高比例DCLR修改青的制备,性能和相互作用机制
Lei Xia1,2, Qidong Su2, Jian Liu3
1School of Materials Science and Engineering, Chang'an University, Xi'an 710064, China.
Materials (Basel, Switzerland)
|May 7, 2025
概括
直接煤液化残留物 (DCLR) 增强了青路面.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 道路工程工程的道路工程.
背景情况:
- 由于复杂的预处理和不清楚的相互作用机制,直接煤液化残留物 (DCLR) 在青路面中面临高价值利用方面的挑战.
- 目前DCLR在青上的应用受到低剂量要求的限制.
- 了解高比例DCLR与青之间的多层次相互作用对于改善其在道路建设中的使用至关重要.
研究的目的:
- 在多个尺度上分析DCLR及其改性青的分子组成和结构特征.
- 评估高比例DCLR改性青的性能,并将其与BRA改性青进行比较.
- 阐明DCLR与青之间的相互作用机制,并提出一种新的应用策略.
主要方法:
- 里埃变换红外光谱法 (FTIR) 是一种
- 凝浸透染色学 (GPC) 是一种
- 扫描电子显微镜 (SEM) 的使用
- 布鲁努埃尔·艾梅特·特勒 (BET) 分析
- 温度编程的FTIR (Tg-FTIR) 是一个
- 在X射线衍射 (XRD) 中.
- 常规和气质性质检测检测常规和气质性质检测.
- 四个组成部分的分析.
- 基本面分析 基本面分析
主要成果:
- DCLR显著提高了基本青的高温性能和PG等级,满足高模块青的要求.
- 无论是DCLR还是BRA,都降低了青的低温性能.
- 与同等剂量的BRA相比,DCLR显示出更明显的高温性能提升和低温性能降低.
- 描述了DCLR和青之间的界面物理,化学和机械行为.
结论:
- 高比例的DCLR可以有效地用于青路面,提高高温性能.
- 该研究阐明了DCLR和青之间的相互作用机制,为优化使用铺平了道路.
- 提出了DCLR在青中的新应用策略,显著提高了其在道路工程中的资源利用率.
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