用ULTRAPYC 1200e密度仪测定硬质PU泡沫闭孔率

Determination of Closed Cell Content of Rigid Polyurethane Foam Using ULTRAPYC 1200e

研究了ULTRAPYC 1200e型全自动密度仪测定硬质PU泡沫的原理和方法,并与GB 10799-89进行了比较,两者原理一致,结果吻合,但ULTRAPYC 1200e型全自动密度仪自动化程度高、操作简便、重现性好、测定快速准确、且只需一个试样即可完成整个测定过程。

The principal and the precision of the method of the closed cells content for rigid PU foam using the automatic density analyzer ULTRAPYC 1200e were introduced. The method was compared with GB 10799 -89. It showed that the results from the two methods were coherent. But the automatic density analyzer had some advantages with high automatization, simple operation, good reappearance of the data, testing rapidly and accurately, and the whole testingprocess was finished with only one sample.