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技术文章您当前的位置:皇冠足彩app下载 > 技术文章 > 紫外老化试验箱两种暴露方式

紫外老化试验箱两种暴露方式

日期:2019-11-25浏览:143次

紫外老化试验箱皇冠足彩app下载做老化试验时,试样表面温度是一个重要的暴露参数,一般,温度高会使聚合物降解过程加快,允许的试验温度应根据受试材料和老化性能评价指标而定。荧光紫外灯发出的红外线比氙灯和碳弧灯少,试样表面的加热作用基本上是由热空气对流形成的。因此,黑板温度计、黑标准温度计、试样表面和暴露室空气之间的温差是很小的。

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