非水系洗浄液中における固体粒子よごれの汚染性

概要

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The author investigated the effect of water on soil deposition in nonaqueous surfactant solution systems. The deposition of carbon black and ferric oxide on cellulose, polyamide and polyethylene powders were examined in n-hexane and tetrachloroethylene solutions of sodium dioctylsulf osuccinate (AOT).<BR>The degree of soil deposition was independent of concentration of AOT, and was affected by the amount of water contained in the systems. In the case of carbon black, curves of the degree of deposition against the content of water in solution showed a maximum for cellulose and polyamide in each system, but not for polyethylene.<BR>A similar behavior was observed in the case of ferric oxide, but the maximum in the curves was not distinct.<BR>These results seem to be attributed to the amount of water adsorbed and the nature of the surface which may also adsorb the surfactant.
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