| 粉煤灰微珠-Ag复合颗粒的制备工艺和分析 |
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| 引用本文： | 王宇飞,严捍东.粉煤灰微珠-Ag复合颗粒的制备工艺和分析[J].化工进展,2013,32(3):634-638. |
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| 作者姓名： | 王宇飞 严捍东 |
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| 作者单位： | 1.华侨大学材料科学与工程学院，福建 厦门 361021；2华侨大学土木工程学院，福建 厦门 361021 |
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| 基金项目： | 国家自然科学基金(51078156);福建省重大专项专题(2008HZ003-1);泉州市科技计划重大项目(2008ZD14_5) |
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| 摘 要： | 采用化学镀的方法，以银氨溶液为镀液，甲醛为还原剂，按照一定的工艺过程对粉煤灰微珠进行表面镀银处理，得到了粉煤灰微珠-Ag复合颗粒。同时借助激光粒径分析仪、X射线衍射仪、场发射扫描电子显微镜、X射线能谱仪等检测设备对复合颗粒的粒径分布、化学成分、镀层表面形貌和结构进行了分析。对复合微珠进行保温隔热性能测试，掺镀银微珠的涂料比原微珠的涂料温度低约4℃。结果表明，按照设定的工艺过程，可以成功制备出具有保温隔热低辐射功能的粉煤灰微珠-Ag复合颗粒，作为一种功能性骨料有望用于建筑物外围护结构表面的砂浆或涂料中以降低对远红外热的辐射能力。
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| 关 键 词： | 粉煤灰微珠 化学镀银 复合颗粒 |
Synthesis and analysis of fly-ash microspheres-Ag composite particles |
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| WANG Yufei,YAN Handong.Synthesis and analysis of fly-ash microspheres-Ag composite particles[J].Chemical Industry and Engineering Progress,2013,32(3):634-638. |
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| Authors: | WANG Yufei YAN Handong |
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| Affiliation: | 1School of Materials Science and Engineering，Huaqiao University，Xiamen 361021，Fujian，China; 2School of Civil Engineering，Huaqiao University，Xiamen 361021，Fujian，China |
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| Abstract: | Ag coated composite microspheres were synthesized on fly ash microspheres matrix by chemical plating with Tollens’ reagent and formaldehyde. The properties of composite microspheres，including size distribution，chemical composition，surface morphology and structure of coating layer were characterized by laser particle size analyzer，SEM，XRD，and EDS. Testing on insulation properties showed that the temperature of Ag coated composite microspheres coating was lower by four degrees than original fly-ash microspheres coating. Fly-ash microspheres-Ag composite particles with thermal insulation properties could be produced according to the proposed process，and the composite particles could reduce building energy consumption if it was used for building surface. |
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| Keywords: | fly-ash microspheres chemical silver plating composite particles |
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