中国塑料

中国塑料 ›› 2014, Vol. 28 ›› Issue (04): 97-102 .DOI: 10.19491/j.issn.1001-9278.2014.04.018

• 塑料与环境 • 上一篇    

多层共挤膜废料改性沥青的微观结构和流变性能

钟韬1,应祎2,钱庆荣3,崔伟4,王光华4,夏新曙5,陈庆华3   

  1. 1. 福建师范大学2. 福建师范大学环境科学与工程学院3. 福建师大环境科学与工程学院4. 湖北恒泰橡塑有限公司5. 聚合物资源绿色循环利用教育部工程研究中心
  • 收稿日期:2013-11-26 修回日期:2014-01-05 出版日期:2014-04-15 发布日期:2014-04-15

Microstructure and Rheological Behavior of Recycled Multilayer Co-extrusion Film Scraps Modified Asphalt

  • Received:2013-11-26 Revised:2014-01-05 Online:2014-04-15 Published:2014-04-15

摘要： 采用多层共挤膜废料(r-MCEFS)对重交70#沥青进行改性制备r-MCEFS改性沥青。探讨了r-MCEFS用量对改性沥青的常规性能、微观结构和流变性能的影响。结果表明,随着r-MCEFS用量的增加,基质沥青的软化点逐渐上升；当r-MCEFS用量增加到4份（质量份数,下同）后,改性沥青的相形态由“海-岛”结构逐渐转变为“类网络”结构；随着r-MCEFS用量的增加，改性沥青的回弹模量和高温稳定性得到改善，r-MCEFS与沥青基质的界面作用增强。

关键词: 沥青, 改性, 多层共挤膜废料, 流变性能

Abstract: The recycled coextrusion multilayer film scraps(r-MCEFS) were employed to modify asphalt(heavy traffic 70#). The effect of r-MCEFS dosage on the general performances, microstructure, and rheological property of the modified asphalt were investigated. It showed that the softening point of the modified asphalt increased with increasing r-MCEFS content. The microstructure of the modified asphalt converted from the “sea-island” into the “web-like” structure at 4 phr r-MCEFS content. The elastic recovery and high temperature stability were improved by the introduction of r-MCEFS. Interfacial interaction between asphalt and r-MCEFS was increased.

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