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p1801321

金虫 (著名写手)

[交流] 【求助】所谓的单分散是指?

纳米粒子尺寸分布窄,还是指纳米粒子彼此分离?
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zhanguoshanshan

至尊木虫 (著名写手)


wdwsnnu(金币+1,VIP+0):这才全面,
The term "monodispersed particles" as the antonym of "polydispersed
particles" means a group of particles made highly uniform in size and shape.
If they are defined in terms of size distribution, one may expect the
coefficient of variation (= standard deviation / mean size) to be within 10
%. The major significance of monodispersed particles is attributed to the
uniformity in physico-chemical properties of individual particles in a
dispersion system, which allows us to directly correlate the properties of a
whole system with those of each particle and facilitates theoretical
approaches.
3楼2008-10-29 12:00:43
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zhanguoshanshan

至尊木虫 (著名写手)

wdwsnnu(金币+0,VIP+0):这是一个必要条件
纳米粒子彼此分离
2楼2008-10-29 11:56:42
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nanopowders

金虫 (正式写手)

木船长

颗粒尺寸形貌基本一致,分散均匀,颗粒彼此分散就是单分散
曾经和某一位老师探讨时给我解释的
我们永远不知道自己有多高,直到被召唤着站起来
4楼2008-10-29 22:03:02
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