase, and elasticity and elongation at break decrease. The resistance to swelling in toluene and resistance to 50 % nitric acid and 40 % sodium hydroxide are also increased with the increase in the amount of the added polyolefine. The blends containing maleinized PE show higher characteristics than those with PE as such. The rheologic characteristics of the above mentioned blends were studied and compared. The thermoplastic ionic elastomers based on maleinized EPDM and polyolefines can be used in obtaining some materials with specific characteristics (high hardness, tensile strength, elasticity, resistance to acids and alkalis, resistance to swelling in toluene etc.). Key words: polyolefines, maleinized EPDM, thermoplastic ionic elastomer