M. D. Stelescu, A. Stefan, E. Manaila, M. Sonmez
Thursday 11 October 2018 by Libadmin2018


Sealing solutions play a crucial role in any space application. In this paper we present
the production and characterization of elastomeric composites for rubber seals used to
prevent unwanted loss of gas or liquid. We selected the following types of elastomers:
ethylene-propylene-diene terpolymers (EPDM), butyl rubber (IIR) and bromobutyl
rubber (Br-IIR) that have a good behaviour in the low temperature conditions of the
cosmic space. Two bipolymeric EPDM/IIR and EPDM/Br-IIR compounds were made,
containing other ingredients besides the two components. The blends were carried out in a Plasti-Corder Brabender mixer at 160–200°C. Plates required for tests were obtained by compression moulding using an electrically heated hydraulic press. The samples were analysed physico-mechanically for hardness, elasticity, 100% modulus, tensile strength, elongation at break. Regarding the field of application the samples were tested for fragility at cryogenic temperature (-70°C). The samples were macroscopically and microscopically analysed after impact and there was no sign of fragility for this temperature. Also there was no morphological altering of the surface after impact.

Keywords: elastomeric composites, rubber seals ,spaceapplication , physicomechanical properties, ethylene-propylene-diene terpolymers (EPDM), butyl rubber (IIR) andbromobutyl rubber

Home | Contact | Site Map | Site statistics | Visitors : 0 / 353063

Follow site activity en  Follow site activity SPACE TECHNOLOGIES AND PLANETARY SCIENCE  Follow site activity Papers SGEM2018   ?

CrossRef Member    Indexed in ISI Web Of Knowledge   Indexed in ISI Web Of Knowledge

© Copyright 2001 International Multidisciplinary Scientific GeoConference & EXPO SGEM. All Rights Reserved.

Creative Commons License