Abstract Adhesion forces between microparticles and substrates is a parameter of fundamental importance in studies of surfaces contamination and decontamination, filter and surface cleaning, non-contact sampling, and environmental and occupational health assessments. This parameter can be estimated theoretically or determined experimentally. Due to the specificities of the processes, the experimental determination is one of the best choices. Techniques commonly used to determine the particle-substrates adhesion forces include the atomic force microscopy (AFM), electric field detachment method, the aerodynamic detachment, and the centrifuge method. The capability to measure several particles simultaneously; and to determine the adhesion forces of regular and irregular real powders on smooth or rough surfaces in a single experiment, producing statistically reliable results are some advantages attributed to the centrifugation technique. This work aimed to use the centrifuge technique to determine adhesion forces between soot particles and cellulose ester membranes. The effects of the average particles size (11.1 to 29.0 µm), powder consolidation relative centrifuge forces (press-on forces − 63.7, 255.0 and 1,593.6 RCF), and pore size of cellulose ester membranes (0.2 µm and 0.8 µm) were investigated. Adhesion forces between the soot and cellulose ester membrane substrates were directly affected by the press-on forces, by the average diameter of the soot particles, and by the pore size of the cellulose ester membranes. The theoretical models of Johnson–Kendall–Roberts (JKR) and of Derjaguin-Muller-Toporov (DMT) described the trend of adhesion forces as affected by the soot particle’s diameter; although showed high deviation from the experimental data. Copyright © 2020 American Association for Aerosol Research

中文翻译：

---

通过离心技术测定烟灰颗粒对纤维素酯膜的粘附强度

摘要 微粒和基材之间的粘附力是表面污染和去污、过滤和表面清洁、非接触式取样以及环境和职业健康评估研究中的一个基本重要参数。该参数可以从理论上估计或通过实验确定。由于过程的特殊性，实验测定是最佳选择之一。常用来确定粒子-基材粘附力的技术包括原子力显微镜 (AFM)、电场分离法、空气动力分离法和离心机法。同时测量多个粒子的能力；并在单个实验中确定规则和不规则真实粉末在光滑或粗糙表面上的附着力，产生统计上可靠的结果是离心技术的一些优点。这项工作旨在使用离心技术来确定烟灰颗粒和纤维素酯膜之间的粘附力。研究了平均粒径（11.1 至 29.0 µm）、粉末固结相对离心力（压入力 - 63.7、255.0 和 1,593.6 RCF）和纤维素酯膜孔径（0.2 µm 和 0.8 µm）的影响。烟灰和纤维素酯膜基材之间的粘附力直接受压紧力、烟灰颗粒的平均直径和纤维素酯膜孔径的影响。Johnson-Kendall-Roberts (JKR) 和 Derjaguin-Muller-Toporov (DMT) 的理论模型描述了受烟尘颗粒直径影响的粘附力趋势；虽然表现出与实验数据的高度偏差。版权所有 © 2020 美国气溶胶研究协会