合作客戶/
拜耳公司 |
同濟(jì)大學(xué) |
聯(lián)合大學(xué) |
美國保潔 |
美國強(qiáng)生 |
瑞士羅氏 |
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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(jié)論、致謝！
來源：上海謂載 瀏覽 1593 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(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)加速潤濕過程。 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。
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