合作客户/
拜耳公司 |
同济大学 |
联合大学 |
美国保洁 |
美国强生 |
瑞士罗氏 |
相关新闻Info
-
> Na2CO3溶液与模拟油反应不同时间后产物的界面张力、剪切黏度（一）
> W/O型Pickering乳液油水间的界面张力对乳液稳定性的影响
> 不同温度下纯有机物液体表面张力估算方法及关联方程（二）
> 电场‑磁性破乳剂联合破乳：界面张力动态变化对油滴聚集行为的影响
> 快猫网址和界面张力仪并不一样
> 耐擦刮无胶消光膜制备方法、高表面张力与收解卷顺畅性的平衡（二）
> 肺内液表面张力的作用、临床意义及测量方法（三）
> 不同温度下纯有机物液体表面张力估算方法及关联方程（一）
> 聚合物稠化剂（ASCM）合成条件、界面张力及耐盐、耐剪切性能（二）
> 快猫短视频在线测定粗铋中金、银含量，精密度高、准确度好
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：上海快猫在线观看视频 浏览 2171 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，快猫在线观看视频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。
参考
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.