| abstract |
A rubber compound based on propylene-oxide rubber SKPO, including sulfur, stearic acid, zinc oxide, thiuram disulphide, carbon black P-803. The compound is characterized by replacement of 2-mercaptobenzothiazole (kaptax), as well as fluoroplastic F-4, with dibenzothiazyl disulfide (altax), phenyl-β-naphthylamine (neozone D), dibutoxyethyl adipate, and natural bentonites. Use of a rubber compound with the proposed composition increases the service life of rubber seals during their operation in sealing devices, due to higher frost resistance and a lower residual compressive strain value. Also, the compound can be manufactured by a simpler method compared to modern production technology, eliminating the stage of joint mechanical activation of zeolite and dibutyl phthalate. |