M. L. Davydova, N. V. Shadrinov, A. F. Fedorova, A. R. Khaldeeva, M. D. Sokolova
{"title":"Studying the Stability of Ethylene—Propylene Rubbers under Thermocycling in Different Working Media","authors":"M. L. Davydova, N. V. Shadrinov, A. F. Fedorova, A. R. Khaldeeva, M. D. Sokolova","doi":"10.1134/S1995421224702186","DOIUrl":null,"url":null,"abstract":"<p>The change in the properties of ethylene–propylene SKEPT-40- and SKEPT-50-based rubbers under thermocycling in air and a medium of DOT-4 brake fluid within a temperature range from –50 to +50°C has been studied. It has been shown that SKEPT-40-based rubber specimens have a higher degree of retaining the strength characteristics, whereas SKEPT-50-based specimens have a higher degree of retaining the hardness and relative elongation. The frost resistance of ethylene–propylene rubbers in DOT-4 medium is much better preserved as compare to exposure in the air medium due to their good stability in this medium and its plasticizing effect. The contribution of ultra-high-molecular-weight polyethylene (UHMWP) to the stabilization of both the physicomechanical properties and frost resistance of ethylene–propylene rubbers has been established.</p>","PeriodicalId":741,"journal":{"name":"Polymer Science, Series D","volume":"18 1","pages":"239 - 244"},"PeriodicalIF":0.5800,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Science, Series D","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1134/S1995421224702186","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Materials Science","Score":null,"Total":0}
引用次数: 0
Abstract
The change in the properties of ethylene–propylene SKEPT-40- and SKEPT-50-based rubbers under thermocycling in air and a medium of DOT-4 brake fluid within a temperature range from –50 to +50°C has been studied. It has been shown that SKEPT-40-based rubber specimens have a higher degree of retaining the strength characteristics, whereas SKEPT-50-based specimens have a higher degree of retaining the hardness and relative elongation. The frost resistance of ethylene–propylene rubbers in DOT-4 medium is much better preserved as compare to exposure in the air medium due to their good stability in this medium and its plasticizing effect. The contribution of ultra-high-molecular-weight polyethylene (UHMWP) to the stabilization of both the physicomechanical properties and frost resistance of ethylene–propylene rubbers has been established.
期刊介绍:
Polymer Science, Series D publishes useful description of engineering developments that are related to the preparation and application of glues, compounds, sealing materials, and binding agents, articles on the adhesion theory, prediction of the strength of adhesive joints, methods for the control of their properties, synthesis, and methods of structural modeling of glued joints and constructions, original articles with new scientific results, analytical reviews of the modern state in the field.