中国塑料 ›› 2011, Vol. 25 ›› Issue (07): 58-62 .DOI: 10.19491/j.issn.1001-9278.2011.07.014

• 加工与应用 • 上一篇    下一篇

仿生自愈合微胶囊的制备和研究

李运涛 李然 何静 王志超 王慧霞   

  1. 陕西科技大学
  • 收稿日期:2011-03-31 修回日期:2011-06-18 出版日期:2011-07-26 发布日期:2011-07-26

Study on Biological Modeling Self-healing Microcapsules

LI Yuntao;LI Ran;HE Jing;WANG Zhichao;WANG Huixia   

  • Received:2011-03-31 Revised:2011-06-18 Online:2011-07-26 Published:2011-07-26
  • Contact: HE Jing

摘要: 采用原位聚合法合成了以聚脲甲醛为胶囊壁、环氧树脂为囊芯的微胶囊,并对聚脲甲醛包覆环氧树脂/正丁基缩水甘油醚的微胶囊的制备工艺进行了研究。结果表明,微胶囊制备的最佳工艺条件为:预聚体的pH值在9~10之间,预聚体的反应温度控制在60~65 ℃之间,预聚体反应时间控制在1 h;微胶囊聚合反应的pH值控制在2左右,以十二烷基苯磺酸钠作为表面活性剂,聚合反应温度控制50~60 ℃之间,聚合反应时间控制在2 h。所制备的微胶囊包覆完全,表面致密。

关键词: 正丁基缩水甘油醚, 自愈合, 微胶囊, 聚脲甲醛, 环氧树脂, 合成

Abstract: Self-healing microcapsules were synthesized by encapsulating epoxy resin /butyl glycidyl ether within the poly (urea-formaldehyde) coating via in-situ polymerization. The optimum reaction conditions for the pre-polymer were to control the pH value at 9~10, the reaction temperature at 60~65 ℃, and the reaction time at 1 h. The optimum conditions of the in-situ polymerization were the pH value of 2, the reaction temperature of 50~60 ℃ and the reaction time of 2 h with sodium dodecyl beneze sulfonate as the surfactant. The as-prepared microcapsules exhibited complete encapsulation with compact and tightly united surface.

Key words: butly glycidyl ether, self-healing, microcapsule, poly(urea-formaldehyde), epoxy resin, synthesis