| 高分子保护的铜超微粒子分散液的制备 |
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| 引用本文： | 赵斌,高宗明,鲍琼.高分子保护的铜超微粒子分散液的制备[J].石油化工,1993(3). |
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| 作者姓名： | 赵斌 高宗明 鲍琼 |
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| 作者单位： | 华东化工学院化学系，华东化工学院化学系，华东化工学院化学系 上海 200237，上海 200237，上海 200237 |
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| 摘 要： | 探讨了在空气中制备高分子保护的铜超微粒子分散液的方法和反应条件。在PVP(吡咯烷酮)存在下,用CuCl_2(2.0—6.7mmol/1)与过量肼以一定的加料方式并控制pH在7—8等条件下进行反应。所得的分散液中铜的平均粒径为43nm,吸收曲线在580nm处有特征峰。该分散液具有良好的稳定性,密闭保存6个月后铜未氧化。文中也提及催化剂的应用。
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| 关 键 词： | 铜超微粒子 高分子保护 胶体分散液 |
Preparation of Polymer-Protected Colloidal Dispersions of Ultrafine Copper Particles |
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| Zhao Bin,Gao Zongming and Bao Qiong.Preparation of Polymer-Protected Colloidal Dispersions of Ultrafine Copper Particles[J].Petrochemical Technology,1993(3). |
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| Authors: | Zhao Bin Gao Zongming and Bao Qiong |
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| Abstract: | The paper studies the methods and reaction conditions for preparation of polymer-protected colloidal dispersions of ultrafine copper particles in the air. It uses CUCl_2(2. 0—6. 7mmol/l), in the presence of polyvinyl pyrrolidone, to react with an excess of hydrazine with the pH value being controlled at 7—8. The average diameter of the ultrafine copper particle in the dispersions is 43nm. There is a characteristic peak in 580nm on the absorbance curve. The dispersions have a good stability. The copper remains in an unoxidized state after 6 months storage in a sealed container. The paper also mentions the application of catalysts. |
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| Keywords: | ultrafine copper particles polymer protection colloidal dispersion |
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