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通过结构生色(物理生色)替代化学染料染色是织物染色研究的一个重要方向。以单分散SiO_2胶体微球作为自组装结构单元,在蚕丝织物上构建能生成结构色的SiO_2光子晶体,研究相对湿度、自组装温度、胶体微球浓度、组装溶剂以及组装时间对胶体微球在蚕丝织物上的自组装效果的影响,并应用扫描电子显微镜和紫外-可见分光光度计表征与分析蚕丝织物上光子晶体结构形貌和结构色变化。结果表明:在相对湿度60%、温度25℃、胶体微球质量分数(wt)为2.0%左右、以纯水或纯乙醇为组装溶剂的自组装条件下,SiO_2胶体微球可以在蚕丝织物上构建三维有序的SiO_2光子晶体结构,赋予蚕丝织物鲜艳均匀的结构色。
It is an important direction to study fabric dyeing that the structure color (physical color) instead of the chemical dye is dyed. Monodispersed SiO 2 colloidal microspheres were used as self-assembled structural units to construct SiO 2 photonic crystals which can generate structural color on silk fabrics. The effects of relative humidity, self-assembly temperature, concentration of colloidal microspheres, assembly solvent and assembly time on colloidal microspheres Silk fabrics on the self-assembly effect, and the use of scanning electron microscopy and UV-Vis spectrophotometer characterization and analysis of silk fabrics on the photonic crystal structure and structural color change. The results showed that under the conditions of 60% relative humidity and 25 ℃, the mass fraction of colloidal microspheres (wt) was about 2.0%, with the pure water or pure ethanol as the assembly solvent, the SiO_2 colloidal microspheres could be applied to silk fabrics Build three-dimensional ordered SiO 2 photonic crystal structure, giving the silk fabric bright and uniform structural color.