华南理工大学学报(自然科学版) ›› 2011, Vol. 39 ›› Issue (11): 104-108.

• 材料科学与技术 • 上一篇    下一篇

太阳光反射材料NaZnPO4的制备与性能

苏达根 付文祥 钟明峰   

  1. 华南理工大学 材料科学与工程学院,广东 广州 510640
  • 收稿日期:2011-05-10 修回日期:2011-08-14 出版日期:2011-11-25 发布日期:2011-10-03
  • 通信作者: 苏达根(1948-) ,男,教授,博士生导师,主要从事生态环境材料与土木工程材料研究. E-mail:dgsu@ scut.edu.cn
  • 作者简介:苏达根(1948-) ,男,教授,博士生导师,主要从事生态环境材料与土木工程材料研究.
  • 基金资助:

    广东省重大科技专项( 2010A080804018)

Preparation and Performance of Solar Reflection Material NaZnPO4

Su Da-gen  Fu Wen-xiang  Zhong Ming-feng   

  1. School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2011-05-10 Revised:2011-08-14 Online:2011-11-25 Published:2011-10-03
  • Contact: 苏达根(1948-) ,男,教授,博士生导师,主要从事生态环境材料与土木工程材料研究. E-mail:dgsu@ scut.edu.cn
  • About author:苏达根(1948-) ,男,教授,博士生导师,主要从事生态环境材料与土木工程材料研究.
  • Supported by:

    广东省重大科技专项( 2010A080804018)

摘要: 以Zn( NO3)2·6H2O、H3PO4和无水碳酸钠为原料,采用直接沉淀法获得前驱体,经热处理后制得太阳光反射材料NaZnPO4,采用紫外–可见近红外分光光度计、XRD、TG/DSC 对其进行表征.结果表明: 原料的磷锌摩尔比对产物的组成起重要的作用,宜控制在1. 7 ~ 2. 0 之间; 制备NaZnPO4的热处理温度为400 ~ 800℃,热处理温度对NaZnPO4的太阳光反射性能有重要影响,其中600℃热处理所得产物的太阳光反射性能最佳,太阳光平均反射率达95. 2%.

关键词: 直接沉淀法, 热处理, 磷酸锌钠, 太阳光反射

Abstract:

A kind of solar reflection material,NaZnPO4,was prepared by heat-treating the precursor obtained via the direct precipitation,with Zn( NO3)2·6H2O,H3PO4 and anhydrous sodium carbonate as raw materials. The product was then characterized by means of UV-Vis,XRD and TG/DSC. The results show that the phosphorus-tozinc molar ratio of the raw materials plays an important role in the structure of NaZnPO4,that the appropriate phosphorus-to-zinc molar ratio ranges from 1. 7 to 2. 0,that the heat treatment temperature for preparing NaZnPO4,which is important to the solar reflection,should be controlled in the range from 400 to 800℃,and that the product with the heat treatment at 600℃ is of the best solar reflection property,with its average reflection rate being up to 95. 2%.

Key words: direct precipitation, heat treatment, sodium zinc phosphate, solar reflection