Nanocomposite acrylic paint with self-cleaning action

• Type: Article in International Scientific Journal
• Date: 2012

Authors

Catarina Carneiro (Author) FEUP; Ricardo Vieira (Author) FEUP; Adélio M. Mendes (Author) FEUP; Fernão D. Magalhães (Author) FEUP

Journal

Title: Journal of Coatings Technology and Research

Vol. 9 No. 6

Pages: 687-693

ISSN: 1945-9645

Publisher: Springer

Indexing

ISI Web of Knowledge - 10 Citations

ISI Web of Science

Scopus - 16 Citations

INSPEC

Scientific classification

FOS: Engineering and technology > Materials engineering

Associated Projects

PTDC/EQU-EQU/65300/2006 - Nanocompósitos de óxidos metálicos para melhoria da resistência química e ambiental de revestimentos orgânicos

Other information

Authenticus ID: P-002-42Y

DOI: 10.1007/s11998-012-9407-9

Abstract (EN): A nanodispersion of surface-functionalized fumed silica was incorporated into an acrylic paint formulation. SEM imaging indicated good dispersion of silica within the polymer matrix. This hybrid coating showed significantly lower dirt pick-up than the equivalent paint formulation without nanosilica additive, towards both organic and inorganic ashes. Washing with running water further decreases dirt retention. This self-cleaning performance remained unchanged after several dirt/washing cycles, during a 1-month period. Surface hardness measurements indicated no significant differences between the original and composite paint films. The lower dirt pick-up was attributed to nanoroughness created by the nanosilica particles present in the film.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7