采用旋转黏度计测定了含有不同比例呋喃树脂的煤沥青的表观黏度.考察了呋喃树脂对煤沥青表观黏度、残炭率及软化点的影响.同时,采用扫描电镜(SEM)研究了添加呋喃树脂后煤沥青的表面形貌.结果表明,添加质量分数为3.6%～9.0%的呋喃树脂使煤沥青在达到相同黏度值时温度下降5℃～15℃,而残炭率不下降;由于呋喃树脂使煤沥青分子隔开从而改善了煤沥青的流动性能;另外加入适量的呋喃树脂可降低煤沥青的黏流活化能,有利于煤沥青在较宽温度范围内进行工艺操作.
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