中华医学超声杂志

应用化学 ›› 1998, Vol. 0 ›› Issue (1): 101-103.

• 研究论文 • 上一篇    下一篇

水性丙烯酸-聚氨酯微乳液的制备及粒子形态

董岸杰1, 冯士有1, 万同1, 孙多先1, 安英丽2   

  1. 1. 天津大学医学及环境友好材料研究所 天津 300072;
    2. 南开大学吸附分离功能高分子材料国家重点实验室 天津
  • 收稿日期:1997-06-04 修回日期:1997-09-03 出版日期:1998-02-10 发布日期:1998-02-10

The Particle Size and Morphology Studies of Waterborne Acrylic-Polyurethane Hybrid Microemulsions

Dong Anjie1, Feng Shiyou1, Wan Tong1, Sun Duoxian1, An Yingli2   

  1. 1. Institute Of Medical and Environmental Friendly Materials, Tianjin University, Tianjn 300072;
    2. The State Key Laboratory of Functional Polymer Materials for Adsorption and Separation, Nankai University, Tianjin
  • Received:1997-06-04 Revised:1997-09-03 Published:1998-02-10 Online:1998-02-10

PDF

476

被引次数

17

摘要： 水性聚氨醋作为一种环境友好材料近年来得到了迅速的发展,并以其优良的性能在皮革 业、涂料、印刷、油墨等行业呈现广阔的应用前景[1,2].通常采用IPN等技术制备出复合型水性 树脂[3,4],其中具有核壳结构的微乳液尤其受到重视.但研究多集中于微米级乳液的实际应用 开发,对于纳米级、杂化型聚氨醋微乳液微观结构的研究却少见报道.本文通过在自乳化聚氨 醋中自由基引发聚合丙烯酸类单体,制备出了具有核/壳结构的复合型丙烯酸一聚氨醋微乳液,并对微乳液的粒径、粒径分布、粒子形态及交联结构进行了研究.

关键词: 聚氨酯, 微乳液粒, 制备, 核壳结构

Abstract: Core/shell type acrylic-polyurethane hybrid microemulsions in which polyurethaneas the shell and acrylic polymer as the core were prepared successfully.Different cross-link-ing structures between core and shell can be formed by introducing hydroethyl acrylate andadipoyl dihydrazine at the ends of the polyurethane chains.The photon correlation spec-troscopy studies revealed that the mean particle size of the emulsions were smaller than 200nm.The particle morphology results revealed the core/shell structure of the uncross-linkingtype microemulsions and interpenetrating networks of the cross-linking type microemulsions.

Key words: polyurethane, microemulsion particle, preparation, core/shell structure

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