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表面活性剂是否对斥水性土壤的润湿性有影响?——结论、致谢!
来源:上海谓载 浏览 1404 次 发布时间:2021-11-09
结论
不像人工创造的稳定的驱虫表面或多孔 介质,拒水土壤表现出润湿动力学,由此 最初疏水的土壤随着时间的推移变得亲水 与水接触时。 初始润湿动力学 排斥土壤通常归因于 固液界面能 (γSL),或液汽界面能 (γLV) 的降低,或两者兼而有之。 γLV 的减少 建议是由于土壤表面溶解 活性有机化合物进入与水接触的水中 土壤。 在这项研究中,我们测试了土传表面的影响 润湿动力学的活性物质,并发现,与广为接受的范式相反,土壤释放表面 活性化合物不会加速润湿过程。 因此很明显,固体界面能的变化 表面(γSL 或 γSV),而不是液汽 表面 (γLV) 必须在驱动不稳定排斥性土壤的润湿动力学方面起主导作用。
致谢
本研究由以色列农业部资助 和农村发展,资助号 821-0088-04。
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