采用固相合成工艺,制备了铁掺杂、钛掺杂及铝/钛二元掺杂三类Cr2O3颜料,利用XRD、紫外/可见/近红外分光光度计、Color CIE色度分析软件等方法对颜料物相结构、可见/近红外反射率、颜色参数等进行了测试和表征,初步探讨了Cr2O3颜料结构与近红外反射率、颜色之间的相互关联.结果表明,所有样品均呈单相刚玉结构,但结晶强度和晶粒大小随掺杂元素有所差异;相比未掺杂Cr2O3颜料,掺铁样品的近红外反射率出现下降,而掺钛Cr2O3颜料的反射率则明显提高,其中铝/钛二元掺杂样品在Al(OH)3含量3.4wt%、TiO2含量1.07wt%时,实现700～2500nm波段平均反射率87%,2500nm处最大反射率99%.掺钛Cr2O3材料近红外波段反射率的显著增加,主要归因于掺钛Cr2O3晶粒尺寸的增大以及Cr3+局域电子环境的改变.
参考文献
| [1] | Tena M A,Meseguer S,Gargori C,et al.Study of Cr-SnO2 ceramic pigment and of Ti/Sn ratio on formation and coloration of these materials.Journal of the European Ceramic Society,2007,27(1):215-221. |
| [2] | Sliwinski Tenence R,Pipoly Richard A,Blonski Robert P.Infrared Reflective Colored Pigment.US Patent 6454848,2002. |
| [3] | Gallardo A Conde,Oreal A Cruz,Angel O Zelaya.et al.Electrical and optical properties of Cr2-xTixO3 thin-films.J.Phys.D:Appl.Phys.,2008,41(20):205407-1-6. |
| [4] | Bendiganavale Ashwini k,Malshe Vinod C.Infrared reflective inorganic pigments.J.Recent Patents on Chemical Engineering,2008,1(1):67-79. |
| [5] | Thongkanluang T,Limsuwan P,Rakkwamsuk P.Preparation of IR reflective green pigment.J.Adv.Mater.Res,2008,55-57:805-808. |
| [6] | http://www.ferro.com[EB/OL],2010-03-18. |
| [7] | Li Ping,Xu Hong-Bin,Zhang Yi.et al.The effects of Al and Ba on the colour performance of chromic oxide green pigment.J Dyes and Pigments,2009,80(3):287-291. |
| [8] | 杨丽君,魏锡文,吴育全,等.氧化铬绿晶胞参数变化与颜料性能关系初探.化学通报,2003,66(3):W022-1-5. |
| [9] | 杜海燕,陈启荣,孙家跃.氧化铬着色的随角异色颜料的制备与性能研究.化学通报,2006,69(11):831-835. |
| [10] | 陈衡.红外物理学.北京:国防工业出版社.1985:144-151. |
| [11] | Bohren Craig F,Huffman Donald R.Absorption and Scattering of Light by Small Particles.New York:Wiley Professional Paperback Edition Published,1998:64-69. |
| [12] | Pailhe'N,Wattiaux A,Gaudon M,et al.Correlation between structural features and Vis-NIR spectra of a-Fe2O3 hematite and AFe2O4 spinel oxides (A=Mg,Zn).Journal of Solid State Chemistry.2008,181(5):1040-1047. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%