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摘要以TiCl4为原料，SnCl4为导晶剂，采用加碱中和法将TiO2前驱体沉积在云母上，制备云母钛前驱体，空气气氛中850℃煅烧2h后得到云母钛基材。再以Co（NO3）2•6H2O 和Cr（NO3）3•9H2O 为原料，采用化学共沉淀法制备铬钴绿前驱体并将其包覆在云母钛基材上,空气气氛中800℃煅烧后得到复合珠光颜料。XRD和SEM研究结果共同表明，金红石型TiO2纳米粒子均匀致密地包覆在云母上；铬钴绿粒子以尖晶石相形式均匀地包覆在云母钛表面。并研究了不同的煅烧温度、铬钴配比、包覆率、掺杂（Zn2+,Ni2+，Mg2+,Mn2+,Ca2+,Fe3+，Al3+）对复合颜料晶型、颜色和着色力等性能的影响。21679
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关键词 云母钛 铬钴绿 珠光颜料 掺杂
毕业论文设计说明书（论文）外文摘要
Title Preparation of chromium cobalt green coated mica pearlescent composite pigments
Abstract
Titania-mica precursor was prepared by a method of alkali neutralization with TiCl4 solution as the raw material and SnCl4 as the polymorphs-directing agent .And the Titania-mica was obtained after calcination in air for 2h at 850℃. Chromium cobalt green was prepared by a method of chemical co-precipitation method with Co（NO3）2•6H2O and Cr（NO3）3•9H2O as the raw materials.And the chromium cobalt green was obtained after calcination in air for 2h at 800℃.XRD and SEM studies show that Rutile TiO2 nano-particles coated on mica uniformly and densely and chrome cobalt green in spinel phase coated on the surface of titanium-mica. And the effect of different calcination temperatures,the molar ratio between chromium and cobalt,the coating efficiency and doping（Zn2+,Ni2+，Mg2+,Mn2+,Ca2+,Fe3+，Al3+）on properties of the as-made pearlescent composite pigments were also studied.
Keywords Titania-mica Chromium cobalt green pearlescent pigments doping
1 引言 1
1.1 云母珠光颜料的分类 1
1.1.1 云母钛及其改良型珠光颜料 1
1.1.2 过渡金属元素着色型珠光颜料 2
1.1.3 稀土金属元素着色型珠光颜料 2
1.2 云母珠光颜料的制备方法 2
1.2.1 液相沉积法 2
1.2.2 气相沉积法 3
1.3 云母珠光颜料性能的影响因素 4
1.3.1 掺杂 4
1.3.2 粒子复合 4
1.3.3 工艺参数 5
1.4 云母珠光颜料的表征及性能测试 5
1.4.1 结构性表征 5
1.4.2 应用性能测试 5
1.5 本课题研究内容及意义 6
2 实验 6
2.1 实验原理 6
2.1.1 云母钛珠光颜料的制备 6
2.1.2 铬钴绿包覆云母钛珠光复合颜料的制备 7
2.2 仪器与试剂 7
2.3 实验方案 9
2.3.1 铬钴绿包覆云母钛珠光复合颜料的制备 9
2.3.2 煅烧温度对复合颜料性能的影响 9
2.3.3 铬钴配比对复合颜料性能的影响 9
2.3.4 包覆率对复合颜料性能的影响 10
2.3.5 掺杂对复合材料性能的影响 10
3 结果与讨论 11
3.1 云母包覆前后表面形貌对比 11