摘要
荧光增白剂吸收近紫外光,发射可见光,使织物增白.通过对荧光增白剂的溶液进行一系列光学测定与分析.得出:荧光物质本身具有固定的光吸收区和荧光发射区,并有固定的最大激发波长和最大发射波长;一定浓度范围内荧光物质的吸收与浓度成正比关系;荧光量子效率不随激发光波长而变化.
Fluorescent brightening agents (FBA) absorb light - energy in the near - ultraviolet region of the spectrum and emit light - energy in the visible - light region so that they can enhance the whiteness and brightness of cloths. By carrying out a series of experiments and analyses, following results have been obtained. FBA have a fixed absorption and emission region in which both have their maximum energy wavelengths. In a certain range of concentration, the energy of absorption are positive proportional to the concentration of FBA. Fluorescent quantum efficiency has nothing to do with the wavelength of exciting light.
出处
《中国纺织大学学报》
CSCD
1999年第4期8-11,共4页
Journal of China Textile University
关键词
荧光增白剂
溶液
分光光度计
光学特性
fluorescent brightening agents, solution, spectrophotometer, fluorescence - spectrophotometer
