中南大学学报（自然科学版）2018，Vol.49Issue(3)：553-559,7.DOI:10.11817/j.issn.1672-7207.2018.03.006
表面活性剂对脲醛树脂包覆含氢硅油微胶囊的微观形貌和性能的影响
Effect of surfactants on morphology and properties of microcapsules with hydrogen silicone oil encapsuled by PUF
摘要
Abstract
Microcapsules were prepared by in-situ polymerization with poly(urea-formaldehyde) (PUF) as the shell material and hydrogen silicone oil as the core material. The effect of sodium dodecyl benzene sulfonate (SDBS), gum arabic (GA) and SDBS/GA complexes on the morphology of microcapsules at different reaction time was investigated. The microcapsules were characterized by optical microscope (OM) and thermo gravimetric analysis (TGA). The core material content of microcapsules was measured by the solvent extraction method and TGA, respectively. The results show that the microcapsules prepared with SDBS exhibit irregular shapes and rough surfaces with higher core material content. By using GA as the emulsifier, the resultant microcapsules show regular shapes and smooth surfaces with a broader size distribution. The microcapsules prepared by using SDBS/GA complexes are regularly spherical and present a narrower size distribution, however, with lower core material content. The microcapsules show better thermal resistance with an initial decomposition temperature up to 229.8 ℃.关键词
表面活性剂/微胶囊/含氢硅油/脲醛树脂Key words
surfactant/microcapsule/hydrogen silicone oil/poly (urea-formaldehyde)分类
化学化工引用本文复制引用
乔俊霞,郭建华,朱智鹏..表面活性剂对脲醛树脂包覆含氢硅油微胶囊的微观形貌和性能的影响[J].中南大学学报（自然科学版）,2018,49(3):553-559,7.基金项目
国家自然科学基金资助项目(51103048) (Project(51103048) supported by the National Natural Science Foundation of China) （51103048）
