Research on Polymer Modifiers of Bio-asphalt Synthesized by Controlled/Living Radical Polymerization

2018 3rd International Conference on Building Materials and Construction

土木建筑工程

Hui, Jia^1 ; Wang, Tong^1 ; Jiang, Ruinan^1 ; Zhu, Baolin^1 ; Wang, Xuji^2

China Academy of Transportation Sciences, Beijing, China^1

Bayannaoer City Traffic Construction Project Quality Supervision Station, Bayannaoer, China^2

关键词: Controlled/living radical polymerization;    Fast pyrolysis;    Good stability;    Low temperature performance;    Modification effect;    Number average;    Petroleum asphalt;    Polymer modifiers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/371/1/012058/pdf
DOI  :  10.1088/1757-899X/371/1/012058

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Bio-asphalt is a new material compared with petroleum asphalt. The bio-asphalt is prepared by bio-oil, which is produced by fast pyrolysis of biomass. Disadvantages of bio-oil are instability and poor high and low temperature performance. Considering these shortcomings, a polymer modifier with controlled number-average molar mass and well-defined microstructure was prepared by controlled/living radical polymerization. In this research, the modifier was added in bio-asphalt to prove its performances which were evaluated by three major indexes tests of asphalt. Test result shows that the modified bioasphalt has good stability and good high and low temperature performance. In conclusion, the polymer modifiers, synthesized by controlled/living radical polymerization, have excellent modification effect on bio-asphalt.