摘要
本文叙述了采用超临界流体精密分离和四组分分离方法对单家寺、胜利两种典型道路沥青的族组成分布的考察.借助薄膜烘箱试验、红外吸收光谱分析、元素分析和平均分子量测定,较细致地考察了两种沥青窄馏分薄膜烘箱试验前后化学组成、平均分子量及结构的变化.从沥青的化学组成、组分分布、抗热和空气作用能力等方面揭示了单家寺沥青优于胜利沥青的主要原因.
The distribution of composition for Shanjiasi and Shengli paving asphalts was investigated by supercritical fluid Destraction (SCFD) and constituent analysis. The change of physico-chemical properties of each narrow fraction obtained by SCFD from the two asphalts were studied by means of infrared spectrometry, elemental analysis and determination of mean molecular weight before and after thin film oven test. The main differences between Shanjiasi and Shengli asphalt lie in chemical composition, group constituent distribution, thermal and oxidation stability and colloidal property.
出处
《石油炼制》
CSCD
1990年第2期14-21,共8页
