f******5
发帖数: 7 | 1 I think you can check Ludox to get it. But I am not sure.
5nm- |
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k******e
发帖数: 32 | 2 50纳米以上，可以用Stober的方法自己合成，
几十纳米左右用乳液的方法...
再往下就难了，Ludox的不是完美球型... |
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h****u
发帖数: 2 | 3 LUDOX® AS-30 colloidal silica, 30 wt. % suspension in water
it is said it is stablized by ammonium counter ion. Does that mean it is
positively charged? Thanks |
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