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Measurement of mar resistance and study of marring mechanism of polymeric coatings with scanning probe microscope / Weidian C. Shen in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 72, N° 907 (08/2000)
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Titre : Measurement of mar resistance and study of marring mechanism of polymeric coatings with scanning probe microscope Type de document : texte imprimé Auteurs : Weidian C. Shen, Auteur ; Frank N. Jones, Auteur ; Bin Jiang, Auteur Année de publication : 2000 Article en page(s) : p. 89-95 Note générale : Bibliogr. Langues : Américain (ame) Tags : Matériau revêtement Peinture Feuil Dégradation Propriété mécanique Résistance abrasion Etude expérimentale Microscopie champ proche Index. décimale : 667.9 Revêtements et enduits Résumé : A scanning probe microscope (SPM) equipped with a custom-made probe, consisting of a diamond tip and rectangular tungsten cantilever, was used to measure the mar resistance of crosslinked polymeric surface coatings at micron and submicron scales. The term mar is used to describe the surface damage of coatings, which may not be readily noticeable individually, however, the existence of many mars does degrade the appearance of coatings. Good mar resistance is a requirement for many coatings applications. With the unique high resolution of the SPM, the dimension of the mars can be measured with great accuracy, thus different responses of coatings to the marring stress, i.e., elastic recovery, plastic deformation, and abrasive wear, can be identified quantitatively. In addition, the dynamic process of marring, including viscoelastic creep, strain-hardening, micro-cracking, and surface fatigue, has also been studied with the SPM. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5856
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