China Plastics ›› 2022, Vol. 36 ›› Issue (2): 131-138.DOI: 10.19491/j.issn.1001-9278.2022.02.019

• Plastic and Environment • Previous Articles     Next Articles

Research progress in waste plastic⁃modified asphalts

MA Jiasen, XUE Yongbing(), GUO Qi, LIU Zhenmin   

  1. College of Chemical and Biological Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China
  • Received:2021-09-23 Online:2022-02-26 Published:2022-02-23

Abstract:

This article reviewed the research progress in the modification of asphalts with asphalt polyethylene, polypropylene, polyvinyl chloride, polystyrene, ethylene?vinyl acetate copolymer, acrylic acid copolymer and other waste plastics as a modifier used alone and compounded with other materials in recent years. The plastic cracking and asphalt modification technologies with a promising development prospect were introduced, and meanwhile the relevant modification mechanisms were summarized, including swelling mechanism, separation mechanism, and storage stability mechanism. Finally, the future development trend in waste plastic?modified asphalts was prospected.

Key words: waste plastic, modification, asphalt, compounding, cracking, mechanism

CLC Number: