多元色素光敏变色微胶囊的制备及其在织物中的变色性能  

Preparation of multi-colorant photochromic microcapsules and their photochromic properties in fabrics

作　　者：鲁辉 蔡钦泽 张国庆[1] 周岚[1,2] 刘国金 邵敏 LU Hui;CAI Qinze;ZHANG Guoqing;ZHOU Lan;LIU Guojin;SHAO Min(Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology,Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018,China;Zhejiang Provincial Innovation Center of Advanced Textile Technology,Shaoxing,Zhejiang 312000,China;Key Laboratory of Advanced Textile Materials and Manufacturing Technology,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018,China)

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,浙江杭州310018 [2]浙江省现代纺织技术创新中心,浙江绍兴312000 [3]浙江理工大学浙江省纤维材料和加工技术研究重点实验室,浙江杭州310018

出　　处：《纺织学报》2025年第1期111-118,共8页Journal of Textile Research

基　　金：现代纺织技术创新中心(鉴湖实验室)项目(CXZX2023020HD)。

摘　　要：为解决光敏变色染料颜色变化单一且局限于无色与有色可逆变化的问题,提出了一种拓宽光敏变色染料显色范围的方法。以光敏变色染料螺噁嗪和相变溶剂硬脂酸丁酯复配物作为初始芯材,以酸性染料作为扩展染料,以密胺树脂作为壁材,采用原位聚合法制备多元色素光敏变色微胶囊,并采用丝网印花工艺将其应用在棉织物上。借助台式扫描电子显微镜、傅里叶红外光谱仪、差示扫描量热仪、热重分析仪等表征微胶囊的表面形貌、特征官能团和热性能,研究了印花织物的光敏变色性和稳定性。结果表明:优选螺噁嗪、硬脂酸丁酯与酸性染料的质量比为0.05∶50∶0.1,控制芯壁比为1∶1,制得的微胶囊具有圆球形外观,平均粒径约为3μm,包覆率可达73.4%;该变色微胶囊具有出色的热稳定性,可在不同环境温度的紫外和可见光辐照下实现粉红色与蓝色的可逆颜色变化,可赋予织物良好的光敏变色性和变色稳定性。Objective Photochromic dye is a type of intelligent material with reversible photochromic function.Most organic photochromic dyes have single color-changing color spectra,which are difficult to meet the needs of diverse color changes.In order to solve the problem that the color-changing range of photochromic dyes is narrow and the color is limited to reversible changes from colorless to colored,a method for widening the color range of photochromic microcapsules is proposed.Method Multi-colorant photochromic microcapsules were prepared by in-situ polymerization with the composite of photochromic dye spiroxazine and phase change solvent butyl stearate as the initial core material,acid dye as the extended dye,and melamine resin as the wall material.The surface morphology,characteristic functional groups and thermal properties of microcapsules were characterized using scanning electron microscope,infrared spectrometer,differential scanning calorimeter and thermogravimetric analyzer.The photochromic fabrics were prepared by screen printing using multi-colorant photochromic microcapsules as main components and fabrics as substrates,and the related color-changing properties were studied.Results The photochromic microcapsules prepared by in-situ polymerization were spherical and had good encapsulation integrity.A small number of irregular particles on the surface was self-polymerized melamine resin,and no obvious agglomeration occered between the microcapsules.The microcapsule particle size was relatively uniform,with an average particle size of about 3μm.The core material with the mass ratio of spioxazine to butyl stearate to acid dye of 0.05∶50∶0.1 was selected,and the mass ratio of the core to wall material was adjusted.When the core to wall ratio is 1∶1,the encapsulation rate of photochromic microcapsules reached 73.4%.Through the infrared spectrum analysis of the photochromic microcapsule and its components,it could be inferred that there is no chemical reaction between the core material,the extended dye and

关 键 词：光敏染料 扩展染料 变色微胶囊 丝网印花 光敏变色织物 

分 类 号：TS194.5[轻工技术与工程—纺织化学与染整工程]