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Citation: ZHOU Ji-Liang, TU Wei-Ping. Surface Activity of Block Copolymer Surfactants of TETA-DGEPG-EPON[J]. Chinese Journal of Applied Chemistry, ;2009, 26(6): 642-645. shu

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

ZHOU Ji-Liang ^, ,
TU Wei-Ping

1.
a College of Chemistry and Material Science, South-central University for Nationalities, Wuhan 430074;
2.
b College of Chemical Engineering and Energy Source, South China University of Technology, Guangzhou

Corresponding author: ZHOU Ji-Liang,
Received Date: 11 May 2008
Available Online: 17 July 2008

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.
- epoxy resin,
- emulsifying agent,
- curing agent,
- surface activity
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