Rapid FTIR-ATR Method for the Quantification of Bitumen Property
TANG Jie-qiong1, MA Qing-feng2, SHI Jing-tao2, YUAN Hong-fu1*, SONG Chun-feng1, XIE Jin-chun1, LI Xiao-yu1
1. College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China 2. PetroChina Fuel Oil Company Limited Research Institute, Qingdao 266500, China
Abstract：The quality of bitumen directly affects road performance and road life. Traditional analytical methods for wax content, softening point and penetration of bitumen are tedious and time-consuming. A new fast method, with which the three properties can be determined at same time, is proposed in this paper. The spectra of 220 bitumen were collected and their wax content, softening point and penetration data were determined according to the standard JTJ052—2000. The quantitative calibration models for wax content, softening point and penetration were established using partial least squares (PLS), with SECV 0.13, 0.88, 3.18 and SEP 0.14, 1.06, 3.90, less than the reproducibility error stipulated in the standard method. Three samples were in random selected to test the repeatability, the results met the precision requirement of the standard method. With its advantages of better repeatability, fast, easy operation, the new method can be used as an alternative for the determination of wax content, softening point and penetration of bitumen.
Key words：Attenuated total reflection infrared spectroscopy;Bitumen;PLS
唐洁琼1，马庆丰2，时敬涛2，袁洪福1*，宋春风1，谢锦春1，李效玉1 . 衰减全反射红外光谱法快速检测沥青性质的研究 [J]. 光谱学与光谱分析, 2016, 36(03): 672-675.
TANG Jie-qiong1, MA Qing-feng2, SHI Jing-tao2, YUAN Hong-fu1*, SONG Chun-feng1, XIE Jin-chun1, LI Xiao-yu1 . Rapid FTIR-ATR Method for the Quantification of Bitumen Property . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2016, 36(03): 672-675.
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