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Copper nanoparticles and production method for same, copper nanoparticle fluid dispersion, copper nanoink, copper nanoparticle preservation method, and copper nanoparticle sintering method
Copper nanoparticles and production method for same, copper nanoparticle fluid dispersion, copper nanoink, copper nanoparticle preservation method, and copper nanoparticle sintering method
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机译：铜纳米粒子及其制造方法，铜纳米粒子分散液，铜纳米油墨，铜纳米粒子保存方法和铜纳米粒子烧结方法
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摘要
An object of the present invention is to provide copper nanoparticles that suppress the oxidation of copper, have an average particle diameter of 10 nm or less and therefore undergo a remarkable reduction in the melting point, are highly dispersible, can be sintered at a low temperature, allow the removal of the protective layer during low-temperature sintering at 150° C. or less, and can be suitably used as a conductive copper nanoink material; and to also provide a method for preserving copper nanoparticles, whereby the copper nanoparticles can be stably preserved at room temperature for a long period of time, and can be transported.;The present invention provides copper nanoparticles each having a central portion comprising a copper single crystal, and a protective layer surrounding the central portion;(1) the copper nanoparticles having an average particle diameter of 10 nm or less;(2) the protective layer containing at least one member selected from the group consisting of C3-6 primary alcohols, C3-6 secondary alcohols, and derivatives thereof; and(3) the protective layer having a boiling point or thermal decomposition point of 150° C. or less.展开▼
