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| Investigation of Methanol Releasing Regularities from Bakelite under Different Temperature |
| Received:June 29, 2011 Revised:October 15, 2011 |
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| DOI： |
| KeyWord:release nonmetallic material methanol |
| Author | Institution |
| GUO Li-hua |
1. Beijing University of Chemical Technology， Beijing ， China;2. China Astronaut Research and Training Center， Beijing ， China |
| HE Xin-xing |
China Astronaut Research and Training Center， Beijing ， China |
| DING Jun-ping |
China Astronaut Research and Training Center， Beijing ， China |
| XV Guo-xin |
China Astronaut Research and Training Center， Beijing ， China |
| YIN Liang |
Beijing University of Chemical Technology， Beijing ， China |
| QI Xin |
Beijing University of Chemical Technology， Beijing ， China |
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| Abstract: |
| Bakelite samples were sealed in Tedlar gas sampling bag for 30 days under different temperature. The concentration of the released methanol was determined continuously with gas chromatography-mass spectrometry. Curve fitting and regression were used in data analysis. The results showed that under 40 ℃, the releasing amount increased first and then; under 50 ℃ and 65 ℃ , the releasing amount decreased with time. It was concluded that the regularity of contamination generated by nonmetallic materials was affected by the concentration of the substance and production model of the material. The purpose of this research was to provide reference for contamination control of close environment, such as spacecraft, plane, and submarine. |
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