Mechanical Properties of Teflon® FEP Retrieved from the Hubble Space Telescope-Reference-Cited by-同舟云学术

Mechanical Properties of Teflon® FEP Retrieved from the Hubble Space Telescope

Published:2001-09 Issue:3 Volume:13 Page:S373-S390
ISSN:0954-0083
Container-title:High Performance Polymers
language:en
Short-container-title:High Performance Polymers

Author:

Dever Joyce A,de Groh Kim K¹,Messer Russell K²,McClendon Mark W,Viens Michael³,Wang L Len⁴,Gummow Jonathan D⁵

Affiliation:

1. NASA Glenn Research Center, Cleveland, OH 44135, USA

2. Cleveland State University, Cleveland, OH 44115, USA

3. NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA

4. Swales Aerospace, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA

5. Ohio Aerospace Institute, Cleveland, OH 44142, USA

Abstract

Teflon® FEP (fluorinated ethylene propylene) surfaces on the Hubble Space Telescope (HST) have experienced significant degradation in mechanical properties during nearly ten years of exposure in the low Earth orbit environment. This paper describes results of mechanical properties testing of Teflon® FEP materials exposed on HST for 9.7 years between launch and the third servicing mission (SM3A) and for 2.8 years between the second servicing mission (SM2) and SM3A. The results of tensile testing, bend testing and microscopic examination of crack morphology are described. The effects of post-retrieval heating and air compared with vacuum storage on the mechanical properties of the FEP surfaces are described as they significantly affect the interpretation of the results regarding the durability of FEP on HST. This paper provides comparisons of the properties of FEP surfaces retrieved during SM3A to previously reported results for FEP materials retrieved during the first servicing mission (SM1) and SM2. The environmental exposure conditions for the HST exposed materials are also described.

Publisher

SAGE Publications

Subject

Materials Chemistry,Organic Chemistry,Polymers and Plastics

Link

http://journals.sagepub.com/doi/pdf/10.1088/0954-0083/13/3/330

Reference8 articles.

1. [1] Zuby T M, de Groh K K and Smith D C 1995 Proc. Hubble Space Telescope Solar-Array Workshop ESA WPP-77, p 385-385

2. Hubble Space Telescope Metallized Teflon ® FEP thermal Control Materials: On-Orbit Degradation and Post-Retrieval Analysis

3. Insights into the Damage Mechanism of Teflon® FEP from the Hubble Space Telescope

4. Thermal Contributions to the Degradation of Teflon® FEP on the Hubble Space Telescope

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