石油化工高等学校学报

石油化工高等学校学报 ›› 2011, Vol. 24 ›› Issue (3): 64-69.DOI: 10.3696/j.issn.1006-396X.2011.03.016

• 石油化工 • 上一篇    下一篇

Y2O3:Eu超细粉体的制备及其在聚丙烯中的应用研究

孟言俊,贺彬艳,郭绍辉   

  1. 中国石油大学理学院
  • 收稿日期:2011-06-16 修回日期:2011-06-20 出版日期:2011-06-25 发布日期:2011-06-25
  • 作者简介:孟言俊(1961 -), 男, 安徽肥西县, 高级工程师, 在读博士

The Preparation and Application of Y2O3:Eu Ultra-Fine Powder in Polypropylene

  1. College of Science,China University of Petroleum,Beijing 102200,P.R. China
  • Received:2011-06-16 Revised:2011-06-20 Published:2011-06-25 Online:2011-06-25

摘要: 利用微波辅助溶胶凝胶法得到纳米Y2O3 :Eu 红色荧光粉。对前驱体和试样进行了红外(FTIR)微结构分析, 从试样显微结构分析了微波辐射加热机制。借助X 射线衍射仪(XRD)、透射电镜(TEM)和荧光光谱(PL), 对所得粉体进行了表征。结果表明, 在700 ℃的温度下保温2 h 所得Y2O3 :Eu 粉体具有较佳的综合性能, 96.3%的颗粒分布在15 ~ 27 nm , 且具有较好的荧光强度。扫描电镜(S EM)照片表明, Y2O3 :Eu 粉体呈疏松状分布, 其表观软团聚尺寸小于100 nm 。考察了Y2O3 :Eu 粉体在聚丙烯(pp)中的成核、荧光和分散效果。结果表明, 所添加的微量的Y2O3 :Eu 粉体具有成核作用, 有利于粉体在pp 中均匀分散, 但pp 样品荧光强度随着粉体添加量的增加而提高。

关键词: 微波辐射 , 超细粉体 ,  Y2O3 :Eu , 分散 , 聚丙烯

Abstract:

The Y2O3:Eu red-emitting nanophosphors were prepared by microwave-assisted sol-gel process. The heating mechanism for microwave irradiation was studied to rough observation FTIR spectra of precursor and sample. The results of XRD, TEM and PL indicate that the  Y2O3:Eu powder annealed [KG*4]at 700 for 2 h [KG*4]has [KG*4]optimal [KG*4]comprehensive [KG*4]properties [KG*4]and 96.3% of particles was distributed in the range of 15~27 nm with better fluorescence intensity. The photoshop of SEM show that agglomeration size of  Y2O3:Eu powder is smaller than 100 nm with scanty sphere distribution. Moreover, the nucleation, fluorescence, and dispersion of  Y2O3:Eu ultra-fine powder in polymer materials was investigated. The results show that small amount of  Y2O3:Eu ultra-fine powder in polypropylene can induces the crystallization into β- spherulitic structure, and small amount of that is beneficial for the dispersion of powder in polypropylene, but the fluorescence intensity is enhanced with the increase of additive.

Key words: Microwave irradiation,   , Ultra-fine powder,      Y2O3:Eu,   ,  Dispersion,   , Polypropylene

引用本文

孟言俊,贺彬艳,郭绍辉. Y2O3:Eu超细粉体的制备及其在聚丙烯中的应用研究[J]. 石油化工高等学校学报, 2011, 24(3): 64-69.

MENG Yan-jun,HE Bin-yan,GUO Shao-hui. The Preparation and Application of Y2O3:Eu Ultra-Fine Powder in Polypropylene[J]. Journal of Petrochemical Universities, 2011, 24(3): 64-69.

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