Viscoelasticity of Asphalt Modified With Packaging Waste Expended Polystyrene  

作　　者：Changqing Fang Linna Jiao Jingbo Hu Qian Yu Dagang Guo Xing Zhou Ruien Yu 

机构地区：[1]School of Printing and Packaging Engineering, Xi'an University of Technology [2]School of Material Science and Engineering, Xi'an Jiaotong University

出　　处：《Journal of Materials Science & Technology》2014年第9期939-943,共5页材料科学技术（英文版）

基　　金：the financial support provided by the National Natural Science Foundation of China(Grant Nos.51002118,51172180);Program for New Century Excellent Talents in University of Ministry of Education of China(Grant No.NCET-12-1045);Shaanxi Programs for Outstanding Youth Project(2011)

摘　　要：In view of environmental and economic aspect, asphalt was modified with recycled packaging waste expended polystyrene （WEPS） instead of common polymer. The differential scanning calorimetry （DSC）, rotational viscometer and dynamic shear rheology （DSR） were used to analyze and evaluate the viscoelasticity of modified asphalt. Results indicate that the sensitivity of modified asphalt to temperature is decreased while the rut resistance of asphalt is increased. In addition, the viscoelasticity of asphalt is improved after the modification with WEPS. Besides, the modified asphalt has high viscosity at low temperature and low viscosity at high temperature, which is favorable for construction.In view of environmental and economic aspect, asphalt was modified with recycled packaging waste expended polystyrene （WEPS） instead of common polymer. The differential scanning calorimetry （DSC）, rotational viscometer and dynamic shear rheology （DSR） were used to analyze and evaluate the viscoelasticity of modified asphalt. Results indicate that the sensitivity of modified asphalt to temperature is decreased while the rut resistance of asphalt is increased. In addition, the viscoelasticity of asphalt is improved after the modification with WEPS. Besides, the modified asphalt has high viscosity at low temperature and low viscosity at high temperature, which is favorable for construction.

关 键 词：Waste plastics CHARACTERIZATION VISCOSITY 

分 类 号：TQ325.2[化学工程—合成树脂塑料工业]