Preparation and Characterization of Lignosulfonate Intercalated Layered Double Hydroxides and Their Application in Improving Ultraviolet Aging Resistance for Bitumen
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2019年第2期
论文作者：何边阳 余剑英 HU Wei WAN Xiaodong WU Zhongkui
文章页码：446 - 452
摘 要：In order to develop economically anti-ultraviolet（UV） aging additives to bitumen and extend the comprehensive utilization of lignin materials, lignosulfonate（LS） was selected to intercalate into layered double hydroxides（LDHs）, then the LS intercalated LDHs（LS-LDHs） were applied to improve UV aging resistance of bitumen. With the characterization of X-ray diffraction（XRD）, Fourier transform infrared（FTIR） spectroscopy, chemical analysis and scanning electron microscopy（SEM）, LS was successfully intercalated into the galleries of LDHs. The ultraviolet and visible（UV-vis） absorbance curves showed LS-LDHs had excellent UV absorptive ability from 200 to 400 nm. Thermogravimetry and differential scanning calorimetry（TG-DSC） indicated LS-LDHs could have a good thermal stability during the processing of bitumen. Compared with the LDHs, the LS-LDHs exhibited better performance in UV aging resistance of bitumen.
何边阳1，余剑英1，HU Wei2，WAN Xiaodong2，WU Zhongkui1
1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology2. China Electric Power Research Institute
摘 要：In order to develop economically anti-ultraviolet（UV） aging additives to bitumen and extend the comprehensive utilization of lignin materials, lignosulfonate（LS） was selected to intercalate into layered double hydroxides（LDHs）, then the LS intercalated LDHs（LS-LDHs） were applied to improve UV aging resistance of bitumen. With the characterization of X-ray diffraction（XRD）, Fourier transform infrared（FTIR） spectroscopy, chemical analysis and scanning electron microscopy（SEM）, LS was successfully intercalated into the galleries of LDHs. The ultraviolet and visible（UV-vis） absorbance curves showed LS-LDHs had excellent UV absorptive ability from 200 to 400 nm. Thermogravimetry and differential scanning calorimetry（TG-DSC） indicated LS-LDHs could have a good thermal stability during the processing of bitumen. Compared with the LDHs, the LS-LDHs exhibited better performance in UV aging resistance of bitumen.
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