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基于苯甲醛交联剂的煤直接液化残渣改性石油沥青

陈静 ,  孙鸣 ,  代晓敏 ,  姚一 ,  刘媛媛 ,  贺敏 ,  吕波 ,  赵香龙 ,  马晓迅

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引用本文: 陈静, 孙鸣, 代晓敏, 姚一, 刘媛媛, 贺敏, 吕波, 赵香龙, 马晓迅. 基于苯甲醛交联剂的煤直接液化残渣改性石油沥青[J]. 燃料化学学报, 2015, 43(9): 1052-1060. shu
Citation:  CHEN Jing, SUN Ming, DAI Xiao-min, YAO Yi, LIU Yuan-yuan, HE Min, LV Bo, ZHAO Xiang-long, MA Xiao-xun. Asphalt modification with direct coal liquefaction residue based on benzaldehyde crosslinking agent[J]. Journal of Fuel Chemistry and Technology, 2015, 43(9): 1052-1060. shu

基于苯甲醛交联剂的煤直接液化残渣改性石油沥青

    通讯作者: 马晓迅,Tel:029-88302633;E-mail:maxym@nwu.edu.cn。
  • 基金项目:

    国家科技部国际科技合作专项(S2013GR0064) (S2013GR0064)

    国家高技术研究发展计划(863计划,2011AA05A2021) (863计划,2011AA05A2021)

    国家自然科学基金(21406178) (21406178)

    高等学校博士学科点专项科研基金(20116101110019) (20116101110019)

    陕西省自然科学基础研究计划(2014JQ2070) (2014JQ2070)

    西北大学科学研究基金(NG14029)。 (NG14029)

摘要: 以苯甲醛为交联剂,采用煤直接液化残渣的四氢呋喃萃取物(THFS)对石油沥青进行了改性。考察了THFS、交联剂的掺杂量以及掺混温度对改性沥青性能的影响。研究表明,当THFS的掺杂量为4 %,掺混温度为170 ℃时改性效果最佳,而且苯甲醛作为交联剂加入可使沥青改性效果更佳。利用热重-傅里叶红外光谱联用仪(TG-FTIR)、傅里叶变换红外光谱仪(FT-IR)和荧光显微镜对改性沥青进行了表征,结果表明,添加了苯甲醛的改性沥青的失重残余率较其他沥青略有提高;苯甲醛交联的改性沥青在热解过程中释放的CH4含量减少且释放温度有所提高;改性沥青在2 924 cm-1和2 854 cm-1处的脂肪族-CH2-的伸缩振动和表征苯环位取代872、810和746 cm-1处吸收峰的透射率均有较大幅度的提高,并在1 060 cm-1处出现C-O-C伸缩振动峰,以及荧光显微镜图像中出现新的改性粒子,表明交联剂的添加使THFS和基质沥青发生了缩合反应。

English

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  • 收稿日期:  2015-02-05
  • 网络出版日期:  2015-04-01
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