Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 71, Issue -, Pages 116-125Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2015.01.008
Keywords
Nano-structures; Polymer-matrix composites (PMCs); Mechanical properties; Atomic oxygen
Funding
- National 973 Program of China [2014CB931802]
- National Natural Science Foundation of China [51103003, 51273007]
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Materials used in low earth orbit are exposed to damaging atomic oxygen (AO). AO exposure behaviors of carbon nanotube (CNT) film and CNT/epoxy composite film were evaluated when exposed to a nominal AO fluence of about 3.0 x 10(20) atoms/cm(2). Properties of the films before and after AO exposure were evaluated by mass loss, Raman spectroscopy, X-ray photoelectron spectroscopy, tensile and electrical conductivity tests. Results show similar mass loss and different surface erosion for two kinds of films. CNT bundles collapse with the emergence of a tight arrangement of particles, and porous CNT film has more serious interior CNT erosion than dense CNT/epoxy composite film. Decreases of tensile strength and electrical conductivities are seen. (C) 2015 Elsevier Ltd. All rights reserved.
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