详细信息
沥青硫化改性生成的硫化物类型及其反应机理 ( EI收录)
Determination of the Main Sulfur-Containing Compounds in Sulfide Asphalt and the Mechanism of Asphalt Sulfidation
文献类型:期刊文献
中文题名:沥青硫化改性生成的硫化物类型及其反应机理
英文题名:Determination of the Main Sulfur-Containing Compounds in Sulfide Asphalt and the Mechanism of Asphalt Sulfidation
作者:程国香[1];沈本贤[1];李海彬[1];郝金辉[1];凌昊[1]
机构:[1]华东理工大学化学工程联合国家重点实验室,上海200237
年份:2008
卷号:34
期号:3
起止页码:319
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;EI(收录号:20083011399754);Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:硫化沥青;硫化产物;反应机理;改性;二硫化物;亚砜
外文关键词:sulfured asphalt; sulfide; mechanism; modification; disulfide; sulfoxide
摘要:采用X射线光电子能谱(XPS)、凝胶色谱和氢核磁共振技术(1H-NMR)并结合电位滴定等方法,对基质沥青和硫化沥青中主要的硫化物类型进行了定性定量分析,并探究了沥青硫化交联反应机理。结果表明:基质沥青中的主要硫化物是亚砜,沥青硫化的主要产物是二硫化物和亚砜,硫主要取代沥青中β位上的氢。
X-ray photoelectron spectroscopy(XPS), gel chromatograph, 1H-NMR, and electrolytic titration technique were employed to identify various types of sulfur-containing compounds and to determine their contents in sulfured asphalt. The sulfidation mechanism was discussed. The results show that the main products of asphalt sulfidation are disulfides and sulfoxides, and sulfur is mainly substituted for the β-hydrogen in asphalt during the sulfidation.
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