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表面活性劑是否對(duì)斥水性土壤的潤(rùn)濕性有影響?——結(jié)論、致謝!

來(lái)源:上海謂載 瀏覽 1066 次 發(fā)布時(shí)間:2021-11-09

結(jié)論


不像人工創(chuàng)造的穩(wěn)定的驅(qū)蟲表面或多孔 介質(zhì),拒水土壤表現(xiàn)出潤(rùn)濕動(dòng)力學(xué),由此 最初疏水的土壤隨著時(shí)間的推移變得親水 與水接觸時(shí)。 初始潤(rùn)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(jī)化合物進(jìn)入與水接觸的水中 土壤。 在這項(xiàng)研究中,我們測(cè)試了土傳表面的影響 潤(rùn)濕動(dòng)力學(xué)的活性物質(zhì),并發(fā)現(xiàn),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(rùn)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(qū)動(dòng)不穩(wěn)定排斥性土壤的潤(rùn)濕動(dòng)力學(xué)方面起主導(dǎo)作用。


致謝


本研究由以色列農(nóng)業(yè)部資助 和農(nóng)村發(fā)展,資助號(hào) 821-0088-04。


參考


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Dinar, E., Taraniuk, I., Graber, E.R., Katsman, S., Moise, T., Anttila, T. et al. 2006. Cloud condensation nuclei properties of model and atmospheric HULIS. Atmospheric Chemistry and Physics, 6, 2465–2481.


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表面活性劑是否對(duì)斥水性土壤的潤(rùn)濕性有影響?——結(jié)論、致謝!