西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (5): 126-129.DOI: 10.3863/j.issn.1000-2634.2007.05.35

• 油气化学工程与化工 • 上一篇    下一篇

聚氨酯/钛酸钡杂化材料及介电性质研究

石智强1a 季宁宁1b 卿大勇2

  

  1. 1. 泰山学院: a.材料与化学工程系;b.化学系,山东 泰安 271000;2.西南石油大学化学化工学院, 四川 成都 610500
  • 收稿日期:2006-11-29 修回日期:1900-01-01 出版日期:2007-10-20 发布日期:2007-10-20
  • 通讯作者: 石智强

PREPARATION AND DIELECTRIC PROPERTIES OF PU/ BATIO3 HYBRID MATERIALS

SHI Zhi-qiang1a JI Ning-ning1b Qing Da-yong2   

  1. Dept of Material Sci and Chemical Eng, Taishan University,Taian Shandong 271000, China
  • Received:2006-11-29 Revised:1900-01-01 Online:2007-10-20 Published:2007-10-20
  • Contact: SHI Zhi-qiang

摘要: 通过溶胶-凝胶法制备了一种新型的聚氨酯/钛酸钡(PU/BaTiO3 )杂化材料——不同钛酸钡含量的聚氨酯/钛酸钡杂化材料。通过红外光谱(FTIR)、扫描电镜(SEM)和光电子能谱(XPS)等手段,考察了杂化材料的结构与性能;详细研究了溶胶-凝胶过程的机理以及微波辐射后杂化材料的介电性能。结果表明:通过溶胶-凝胶法制备的PU/BaTiO3杂化材料中PU和BaTiO3形成了较强的化学作用,而不是简单的共混;BaTiO3较均匀分散在杂化材料中,同时随着BaTiO3含量的增加,材料的介电常数也逐渐增加。指出了该研究在油气田领域的应用前景及意义。

关键词: 溶胶-凝胶, PU/BaTiO3, 微波辐射, 制备, 介电性能, 杂化材料

Abstract: PU/BaTiO3 hybrid materials are successfully prepared by sol-gel process. The structure and properties of the hybrid materials are investigated by using FTIR,SEM and XPS. The mechanism of the sol-gel process is also studied. Furthermore, the dielectric properties of PU/BaTiO3 hybrid materials radiated by microwave are studied. Result and conclusion are that Polyurethane and BaTiO3 in the PU/BaTiO3 hybrid materials prepared by sol gel process are incorporated by chemical bond.They are not simply mixed. BaTiO3 particles are uniformly dispersed in the PU/BaTiO3 hybrid materials. The dielectric properties of PU/BaTiO3 hybrid materials increases as the increase of BaTiO3 amount

Key words: sol-gel, PU/ BaTiO3, microwave radiation preparation, dielectric properties, Hybrid materials

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