有机分散剂对球形氧化铝前驱体形貌的影响

doi:10.12068/j.issn.1005-3026.2014.11.006

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (11): 1544-1547.DOI: 10.12068/j.issn.1005-3026.2014.11.006

有机分散剂对球形氧化铝前驱体形貌的影响

徐晓娟，孙旭东，李晓东，刘绍宏

(东北大学材料与冶金学院，辽宁沈阳110819)

收稿日期:2013-11-04 修回日期:2013-11-04 出版日期:2014-11-15 发布日期:2014-07-03
通讯作者: 徐晓娟
作者简介:徐晓娟(1977-)，女，辽宁朝阳人，东北大学博士研究生；孙旭东(1961-)，男，吉林磐石人，东北大学教授，博士生导师；李晓东(1971-)男，新疆木垒人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(U1302272，50972025，51102040)；中央高校基本科研业务费专项资金资助项目(N100702001，N110802001)；稀贵金属综合利用新技术国家重点实验室开放课题(SKL-SPM-201206，SKM-SPM-201214).

Influence of Organic Dispersant on Morphology of Spherical Alumina Precursors

XU Xiaojuan， SUN Xudong， LI Xiaodong， LIU Shaohong

School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China.

Received:2013-11-04 Revised:2013-11-04 Online:2014-11-15 Published:2014-07-03
Contact: SUN Xudong
About author:-
Supported by:
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摘要/Abstract

摘要： 采用均匀沉淀法在较低浓度下制备的氧化铝前驱体呈单分散球形，在提高浓度后发生团聚并偏离球形.在反应物中加入聚乙烯吡咯烷酮(PVP)及聚乙烯醇(PVA)作为有机分散剂，可以改善粉体形貌和团聚状态.结果表明:1%的PVP可以有效改善粉体的团聚状态，但粉体粒度分布不均匀，继续增加PVP的用量使团聚现象加剧.PVA则能改善前驱粉体的形貌和粒度分布.当同时加入1%PVP和1%PVA其作用效果优于单独加入时，所制得的氧化铝前驱体呈球形无定型态，粒度约850nm.

关键词: 均匀沉淀法, 分散剂, PVP, PVA, 氧化铝前驱体

Abstract: Monodispersed spherical alumina precursors were prepared by homogeneous precipitation method at very low concentration. Increasing concentration leaded to aggregation and nonspherical powders. Polyvinylpyrrolidone (PVP) and polyvinyl alcohol(PVA)were added as organic dispersants to improve the morphology. The results showed that 1% PVP can improve the state of aggregation， but with the increasing of PVP amount， the dispersing effect will be worse. PVA can improve the morphology and size distribution of the presursors. The best effect is obtained when 1% PVP and 1% PVA are used together， and the precursors are amorphous and spherical with diameter of 850nm.

Key words: homogeneous precipitation, dispersant, polyvinylpyrrolidone(PVP), polyvinyl alcohol(PVA), alumina precursor

中图分类号:

TB321

徐晓娟，孙旭东，李晓东，刘绍宏. 有机分散剂对球形氧化铝前驱体形貌的影响[J]. 东北大学学报:自然科学版, 2014, 35(11): 1544-1547.

XU Xiaojuan， SUN Xudong， LI Xiaodong， LIU Shaohong. Influence of Organic Dispersant on Morphology of Spherical Alumina Precursors[J]. Journal of Northeastern University Natural Science, 2014, 35(11): 1544-1547.

参考文献

［1］王静，童小翠，许永，等.不同沉淀剂制备纳米氧化铝粉的研究［J］.无机盐工业.2011，43(6):14-16，23.(Wang Jing，Tong Xiaocui，Xu Yong，et al.Study on preparation of nanosized alumina powder with different precipitants［J］.Inorganic Chemicals Industry，2011，43(6):14-16，23.)
[2]Sarikaya Y，Ada K，Alemdaroglu T，et al.The effect of Al3+ concentration on the properties of alumina powders obtained by reaction between aluminum sulphate and urea in boiling aqueous solution［J］.Journal of European Ceramic Society，2002，22:1905-1910.
[3]Karim M R，Rahman M A，Miah M A J，et al.Synthesis of alumina particles and surface characterization［J］.Open Colloid Science Journal，2011，4:32-36.
[4]Ogihara T，Nakujina H，Yanagawa T，et al.Preparation of monodisperse，spherical alumina powders from alkoxides［J］.Journal of American Ceramic Society，1991，74(9):2263.
[5]Liu H Y，Ning G L，Gan Z H，et al.A simple procedure to prepare spherical αalumina powders［J］.Materials Research Bulletin，2009，44:785-788.
[6]Zhang L M，Lu W C，Yan L M.Hydrothermal synthesis and characterization of core/shell AlOOH microspheres［J］.Microporous and Mesoporous Materials，2009，119:208-216.
[7]余忠清，赵秦生，张启修.溶胶-凝胶法制备超细球形氧化铝粉末［J］.无机材料学报，1994，9(4):475-479.(Yu Zhongqing，Zhao Qinsheng，Zhang Qixiu.Preparation of ultrafine spherical alumina powders by solgel process［J］.Journal of Inorganic Materials，1994，9(4):475-479.)
[8]Ogawa M，Kaiho H.Homogeneous precipitation of uniform hydrotalcite particles［J］.Langmuir，2002(18):4240-4242.
[9]Kim J H，Choi W C，Kim H Y，et al.Preparation of monodispersed mixed metal oxide micro hollow spheres by homogeneous precipitation in a micro precipitator［J］.Powder Technology，2005，153:166-175.
[10]Kundu T K，Kark N，Barik P，et al.Optical properties of ZnO nanoparticles prepared by chemical method using poly(vinyl alcohol)(PVA)as capping agent［J］.International Journal of Soft Computing and Engineering，2011，1:19-24.
[11]Kong J，Chao B X，Wang T，et al.Preparation of ultrafine spherical AlOOH and Al2O3 powders by aqueous precipitation method with mixed surfactants［J］.Powder Technology，2012，229:7-16.
[12]Didymus J M，Oliver P，Mann S，et al.Influence of low molecular weight and macromolecular organic additive on the morphology of calcium carbonate［J］.Journal of Chemistry Society，Faraday Transaction，1993，89:2891-2900.

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有机分散剂对球形氧化铝前驱体形貌的影响

Influence of Organic Dispersant on Morphology of Spherical Alumina Precursors

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