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ⓘ 界達電位



界達電位
                                     

ⓘ 界達電位

界達電位 (zeta potential)在膠體化學中,是指膠體粒子上累積的離子所引發的靜電壓;膠體粒子由電雙層構成,包含固定層和擴散層。一個粒子可以藉由亨利公式(Henrys function)導出電泳的移動率,進而求出其界達電位的值。

U e = 2 ε ζ f k a 3 η {\displaystyle U_{e}={\frac {2\varepsilon \zeta fka}{3\eta }}}
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