| 摘要 |
<p>PURPOSE:To obtain an electrically conductive powder having a stable and high conductivity, good dispersibility and flowability and being suitable as a raw material for manufacturing an electrically conductive composite material. CONSTITUTION:This electrically conductive powder is a spherical siloxane particle the surface of which is covered with silver by bringing the spherical siloxane particle into contact with a soln. of silver compd. and a soln. of a reducing agent. It is pref. when the spherical siloxane particles are dispersed in the coexistence of a wetting agent and said contact treatment is performed, because a homogeneous surface treatment can be attained. As the wetting agent, methyl alcohol, ethyl alcohol, ethylene glycol, etc., are pref. As the silver compd. and a reducing agent, silver nitride and a tartrate or hydrogen peroxide are respectively pref.</p> |
