人工气候试验装置对自然气候模拟性的评价方法

STUDY ON EVALUATING SIMULATEABILITY OF ARTIFICIAL WEATHERING DEVICES TO CLIMATIC PHENOMENA FOUND ON EARTH

用红外光谱法跟踪聚乙烯标准参考片气候曝露过程的分子结构变化，发现其羰基生成与链端乙烯基的增长线性相关，但斜率ｔｇα随曝露环境而变，称α为气象综合作用角。研究证实，这个描写曝露膜分子结构变化的参数能够用来表征聚合物曝露环境的气候特性和评价人工气候箱对自然气候的模拟性。在统计分析广州３０年地面气象记录的基础上，评议市售气候箱仿造自然气候的能力与局限。建议到阳光下试验，经济又可靠。

By 1R spectroscopy it was found that there is a linear correlation between carbonyl formation and terminal vinyl growth of standard referentical film of PE during natural of artificial weathering trial. Its slope-tgα is dependend on meteoric features found on exposed envirenment.We called the α after angle characterized action of meteoric features and quantitates the changes in chemical constitution of exposed film.Such term may be characterized the climatic phenomena of exposed envirenment as well as evaluated the simulateability of artificial weathering devices to climatic phenomena found on earth.Based on the statistical data of meteorological record during 1961 to 1990 at Guangzhou it is apparent that the simulateability of commerical artificial weathering devices must be looking forward to advance and result in a suggestion that take precedence to test everything under the sun.