废机油活化轿车胎胶粉的微观特性及改性沥青性能  

Microscopic Properties of Activated Rubber in the Presence of Waste Engine Oil and Road Performance in Asphalt

作　　者：张广泰[1] 李悦[1] 陈柳灼 叶奋[1,2] 王仕峰[3] 

机构地区：[1]新疆大学建筑工程学院,乌鲁木齐830047 [2]同济大学道路与交通工程教育部重点实验室,上海201804 [3]上海交通大学高分子材料研究所,上海200240

出　　处：《科学技术与工程》2017年第30期314-319,共6页Science Technology and Engineering

基　　金：国家自然科学基金(51568064)资助

摘　　要：针对挤出温度过高带来的再生胶性能损失严重和污染能耗问题,在挤出脱硫前采用废机油预先活化胶粉,以达到既能保证再生胶的脱硫效果,又能适当降低反应温度的目的。主要研究胶粉助剂掺拌比例、加工工艺、挤出温度对胶粉微观特性和改性沥青路用性能的影响。研究表明,废机油活化工艺能显著提高胶粉的溶胶含量;且胶粉助剂掺拌比例为3∶1时的改性沥青具有优良的路用性能;挤出工艺则主要起到降低胶粉粒径、改善胶粉在沥青中的相态分布的作用。180℃挤出的胶粉改性沥青高、低温性能以及可加工性能均表现良好。Aiming at the problem of rubber properties lossing and high polution and energy in processing reclaimed rubber with high temperature,the activated rubber was prepared with the waste engine oil before extruding.It can both guarantee the desulfurization effect of reclaimed rubber and lower the processing temperature properly.The effect on different proportion of rubber powder and oil,processing method,processing temperature was investigated.The result showed that waste oil can significantly improve the sol content of crumb rubber.When the proportion of rubber powder and oil is 3∶ 1,the crumb rubber modified asphalt（CRA） has the best road performance.Extruding can reduce the powder particle size and improve phase distribution of powder in asphalt.The CRA in180 ℃ processing temperature has great high and low road performance and good workability as well.

关 键 词：废机油 活化 挤出温度 掺拌比例 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]