Creep Resistant Elastomer Formulations

Autor: D. F. Weir, George E. Rudd, Joseph F. Meier
Rok vydání: 1979
Předmět:
Zdroj: Rubber Chemistry and Technology. 52:50-73
ISSN: 1943-4804
0035-9475
DOI: 10.5254/1.3535208
Popis: Over 150 elastomer formulations of NR, DPNR, CR, IIR, AU, EU, EO, ECO, SBR, EPM, EPDM and a silicone rubber have been evaluated to identify the most creep resistant materials. Selected data are presented. Three of the best formulations (DPNR compound 15, CR compound 27 and EPDM compound 49) were found to give excellent creep performance extrapolating to less than 28% relative creep for a 15 year service life. As a result of a requirement for 15 year resistance to 25 pphm O3 concentration, EPDM formulation 49 was selected, and pads were molded and compression tested. Because of the O3 resistance of EPDM, there should not be a significant increase in creep rate.
Databáze: OpenAIRE