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	起泡剂C_(12)E_8的表面流变学性质; Surface Rheological Properties of Foaming Agent C_(12)E_8
	韩国彬 ; Vignes-AdlerM
	1998
关键词	表面波 膨胀模量 表面张力梯度 Marangoni效应 Surface waves Dilational modulus Surface tension gradient Marangoni effect
英文摘要	利用表面波技术研究起泡剂C_(12)E_8的表面流变学性质以及解释表面变形所产生的表面张力梯度的修复机理.实验结果表明，起泡剂C_(12)E_8的表面具有粘弹性质，其减胀模量与表面变形频率有关系.在低浓度时，随着溶液浓度的增加，表面吸附量的增加很高了膨胀模量.而在高浓度时，由于表面与溶液之间的扩散交换抵消了膨胀模量的增加，这导致膨胀模量随着溶液浓度增加反而降低.; The gravity draimage of foam leads to the dcforlllation of liquid film that results inthe surface tension gradients and the heterogencity of film thicknesses.The (deformation of liquidfilms causes the rupture of films.However, the deformation of liquid films produced from surfaceactive agents solution can be spontaneously restored by the "Marangom effect".This ability ofrestoration is connected with the surface rheology.The aim of this paper is to investigate thesurface rheology of foammg agent C_(12)E_8 by the (lamped longitudillal waves method and explamsthe restoration mechamsm of surface tension gradien due to the stretched surface. It is shown thatthe surface of foammg agent C_(12)E_8 is viscoclastic;and that the surface dilational modulus dependson the frequency of the perturbation,The increase of dilational modulus with concentrations at lower concentration is caused by the surface adsorption of molecules C12E8, while the decreasc athigher concentration is caused by bluk to surface diffusion exchange.; 国家教委留学回国人员科研启动基金
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/107544]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	韩国彬,Vignes-AdlerM. 起泡剂C_(12)E_8的表面流变学性质, Surface Rheological Properties of Foaming Agent C_(12)E_8[J],1998.
APA	韩国彬,&Vignes-AdlerM.(1998).起泡剂C_(12)E_8的表面流变学性质..
MLA	韩国彬,et al."起泡剂C_(12)E_8的表面流变学性质".(1998).

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