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多聚磷酸与SBS复合改性沥青的工艺研究 被引量:5

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摘要 研究了多聚磷酸(PPA)对SBS改性沥青性能的影响,从针入度、延度、软化点和离析4个SBS改性沥青指标,对多聚磷酸、SBS聚合物等原料掺量在改性沥青中的作用进行分析。本文研究结果表明:加入多聚磷酸后,能提高软化点,降低针入度,在达到相同指标要求的情况下,可以减少SBS掺加量,进而可以降低成本;同时,多聚磷酸复合SBS改性沥青,由于SBS掺量的减少,可以使SBS吸收到更多沥青中的油份,SBS改性沥青的热储存稳定性明显改善;但多聚磷酸加入量过大会使沥青针入度与延度降低,不能满足规范要求,用量为0.2%~0.3%较为合适。
作者 梁皓
出处 《公路交通科技(应用技术版)》 CAS CSCD 2014年第12期149-151,共3页
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