波谱学杂志 ›› 2017, Vol. 34 ›› Issue (3): 323-328.doi: 10.11938/cjmr20162546

• 研究论文 • 上一篇    下一篇

1H NMR法对改性沥青中SBS含量精确测试的研究

赵红波1,2, 柴晓飞1,2, 王岳华1,2, 史会兵3, 张锐1, 董昭苹1, 韩立霞1   

  1. 1. 黄河三角洲京博化工研究院有限公司, 山东 滨州 256500;
    2. 山东安特检测有限公司, 山东 滨州 256500;
    3. 山东京博石油化工有限公司, 山东 滨州 256500
  • 收稿日期:2016-09-10 修回日期:2017-07-17 出版日期:2017-09-05 发布日期:2017-09-05
  • 通讯作者: 赵红波,Tel:18506497399,E-mail:zhaohongbodephoto@163.com. E-mail:zhaohongbodephoto@163.com

Analysis of Styrene-Butadiene-Styrene (SBS) Content in Modified Asphalt with 1H NMR Spectroscopy

ZHAO Hong-bo1,2, CHAI Xiao-fei1,2, WANG Yue-hua1,2, SHI Hui-bing3, ZHANG Rui1, DONG Zhao-ping1, HAN Li-xia1   

  1. 1. Chambroad Chemical Industry Research Institute Co., Ltd., Binzhou 256500, China;
    2. Shandong Ante Testing Co., Ltd., Binzhou 256500, China;
    3. Shandong Chambroad Petrochemicals Co., Ltd., Binzhou 256500, China
  • Received:2016-09-10 Revised:2017-07-17 Online:2017-09-05 Published:2017-09-05

摘要: 建立了核磁共振氢谱(1H NMR)法测定改性沥青中聚苯乙烯-聚丁二烯-聚苯乙烯嵌段式聚合物(SBS)精确含量的方法.首先,建立了改性沥青1H NMR谱中SBS特征峰和基质沥青峰的积分面积之比与SBS实际掺量的线性关系,结果表明两者间线性关系良好;其次,验证了该方法的准确度和精确度,并证实该方法的准确度高于傅里叶变换红外光谱(FTIR)法;最后利用此方法评价了改性沥青混匀装置的好坏.SBS含量的测定,目前还没有建立国家测量标准,也没有利用NMR进行定量测试的相关报道.本研究结果表明NMR技术可用于快速和精确测试SBS改性沥青中SBS含量,对实际应用有一定指导意义.

关键词: SBS, 核磁共振氢谱(1H NMR), 改性沥青, 定量分析

Abstract: A 1H nuclear magnetic resonance (1H NMR) method for quantitative analysis of the content of styrene-butadienestyrene (SBS) blocks in polymer-modified asphalt was proposed. 1H NMR spectra were acquired from multiple samples of modified asphalt with known SBS content. The integral of SBS peaks was calculated and normalized to yield SBS content. The results obtained with 1H NMR were compared to those obtained with Fourier transform infrared spectroscopy (FTIR). A good linearity for the calibration curve (R2=0.999 9) was obtained, indicative of excellent reproducibility and accuracy. The measurement errors were found to be larger with FTIR than with 1H NMR.

Key words: styrene-butadiene-styrene (SBS), 1H NMR, polymer-modified asphalt, quantitative analysis

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