The influence of ozone on the property of envelop materials of near space vehicle

Author

Guochang Lin ; Huifeng Tan

Author_Institution

Post-doctoral Res. Center in Mater. Sci. & Eng., Harbin Inst. of Technol., Harbin, China

Volume

3

fYear

2011

fDate

12-14 Aug. 2011

Firstpage

1413

Lastpage

1416

Abstract

The ozone aging of PE-EVOH (ethylene-vinyl alcohol copolymer) films, which is a kind of envelop material of near space vehicle, is studied in the paper. The ozone aging test of PE-EVOH films was performed in an ozone aging environmental apparatus with 600pphm ozone concentration. The mechanical property variation of the PE-EVOH film after ozone aging was investigated by mechanical tensile test and the results show that tensile strength of the PE-EVOH films decreases as the ozone aging time increases. The aging mechanism of the PE-EVOH film was analyzed using FTIR spectra analysis and atomic force microscopy (AFM) images. The results reveal that mechanical and physical reactions were occurred between the PE-EVOH film and ozone, which leads to the decline of mechanical property of the PE-EVOH film.

Keywords

Fourier transform spectra; Young´s modulus; ageing; atomic force microscopy; infrared spectra; ozone; polymer blends; polymer films; space vehicles; tensile strength; FTIR spectra analysis; Young modulus; atomic force microscopy; envelop materials; ethylene-vinyl alcohol copolymer films; mechanical tensile test; near space vehicle; ozone aging; physical reactions; tensile strength; Aging; Films; Mechanical factors; Space vehicles; Surface morphology; Surface roughness; AFM; FTIR spectra; PE-EVOH; ozone aging; tensile strength;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on

Conference_Location

Harbin, Heilongjiang, China

Print_ISBN

978-1-61284-087-1

Type

conf

DOI

10.1109/EMEIT.2011.6022992

Filename

6022992