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| PVP对球形铝粉进行表面包覆改性的研究 | |
| 引用本文： | 胡楠,钟景明,孙本双,何力军,王立惠. PVP对球形铝粉进行表面包覆改性的研究[J]. 中国粉体技术, 2011, 17(5). DOI: 10.3969/j.issn.1008-5548.2011.05.002 |
| 作者姓名： | 胡楠 钟景明 孙本双 何力军 王立惠 |
| 作者单位： | 1. 宁夏大学物理电气信息学院,宁夏银川750021;西北稀有金属材料研究院,宁夏石嘴山753000 2. 西北稀有金属材料研究院,宁夏石嘴山,753000 3. 宁夏大学物理电气信息学院,宁夏银川,750021 |
| 摘 要： | 为防止球形铝粉在空气中腐蚀变质,采用溶液聚合法,通过硅烷偶联剂KH-550对超细铝粉进行预处理,在引发剂偶氮二异丁晴的作用下,用聚乙烯吡咯烷酮(PVP)对球形铝粉进行表面改性,形成了PVP-Al复合粒子。利用扫描电镜、能谱以及红外光谱对改性前后的铝粉进行表征分析;利用光电子能谱对复合粒子的形成原理进行分析。结果表明:复合粒子为具有核-壳结构的球形粒子,致密的PVP壳层包覆铝粒子;复合粒子的沉降率及耐腐蚀性优于原料铝粉。 |
| 关 键 词： | 球形铝粉 包覆 复合粒子 |
Study on Modification of Superfine Al Particles Coated with PVP |
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| Hu Nan,Zhong Jingming,Sun Benshuang,He Lijun,Wang Lihui. Study on Modification of Superfine Al Particles Coated with PVP[J]. China Powder Science and Technology, 2011, 17(5). DOI: 10.3969/j.issn.1008-5548.2011.05.002 | |
| Authors: | Hu Nan Zhong Jingming Sun Benshuang He Lijun Wang Lihui |
| Abstract: | In order to improve the anti-corrosionof superfine aluminum powders in water,the superfine aluminum particles coated with a polyer membrane were investigated through copolymerazation,which used PVP as modifier,ABIN as initiator.The PVP-Al particles were analyzed by scanning electron microscope(SEM),electron dispersive spectrum(EDS) and infrared spectrum(IR).The experimental principle was analyzed by XPS.It was shown that the PVP-Al composite particles were spherical with core-shell structure.A PVP-Al composite particle was composed of dense PVP shell and Al core.The anti-resistance and hydrolysis rate of PVP-Al particles were improved insignificantly by comparing with the raw Al powders. |
| Keywords: | superfine aluminum powders coating composite particles |
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