INFLUENCE OF SYNTHETIC FUEL ON NITRILE RUBBERS USED IN AVIATION

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Transport Problems

Silesian University of Technology

Subject: Economics, Transportation, Transportation Science & Technology

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VOLUME 15 , ISSUE 3 (September 2020) > List of articles

INFLUENCE OF SYNTHETIC FUEL ON NITRILE RUBBERS USED IN AVIATION

Tomasz BIAŁECKI * / Bartosz GAWRON / Bolesław GIEMZA / Jadwiga GŁĄB

Keywords : nitrile rubber; synthetic fuel; HEFA; seal swelling

Citation Information : Transport Problems. Volume 15, Issue 3, Pages 29-41, DOI: https://doi.org/10.21307/tp-2020-031

License : (CC BY 4.0)

Received Date : 05-March-2019 / Accepted: 26-August-2020 / Published Online: 05-September-2020

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ABSTRACT

This paper investigates the influence of alternative fuel on selected butadiene–acrylonitrile rubbers used as seals in engine and fuel supply systems of postSoviet aircrafts. The conventional fuel Jet A-1, the synthetic blending component from hydrotreated esters and fatty acids (HEFA) and its blend were interacted with the sample nitrile rubbers. HEFA technology has been approved by ASTM D7655 for use in turbine aircraft engines. The effect was evaluated on the basis of changes in the nitrile rubber’s volume, mass and hardness. It has been confirmed that the synthetic component containing no aromatic hydrocarbons has a different effect on nitrile rubber than the conventional fuel. When the nitrile rubbers were subjected to microscopic observations, the most frequently observed effect was washing out or dissolving of nitrile rubber surface fragments.

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