Ishikawa Yusuke, Orito Shintaro, Oya Masaru
Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan.
J Oleo Sci. 2007;56(4):163-8. doi: 10.5650/jos.56.163.
In a previous study, statistical method using two distributions was applied to analyze detergency of oily soil. The method uses statistical distributions of detergent power and adhesive force of soil. In this paper, this method was applied to an analysis of detergency of solid particles. Soiled cotton cloth was prepared with red iron oxide dispersion liquid in Terg-O-Tometer. Four-time consecutive washings tests were conducted with dodecyl sulfuric acid sodium salt (SDS) and alcohol ethoxylate (AE) aqueous solutions in Terg-O-Tometer. Change of removal efficiencies due to repetitive washing was utilized to seek the two distributions. Predicted removal efficiencies calculated from computer simulation corresponded to experimental values. Different adhered states of soil, prepared by varying soiling conditions, were expressed as Removal Resistance. As soiling mechanical power increased, Removal Resistance shifted toward higher adhesive force of soil and an amount of soil had also increased. Iron oxide concentration only had an affect on an amount of soil. The results showed that the method using two statistical distributions can be applied to the detergency of solid particle.
在之前的一项研究中，运用了采用两种分布的统计方法来分析油性污垢的去污力。该方法使用了去污力和污垢附着力的统计分布。本文将此方法应用于固体颗粒去污力的分析。在特格-奥-托梅特仪器中用红色氧化铁分散液制备污染棉布。在特格-奥-托梅特仪器中用十二烷基硫酸钠（SDS）和醇乙氧基化物（AE）水溶液进行连续四次洗涤试验。利用重复洗涤导致的去除效率变化来寻找这两种分布。通过计算机模拟计算得到的预测去除效率与实验值相符。通过改变污染条件制备的不同污垢附着状态用去污阻力来表示。随着污染机械力的增加，去污阻力向污垢更高的附着力方向移动，并且污垢量也增加了。氧化铁浓度仅对污垢量有影响。结果表明，采用两种统计分布的方法可应用于固体颗粒的去污力分析。
