摘要
以浓硫酸为磺化剂对中温煤沥青进行磺化改性。采用硫酸钡沉淀法测其磺化度。通过考察反应温度、反应时间和磺化比对磺化度的影响并通过正交实验获得最佳工艺参数：反应温度70℃，反应时间5h，磺化比1．8，该条件下合成产物的磺化度达13．28％，水溶物含量为98％。
In this paper, sulfonated asphalt products was prepared by using coal tar pitch as raw materials, and concentrated sulfuric acid as sulfonating agent. The effects of reaction temperature, reaction time and sulfonation ratio on the influence of the sulfonation degree by orthogonal design method. The optimized conditions were： reacting for 5h at 70 ℃, sulfonation ratio 1.8. Under this condition, the sulfonated degree is up to 13.28% and content of water--soluble reached 98.8%.
出处
《中国材料科技与设备》
2014年第6期34-35,共2页
Chinese Materials Science Technology & Equipment
基金
辽宁科技大学创新创业资助项目（第三届）
关键词
中温煤沥青
磺化剂
磺化度
正交设计
磺化煤沥青
Medium temperature coal tar
Sulfona ting agent
ulfonated degree
Orthogonal design
Sulfonated coal tar
