| 摘要: |
| 为解决废旧轿车轮胎胶粉难利用和螺杆高温挤出脱硫胶粉能耗高、污染大的问题，采用废机油活化辅以螺杆低温挤出的工艺制备脱硫胶粉，研究活化工艺、挤出温度、废旧轿车轮胎胶粉掺量对改性沥青脱硫程度及高低温流变性能的影响.结果表明：废机油活化能显著提高废旧轿车轮胎胶粉的溶胶含量，废旧轿车轮胎胶粉的挤出温度和掺量能显著影响改性沥青的性能，废旧轿车轮胎胶粉挤出温度为180℃的改性沥青高低温流变性能最优，加工性能良好，且废旧轿车轮胎胶粉最大掺量可达30%（质量分数）. |
| 关键词: 废机油 低温挤出 挤出温度 胶粉掺量 流变性能 |
| DOI：103969/j.issn.1007 9629201802024 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目（51568064） |
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| Rheological Properties of the Asphalt Modified by the ActivatedRubber in the Presence of Waste Engine Oil |
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ZHANG Guangtai1, LI Yue1, CHEN Liuzhuo1, YE Fen1, WANG Shifeng2
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1.Civil Construction College, Xinjiang University, Urumqi 830047, China;2.Research Institute of Polymer Materials, Shanghai Jiaotong University, Shanghai 200240, China
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| Abstract: |
| In order to solve the problems of passenger car tires application and high energy consumption and pollution when used twin screw extruder to break the cross link network of rubber in high temperature, the activated rubber was prepared with the waste engine oil by twin screw extrusion. The effect of regeneration process, extruding temperature and rubber dosage on desulfurization degree, rheological properties of crumb rubber were investigated. The results show that waste oil significantly improve the sol content of crumb rubber, and the extruding temperature and rubber dosage have great effect on the performance of crumb rubber modified asphalt. When the extruding temperature is 180℃, crumb rubber modified asphalt has the best high and low rheological properties and good workability as well. The highest rubber dosage is 30% for the balanced properties. |
| Key words: waste engine oil low temperature extruding extruding temperature rubber dosage rheological property |
