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 |
相關(guān)新聞Info
-
> 人工沖洗升級為超聲波清洗，可改善新能源電池沖壓配件的表面張力
> 溴化鋰水溶液微觀特性的分子動(dòng)力學(xué)研究
> 高速運(yùn)動(dòng)的微小水滴撞擊深水液池產(chǎn)生的空腔運(yùn)動(dòng)及形成機(jī)理（一）
> 工業(yè)中表面張力的重要性
> 硬脂酸鈉、油酸鈉、亞油酸鈉對Ca2+活化石英浮選差異性、表面張力的影響
> 表面張力對青瓷制品釉面質(zhì)量的影響
> 氟原子表面張力極低，可提高消泡劑的持續(xù)抑泡效果
> 濃度、溫度、二價(jià)離子、礦化度等對無堿二元復(fù)合體系界面張力的影響
> 不同界面張力-潤濕性組合的滲吸液體系對于化學(xué)滲吸效果的影響規(guī)律
> 浮選藥劑的性能、組合用藥機(jī)理及協(xié)同效應(yīng)的影響因素（二）
推薦新聞Info
-
> 重軌鋼中氧、硫含量、夾雜物形核率、聚集與界面張力的關(guān)系（三）
> 重軌鋼中氧、硫含量、夾雜物形核率、聚集與界面張力的關(guān)系（二）
> 重軌鋼中氧、硫含量、夾雜物形核率、聚集與界面張力的關(guān)系（一）
> LB膜技術(shù)在生物基材料制備、改性和界面相互作用研究
> LB膜技術(shù)及LB膜成膜過程、應(yīng)用領(lǐng)域
> 牡蠣低分子肽LOPs雙重乳液制備、界面性質(zhì)檢測及消化吸收特性研究（四）
> 牡蠣低分子肽LOPs雙重乳液制備、界面性質(zhì)檢測及消化吸收特性研究（三）
> 牡蠣低分子肽LOPs雙重乳液制備、界面性質(zhì)檢測及消化吸收特性研究（二）
> 牡蠣低分子肽LOPs雙重乳液制備、界面性質(zhì)檢測及消化吸收特性研究（一）
> 不同水解時(shí)間的Protamex酶對玉米谷蛋白表面張力、泡沫、理化性質(zhì)等的影響（三）
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 1545 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 821-0088-04。
參考
Barrett, G. & Slaymaker, O. 1989. Identification, characterization, and hydrological implications of water repellency in mountain soils, southern British-Columbia. Catena, 16, 477–489.
Bisdom, E.B.A., Dekker, L.W. & Schoute, J.F.T. 1993. Water repellency of sieve fractions from sandy soils and relationships with organic material and soil structure. Geoderma, 56, 105–118.
Chen, Y. & Schnitzer, M. 1978. Surface-tension of aqueous-solutions of soil humic substances. Soil Science, 125, 7–15.
Dekker, L.W., Oostindie, K. & Ritsema, C.J. 2005. Exponential increase of publications related to soil water repellency. Australian Journal of Soil Research, 43, 403–441.
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.
Doerr, S.H., Shakesby, R.A. & Walsh, R.P.D. 2000. Soil water repellency: its causes, characteristics and hydro-geomorphological significance. Earth-Science Reviews, 51, 33–65.
Doerr, S.H., Dekker, L.W., Ritsema, C.J., Shakesby, R.A. & Bryant, R. 2002. Water repellency of soils: the influence of ambient relative humidity. Soil Science Society of America Journal, 66, 401–405.
Ellerbrock, R.H., Gerke, H.H., Bachmann, J. & Goebel, M.O. 2005. Composition of organic matter fractions for explaining wettability of three forest soils. Soil Science Society of America Journal, 69, 57–66.
Feng, G.L., Letey, J. & Wu, L. 2002. The influence of two surfactants on infiltration into a water-repellent soil. Soil Science Society of America Journal, 66, 361–367.
Gee, G.W. & Bauder, J.W. 1986. Particle-size analysis. In: Methods of Soil Analysis. Part 1. Monograph No 9 (ed. A. Klute), pp. 383–411.
American Society of Agronomy, Madison, WI. Graber, E.R., Ben-Arie, O. & Wallach, R. 2006. Effect of sample disturbance on soil water repellency determination in sandy soils. Geoderma, 136, 11–19.
Hurrass, J. & Schaumann, G.E. 2006. Properties of soil organic matter and aqueous extracts of actually water repellent and wettable soil samples. Geoderma, 132, 222–239.
Letey, J. 1969. Measurement of contact angle, water drop penetration time, and critical surface tension. In: Proceedings of the Symposium on Water Repellent Soils 6–8 May 1968 (eds L.F. DeBano & J.F. Letey), pp. 43–47. University of California, Riverside, CA. Letey, J., Carrillo, M.L.K. & Pang, X.P. 2000. Approaches to characterize the degree of water repellency. Journal of Hydrology, 231–232, 61–65.
Ma'shum, M. & Farmer, V.C. 1985. Origin and assessment of water repellency of a sandy South Australian soil. Australian Journal of Soil Research, 23, 623–626.
Roy, J.L. & McGill, W.B. 2002. Assessing soil water repellency using the molarity of ethanol droplet (MED) test. Soil Science, 167, 83–97.
Tschapek, M. 1984. Criteria for determining the hydrophilicityhydrophobicity of soils. Zeitschrift fu¨r Pflanzenerna¨hrung und Bodenkunde, 147, 137–149.
Walkley, A. & Black, I.A. 1934. An examination of the Degtjareff method for determining soil organic matter and a proposed modifi- cation of the chromic acid titration method. Soil Science, 37, 29–38. Wallach, R. & Graber, E.R. 2007. Effluent irrigation-induced soil water repellency: time dependent variation of infiltration rate and of water repellency at different levels of ambient relative humidity. Hydrological Processes, 21, 2346–2355.
Wallach, R., Ben-Arie, O. & Graber, E.R. 2005. Soil water repellency induced by long-term irrigation with treated sewage effluent. Journal of Environmental Quality, 34, 1910–1920.
Wallis, M.G. & Horne, D.J. 1992. Soil water repellency. Advances in Soil Science, 20, 91–140.