Hydrophobicity and wear resistance of ceria/PTFE composite coatings / Xiao-yan Shao in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 6 (11/2020)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 17, N° 6 (11/2020) . - p. 1549-1557 Titre : Hydrophobicity and wear resistance of ceria/PTFE composite coatings Type de document : texte imprimé Auteurs : Xiao-yan Shao, Auteur ; Li-na Zhu, Auteur ; Wen Yue, Auteur ; Jia-Jie Kang, Auteur ; Guo-zheng Ma, Auteur ; Zhi-qiang Fu, Auteur ; Ding-shun She, Auteur ; Hai-dou Wang, Auteur ; Mei-gui Feng, Auteur ; Cheng-biao Wang, Auteur Année de publication : 2020 Article en page(s) : p. 1549-1557 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact Cerium Hydrophobie Polytétrafluoréthylène Résistance à l'usure Revêtements organiques Surfaces (Physique) Surfaces -- Analyse Topographie Tribologie (technologie) Index. décimale : 667.9 Revêtements et enduits Résumé : For the purposes of investigating the effects of ceria content on the anti-icing, hydrophobicity, and antiwear performances of ceria/polytetrafluoroethylene (PTFE) composite coatings, ceria/PTFE composite coatings with ceria mass fractions of 0%, 1%, 3%, 5%, and 7% were prepared via one-step spraying method. The water contact angles (WCAs) on the composite coatings were measured via contact angle measuring device. The antiwear performance was characterized via ball-on-disk sliding tribo-tests. Experimental results show that the addition of ceria with a content of 5 wt% is the most effective to enhance hydrophobicity of the coatings, resulting from the coating surface structure, roughness, and intrinsic hydrophobicity of ceria. Moreover, the addition of ceria is helpful to the improvement of antiwear performances of PTFE composite coatings, when the content of ceria is 1-7 wt%. Ceria/PTFE composite coatings with a ceria content of 5 wt% show a wear rate of 0.388 x 9 10-4 mm3/Nm, which is 80.6% lower than that of PTFE coating without ceria (2.000 x 10-4/Nm) Note de contenu : - Contact angle and coating surface topography - Hydrophobic mechanism - Tribological properties - Wear mechanism - EDS analysis of worn surfaces DOI : https://doi.org/10.1007/s11998-020-00373-w En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00373-w.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34959 [article]

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