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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (24): 3028-3032.DOI: 10.6023/A1106302 上一篇    下一篇

研究简报

纳米Fe2O3/端羟基聚丁二烯(HTPB)复合粒子的制备与表征

胡磊1, 马振叶*,1,2, 纪明卫1, 张利雄*,1   

  1. (1南京工业大学材料化学工程国家重点实验室 南京 210009)
    (2南京师范大学化学与材料科学学院 南京 210097)
  • 投稿日期:2011-06-30 修回日期:2011-07-29 发布日期:2011-08-26
  • 通讯作者: 马振叶 E-mail:mzynjust@163.com
  • 基金资助:

    国家自然科学基金;江苏省自然科学基金;南京工业大学材料化学工程国家重点实验室开放课题基金

Preparation and Characterization of Fe2O3/HTPB Composite Nanoparticle

Hu Lei1; Ma Zhenye*,1,2; Ji Mingwei1; Zhang Lixiong*,1   

  1. (1 State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009)
    (2 College of Chemical and Material Science, Nanjing Normal University, Nanjing 210097)
  • Received:2011-06-30 Revised:2011-07-29 Published:2011-08-26
  • Contact: zhen-ye E-mail:mzynjust@163.com

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为改善纳米Fe2O3在固体推进剂中的分散性, 以端羟基聚丁二烯(HTPB)和异氟尔酮二异氰酸酯(IPDI)为包覆和固化材料, 分别采用直接共混法和分步共混法制得纳米Fe2O3/HTPB复合粒子. 采用HRTEM, TGA, FTIR和XRD等手段表征了复合粒子的结构, 对比了复合前后纳米Fe2O3的分散性, 测量了HTPB包覆量和包覆层厚度. 结果表明, 这两种方法均能实现HTPB对纳米Fe2O3物理包覆, 但分步共混法明显优于直接共混法|在分步共混法制得的纳米Fe2O3/ HTPB复合粒子中, 内层的纳米Fe2O3分散性好, 外层HTPB厚度均一. 复合粒子亲油性结果表明, 将纳米Fe2O3与HTPB进行复合, 可有效改善纳米Fe2O3在固体推进剂中的分散性.

关键词: Fe2O3, HTPB, 复合粒子, 固体推进剂

To improve the dispersion of Fe2O3 nanoparticles in solid propellant, the Fe2O3/hydroxyl-terminated polybutadiene (HTPB) composite nanoparticles were prepared by one-step blending (OSB) method and two-step blending (TSB) method, respectively. The HRTEM, TGA, FTIR and XRD were used to characterize the structure of the resultant composite nanoparticles. It was observed that HTPB could be physically coated on the surface of the Fe2O3 nanoparticles with both the two methods. Whereas the composite nanoparticles prepared by TSB method had better structure, in which the Fe2O3 nanoparticles exhibited better dispersion and the depth of the HTPB was uniform. After the composite process for the hydrophilic Fe2O3, the composite nanoparticles showed hydrophobicity. As a result, it can be deduced that the Fe2O3 nanoparticles in Fe2O3/HTPB composite nanoparticles had better dispersion in solid propellant.

Key words: Fe2O3, HTPB, composite nanoparticles, propellant