采用化学沉积法使TiO2以纳米粒子的形式包覆于空心玻璃微珠表面,成功制备了TiO2纳米晶/空心玻璃微珠复合填料.分别用扫描电镜(SEM)及紫外可见近红外分光光度计对产物进行了晶体形貌观察及光反射性能测试.结果表明:TiO2在空心玻璃微珠表面包覆效果良好,且经过热处理后空心玻璃微珠破损率很低,二氧化钛纳米晶尺寸为5～50 nm,膜层厚度为50～500 nm;光谱分析表明:该复合粉体对可见光和近红外波段的太阳光辐射具有很高的反射率(＞95%).将改性空心微珠、空心玻璃微珠及国外较好的玻璃微珠分别作为填料制备隔热涂料,光谱分析表明:以改性微珠作为填料制备的涂料,漆膜对太阳光主要能最波段(500～1500 nm)的光反射性能得到显著提高,当涂料与改性微珠质量比为100:15时,漆膜的光反射效果最佳,平均光反射率高于85%,该性能指标优于空心玻璃微珠及国外同类产品.
参考文献
| [1] | 陈国栋,涂伟萍,程江.太阳热反射涂科的研究[J].涂料工业,2002(01):3-5. |
| [2] | 夏正斌,涂伟萍,杨卓如,陈焕钦.建筑隔热涂料的研究进展[J].精细化工,2001(10):599-602. |
| [3] | 王立华.薄层防水保温一体化涂料的研制[J].涂料工业,2007(04):46-47. |
| [4] | Grunlan JC.;Grunlan MA.;Gerberich WW.;Francis LF.;Ma Y. .Monodisperse latex with variable glass transition temperature and particle size for use as matrix starting material for conductive polymer composites[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(16):6913-6921. |
| [5] | PITKANEN V;TIKKANEN J;PAAJANEN et al.Processing of spherical bioactive glass particles[J].Journal of Aerosol Science,1999,26(05):831-832. |
| [6] | Jiang Pei-Xue;Ren Ze-Pei;Wang Bu-Xuan;Wang Zhan .Experimental research of fluid flow and convection heat transfer in plate channels filled with glass or metallic particles[J].Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics,1999(1):45-54. |
| [7] | R. Reisfeld .Nanosized semiconductor particles in glasses prepared by the sol-gel method: their optical properties and potential uses[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2002(1/2):56-61. |
| [8] | NEWMAN K A;STOLZENBACH K D .Kinetics of aggregation and disaggregation of titanium dioxide particles and glass beads in a sheared fluid suspension[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,1996,107(02):189-203. |
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%