低地球軌道環境下におけるPEEK膜材の機械特性変化(S65-2 宇宙用膜構造,S65 宇宙構造物)

概要

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This paper describes the changes of mechanical properties on PEEK after electron beam (EB), atomic oxygen (AO) and ultraviolet ray (UV) exposure under tensile stress. Tensile tests showed that mechanical properties after EB exposure were almost same as those of pristine PEEK. Radiation resistance of PEEK was so high that EB radiation gave no effect on material properties. Although test peace surface was removed by AO attack, tensile strengths after AO exposure were almost same as those of pristine sample. It was clarified that residual strength of PEEK sheet after AO exposure can be estimated by consideration of thickness reduction. PEEK was embrittled by crosslinking resulting from UV radiation. Applied tensile stress during exposure inhibited the crosslinking reaction.
社団法人日本機械学会の論文
2004-09-04