Siberian Federal University

The influence of Sevilen 11808–340 on the rheometric parameters of the rubber compound, physical-mechanical and operational properties of rubber used for the manufacture of products used in sea water has been studied. The rubber compound contained: divinylstyrene coutchouc (SKMS-30 ARK or DSSC-628V) and chlorobutyl coutchouc KhBK-139, vulcanizing agent – sulfur; vulcanization accelerators – dibenzothiazol disulphide, diphenylguanidine; vulcanization activators – zinc white, stearic acid; antioxidant – naphtham-2; fillers – carbons black P 514 and P 803, natural chalk, trans- polynorbornene; softeners – rosin, oil-polymer resin “Shinplast”, factis; plasticizers – petroleum bitumen and industrial oil I-12A. Sevilen 11808–340 was introduced into the rubber compound in an amount from 5.0 to 15.0 parts by mass per 100.0 parts by mass of coutchoucs. The rubber compound was prepared on laboratory rollers LB320 160/160 at a roller temperature of 60–70 °C. The vulcanization parameters of the rubber compound were studied using a MDR3000 Basic rheometer from Mon Tech at 150 °C for 40 minutes in accordance with ASTM D2084–79. Standard samples for determining physical and mechanical properties were vulcanized at a temperature of 150 °C for 30 minutes in a vulcanization press type P-V-100–3RT-2-PCD. The main characteristics of the vulcanizates were determined according to the standards in force in the rubber industry. It has been established that rubber containing 5.0 parts by mass of Sevilen 11808–340 has better physical and mechanical properties and resistance to sea water