Electrically induced reversible viscosity change in hectorite aqueous dispersion under an AC electric field
Electrically induced reversible viscosity change in hectorite aqueous dispersion under an AC electric field
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交流电场下锂蒙脱石水分散体电致可逆粘度变化
DOI：
10.1016/j.clay.2014.06.026
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发表时间：
2014
影响因子：
5.6
通讯作者：
Keiichi KUROSAKA
中科院分区：
文献类型：
--
作者：
Hiroshi KIMURA;Mao UENO;Shinya TAKAHASHI;Akira TSUCHIDA;Keiichi KUROSAKA
研究了在交流电场作用下，脱离子石墨烯水分散体的电致粘度变化。当施加几V/mm量级的交流电场（<约0.01 Hz）并随后去除时，hectorite分散体表现出可逆的粘度变化，尽管在施加直流（DC）电场时表现出不完全可逆性。对于可逆粘度变化的机理，可以认为在没有电场作用的情况下，英多利石是分散在单个层或小絮凝体中。它们形成一个三维网络结构，在去除交变电场后又恢复到原来的色散状态。
The electrically induced viscosity change of adeionizedhectorite aqueous dispersion under an alternating current (AC) electric field was investigated. The hectorite dispersion showed a reversible viscosity change when an AC electric field (< ca. 0.01 Hz) of the order of a few V/mm was applied and removed thereafter, although it showed an incomplete reversibility when a direct current (DC) electric field was applied. Regarding the mechanism of reversible viscosity change, it can be considered that the hectorite is well dispersed as individual layers or as small flocs without an electric field. These form a three-dimensional network structure, which returns to the original dispersion state upon removal of the alternating electric field.