Preparation and Properties of Sulfonate Fluorosilicone Surfactant
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    Abstract:

    Sulfonate fluorosilicone surfactant(FPESS)was synthesized with ring-opening polymerization,hydrosilylation and sulfonate reaction using octamethylcyclotetrasiloxane(D4),1,3,5-trimethyl-1,3,5-tris(3,3,3 -trifluoropropyl)cyclotrisiloxane(D3F),1,1,3,3-tetramethyldisiloxane(D2H),allyl epoxy polyether and potassium hydrogen sulphite as the raw materials. The chemical structure of the FPESS is characterized by Infrared Spectroscopy and Nuclear Magnetic Resonance Spectroscopy,the FPESS sulfonate reaction conditions were optimized,and the surface tension,foam ability,emulsifying ability,acid-resisting,alkali-resisting and salt-resisting ,stability in hard water of FPESS were measured.The optimum sulfonate reaction condition of synthetise FPESS results showed that epoxy group and potassium hydrogen sulphite molar ratio was 1:1.2,reaction temperature was 60癈,reaction time was 6h .The results of performance test showed that the surface tension (γcmc) of FPESS solution was 21.01 m N/m at the critical micelle concentration (cmc) of 2.0 g/L,the foaming power of 0.1% (mass fraction) FPESS solution was 1.47 and foam stability after 5 min was 0.71,the 0.5% (mass fraction) of FPESS had good emulsifying power to kerosene,epetroleum ether,isoamyl alcohol,the FPESS solution had excellent chemical stability of acid-resisting,alkali-resisting and salt-resisting,the stability of FPESS in hard water was grade 4.

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History
  • Received:July 04,2016
  • Revised:September 09,2016
  • Adopted:September 27,2016
  • Online: December 23,2016
  • Published:
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