提高烯酸接材料的防洗性能:其特征,改善机制和实际应用
Zuochun Li1, Feng Huang1, Yuyou Yang1
1School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China.
Polymers
|October 14, 2023
概括
本托尼特增强了烯酸盐合剂,改善了对地下水控制的冲洗阻力. 这种修改后的粘合剂提供了更好的强度和不透性,对于高流量环境至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 地质技术工程 地质技术工程
- 聚合物化学 聚合物化学
背景情况:
- 烯酸接材料被广泛用于地下水漏控制.
- 传统的烯酸泥在高流量条件下容易被冲洗,这限制了其应用.
研究的目的:
- 为了提高烯酸 (AC) 接材料的冲洗阻力.
- 为了研究本托尼特 (Li-B) 改性交流的修饰机制和性能.
主要方法:
- 修改了AC粘合剂,使用不同比例的Li-B.
- 材料属性的分析,包括定时间,出血,粘度,膨胀性,防水分散性,机械强度和不透性.
- 使用X射线衍射 (XRD),红外光谱 (IR) 和扫描电子显微镜 (SEM) 的表征.
- 通过工程应用在动态水接中进行验证.
主要成果:
- LiB-AC粘合剂表现出可调节的设置时间,最小的出血 (0.1%),更高的粘度 (65mPa·s),以及显著改善的抗水分散性 (24倍纯AC泥).
- 观察到增强的机械强度 (压力0.386 MPa,拉力0.088 MPa) 和不透性 (2.23 × 10-8 m/s).
- 在20%的Li-B含量下实现了最佳性能,这归因于更密集,更稳定的交织网络结构.
结论:
- 本托尼特有效地提高了烯酸粘合剂的防洗性能和机械性能.
- 经过修改的LiB-AC合剂在动态水合剂项目中表现出优异的性能,相比于水玻璃水泥和纯AC合剂.
- LiB-AC粘合剂是一种有前途的材料,可以在具有挑战性的高流环境中控制地下水透.
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