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sunxm

金虫 (小有名气)

[求助] 颜料 颗粒分散,阻止团聚 已有1人参与

本人最近在做颜料包覆, 颜料颗粒呈负电,乳化过程如下,颜料颗粒经过超声后,加入到表面活性剂里,进行搅拌,然后再超声,然后用铝,硅凝胶进行包覆,但是结果总是团聚的 ,后来发现因为包覆剂带入的强电解质, 例如硫酸根等,使其表面电荷变化团聚, 我现在怀疑表面没有吸附足够的表面活性剂,或者其它高手有更好的乳化,分散建议 ,请给与指导,谢谢了
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海鸥岛村夫

新虫 (小有名气)

【答案】应助回帖

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dgf2008: 金币+5, 谢谢应助! 2014-10-06 23:41:20
楼主可阅读这篇文献“effects of  (SO4)2- on the heterogeneous precipitation coating of hydrous alumina on TiO2 particles in an aqueous process”,相信会对你有所帮助
2楼2014-02-11 09:40:21
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ayhxlg

金虫 (正式写手)

什么颜料?
3楼2014-02-11 17:05:36
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