应用化学 ›› 2009, Vol. 26 ›› Issue (6): 642-645.

• 研究论文 • 上一篇    下一篇

环氧树脂-聚醚-三乙烯四胺嵌段聚合物的表面活性研究

周继亮,   

  1. 中南民族大学化学与材料科学学院
  • 收稿日期:2008-04-29 修回日期:2008-06-24 出版日期:2009-06-10 发布日期:2009-06-10
  • 通讯作者: 周继亮

Study of the Surface Activity of Block Copolymer Surfactants of TETA-DGEPG-EPON834

  • Received:2008-04-29 Revised:2008-06-24 Published:2009-06-10 Online:2009-06-10

摘要:

本文对含有环氧树脂分子链段、聚醚链段及三乙烯四胺链段的系列多嵌段聚合物(TETA-DGEPG-EPON828、TETA-DGEPG-EPON834及TETA-DGEPG-EPON1001加成物)进行了合成与表征。其HLB的估算值分别为16.6、15.8、13.0;浊点分别为91.0℃、89.0℃、81.0℃,它们能将水溶液表面张力从74mN•m-1降低到36.4~39.4mN•m-1。通过其理化性能的研究,结果表明TETA-DGEPG-EPON834具有优良的水溶性和良好的表面活性。选用它作为相反转乳化剂,可制备出稳定的纳米级的CARDURA E-10封端的EPON828-TETA加成物的水性环氧固化剂胺基分散体乳液。

关键词: 环氧树脂, 乳化剂, 固化剂, 环氧树脂, 乳化剂, 固化剂

Abstract:

In this article, the block copolymer surfactants of TETA-DGEPG-EPON828, TETA-DGEPG-EPON834, TETA-DGEPG-EPON1001 were synthesized and characterized. The hydrophile-lipophile balance (HLB) value of them obtained by calculation were 16.6, 15.8, 13.0. And the cloud point of them were 91.0℃, 89.0℃ and 81.0℃. The surface tension of them in aqueous solution at 25℃ were investigated. The results showed that they could reduce the surface tension in aqueous solution from 74mN•m-1 to 36.4~39.4mN•m-1. From the study on the physicochemical properties, it was shown that TETA-DGEPG-EPON834 had good water-solubility ability and favorable surface performance. The TETA-DGEPG-EPON834 can be used as phase inversion emulsifiers to prepare stable aqueous amine dispersion of EPON828-TETA adduct terminated by CARDURA E10 with the average particle size well below 1µm.

Key words: epoxy resin, emulsifying agent, curing agent