Heterogeneous polymer-containing films: a comparison of macroscopic properties with microscopic properties determined by atomic force microscopy
Literature Information
The aim of the study was to evaluate the extent to which a quantitative and automatic analysis of the surface properties of heterogeneous polymer-containing films such as paints is possible by atomic force microscopy. Therefore, paints based on different dispersions were investigated. Force–distance curves were measured automatically at 64×64 points of the samples. From the analysis of these force curves, a distribution of properties such as local elasticity, adhesion and penetration depth were obtained. Peaks in these distributions could be correlated with specific regions in the film such as binder or pigment. Peaks corresponding to the binder correlated with macroscopic properties such as glass transition temperature, tack and ball pressure hardness. In addition, from topographic images the roughness was calculated. As the roughness increases, the gloss decreases.
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Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.












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