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1. 发明申请

US20160184900A1 METHOD FOR PREPARING NANO-COPPER POWDER 审中-公开
标题翻译：制备纳米碳粉的方法
公开(公告)号：US20160184900A1
公开(公告)日：2016-06-30
申请号：US14983705
申请日：2015-12-30
申请人： Institute of Chemistry, Chinese Academy of Sciences
发明人： Xingye Zhang , Yanlin Song
IPC分类号： B22F9/24 , B22F1/00
CPC分类号： B22F9/24 , B22F1/0018 , B22F1/0044 , B22F2001/0092 , B22F2009/245 , B22F2301/10 , B22F2304/05 , B22F2999/00
摘要： The present invention discloses a method for preparing nano-copper powder. The method disclosed in the present invention comprises: (1) providing a dispersion solution, the dispersion solution contains at least one copper salt precursor and at least one disperser, the disperser is dissoluble in both water and weak solvents; (2) providing a reducer dispersion solution, the reducer dispersion solution contains at least one reducer; (3) contacting the reducer dispersion solution with the dispersion solution provided by step (1) in a condition enough to reduce the copper salt precursor by the reducer into elementary copper; (4) separating copper nano-particles from reaction solution obtained by step (3), and drying separated copper nano-particles by spray drying, so as to obtain the nano-copper powder. The nano-copper powder prepared by the method in accordance with the present invention is dispersible in both water and environment-friendly weak solvents. Therefore, the obtained nano-copper powder can be used to prepare weak solvent-type electrically conductive ink and overcome the drawbacks of poor weather resisting property of water-based electrically conductive ink and severe environmental pollution of solvent-type electrically conductive ink.
摘要翻译：本发明公开了一种制备纳米铜粉的方法。本发明公开的方法包括：（1）提供分散溶液，所述分散液含有至少一种铜盐前体和至少一种分散器，所述分散器在水和弱溶剂中均可溶解; （2）提供还原剂分散液，还原剂分散液含有至少一种还原剂; （3）将还原剂分散液与步骤（1）所提供的分散液以足以将铜盐前体还原成原料铜的条件接触; （4）从步骤（3）得到的反应溶液中分离出铜纳米颗粒，并通过喷雾干燥干燥分离的铜纳米颗粒，得到纳米铜粉末。通过根据本发明的方法制备的纳米铜粉末可分散在水和环境友好的弱溶剂中。因此，所得到的纳米铜粉末可用于制备弱溶剂型导电油墨，并克服了水性导电油墨的耐候性差，以及溶剂型导电油墨的严重环境污染的缺点。

2. 发明授权

US10471513B2 Method for preparing nano-copper powder 有权
公开(公告)号：US10471513B2
公开(公告)日：2019-11-12
申请号：US14983705
申请日：2015-12-30
申请人： Institute of Chemistry, Chinese Academy of Sciences
发明人： Xingye Zhang , Yanlin Song
IPC分类号： B22F9/24 , B22F1/00
摘要： The present invention discloses a method for preparing nano-copper powder, comprising: (1) providing a dispersion solution, containing copper salt precursor and disperser, the disperser is dissoluble in both water and weak solvents, and is an acrylic modified polyurethane disperser; (2) providing a reducer dispersion solution, containing reducer, the reducer is organic borane; (3) contacting the reducer dispersion solution with the dispersion solution in a condition enough to reduce the copper salt precursor by the reducer into elementary copper; (4) separating copper nano-particles from reaction solution obtained by step (3), and drying separated copper nano-particles by spray drying, so as to obtain the nano-copper powder. The nano-copper powder prepared by the method in accordance with the present invention is dispersible in both water and environment-friendly weak solvents, which can be used to prepare weak solvent-type electrically conductive ink.

3. 发明授权

US10329445B2 Method for preparing nano-silver powder and application in preparation of electrically conductive ink of the nano-silver powder and electrically conductive ink 有权
公开(公告)号：US10329445B2
公开(公告)日：2019-06-25
申请号：US14956596
申请日：2015-12-02
申请人： Institute of Chemistry, Chinese Academy of Sciences
发明人： Xingye Zhang , Yanlin Song
IPC分类号： C09D11/52 , B22F9/24 , C22B11/00 , B22F1/00 , C22B3/00 , C09D11/037
摘要： A method for preparing nano-silver powder dispersible in environment friendly weak solvents, and an electrically conductive ink comprising the nano-silver powder are disclosed. The disclosure describes a disperser dissoluble in water and weak solvents and an alcohol amine as reducing agent to prepare mono-dispersed nano-silver, and employs ultrafiltration for purification and spray drying process to obtain a nano-silver powder dispersible in weak solvents, and thereby obtain an eco-solvent nano-silver electrically conductive ink. The electrically conductive ink in accordance with the disclosure has advantages of high safety, low volatility, low toxicity, high flash point, resistant to ultraviolet radiation and moisture etc., and can be used with uncoated bearing substrates, and is suitable for use in outdoor environments.

4. 发明申请

US20160152851A1 Method for Preparing Nano-Silver Powder and Application in Preparation of Electrically Conductive Ink of the Nano-Silver Powder and Electrically Conductive Ink 审中-公开
标题翻译：纳米银粉制备方法及纳米银粉和导电油墨导电油墨制备中的应用
公开(公告)号：US20160152851A1
公开(公告)日：2016-06-02
申请号：US14956596
申请日：2015-12-02
申请人： Institute of Chemistry, Chinese Academy of Sciences
发明人： Xingye Zhang , Yanlin Song
IPC分类号： C09D11/52 , C22B3/00 , B22F9/24
CPC分类号： C09D11/52 , B22F1/0018 , B22F1/0022 , B22F1/0074 , B22F9/24 , B22F2009/245 , B22F2301/255 , B22F2304/05 , C09D11/037 , C22B11/04
摘要： A method for preparing nano-silver powder dispersible in environment friendly weak solvents, and an electrically conductive ink comprising the nano-silver powder are disclosed. The disclosure describes a disperser dissoluble in water and weak solvents and an alcohol amine as reducing agent to prepare mono-dispersed nano-silver, and employs ultrafiltration for purification and spray drying process to obtain a nano-silver powder dispersible in weak solvents, and thereby obtain an eco-solvent nano-silver electrically conductive ink. The electrically conductive ink in accordance with the disclosure has advantages of high safety, low volatility, low toxicity, high flash point, resistant to ultraviolet radiation and moisture etc., and can be used with uncoated bearing substrates, and is suitable for use in outdoor environments.
摘要翻译：公开了一种分散在环境友好的弱溶剂中的纳米银粉末的制备方法和包含纳米银粉末的导电油墨。本公开内容描述了可溶于水和弱溶剂的分散剂和作为还原剂的醇胺作为还原剂制备单分散纳米银，并采用超滤进行净化和喷雾干燥，得到可溶于弱溶剂的纳米银粉，获得生态溶剂纳米银导电油墨。根据本公开的导电油墨具有安全性高，挥发性低，毒性低，闪点高，耐紫外线和湿气等优点，可与未涂布的轴承基材一起使用，适用于户外环境。

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