Volume 32 Issue 06
Jun.  2006
Turn off MathJax
Article Contents
Li Zhiqiang. Preparation of magnesium hydroxide flame retardant via MgCl2-NH3·H2O synthesis and hydrothermal modification treatment methods[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(06): 662-666. (in Chinese)
Citation: Li Zhiqiang. Preparation of magnesium hydroxide flame retardant via MgCl2-NH3·H2O synthesis and hydrothermal modification treatment methods[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(06): 662-666. (in Chinese)

Preparation of magnesium hydroxide flame retardant via MgCl2-NH3·H2O synthesis and hydrothermal modification treatment methods

  • Received Date: 08 Jun 2005
  • Publish Date: 30 Jun 2006
  • In order to solve the problem that the Mg(OH)2 is incompatible with the polymer, the two steps reaction of high dispersive Mg(OH)2 preparation, synthetic reaction and hydrothermal modification treatment, was studied. The effect of the synthetic reaction temperature, hydrothermal modification temperature and time was investigated for preparation of Mg(OH)2 flame retardant with large crystalline structure and small specific surface area. The experimental results indicate that the growth direction of Mg(OH)2 crystal is changed and the regular hexagonal plates of Mg(OH)2 with uniform particle size and high dispersion characteristic are formed after the hydrothermal modification treatment. With the increasing MgCl2 concentration and/or feeding excessive NH3·H2O, percent conversion rates of raw materials are discussed. The results show some new technologies should be studied for increasing percent conversion of raw materials when synthetic reaction is equivalent.

     

  • loading
  • [1] 欧育湘. 国外阻燃剂发展动态及发展我国阻燃剂工业之浅见 . 精细与专用化学品,2003,11(2):3-6 Ou Yuxiang. Development trend of flame retardant abroad and suggestion on development of flame retardant industry in China [J]. Fine and Specialty Chemicals, 2003, 11(2):3-6(in Chinese) [2] 梁诚. 我国阻燃剂生产现状与发展趋势[J]. 化工新型材料,2001,29(8):5-7 Liang Cheng. Development trend and production situation of fire retardant in China [J]. New Chemical Material, 2001, 29(8):5-7(in Chinese) [3] Kitamura T, Sakane K, Wada H. Formation of needle crystals of magnesium pyroborate [J]. Journal of Materials Science Letters, 1988, 7:467-469 [4] Otaka S, Matsunami T, Tasaka Y. Fibrous anhydrous magnesium oxysulfate and process for the preparation:USA, 5326548 . 1994-07-05 [5] Hirose T, Miyata S, Anabuki H. High-activity and high-dispersibility magnesium hydroxide and process for the production thereof:Japan, 2111625 . 1990-04-25 [6] Miyata S, Kuroda M, Okada S. Synthetic magnesium hydroxide having novel structure:Japan,2199019 . 1990-08-07 [7] Cook M, Harper J F. The influence of magnesium hydroxide morphology on the crystallinity and properties of filled polypropylene [J]. Advances in Polymer Technology, 1998, 17(1):53-62 [8] Turek M, Gnot W. Precipitation of magnesium hydroxide from brine [J]. Industrial & Engineering Chemistry Research, 1995, 34(1):244-250 [9] 李志强,向兰,魏飞. 阻燃级氢氧化镁的阻燃消烟机理及制备方法[J]. 海湖盐与化工,2004, 33(2):1-3 Li Zhiqiang, Xiang Lan, Wei Fei. Fire resistant & smoke vanishing mechanism and production method of flame retardant type magnesium hydroxide [J]. Sea-Lake Salt and Chemical Industry, 2004, 33(2):1-3(in Chinese) [10] 李志强,吴庆流,向兰,等. 温度对氢氧化镁阻燃剂制备影响的研究 . 海湖盐与化工,2004, 33(5):1-4 Li Zhiqiang, Wu Qingliu, Xiang Lan, et al. Studies on preparation of flame retardant Mg(OH)2 in a large scale experimental set-up with different temperature[J]. Sea-Lake Salt and Chemical Industry, 2004, 33(5):1-4(in Chinese) [11] 李少康. 无机镁铝阻燃剂及其应用发展趋势浅析[J]. 无机盐工业,2003,35(3):11-12 Li Shaokang. Application trend of inorganic Mg(OH)2-Al(OH)3 flame retardant [J]. Inorganic Chemicals Industry, 2003,35(3):11-12(in Chinese)
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(3781) PDF downloads(1182) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return