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[1]余 珊,彭 明,胡 琴,等.球形超细铜粉的制备及其空气中抗氧化的研究[J].武汉工程大学学报,2020,42(06):622-627.[doi:10.19843/j.cnki.CN42-1779/TQ.202005003]
 YU Shan,PENG Ming,HU Qin,et al.Preparation of Spherical Ultrafine Copper Powder and Its Oxidation Resistance in Air[J].Journal of Wuhan Institute of Technology,2020,42(06):622-627.[doi:10.19843/j.cnki.CN42-1779/TQ.202005003]
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球形超细铜粉的制备及其空气中抗氧化的研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
42
期数:
2020年06期
页码:
622-627
栏目:
化学与化学工程
出版日期:
2021-01-30

文章信息/Info

Title:
Preparation of Spherical Ultrafine Copper Powder and Its Oxidation Resistance in Air
文章编号:
1674 - 2869(2020)06 - 0622 - 05
作者:
余 珊123彭 明23胡 琴13王会生4
1. 大冶有色设计研究院有限公司,湖北 黄石 435002;2. 大冶有色金属有限责任公司,湖北 黄石 435002;3. 有色金属冶金与循环利用湖北省重点实验室,湖北 黄石 435002;4. 武汉工程大学化学与环境工程学院,湖北 武汉 430205
Author(s):
YU Shan123 PENG Ming23 HU Qin13 WANG Huisheng 4
1. Daye Nonferrous Design Institute Company, Huangshi 435002, China;2. Daye Nonferrous Metals Company, Huangshi 435002, China;3. Key Laboratory of Hubei Province for Metallurgy and Recycling of Nonferrous Metals, Huangshi 435002, China;4. School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
关键词:
还原剂缓蚀剂球形超细铜粉抗氧化液相还原
Keywords:
reducing agent corrosion inhibitors spherical ultra-fine copper powder oxidation resistance liquid phase reduction
分类号:
TG146.1
DOI:
10.19843/j.cnki.CN42-1779/TQ.202005003
文献标志码:
A
摘要:
为了研究球形超细铜粉的液相还原制备方法,采用适中还原剂抗坏血酸和强还原剂水合肼、硼氢化钾和次亚磷酸钠分别还原硫酸铜,相比之下,抗坏血酸价格昂贵,反应体系的pH值既影响反应物相也影响产物形貌,因此反应条件不易控制;次亚磷酸钠和硼氢化钾制得的铜粉形貌不规则,分散性很差;而水合肼制得的铜粉形貌不仅为球形,而且大小均一,分散性较好。此外,还研究了缓蚀剂对增强铜粉在空气中的抗氧化性的影响,结果发现:四种缓蚀剂油酸、苯并三氮唑、明胶和阿拉伯树胶中,明胶前处理对增强铜粉在空气中的抗氧化性效果最好;而以水合肼为还原剂、明胶添加量为CuSO4·5H2O质量的5%进行前处理制备的球形超细铜粉粒径最小,可达30 nm左右,且分散性最好。
Abstract:
To study preparation of the spherical ultrafine copper powder with liquid phase reduction, moderate reducing agent vitamin C and strong reducing agent hydrazine hydrate, potassium borohydride and sodium hypophosphite were used to reduce copper sulfate respectively. In contrast, vitamin C was expensive, and the pH value of the reaction system affected both the reactant phase and the product morphology, resulting in an uncontrollable reaction condition. The copper powder prepared by sodium hypophosphite and potassium borohydride respectively present irregular morphology and poor dispersibility. While the copper powder prepared by hydrazine hydrate was not only spherical in shape, but also uniform in size and had good dispersibility. In addition, the oxidation resistance of copper powder in air was enhanced by adding corrosion inhibitor. The results showed that among the four corrosion inhibitors, oleic acid, benzotriazole, gelatin and gum Arabic, gelatin has the best effects on enhancing the oxidation resistance of copper powder in air. Among them, with hydrazine hydrate as the reducing agent, pre-processing using gelatin with the addition amount equal to 5% of the mass of CuSO4·5H2O results into the formation of spherical ultrafine copper powder with a smaller particle size, which can reach about 30 nm, and has better dispersion.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-05-04作者简介:余 珊,硕士,工程师。E-mail:395232932@qq.com引文格式:余珊,彭明,胡琴,等. 球形超细铜粉的制备及其空气中抗氧化的研究[J]. 武汉工程大学学报,2020,42(6):622-627.
更新日期/Last Update: 2020-12-17