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myselves

铜虫 (小有名气)

[求助] 硅胶的微孔孔容 已有2人参与

最近做了200-300目硅胶样品的氮气吸附,比表面积为351m2/g,孔容为0.89ml/g,但是受仪器限制,未能测得其微孔孔容。请问大家,一般硅胶样品的微孔孔容占总孔容的比例? 感激不尽!!
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zyhou

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jiangyun2: 金币+1, 谢谢回帖交流,欢迎常来~~ 2014-04-17 10:13:43
myselves(jiangyun2代发): 金币+4 2014-04-21 21:57:15
微孔的比例很小,主要应该是颗粒堆积孔,平均孔径在15-30纳米
2楼2014-04-16 22:26:13
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myselves

铜虫 (小有名气)

引用回帖:
2楼: Originally posted by zyhou at 2014-04-16 22:26:13
微孔的比例很小,主要应该是颗粒堆积孔,平均孔径在15-30纳米

谢谢
3楼2014-04-17 08:58:37
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646468128

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探路者......

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感谢参与,应助指数 +1
jiangyun2: 金币+1, 谢谢回帖交流,欢迎常来~ 2014-04-17 21:21:06
myselves(jiangyun2代发): 金币+2 2014-04-21 21:57:21
2楼候老师说的在理。微孔孔容可以通过T-plot方法计算推算!既然你已经做了中孔分布应该是可以推算得到微孔比表面和孔容的。微孔孔径分布需要做微孔测得。如果是推算微孔比表面很小那么就没有必要做微孔了!!
Measure,whatismeasurable,andmakemeasurablethatwhichisnot.
4楼2014-04-17 13:09:18
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myselves

铜虫 (小有名气)

如何给金币呢?
5楼2014-04-18 16:28:21
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