Spreading of trisiloxanes over thin aqueous layers

作者: K. S. Lee , V. M. Starov , T. J. P. Muchatuta , S. I. R. Srikantha

DOI: 10.1134/S1061933X09030119

关键词: WettingMarangoni forceMarangoni effectEthylene glycolChemical physicsSiliconeChemistrySurface tension gradientPolymer chemistryAqueous solution

摘要: Surfactants are widely spread in nature and increasingly used industry as wetting, cleaning disinfecting agents. Recently, there newly discovered trisiloxanes other silicone based surfactants which show very unusual spreading behaviour. Although a number of experimental theoretical investigations have been carried out, the underlying mechanism remains unclear. Experiments using comparison with 3 different poly(ethylene glycol) monododecyl ethers (C12E4, C12E5, C12E6) were performed to understand influence Marangoni force driving for spreading. We then compared our results available predictions literature. The obtained data showed opposite trend developed regular surfactants. latter is assumed be special feature “superspreaders”.

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