摘要
提出一种利用沥青红外光谱图测定石油沥青的方法,选用天然沥青、煤沥青、石油沥青3类、6个标号、8个品牌、16个试样进行红外光谱测试,得到红外光谱曲线并分析其图谱特征。结果表明:天然沥青和煤沥青的红外光谱图与石油沥青存在显著差异;不同品牌标号的石油沥青红外图谱存在五处明显公共红外特征吸收峰。因此,可利用石油沥青红外图谱吸收峰的共性测定未知沥青样品是否为石油沥青。
Natural asphalt, coal pitch and petroleum asphalt including Six specifications, eight brands, sixteen specimens were tested by Fourier infrared spectrometer to put forward a method of measuring the as- phalt and analyzing the characteristics through the infrared spectrum. The results showed that the characteristic peaks of natural asphalt and coal pitch were significantly different from petroleum asphalt. The IR spectrums of different brands and labels of petroleum asphalt were similar, and there were five obvious common characteris- tic peaks among them. Therefore, the IR spectra absorption peaks of the petroleum asphalt could be used to i- dentify whether the unknown asphalt samples were petroleum asphalt.
出处
《石油沥青》
2012年第4期9-14,共6页
Petroleum Asphalt
基金
新世纪教育部优秀人才计划(NCET-08-0750)
吉林省交通厅交通科技项目(2009-1-6)
关键词
石油沥青
红外光谱
特征峰
测定方法
petroleum pitch
infrared spectrum
characteristic peak
measuring method
