将空心玻璃微珠与微纳粒径的钛铬棕颜料水浆混合后在650℃烧结,制备了可作为彩色凉颜料的核壳型结构钛铬棕包覆空心玻璃微珠.用激光粒度仪测试了水浆中钛铬棕的粒度分布.用扫描电镜、X射线衍射仪和能谱仪表征了钛铬棕包覆玻璃微珠的形貌、结构和元素组成.分别以该包覆玻璃微珠、纯玻璃微珠和颜料-玻璃微珠机械混合物为填料,与有机硅树脂制备成复合涂层.用紫外/可见/近红外分光光度计和傅里叶变换红外光谱仪测试了它们的热反射性能.结果显示,钛铬棕包覆在空心玻璃微珠表面,形成了厚500～1500nm的壳层.由钛铬棕包覆空心玻璃微珠制成的涂层的性能最好,在630～ 860 nm波长范围内的整体太阳光热反射比性能第二好的机械混合涂层高出10～14个百分点.
A core-shell structured chrome antimony titanium buff rutile-clad hollow glass microsphere (@HGM)applicable as cool pigment was prepared by mixing hollow glass microspheres with micro/nano-sized chrome antimony titanium buff rutile powder slurry and sintering at 650 ℃.The size distribution of chrome antimony titanium buff rutile powder in slurry was tested by laser particle size analyzer.The morphology,structure and elemental composition of the @HGM were characterized by scanning electron microscope,X-ray diffractometer and energy-dispersive spectrometer,respectively.Some composite coatings were prepared by mixing@HGMs,pure glass microspheres and mechanically blended pigment-glass microspheres mixture,which were used as filler,with organosilicon resin respectively.Their reflective properties were studied by UV/VIS/NIR spectrophotometer and Fourier-transform infrared spectrometer.The results showed that the thickness of chrome antimony titanium buff rutile shell on hollow glass microsphere is 500-1500 nm.The coating prepared with@HGMs has the best property.Its total solar reflectance in the wavelength range of 630-860 nm is 10-14 percentage points higher than that of the second best one,which was prepared with mechanically blended pigment-glass microspheres mixture.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%