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表面活性劑是否對斥水性土壤的潤濕性有影響？——結論、致謝！
來(lái)源：上海謂載 瀏覽 1551 次 發(fā)布時(shí)間:2021-11-09
結論
不像人工創(chuàng )造的穩定的驅蟲(chóng)表面或多孔 介質(zhì)，拒水土壤表現出潤濕動(dòng)力學(xué)，由此 最初疏水的土壤隨著(zhù)時(shí)間的推移變得親水 與水接觸時(shí)。 初始潤濕動(dòng)力學(xué) 排斥土壤通常歸因于 固液界面能 (γSL)，或液汽界面能 (γLV) 的降低，或兩者兼而有之。 γLV 的減少 建議是由于土壤表面溶解 活性有機化合物進(jìn)入與水接觸的水中 土壤。 在這項研究中，我們測試了土傳表面的影響 潤濕動(dòng)力學(xué)的活性物質(zhì)，并發(fā)現，與廣為接受的范式相反，土壤釋放表面 活性化合物不會(huì )加速潤濕過(guò)程。 因此很明顯，固體界面能的變化 表面（γSL 或 γSV），而不是液汽 表面 (γLV) 必須在驅動(dòng)不穩定排斥性土壤的潤濕動(dòng)力學(xué)方面起主導作用。
致謝
本研究由以色列農業(yè)部資助 和農村發(fā)展，資助號 821-0088-04。
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