原位聚合法热致变色微胶囊的制备及性能研究  

Preparation and property of thermochromic microcapsule by in-situ polymerization

作　　者：毛冬宇 刘红茹[1] 王晓春[1] 孙田田 陈晓晗 Mao Dongyu;Liu Hongru;Wang Xiaochun;Sun Tiantian;Chen Xiaohan(Beijing Key Laboratory of Clothing Materials R&-D and Assessment,Beijing Engineering Research Center of Textile Nanofiber,Beijing Institute of Fashion Technology,Beijing 100029)

机构地区：[1]北京服装学院服装材料研究开发与评价北京市重点实验室北京市纺织纳米纤维工程技术研究中心,北京100029

出　　处：《化工新型材料》2021年第4期108-111,共4页New Chemical Materials

基　　金：北京市教委项目(KM201910012009)。

摘　　要：以结晶紫内酯、双酚A和十四醇制备的热致变色复配物作为芯材,以三聚氰胺-甲醛树脂作为壁材,通过原位聚合法制备热致变色微胶囊。通过对乳化转速、乳化剂浓度和芯壁比这三个因素进行单因素实验,并以包覆率和粒径作为判断依据,确定了制备微胶囊的优化条件。通过对优化条件下的微胶囊进行DSC、FT-IR和SEM测试,分析了微胶囊的形貌、化学组成和热稳定性能。Thermochromic complexes were prepared by crystal violet lactone,bisphenol A and tetradecanol.Thermochromic complexes were encapsulated by melamine-formaldehyde resin as core material.Thermochromic microcapsule was prepared by in-situ polymerization.In order to study the influencing factors of the coating process,three factors including the emulsification speed,emulsifier concentration and core/shell ratio were designed.The optimal conditions for the preparation of microcapsules were determined by analyzing the encapsulation ratio and particle size of microcapsules.The morphology,chemical composition and thermal stability of microcapsules were analyzed by differential scanning calorimetry(DSC),infrared spectroscopy and scanning electron microscopy for microcapsules prepared under the optimal conditions.

关 键 词：原位聚合法 热致变色微胶囊 三聚氰胺-甲醛树脂 

分 类 号：TB34[一般工业技术—材料科学与工程]