Journal of South China University of Technology (Natural Science Edition) ›› 2007, Vol. 35 ›› Issue (12): 107-110.

• Materials Science & Technology • Previous Articles     Next Articles

Hydrothermal Synthesis and Flame-Retardant Properties of 4ZnO • B2O3 • H2 O Microrods

Zhou Jie  Su Da -gen  Zhong Ming-feng   

  1. Key Laboratory of Special Functional Materials and Advanced Manufacturing Tech. of the Ministry of Education , South China Univ. of Tech. , Guangzhou 510640 , Guangdong , China
  • Received:2007-09-18 Online:2007-12-25 Published:2007-12-25
  • Contact: 周杰(1975-) ，女，博士，主要从事微纳米元机非金属材料研究. E-mail:zhoujzj@yahoo.com.cn
  • About author:周杰(1975-) ，女，博士，主要从事微纳米元机非金属材料研究.
  • Supported by:

    广州市科技计划项目( 2007Z3 -D0241 )

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Abstract:

Well-dispersed 4ZnO • B2O3 • H2 Omicrorods were prepared via the hydrothermal synthesis from zinc nitrate and boric acid , with triethanolamine as the surfactant. The phase , composition , surface structure and morphology of the product were then analyzed by means of powder X-ray diffraction , TG-DSC , IR , SEM and TEM. The results indicate that (1) The diameter and length of the well-dispersed product are 0.2 - 0.5μm and 5 -10μm ，respectively; (2) as for the poplar wood powder treated with 10% of zinc borate microrods , the limit oxygen index reaches 43. 2 and the residual charcoal ratio increases by 18. 69%， as compared with that of the powder without zinc borate. The results clearly show that zinc borate microrods are of fine flame-retardant properties.

Key words: zinc borate, microstructure, flame-retardant property, hydrothermal synthesis