化工学报2012，Vol.63Issue(10)：3316-3323,8.DOI:10.3969/j.issn.0438-1157.2012.10.044
铬酸酐掺杂V2O5制备高红外反射率氧化铬绿颜料
High infrared reflective chromic oxide green pigment prepared by thermal decomposition of CrO3 doped with V2O5
摘要
Abstract
A CrO3 thermal decomposition process was used to prepare high infrared reflective chromic oxide green pigment. On the basis of optimized conditions of thermal decomposition of CrO3, the doping conditions and the related mechanism to prepare high infrared reflective chromic oxide green pigment were investigated. Through UV-vis-NIR, FT-IR, SEM, XRD and CIE-L*α* b* analysis, key factors such as thermal decomposition temperature and dopant were studied. In the thermal decomposition step, particle size, as well as infrared reflectance of the chromic oxide green pigment was dependent on decomposition temperature. Under the optimized conditions of 1250℃ and 0. 5 h, the infrared reflectivity of the obtained products could be as high as 90%. In the doping step, the maximum reflectivity of the chromic oxide green pigment could reach 98% with doping V2O5. As the content of the V2O5 dopant increased, the infrared reflectivity of the chromic oxide green pigment firstly increased and then decreased; conductivity and dielectric constant followed the same tendency. The mechanism showed that conductive type of the chromic oxide green pigment transformed with V2O5 addition, and change in conductivity resulted in subsequent change in absorptive and reflective capability of photon. At last, the infrared reflectance of the chromic oxide green pigment was improved.关键词
氧化铬绿颜料/红外反射性能/V2O5/颜色性能/介电常数/电导率Key words
chromic oxide green pigment/ infrared reflectivity/ V2O5/ color performance/ dielectric constant/ conductivity分类
化学化工引用本文复制引用
周祯,李平,张红玲,徐红彬,张懿..铬酸酐掺杂V2O5制备高红外反射率氧化铬绿颜料[J].化工学报,2012,63(10):3316-3323,8.基金项目
国家自然科学基金项目(50904058) （50904058）
国家高技术研究发展计划项目(2011AA060702). （2011AA060702）
