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1h；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2h。所制备的微胶囊包覆完全，表面致密。
Self-healing microcapsules were synthesized by encapsulating epoxy resm /butyt glyclayl ether within the poly （urea-formaldehyde） coating via in-situ polymerization. The optimum reaction conditions for the prepolymer 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.
出处
《中国塑料》
CAS
CSCD
北大核心
2011年第7期58-62,共5页
China Plastics
关键词
微胶囊
聚脲甲醛
环氧树脂
正丁基缩水甘油醚
合成
自愈合
microcapsule
poly （urea-formaldehyde）
epoxy resin
butly glycidyl ether
synthesis
self-healing
