Effects of Atomic Oxygen and Ultraviolet in Low Earth Orbit on Low Surface Energy Polymer Film

被引：7

作者：

Wang Xiaolong ^{[1
]}

Zhou Feng ^{[1
]}

Liu Weimin ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2011年 / 120卷 / 01期

关键词：

atomic oxygen; ultraviolet; low earth orbit; low surface energy; fluoropolymer; MOLECULAR DESIGN REQUIREMENTS; ORGANIZATION PHENOMENA; ADHESION MEASUREMENTS; SPACE ENVIRONMENT; EXPOSURE; COATINGS; EROSION; FORCE;

D O I：

10.1002/app.33132

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Effects of atomic oxygen (AO) and ultraviolet (UV) on a polymer film with surface energy of 8.0 mJ m(-2) derived from poly(1H, 1H-perfluorooctyl methylacrylate) were investigated by contact angle measurements, X-ray photoelectron spectroscopy, and atomic force microscope. The film was exposed to AO with a flux of 6.73 x 10(15) atoms cm(-2) s(-1) and UV with intensity of 15.8 mW cm(-2) at wavelength of 200-450 nm, respectively. It is found that AO and UV irradiation resulted in the reduction of film thickness, change of wettability, and increase of surface energy, and AO exhibited more serious effects than UV on the fluorinated polymer film. Reduced rate of thickness of the film was almost proportional to the AO exposure time. After exposed to AO and UV irradiation, the surface energy of the film increased to 17.3 mJ m(-2) and 11.0 mJ m(-2), respectively. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 329-334, 2011

引用

页码：329 / 334

页数：6

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