环氧树脂-聚醚-三乙烯四胺嵌段聚合物的表面活性  

Surface Activity of Block Copolymer Surfactants of TETA-DGEPG-EPON

作　　者：周继亮[1] 涂伟萍[2] 

机构地区：[1]中南民族大学化学与材料科学学院,武汉430074 [2]华南理工大学化工与能源学院

出　　处：《应用化学》2009年第6期642-645,共4页Chinese Journal of Applied Chemistry

摘　　要：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和13.0,浊点分别为91.0、89.0和81.0℃。合成物能将水溶液表面张力从74 mN/m降低至36.4-39.4 mN/m。理化性能研究结果表明,TETA-DGEPG-EPON834具有优良的水溶性和良好的表面活性,用它作为相反转乳化剂,可制备出稳定的纳米级CARDURA E-10封端的EPON828-TETA加成物水性环氧固化剂胺基分散体乳液。Block copolymer surfactants of TETA-DGEPG-EPON828, TETA-DGEPG-EPON834, TETA-DGEPG-EPON1001 were synthesized and characterized. The hydrophile-lipophile balance（HLB） values were 16. 6, 15.8 and 13.0 respectively obtained by calculation. The cloud points were 91.0 ℃, 89.0 ℃ and 81.0 ℃, respectively. The surface tensions of the obtained surfactants in aqueous solution at 25 ℃ were investigated. The results show that they could reduce the surface tension in aqueous solution from 74 mN/m to 36. 4- 39. 4 mN/m. From the study on the physicochemical properties, it shows that TETA-DGEPG- EPON834 had a good water-solubility and favorable surface performance. TETA-DGEPG-EPON834 can be used as phase inversion emulsifiers to prepare stable aqueous amine dispersion of EPON828-TETA adduct terminated with CARDURA E10, and the average particle size is well below 1 μm.

关 键 词：环氧树脂 乳化剂 固化剂 表面活性 

分 类 号：O647.2[理学—物理化学]