| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5202175 | Polymer Degradation and Stability | 2013 | 8 Pages |
Abstract
The Styrene-butadiene-styrene copolymer (SBS) triblock copolymer modified asphalt binder (SBSMA), applied in an overlay, and is easy to age in the field. Thus, the thermal aging and ultraviolet (UV) radiations aging of SBSMA must be considered for the research on the performance of asphalt pavement. Antioxidants and UV absorbers were employed to improve the antiaging resistance of SBSMA in this study. The results indicated that the SBSMA with antioxidants has good heat aging resistance, and SBSMA with UV absorbers blends have good photostability. The compound antiaging agents containing antioxidants and UV absorbers are a best choice to prepare SBSMA with better physical and antiaging resistance. The experimental results also indicated that the effects of antiaging agents on the physical properties of SBSMA are little at low contents. Especially conventional physical properties of SBSMA with 1Â wt% of ZDDP and 0.5Â wt% of UV531 are close to that of SBSMA.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Peiliang Cong, Xiao Wang, Peijun Xu, Jianfei Liu, Rui He, Shuanfa Chen,