【摘要】 采用4种具有不同软化点和H/C原子比的C₉石油树脂（PR）与芳烃油作为相容剂,SBS作为改性剂,制备高黏度改性沥青（HVA）。固定SBS的含量、相容剂（芳烃油和石油树脂）的总含量,考察相容剂中油和树脂的比例变化对高黏度改性沥青性质的影响,并研究了C₉石油树脂的性质对高黏度改性沥青的影响。结果表明:相容剂中C₉石油树脂质量分数超过6%时,高黏度改性沥青的低温性能较差;软化点高的C₉石油树脂更有利于提高改性沥青的60℃零剪切黏度,降低针入度;H/C原子比高的C₉石油树脂与SBS之间具有更好的相容性,可以增强SBS形成的网状结构,从而增强沥青的路用性能;当软化点和H/C原子比高的3、4号树脂（PR3、PR4）的质量分数为4%时制备出的高黏度改性沥青的性能更佳。更多还原

【Abstract】 High-viscosity asphalt（HVA）was prepared by adding SBS modifier,compatibilizer which contains aromatic oil,and one of four C₉-petroleum resins（PR）which have different soft points and H/C atom ratios.At specific SBS and total compatibilizer contents,the effects of oil and resin ratio on the properties of HVA were investigated.In addition,effects of C₉ PR properties on the performance of HVA were also studied.Experimental results suggest that the HVA performance degrades significantly at low temperature when C₉ PR content in the compatibilizer is over 6%.It is also observed that C₉ PR with high soft point could increase 60 ℃ zero shearing viscosity（ZSV）,and decrease penetration point.The application performance of HVA can be improved due to the enhanced SBS network structure resulted from a good compatibility between SBS and C₉ PR with high H/C atom ratios.HVAs prepared with 4% PR3 or PR4（both of them have high soft point and H/C atomic ratio）have a relatively good application performance.更多还原