|本期目录/Table of Contents|

[1]陈 娟,黄志良*,陈常连,等.碱式碳酸镁晶须的均相沉淀法制备及其生长机理研究[J].武汉工程大学学报,2015,37(12):16-20.[doi:10. 3969/j. issn. 1674-2869. 2015. 12. 004]
 l,l,et al.Preparation and growth mechanism of basic-magnesium carbonate whisker by a homogeneous precipitation method[J].Journal of Wuhan Institute of Technology,2015,37(12):16-20.[doi:10. 3969/j. issn. 1674-2869. 2015. 12. 004]
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碱式碳酸镁晶须的均相沉淀法制备及其生长机理研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
37
期数:
2015年12期
页码:
16-20
栏目:
资源与土木工程
出版日期:
2016-01-14

文章信息/Info

Title:
Preparation and growth mechanism of basic-magnesium carbonate whisker by a homogeneous precipitation method
文章编号:
1674-2869(2015)12-0016-05
作者:
陈 娟黄志良*陈常连李文昭徐伟荣
武汉工程大学材料科学与工程学院,湖北 武汉 430074
Author(s):
CHEN JuanHUANG Zhi-liangCHEN Chang-lianLI Wen-zhaoXU Wei-rong
School of Materials and Engineering, Wuhan Institute of Technology, Wuhan 430074, China
关键词:
碱式碳酸镁晶须均相沉淀法二维成核-台阶生长
Keywords:
basic magnesium carbonate whisker homogeneous precipitation method two-dimensional nucleation-step growth mechanism
分类号:
TB35
DOI:
10. 3969/j. issn. 1674-2869. 2015. 12. 004
文献标志码:
A
摘要:
为了研究碱式碳酸镁晶须新的制备方法,扩大其作为阻燃剂的应用,采用以六水氯化镁和尿素为原料,通过均相沉淀法成功地制备了Mg5(CO3)4(OH)2·4H2O型碱式碳酸镁晶须. 采用X射线衍射、扫描电子显微镜、红外光谱等测试手段对所得晶须进行物相、形貌和结构分析. 结果表明,当反应原料六水氯化镁与尿素的摩尔比值为1∶4,山梨醇作为有机模板剂时,在水浴时间为24 h,陈化时间为21 h,干燥时间为5 h的实验条件下,可以制备出长径比大于100,发育良好的碱式碳酸镁晶须. 采用二维成核?鄄台阶生长理论有效解释了碱式碳酸镁晶须的生长.
Abstract:
To study a new and facile preparation method, we prepared basic-magnesium carbonate whisker (Mg5(CO3)4(OH)2·4H2O) using MgCl2·6H2O and urea as raw materials by homogeneous precipitation method. The phase, morphology and structure of the whiskers were characterized by X-ray diffraction, Scanning electron microscope and Fourier transform infrared spectroscopy. The results show that the basic magnesium carbonate whisker with aspect ratio more than 100 can be prepared at the water bath time of 24 h, aging time of 21 h and the drying time of 5 h when the magnesium chloride and urea molar ratio is 1∶4 and sorbic alcohol is used as a template agent. The growth of Mg5(CO3)4(OH)2·4H2O whisker could be explained effectively by two-dimensional nucleation-step growth mechanism.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-09-03基金项目:国家自然科学基金(51374155),湖北省重点科技支撑计划(2014BCB034),湖北自然科学基金(2014CFB796)作者简介:陈娟(1992-),女,湖北公安人,硕士研究生.研究方向:功能矿物材料.* 通信联系人
更新日期/Last Update: 2016-01-12