两种非金属材料在不同温度条件下CO脱气规律  

Regularities of Carbon Monoxide Outgassing from Two Nonmetallic Materials at Different Temperatures.

作　　者：张晓春[1] 魏永嘉 余秉良[1] 

机构地区：[1]航天医学工程研究所

出　　处：《航天医学与医学工程》1998年第3期198-201,共4页Space Medicine & Medical Engineering

摘　　要：为预防和控制航天器、飞机、潜艇等密闭环境中的ＣＯ污染，以两种常用的非金属材料３０－９３０４泡沫塑料、双面镀铝聚酯薄膜压敏胶带作为实验样品，密封于玻璃瓶中，在不同的温度条件下脱气，应用转化／气相色谱法在７０ｄ的时间内对脱出的ＣＯ量进行连续测试，并做曲线拟合与回归。结果表明：当脱气温度恒定时，脱气量与脱气时间的关系为“Ｓ”型曲线或指数曲线；当脱气时间恒定时，脱气量随温度升高呈指数增长；两种材料１００℃脱气１２ｈ脱出ＣＯ的量相当于５０℃脱气４５ｄ，材料的ＣＯ脱气存在等效原则。提示密闭条件下的非金属材料ＣＯ脱气有一定规律，探讨并利用这些规律有助于防止密闭环境ＣＯ的污染。To investigate the regularity of carbon monoxide outgassing from nonmetallic materials in air tight cabin,two nonmetallic materials was observed. 30-9304 foam plastics and aluminum-plated polyester adhesive film were sealed in airtight glass ampules,and outgassed for 70 days at four different temperatures.The outgassing CO was determined contiuously with transform/gas chromatography.Curve fitting and regression were used in data analysis.The results showed that:(1)when temperature was kept constant,the relation between the outgassed CO and outgassing time appeared to be a “s” shaped or exponented curve;(2)at a fixed time the amount of outgassed CO increased with temperature exponentially;(3)the amount of CO outgassed in 12 h at 100℃ from the two materials corresponds those for 45 d at 50℃,there is an iso-effect principle for CO outgassing.

关 键 词：非金属材料 一氧化碳 密闭舱 脱气规律 

分 类 号：R852.82[医药卫生—航空、航天与航海医学] V444.3[医药卫生—临床医学]