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surface tension |
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surface tensionProperty that causes the surface of a liquid to behave as if it were covered with a weak elastic skin; this is why a needle can float on water. It is caused by the exposed surface's tendency to contract to the smallest possible area because of cohesive forces between molecules at the surface. Allied phenomena include the formation of droplets, the concave profile of a meniscus, and the capillary action by which water soaks into a sponge. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Influence of surfactant-facilitated interfacial tension reduction on organic liquid migration in porous media: observations and numerical simulation. That interface typically is the "weak link" in thermoplastic composites, as high-viscosity engineering resins are unable to fully wet out the preform due to high interfacial tension. Surfactants, when used in small quantities, reduce surface tension in a fluid or the interfacial tension between two immiscible fluids, such as oil and water. |
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