对生物回收剂及其回收青的探索:组成比率,回收效率和微机制
Ying Fang1,2, Zhengqi Zhang3, Fei Zhou1,2
1School of Civil Engineering and Architecture, Hubei University of Arts and Science, Xiangyang, Hubei, China.
PloS one
|October 9, 2025
概括
来自废植物油 (WVO) 的新型生物回收剂 (BRA) 有效地使老青路面复苏. 这种可持续的替代品显著改善了粘附性,质性和疲劳寿命,为青回收提供了更绿色的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续工程 可持续工程
- 铺路工程 铺路工程 铺路工程
背景情况:
- 基于矿物油的青回收剂引发了环境问题.
- 需要可持续的替代品来利用再生青路面 (RAP).
研究的目的:
- 设计和评估用于RAP的废植物油 (WVO) 的生物回收剂 (BRA).
- 验证回收效率并了解BRA回收青的机制.
主要方法:
- 正角测试确定了BRA的组成 (基油:透:聚合物:功能=120:2:13:2.4).
- 物理化学,透性,粘附性,骨质学和疲劳测试评估了BRA的性能.
- 不同扫描热度计 (DSC) 和原子力显微镜 (AFM) 分析了微观机制.
主要成果:
- 与商业代理商 (LBS,HRA) 相比,BRA显示出更高的回收效率.
- BRA恢复了老青的粘附性,质性和耐疲劳性,使疲劳寿命增加了60% (相对于LBS).
- 推的BRA剂量:7-9%的老化矩阵青,3-5%的SBS修改青.
结论:
- BRA是老青的可持续和有效的回收剂.
- BRA提高了路面的性能,可以适应更广泛的交通等级.
- 微观分析显示,BRA对青微观结构和粘附有积极影响.
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