咱是2神 咱是2神
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求问下大家有关胶体与表面化学的内容 老师让我们翻一个上古书籍(好像1975年左右的……)的英译日,但是好多部分我连用中文理解都不行……比如这一段,为什么要做压力和浓度的曲线?胶体溶液聚沉还跟压力有关吗?另外那个离子顺序又是指的什么……?麻烦大家指点了 This appears to besupported by the work of Barclay et al.(30)In an ingenious experiment based essentially upon exerting a known pressure upon the disperse system and observing the change inpressure which results, these workers determined pressure-volume fractioncurves for polystyrene latices from which the surfactant had been removed.Figure 23 illustrates the data for particles of 352 nm radius in the presence of 10-1 mol/dm3 solutions of variouselectrolytes—the lowest electrolyte concentration at which flocculation couldbe detected. A marked difference is seen between the volume fractions at whichthe steep pressure rise commences for the different counterions; the order is VLi+>VRb+>VCs+ 这似乎得到了Barclay等人(30)的研究的支持。在一项巧妙的实验中,主要是基于在分散系统上施加已知压力并观察压力变化,这些工人确定了聚苯乙烯的压力-体积分数曲线。除去表面活性剂的胶乳。 图23显示了在存在各种电解质的10 (-1)mol dm(-3)溶液的情况下,半径352 nm的粒子的数据-可以检测到絮凝的最低电解质浓度。在不同的抗衡离子开始急剧上升的体积分数之间可以看到明显的差异。顺序是 VLi+>VRb+>VCs+
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