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philostring

银虫 (初入文坛)

[求助] 关于一段乳液稳定性的英文描述,没看懂,求大神指点

We note here that the work to create the interface contains positive, quadratic terms in the colloid size, but these can be offset, at least in principle, by a negative contribution linear in the particle size, which contains the line tension. That may lead to a net negative free energy of creating the interface, which could occur for the small particles studied here, as the (positive) quadratic terms always dominate for a large colloid size. This line tension argument could explain why we never observed stable emulsions for colloids with a much larger radius than the nanoparticles in this study.
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deng神之刺客

木虫 (小有名气)

【答案】应助回帖

感谢参与,应助指数 +1
我们注意到那些工作,即产生的界面在胶质大小上存在正的、二次方的关系。但是,至少在原则上,通过包含了线张力的粒子大小的负贡献线性,这些可以被抵消。那可能导致产生一个静的负自由能的界面,即出现在这里研究的小颗粒,因为正的、二次关系的情况经常主导产生大的胶体颗粒。这些线张力参数可以解释,在这个研究中为什么具有更大半径的颗粒比纳米粒子更难观察到稳定的胶体乳液。
2楼2013-11-06 17:31:18
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