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Institute for Problems in Mechanical Engineering
of the Russian Academy of Sciences

Institute for Problems in Mechanical Engineering of the Russian Academy of Sciences

The influence of brombutyl and divinylstyrene caoutchoucs, sevilen on the properties of seawater-resistant rubber

Autors:
E.N. Egorov, N.I. Kol’tsov ,
Pages:
143–149
Annotation:

The effect of bromobutyl caoutchouc BBK-232, sevilene 11808-340, divinylstyrene caoutchoucs DSSK-628V and SKMS-30ARK on the rheometric characteristics of the rubber mixture, physical, mechanical, operational and dynamic properties of rubber used for the manufacture of seawater-resistant products are studied. Along with the listed ingredients, the rubber mixture contained a vulcanizing agent - sulfur; vulcanization accelerators - 2,2'-dibenzothiazole disulfide, diphenylguanidine; vulcanization activators - zinc white, stearin; antioxidant - naphtham-2; fillers - technical carbons P 514 and P 803, natural chalk; polymer filler - trans-polynorbornene; softeners - rosin, petroleum polymer resin "Shinplast", factice; plasticizer - petroleum bitumen. It was found that rubber based on DSSK-628V and BBK-232 couutchoucs with their mass ratio of 75:25 not containing sevilen 11808-340 has better rheometric, physical-mechanical, dynamic properties and resistance to sea water.

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