侯志青,刘东州,康艳霜.包覆量对铝酸锶复合包覆效果的影响[J].表面技术,2014,43(2):29-31,65.
HOU Zhi-qing,LIU Dong-zhou,KANG Yan-shuang.Impact of Coating Amount on the Composite Encapsulation Effect of Strontium Aluminate[J].Surface Technology,2014,43(2):29-31,65 |
| 包覆量对铝酸锶复合包覆效果的影响 |
| Impact of Coating Amount on the Composite Encapsulation Effect of Strontium Aluminate |
| 投稿时间：2013-10-22 修订日期：2013-12-12 |
| DOI： |
| 中文关键词: 铝酸锶 复合包覆 SiO2 膜 Al2O3 膜 |
| 英文关键词:strontium aluminate encapsulation SiO2film Al2O3 film |
| 基金项目:保定市科技局基金项目支持(13ZR061) ;河北省留学回国人员择优资助基金(20120322) |
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| 中文摘要: |
| 目的 对铝酸锶进行复合包覆处理,以提高荧光粉的抗水解性能。 方法 采用液相水解法在铝酸锶表面包覆 SiO2/ Al2O3 膜,并对膜层进行耐水性、发光性能测试及形貌分析,研究包覆量对包覆效果的影响。 结果 包覆量对包膜效果有着重要的影响。 包覆量太低,荧光粉的耐水性能受到限制,很容易发生水解;包覆量太高,会影响荧光粉的发光性能,发光亮度降低。 结论 要想得到包膜效果较好的产品,SiO2 和 Al2O3 占铝酸锶的质量百分比最好控制在 5% 左右。 |
| 英文摘要: |
| Objective Composite coating treatment was conducted for strontium aluminate, in order to improve the hydrolytic resistance of fluorescent powder. Methods Liquid hydrolysis method was used to coat the surface of strontium aluminate with SiO2/Al2O3 film, which was then analyzed for water resistance, luminescence performance and morphology. The impact of the coating amount on the encapsulation effect was studied. Results The coating amount showed very important impact on the encapsulation effect. When the film layer was too thin,the water-resistance of the fluorescent powder was limited; when the film layer was too thick,the luminescence of the fluorescent powder was limited. Conclusion Good samples could be obtained if the mass ratio of SiO2and Al2O3 in strontium aluminate could be controlled at around 5% . |
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