物理化学学报 >> 2009, Vol. 25 >> Issue (07): 1443-1448.doi: 10.3866/PKU.WHXB20090724

研究论文 上一篇    下一篇

α-Al2O3纳米片的自燃烧法控制合成及其抛光性能

尹晓光, 张琪凯, 刘金库, 钟新华, 柴瑞, 连加松, 柴春芳   

  1. 华东理工大学化学系, 结构可控先进功能材料及其制备教育部重点实验室, 上海 200237|浙江超微细化工有限公司, 浙江 乐清 325611
  • 收稿日期:2009-03-03 修回日期:2009-04-14 发布日期:2009-06-26
  • 通讯作者: 刘金库 E-mail:jkliu@ecust.edu.cn

Polishing Property of α-Al2O3 Nanoflakes Prepared by Self-Burning Method

YIN Xiao-Guang, ZHANG Qi-Kai, LIU Jin-Ku, ZHONG Xin-Hua, CHAI Rui, LIAN Jia-Song, CHAI Chun-Fang   

  1. Laboratory for Advanced Materials, Department of Chemistry, East China University of Science and Technology, Shanghai 200237, P. R. China|Zhejiang Ultrafine Powders&Chemicals Co. Ltd., Yueqing 325611, Zhejiang Province, P. R. China
  • Received:2009-03-03 Revised:2009-04-14 Published:2009-06-26
  • Contact: LIU Jin-Ku E-mail:jkliu@ecust.edu.cn

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摘要：

以硝酸铝和甘氨酸为原料, 采用自燃烧法, 在不改变制备工艺的前提下, 通过调整原料的配比, 成功实现了α-Al2O3由纳米粒子到纳米片的可控合成, 获得了分散性良好、尺寸均一的α-Al2O3纳米片. 并通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)、傅里叶变换红外(FTIR)光谱、热重-差示热分析法(TG-DTA)等手段对产物形貌、结构及前驱物的热性质等进行了研究. 系统探讨了α-Al2O3纳米材料不同形貌和尺寸对其抛光性能的影响, 结果表明, 尺寸小且为片状纳米结构的α-Al2O3具有最佳抛光性能. 这些实验结果对于α-Al2O3纳米材料的工业生产及其在抛光领域的实际应用具有借鉴意义.

关键词: 氧化铝, 控制合成, 自燃烧, 抛光性能

Abstract:

α-Al2O3 nanoflakes with good dispersion and uniform size were controllably synthesized using a self-burning method under similar conditions and with aluminum nitrate and glycin as raw materials. Product structure was studied by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy, etc. Thermodynamic properties of the precursor were studied using thermogravimetry-differential thermal analysis (TG-DTA). The effects of different morphologies and sizes of α-Al2O3 nanomaterials on their polishing property were investigated for the first time. Results of the polishing study indicate that the small size nanoflakes with a high purity quotient have the best polishing property compared to other α-Al2O3 materials. This study is expected to have potential value for the industrial production and practical application of these α-Al2O3 nanomaterials in the polishing field.

Key words: Alumina, Controllable synthesis, Self-burning, Polishing property