摘要
利用稀土金属吸收存储光能并再次释放的特性,采用稀土铝酸锶发光粉与水性聚氨酯混合制备的涂层剂对棉织物进行涂覆,开发具有发光功能的服用织物。研究表明,稀土铝酸锶发光粉与水性聚氨酯混合液的黏度与成膜后的断裂强度均随着稀土铝酸锶发光粉含量的增加呈下降的趋势,当稀土铝酸锶发光粉含量大于20%时,下降速率逐渐增大;当稀土铝酸锶发光粉含量为30%时,涂层织物的团聚现象明显,因此,需要控制稀土铝酸锶发光粉含量在25%以内,可兼顾涂层织物的服用性能。涂层织物的荧光光谱在490nm处,顶峰位置随着稀土铝酸锶发光粉含量的增加向左迁移。稀土铝酸锶发光粉含量的增加能提高涂层织物的亮度,改善余辉衰减,染色限制了涂层织物的余辉性能。因此,合理控制稀土铝酸锶发光粉的含量有利于稀土金属基涂层织物的开发与应用。
Using the properties of rare earth metals to absorb and store light energy and release it again,the coating agent which was prepared by mixing rare earth strontium aluminate luminescent powder with waterborne polyurethane was used to coat cotton fabrics.The research showed that the viscosity and breaking strength after film formation of the mixture of rare earth strontium aluminate luminescent powder and waterborne polyurethane both showed a decreasing trend with the mass fraction of rare earth strontium aluminate luminescent powder increasing.When the mass fraction of rare earth strontium aluminate luminescent powder exceeded 20%,the viscosity and breaking strength of mixed film decreasing rate further was increased,and exceeding 30%,the agglomeration phenomenon in coated fabric surface was obvious.The wear properties of the coated fabric could be taken into account within 25%.The fluorescence spectrum of the coated fabric was at 490 nm,and the peak position was migrated to the left with the mass fraction of rare earth strontium aluminate luminous powder increasing.The brightness of the coated fabrics could be increased and the decay of the afterglow could be improved by increasing the mass fraction of rare earth strontium aluminate luminescent powder,while the afterglow properties of the coated fabric would be limited by dyeing.Analysis was showed that reasonable control of the mass fraction of rare earth strontium aluminate luminescent powder was beneficial to the development and application of rare earth metal-based coated fabrics.
作者
贺晓亚
HE Xiaoya(Office of Academic Affairs,Jiangxi Institute of Fashion Technology,Nanchang,Jiangxi 330201,China)
出处
《塑料》
CAS
CSCD
北大核心
2024年第5期48-52,共5页
Plastics
基金
2021年度江西省教育厅科学技术研究项目(GJJ212403)。
关键词
稀土
荧光光谱
余辉
断裂强力
悬垂性
折皱回复性
染色
rare earth
fluorescence spectrum
afterglow
breaking strength
drape
crease recovery
dye
