Probability density functional method was used to determine whether interaction between mechanical force and chemical action in cleaning was an additive effect, a synergistic effect, or an offsetting effect. As a soiled sample, iron (III) oxide soiled fabric, Sudan IV soiled fabric, commercially available artificial soiled fabric containing mixed stains, etc. were used and washed with a tergotometer. Mean value μ_rl and standard deviation σ_rl of the cleaning force distribution were calculated by using probability density functional method, and the interaction was judged using Δμ_rl which is the difference between μ_rl obtained under the two conditions. As results, additive effects between the mechanical force and the pH effect were confirmed in the cleaning of iron (III) oxide soiled fabric and commercially available artificially soiled fabric, and an additive effect between the mechanical force and the effect of the surfactant concentration was confirmed in the cleaning of Sudan IV soiled fabric. Therefore, it was presumed that an additive effect is often established between the mechanical action and the chemical action in cleaning, rather than a synergistic effect or an offsetting effect.

中文翻译：

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概率密度泛函法分析清洗现象中机械力与化学作用的相互作用

概率密度泛函方法用于确定清洁中机械力和化学作用之间的相互作用是加性效应、协同效应还是抵消效应。作为污渍样品，使用氧化铁(III)污渍织物、苏丹IV污渍织物、含有混合污渍的市售人造污渍织物等并用tergotometer洗涤。使用概率密度泛函方法计算清洁力分布的平均值μ _rl和标准偏差σ _{rl ，并使用}μ _rl之间的差异Δμ _{rl来判断相互作用}两种条件下获得。结果，在氧化铁(III)污染织物和市售人工污染织物的清洗中证实了机械力和pH效应之间的相加效应，并且证实了机械力和表面活性剂浓度的影响之间的相加效应在苏丹 IV 脏织物的清洗中。因此，推测清洁中的机械作用和化学作用之间往往建立了一种相加效应，而不是协同效应或抵消效应。