Abstract
Properties of mastics on the basis of polychloroprene and ethylene-propylene diene rubber SKEPT-40 designed for the sealing of edges of outer wall panels are considered. Quinol ether was used as a curing agent. The stability of vulcanizates in an ozone-air atmosphere is studied by the stress relaxation method, and it is established that the rate of stress relaxation decreases at a SKEPT content above 15%. Molecular dynamics in vulcanizates is investigated by electron paramagnetic resonance. It is revealed that the use of polychloroprene and an ethylene-propylene diene rubber blend in a 70: 30 ratio makes it possible to prepare sealing coatings with high service characteristics.
Published Version
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