Effects of antioxidants on photodegradation of porous pressure-sensitive paint

Yasuhiro Egami, Keisuke Asai

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

The purpose of this paper is to propose a method to prevent photodegradation of porous Pressure-Sensitive Paint (AA-PSP) and to validate its effect by experiment. AA-PSP is a coating with dye molecules adsorbed on the surface of porous anodized alumina. Among various dye molecules, AA-PSP using Pyrene-Butyric Acid (PBA) has suitable characteristics for a fast responding PSP such as fast time response, high pressure sensitivity, high luminescent intensity and small temperature dependency. However, this PSP has poor photo-stability and is unable to be used for unsteady measurement in which excitation light is higher than steady tests. In this paper, we propose a method to reduce photodegradation of PBA-based AAPSP by using antioxidants. Three types of antioxidants (phenolic, sulfuric, and HALS) were applied on AAPSP and their effects on photo-stability were compared by the aging test conducted with one-hour long continuous exciting irradiation under argon or air. The results of these tests showed that HALS and sulfuric antioxidants were effective in reducing photodecomposition and photo-oxidation, respectively. On the contrary, phenolic antioxidant had no effect on photodegradation. Photodegradation rate of PBA-based AA-PSP can be adjusted by using a combination of HALS and sulfuric antioxidants.

本文言語English
ホスト出版物のタイトル22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference
出版社American Institute of Aeronautics and Astronautics Inc.
ISBN(印刷版)9781624101120
DOI
出版ステータスPublished - 2002
外部発表はい
イベント22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference 2002 - St. Louis, MO, United States
継続期間: 2002 6月 242002 6月 26

出版物シリーズ

名前22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference

Other

Other22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference 2002
国/地域United States
CitySt. Louis, MO
Period02/6/2402/6/26

ASJC Scopus subject areas

  • 航空宇宙工学

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