研究非离子表面活性剂修饰的煤表面的湿机制
Hongmei Li1,2, Ying Mao1, Jing Xie2
1College of Food and Bioengineering, Chengdu University, Chengdu 610106, China.
ACS omega
|January 8, 2026
概括
非离子表面活性剂通过吸附到其疏水表面来改变煤的湿透性. X-100表面活性剂表现出最佳性能,增强了采矿操作中的粉尘抑制.
科学领域:
- 材料科学 材料科学 材料科学
- 表面化学 表面化学
- 采矿工程 采矿工程 采矿工程
背景情况:
- 煤的湿透性对于采矿中的粉尘抑制至关重要.
- 了解表面活性剂与煤的相互作用是提高防尘效率的关键.
研究的目的:
- 为了研究煤与非离子表面活性剂的湿透性.
- 阐明表面活性剂吸附的分子机制及其对煤灰的影响.
主要方法:
- 使用近距离分析,FTIR,13C NMR和XPS进行煤炭结构的表征.
- 通过沉积时间,Zeta潜力和表面自由能量测量来评估湿度.
- 使用煤炭宏分子模型进行分子模拟,以研究表面活性剂-煤炭相互作用.
主要成果:
- 平安山煤主要是疏水的,含有芳香碳化合物.
- 表面活性剂吸附显著改变了煤表面的自由能量,增加了它的极性成分.
- 与JFC-E相比,X-100在增强湿透性方面表现出卓越的表现.
- 分子模拟揭示了X-100增强的水友性位点和与煤炭更强的π-π相互作用.
结论:
- 非离子表面活性剂有效地改变了煤的湿透性.
- 由于其分子结构和吸附行为,X-100显示出在采矿中有效抑制灰尘的巨大潜力.
- 这项研究为开发科学指导的采矿粉尘控制策略提供了宝贵的见解.
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